Features
Schema-Free Triple Store
BrightstarDB implements the powerfully simple W3C Semantic Web data model, RDF. The RDF data model uses triples to represent data of all shapes. BrightstarDB does not require the definition of fixed schema, allowing great flexibility in what data is stored and how it is connected together. This associative data model is a great fit for many real world applications.
Transactional
BrightstarDB offers a fully ACID transaction model where commits never block reads, reads never block updates and reads never see uncommitted updates.
High Performance
Thanks to automatic, dedicated indexes, client and server caching models BrightstarDB is blisteringly fast for updates and reads.
NoSQL Entity Framework
BrightstarDB is unique in that it offers a full Entity Framework model over the underlying data store. This means developers have the flexibility of a NoSQL store but with the power and familiarity of working with typed objects when building applications.
LINQ & OData Support
On .NET the language of query is LINQ. BrightstarDB has a custom LINQ implementation that maps LINQ queries into SPARQL to be run natively against the data. Through its Entity Framework any BrightstarDB store can expose an OData endpoint.
SPARQL Support
BrightstarDB implements the W3C SPARQL 1.1 standard. Both SPARQL query and update are supported. SPARQL queries can be executed through the BrightstarDB API. The Server and Enterprise versions of BrightstarDB also provide a REST service that implements the W3C SPARQL Protocol standard for executing SPARQL query or update via HTTP.
Historical Data Access
BrightstarDB never overwrites data, meaning it is possible to access a store at any point in its life time. Query the data as it stood a month ago, or even roll back the store to any previous point. Data stores can periodically be condensed to remove historical data if required.
Automatic Indexing
Many SQL and NoSQL systems require the developer to define all the required indexes for their specific application. BrightstarDB automatically indexes all relationships and property values at insert time.
Polaris Database Management Application
The Polaris database management application allows users to create new BrightstarDB databases, import and export data, execute SPARQL queries and updates and browse the historical state of a store.
SDShare Data Integration
SDShare is a protocol for exposing data from existing data silos as simple ATOM feeds. BrightstarDB SDShare Server implements this protocol and provides an SDShare feed consumer that can populate a BrightstarDB instance. Data connectors for ODBC, OData and SPARQL endpoints are provided. SDShare is typically used to aggregate data from multiple systems into a single data store that can then be queried.
Compare Versions
| Feature | Mobile | Embedded | Server | Enterprise |
|---|---|---|---|---|
| Code-first Entity Framework and LINQ support | yes | yes | yes | yes |
| Windows Phone (7.5, 8) SDK | yes | yes | yes | yes |
| .NET 4.0 SDK | no | yes | yes | yes |
| Polaris Database Management Application | no | no | yes | yes |
| SPARQL and OData Endpoints | no | no | yes | yes |
| Runs as Windows Service | no | no | yes | yes |
| SDShare Data Integration | no | no | no | yes |


--- title: Permissions ---
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Permission 7100 Permission 8100 Permission 9100


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Each named section referenced by an AddReg directive has the following form:
[add-registry-section]
reg-root, [subkey], [value-entry-name], [flags], [value]
An HKR specification in such an add-registry section designates the ..Class\SetupClassGUID\device-instance-id registry path to the user-accessible driver (a.k.a. "software" key).
Please note the importance of the commas - ignoring one would cause erroneous entries/values to appear in the registry.
See Also
If an INF specifies a Class it should also specify the corresponding system-defined GUID value for its ClassGUID entry. Specifying the matching GUID value for a device of any predefined device setup class can install such a device and its driver(s) faster since this helps the system setup code to optimize its INF searching.
See Also
For a Windows 2000 device/driver(s) INF, such a GUID value determines the device (setup) class subkey in the registry ...\Class tree under which to write registry information for the driver(s) of device(s) installed from this INF file. This class-specific GUID value also identifies the device-class installer for the type of device and class-specific property-page provider, if any.
For a new device setup class, the INF must specify a newly generated ClassGUID value. For more information about creating GUIDs, see the Setup, Plug & Play, and Power Management Design Guide in the Windows 2000 DDK.
Typically, a ControlFlags section has one or more ExcludeFromSelect entries to control which device(s) listed in the per-manufacturer Models section of INF file will not be displayed to the end user as options during manual installations.
INFs that install exclusively PnP devices also have this section unless they set the NoInstallClass value entry in their respective SetupClassGUID keys to TRUE, as already described in the reference for the ClassInstall32 section.
Entry Values
hw-id
CopyFilesOnly
InteractiveInstall
This entry is optional. The preferred way to install devices is to omit this entry and allow Setup to install the device in the context of a trusted system thread, if possible. However, if a device absolutely requires a user to be logged in when the device is installed, include this entry in the device INF. This entry is not supported on Windows 9x systems.
See Also
CopyFiles
=@filename | file-list-section[,file-list-section] ...
The DefaultDestDir entry in the DestinationDirs section of the INF specifies the destination for any single file to be copied. The SourceDisksNames and SourceDisksFiles sections, or an additional INF specified in the LayoutFile entry of this INF's Version section, provides the location on the distribution media of the driver file(s).
See Also
[DDInstall] |
[DDInstall.nt] |
[DDInstall.ntx86]
Each per-Models DDInstall section contains an optional DriverVer entry and one or more directives referencing additional named sections in the INF file, shown here with the most commonly specified INF directives, CopyFiles and AddReg, listed first. The sections referenced by these directives contain instructions for installing driver files and writing any device-specific and/or driver-specific information into the registry.
RenFiles=file-list-section[,file-list-section]...
DelReg=del-registry-section[,del-registry-section]...
Typically, this directive is used to handle upgrades when an INF must clean up old registry entries from a previous installation of this device. An HKR specification in such a delete-registry section designates the ..Class\SetupClassGUID\device-instance-id registry path to the user-accessible driver (a.k.a. "software" key).
BitReg=bit-registry-section[,bit-registry-section]...
LogConfig=log-config-section[,log-config-section]...
The LogConfig directive is never used to install PnP peripheral devices, but, for more information about using a DDInstall.LogConfigOverride section to override the hardware resource requirements reported by the underlying bus, see the reference for this directive later in this chapter.
This directive is irrelevant to all higher level (nondevice) drivers and components.
ProfileItems=profile-items-section[,profile-items-section]...
This directive is only supported on Windows 2000 platforms.
UpdateInis=update-ini-section[,update-ini-section]...
UpdateIniFields=update-inifields-section[,update-inifields-section]...
Ini2Reg=ini-to-registry-section[,ini-to-registry-section]...
See Also
[DDInstall.Interfaces] |
[DDInstall.nt.Interfaces] |
[DDInstall.ntx86.Interfaces]
Each per-Models DDInstall.Interfaces section can have one or more AddInterface directives, depending on how many predefined device interfaces a particular device/driver supports and/or how many new (and compatible with existing) device interfaces the driver(s) of that device export for use by still higher level components.
To support existing device interfaces, such as any of the system's predefined kernel-streaming interfaces, specify the appropriate interfaceGUID value(s) in this section. To install a component, such as a class driver, that exports a whole new class of device interfaces, an INF also must have an InterfaceInstall32 section.
Directives and Entries
AddInterface ={interfaceGUID} [, [reference string] [,[add-interface-section] [,flags]]] ...
An add-interface-section typically references an add-registry section that contains value entries to be stored in the registry about the interface(s) supported by the device/driver. An HKR specified in such an add-registry section designates the user-accessible device-interface subkey of the ..DeviceClasses\{InterfaceClassGuid}\ registry branch. In the Windows 2000 registry, DeviceClasses is a subkey of the ..CurrentControlSet\Control key.
See Also the AddInterface entries in the INF.
See Also
[DDInstall.Services] |
[DDInstall.nt.Services] |
[DDInstall.ntx86.Services]
Each per-Models DDInstall.Services section contains one or more AddService directives referencing additional INF-writer-defined section(s) in a Windows 2000 INF file.
Windows 2000 INFs commonly use the DDInstall.Services section with at least one AddService directive to control how and when the services of a particular driver are loaded, any dependencies on other services or on underlying (legacy) drivers it might have, and so forth. Optionally, they set up event-logging services by the device driver(s) as well.
Directives and Entries
AddService=ServiceName,[flags],service-install-section[,event-log-install-section[,[EventLogType][,EventName]]]...
DelService=ServiceName[,[flags][,[EventLogType][,EventName]]]...
See Also
[DefaultDestDir=dirid[,subdir]]
[file-list-section=dirid[,subdir]] ...
A DestinationDirs section specifies the target destination directory or directories for all copy, delete, and/or rename operations on files referenced by name elsewhere in the INF file.
This section is required in any INF that uses a CopyFiles directive or that references a file-list-section, whether with a CopyFiles, DelFiles, or RenFiles directive.
Entry Values
DefaultDestDir=dirid[,subdir]]
12 = Drivers directory; equivalent to %windir%\system32\drivers on Windows 2000 and to %windir%\system\IOSubsys on Win9x platforms.
10 = Windows directory; equivalent to %windir% on both platforms.
See the Reference/Setup/INF DestinationDirs section in the Windows 2000 DDK for a complete list of these values.
See Also
For instance, this is the class that includes the Audio and DVD multimedia devices, joystick ports, and full-motion video-capture devices.
Multimedia
DriverVer=mm/dd/yyyy[,x.y.v.z]
The mm/dd/yyyy value specifies the date of the driver package, including the driver files and the INF. This date should be the most recent date of any file in the driver package. A hyphen (-) can be used as the date field separator in place of the slash (/).
The x.y.v.z specifies an optional version number. This value is for display purposes only (for example, in the Device Manager). The OS does not use this value for driver selection.
When the OS searches for drivers, it chooses a driver with a more recent DriverVer date over a driver with an earlier date. If an INF has no DriverVer entry or is unsigned, the OS applies the default date of 00/00/0000.
A Windows 2000 INF should have a DriverVer entry in its Version section and/or in the individual DDInstall sections. If there is a DriverVer entry in a DDInstall section, the OS uses that entry instead of the one in the Version section for that particular device.
Windows 98 does not recognize a DriverVer entry in the Version section. Therefore, an INF that will be used on Windows 98 should have DriverVer entries in the undecorated DDInstall sections that are used by Windows 98.
See Also
For example, the system INFs for device drivers that depend on the system's kernel-streaming support specify this entry as
Include= ks.inf[, [kscaptur.inf,] [ksfilter.inf]].
See Also
INF files that are not distributed with the OS itself must omit this entry and have SourceDisksNames and SourceDisksFiles sections instead. By convention, these two sections follow the Version section.
The Manufacturer section identifies the manufacturer of one or more devices that can be installed using the INF file. It also defines the [Models] section name for the installation of that manufacturer's devices and their driver(s).
manufacturer-name
See Also
A per-manufacturer Models section identifies at least one device, references the [DDInstall] section of the INF file for that device, and specifies a unique-to-the-INF hardware identifier for that device. Any entry in the per-manufacturer Models section also can specify one or more additional device ID(s) for model(s) compatible with the device designated by the initial HW ID and controlled by the same driver(s).
Each INF-writer-defined models-section-name must be referenced in the Manufacturer section of the INF file. There can be one or more entries in any per-manufacturer Models section, depending upon how many devices (and drivers) the INF file installs for a particular manufacturer.
Note that a single device can have more than one hw-id value. The PnP Manager uses each such hw-id value, which is usually provided by the underlying bus when it enumerates its child devices, to create a subkey for each such device in the registry ..Enum branch. For manually installed devices, the system's setup code uses their hw-id values as specified in their respective INF files to create each such registry subkey.
See Also
Needs =inf-section-name[,inf-section-name]...
For example, the INFs for device drivers that have the preceding Include entry specify this entry as
Needs= KS.Registration[, KSCAPTUR.Registration |
KSCAPTUR.Registration.NT, MSPCLOCK.Installation]
See Also
For example, INFs supplied with the system typically specify the INF-creator as %Msft% and define %Msft% = "Microsoft" in their Strings sections.
If an INF is used to install device(s)/driver(s) on both Windows 9x and Windows 2000 platforms, it must designate any OS-specific installation information by appending system-defined extension(s) to its DDInstall section(s), whether the signature-name is $Windows NT$, $Chicago$, or $Windows 95$.
See Also
[SourceDisksFiles]
| [SourceDisksFiles.x86]
A SourceDisksFiles section names the source files used during installation, identifies the source disks (or CD-ROM discs) that contain those files, and provides the path to the subdirectories, if any, on the distribution disks containing individual files.
Entry Values
If this value is omitted from an entry, the named source file is assumed to be in the root directory or in the path directory that was specified in the SourceDisksNames section for the given disk.
See Also
[SourceDisksNames] | [SourceDisksNames.x86]
A SourceDisksNames section identifies the distribution disk(s) or CD-ROM disc(s) that contain the source files to be transferred to the target machine during installation.
Entry Values
Every %strkey% specification in this section must be defined in the INF's Strings section. Any disk-description that is not a %strkey% token is a user-visible string that must be delimited by double-quote characters (") if it has any leading or trailing spaces.
Setup uses a tag file to verify that the user inserted the correct installation disk. Tag files are only used for removeable media.
A vendor can also use a tag file to contain a "cabinet" of compressed installation files. If tagfile has the extension .cab, Setup uses it as a tag file and as a source of installation files.
Subdirectories containing particular source files can be specified relative to a given path directory in the corresponding SourceDisksFiles section of the INF file. However, any tagfile supplied on the distribution disk must reside either in the given path directory or, if path is omitted, in the root directory.
See Also
An INF file must have at least one Strings section to define every %strkey% token specified elsewhere in that INF.
Entry Values
See Also
(Click on each of the entries to go to their respective glossary entry.)


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An object that contains information about the current AngularJS version. This object has the following properties:
full
– {string}
– Full version string, such as "0.9.18".major
– {number}
– Major version number, such as "0".minor
– {number}
– Minor version number, such as "9".dot
– {number}
– Dot version number, such as "18".codeName
– {string}
– Code name of the release, such as "jiggling-armfat".


What Is a Subnet?Typically companies or organizations request and are assigned a network ID from their ISP, and large ISPs are assigned blocks of Class C and possibly Class B network IDs from the Internet Assigned Number Authority (IANA) (formerly InterNIC). (The IANA is the organization responsible for assigning IP addresses in an efficient manner worldwide.) For example, a company with 100 employees would be assigned a Class C network address. As you recall from our discussion in Hour 4,"The Internet Layer" a Class C address allows for 254 usable nodes, which should be more than enough for 100 people. But what if this company is structured into 10 person offices in 10 cities? How would you connect all 100 people in these distant locations using one network ID? The answer is to subnet. As mentioned in this hour's introduction, subnetting is a technique for dividing Class A, B, or C IP address blocks into multiple, smaller IP address blocks of addresses for more efficient usage. Benefits of SubnettingThere are several reasons why you might want or need to subnet a network ID. The preceding scenario is the most common reason for subnetting. However, other compelling reasons exist for you to consider subnetting:
Implementing SubnettingThe process of subnetting should not be taken lightly, as it does require a good amount of forethought, planning, and precision. Many people find the subject daunting, tedious, or even scary. But be assured it doesn't have to be that way. The process is actually very logical and has only a few rules that you must abide by. If you buy a pie at the local pie shop and take it home, how do you decide how many pieces to cut the pie into? You would probably first determine how many hungry people are present then cut the pie into the appropriate number of slices. If four people are present, each slice is quite large; if 16 people are present everybody is only going to get a sliver. The pie example is analogous to subnetting. If you divide a block of addresses from a network ID into four groups, each group still has a fairly large number of addresses. If it is divided into 16 or more groups, obviously there are fewer addresses per group. One of the rules of subnetting is you must throw away the first and the last item. You lose two groups of addresses: One group is from the beginning of the block of network addresses while the second group is from the end of the block of network addresses. Returning to the pie example, if the pie is cut into two pieces, and the two pieces are thrown away, nobody eats! If the pie is cut into four slices, half the pie gets thrown away. If the pie is cut into eight slices, then two slices or one quarter of the pie is wasted. If the pie is cut into 16 narrow slices, then only two slices or one eighth of the total is lost, and so on. As you can see, the more slices you make, the less the amount of total waste. The same is true for subnetting. When you subnet a network ID, the amount of loss can range from a small percentage to, in the worse case, roughly half the addresses. As in the pie example the greatest loss from eliminating the first and last group occurs when the number of subnets is small, while the least loss occurs when there are many subnets. In addition to the losses just described, there are additional losses. You will recall that a Class C network ID has 256 addresses. However two of the addresses, the first and last, are not usable. This leaves 254 usable addresses. When you create subnets, each subnet loses the first and the last address within the subnet. The greatest losses here occur when each group contains a small number of addresses. Suppose you divide a Class C network with 256 addresses into 16 subnets, with 16 addresses per subnet. You would need to "throw away" two subnets, for example, 2x16=32 addresses. In the 14 remaining subnets you must also throw away two addresses per subnet, for example, 14x2=28 addresses. When combined, for example, 32+28=60 you lose a total of 60 addresses from the original 256 due to subnetting. If you look at the three conversion tables in the next section, you will notice that the least total loss occurs in the middle of the subnet range. You typically want to avoid using the ends of a subnet range if possible. As you do your planning of how to subnet your network ID, try to find the best balance between the three items listed below. Be sure to plan for future growth so that you will not need to reengineer your subnets anytime soon.
Conversion TablesThe following tables show the allowable combinations of network segments and nodes you can derive when subnetting. Using the previous example of a Class C network with 10 locations of 10 people each, you can see that using four subnet bits from the leftmost column of the chart would allow up to 14 subnets with up to 14 nodes per subnetwork. This meets our current needs and allows for some future growth as well. If some offices grow to 20 people for instance, a second subnet can be used to handle the additional users. At the beginning and end of each table you will notice rows that contain the word "Invalid." This indicates combinations of subnet bits that would yield either zero usable subnets, or zero usable nodes per subnet. These would be analogous to cutting the pie in half where no one would eat, or cutting the pie into such thin slices that again no one would eat. The valid portion of each table ranges from two usable subnets near the top of each chart, to two usable nodes near the bottom of each chart. A Class C network can be subnetted as shown in Table 5.1. Table 5.1 Class C Subnetting
A Class B network can be subnetted as shown in Table 5.2. Table 5.2 Class B Subnetting
A Class A network can be subnetted as shown in Table 5.3. Table 5.3 Class A Subnetting
|


Kiambu Road, Kiambu Road
4 4
Just 500meters from the tarmac, from the hustle and bustle of the busy town. Eden ville is approximately 10 minutes drive from the CBD and major business centers like Two Rivers, Village Market and Ciata malls.
Very ideal for families with kids going to International schools like Sabis, Crawford, Brae burn and Brook-house because they are in the neighborhood.


When I found that I was a prisoner a sort of wild feeling came over me. I rushed up and down the stairs, trying every door and peering out of every window I could find, but after a little the conviction of my helplessness overpowered all other feelings. When I look back after a few hours I think I must have been mad for the time, for I behaved much as a rat does in a trap. When, however, the conviction had come to me that I was helpless I sat down quietly, as quietly as I have ever done anything in my life, and began to think over what was best to be done. I am thinking still, and as yet have come to no definite conclusion. Of one thing only am I certain. That it is no use making my ideas known to the Count. He knows well that I am imprisoned, and as he has done it himself, and has doubtless his own motives for it, he would only deceive me if I trusted him fully with the facts. So far as I can see, my only plan will be to keep my knowledge and my fears to myself, and my eyes open. I am, I know, either being deceived, like a baby, by my own fears, or else I am in desperate straits, and if the latter be so, I need, and shall need, all my brains to get through.
I had hardly come to this conclusion when I heard the great door below shut, and knew that the Count had returned. He did not come at once into the library, so I went cautiously to my own room and found him making the bed. This was odd, but only confirmed what I had all along thought, that there are no servants in the house. When later I saw him through the chink of the hinges of the door laying the table in the dining room, I was assured of it. For if he does himself all these menial offices, surely it is proof that there is no one else in the castle, it must have been the Count himself who was the driver of the coach that brought me here. This is a terrible thought, for if so, what does it mean that he could control the wolves, as he did, by only holding up his hand for silence? How was it that all the people at Bistritz and on the coach had some terrible fear for me? What meant the giving of the crucifix, of the garlic, of the wild rose, of the mountain ash?
Bless that good, good woman who hung the crucifix round my neck! For it is a comfort and a strength to me whenever I touch it. It is odd that a thing which I have been taught to regard with disfavour and as idolatrous should in a time of loneliness and trouble be of help. Is it that there is something in the essence of the thing itself, or that it is a medium, a tangible help, in conveying memories of sympathy and comfort? Some time, if it may be, I must examine this matter and try to make up my mind about it. In the meantime I must find out all I can about Count Dracula, as it may help me to understand. Tonight he may talk of himself, if I turn the conversation that way. I must be very careful, however, not to awake his suspicion.
Midnight.--I have had a long talk with the Count. I asked him a few questions on Transylvania history, and he warmed up to the subject wonderfully. In his speaking of things and people, and especially of battles, he spoke as if he had been present at them all.  Whenever he spoke of his house he always said "we", and spoke almost in the plural, like a king speaking. I wish I could put down all he said exactly as he said it, for to me it was most fascinating. It seemed to have in it a whole history of the country. He grew excited as he spoke, and walked about the room pulling his great white moustache and grasping anything on which he laid his hands as though he would crush it by main strength. One thing he said which I shall put down as nearly as I can, for it tells in its way the story of his race.
"We Szekelys have a right to be proud, for in our veins flows the blood of many brave races who fought as the lion fights, for lordship. Here, in the whirlpool of European races, the Ugric tribe bore down from Iceland the fighting spirit which Thor and Wodin gave them, which their Berserkers displayed to such fell intent on the seaboards of Europe, aye, and of Asia and Africa too, till the peoples thought that the werewolves themselves had come. Here, too, when they came, they found the Huns, whose warlike fury had swept the earth like a living flame, till the dying peoples held that in their veins ran the blood of those old witches, who, expelled from Scythia had mated with the devils in the desert. Fools, fools! What devil or what witch was ever so great as Attila, whose blood is in these veins?" He held up his arms. "Is it a wonder that we were a conquering race, that we were proud, that when the Magyar, the Lombard, the Avar, the Bulgar, or the Turk poured his thousands on our frontiers, we drove them back? Is it strange that when Arpad and his legions swept through the Hungarian fatherland he found us here when he reached the frontier, that the Honfoglalas was completed there? And when the Hungarian flood swept eastward, the Szekelys were claimed as kindred by the victorious Magyars, and to us for centuries was trusted the guarding of the frontier of Turkeyland. Aye, and more than that, endless duty of the frontier guard, for as the Turks say, 'water sleeps, and the enemy is sleepless.' Who more gladly than we throughout the Four Nations received the 'bloody sword,' or at its warlike call flocked quicker to the standard of the King? When was redeemed that great shame of my nation, the shame of Cassova, when the flags of the Wallach and the Magyar went down beneath the Crescent? Who was it but one of my own race who as Voivode crossed the Danube and beat the Turk on his own ground? This was a Dracula indeed! Woe was it that his own unworthy brother, when he had fallen, sold his people to the Turk and brought the shame of slavery on them! Was it not this Dracula, indeed, who inspired that other of his race who in a later age again and again brought his forces over the great river into Turkeyland, who, when he was beaten back, came again, and again, though he had to come alone from the bloody field where his troops were being slaughtered, since he knew that he alone could ultimately triumph! They said that he thought only of himself. Bah! What good are peasants without a leader? Where ends the war without a brain and heart to conduct it? Again, when, after the battle of Mohacs, we threw off the Hungarian yoke, we of the Dracula blood were amongst their leaders, for our spirit would not brook that we were not free. Ah, young sir, the Szekelys, and the Dracula as their heart's blood, their brains, and their swords, can boast a record that mushroom growths like the Hapsburgs and the Romanoffs can never reach. The warlike days are over. Blood is too precious a thing in these days of dishonourable peace, and the glories of the great races are as a tale that is told."
It was by this time close on morning, and we went to bed. (Mem., this diary seems horribly like the beginning of the "Arabian Nights," for everything has to break off at cockcrow, or like the ghost of Hamlet's father.)
12 May.--Let me begin with facts, bare, meager facts, verified by books and figures, and of which there can be no doubt. I must not confuse them with experiences which will have to rest on my own observation, or my memory of them. Last evening when the Count came from his room he began by asking me questions on legal matters and on the doing of certain kinds of business. I had spent the day wearily over books, and, simply to keep my mind occupied, went over some of the matters I had been examined in at Lincoln's Inn. There was a certain method in the Count's inquiries, so I shall try to put them down in sequence. The knowledge may somehow or some time be useful to me.
First, he asked if a man in England might have two solicitors or more. I told him he might have a dozen if he wished, but that it would not be wise to have more than one solicitor engaged in one transaction, as only one could act at a time, and that to change would be certain to militate against his interest. He seemed thoroughly to understand, and went on to ask if there would be any practical difficulty in having one man to attend, say, to banking, and another to look after shipping, in case local help were needed in a place far from the home of the banking solicitor. I asked to explain more fully, so that I might not by any chance mislead him, so he said,
"I shall illustrate. Your friend and mine, Mr. Peter Hawkins, from under the shadow of your beautiful cathedral at Exeter, which is far from London, buys for me through your good self my place at London. Good! Now here let me say frankly, lest you should think it strange that I have sought the services of one so far off from London instead of some one resident there, that my motive was that no local interest might be served save my wish only, and as one of London residence might, perhaps, have some purpose of himself or friend to serve, I went thus afield to seek my agent, whose labours should be only to my interest. Now, suppose I, who have much of affairs, wish to ship goods, say, to Newcastle, or Durham, or Harwich, or Dover, might it not be that it could with more ease be done by consigning to one in these ports?"
I answered that certainly it would be most easy, but that we solicitors had a system of agency one for the other, so that local work could be done locally on instruction from any solicitor, so that the client, simply placing himself in the hands of one man, could have his wishes carried out by him without further trouble.
"But," said he, "I could be at liberty to direct myself. Is it not so?"
"Of course," I replied, and "Such is often done by men of business, who do not like the whole of their affairs to be known by any one person."
"Good!" he said, and then went on to ask about the means of making consignments and the forms to be gone through, and of all sorts of difficulties which might arise, but by forethought could be guarded against. I explained all these things to him to the best of my ability, and he certainly left me under the impression that he would have made a wonderful solicitor, for there was nothing that he did not think of or foresee. For a man who was never in the country, and who did not evidently do much in the way of business, his knowledge and acumen were wonderful. When he had satisfied himself on these points of which he had spoken, and I had verified all as well as I could by the books available, he suddenly stood up and said, "Have you written since your first letter to our friend Mr. Peter Hawkins, or to any other?"
It was with some bitterness in my heart that I answered that I had not, that as yet I had not seen any opportunity of sending letters to anybody.
"Then write now, my young friend," he said, laying a heavy hand on my shoulder, "write to our friend and to any other, and say, if it will please you, that you shall stay with me until a month from now."
"Do you wish me to stay so long?" I asked, for my heart grew cold at the thought.
"I desire it much, nay I will take no refusal. When your master, employer, what you will, engaged that someone should come on his behalf, it was understood that my needs only were to be consulted. I have not stinted. Is it not so?"
What could I do but bow acceptance? It was Mr. Hawkins' interest, not mine, and I had to think of him, not myself, and besides, while Count Dracula was speaking, there was that in his eyes and in his bearing which made me remember that I was a prisoner, and that if I wished it I could have no choice. The Count saw his victory in my bow, and his mastery in the trouble of my face, for he began at once to use them, but in his own smooth, resistless way.
"I pray you, my good young friend, that you will not discourse of things other than business in your letters. It will doubtless please your friends to know that you are well, and that you look forward to getting home to them. Is it not so?" As he spoke he handed me three sheets of note paper and three envelopes. They were all of the thinnest foreign post, and looking at them, then at him, and noticing his quiet smile, with the sharp, canine teeth lying over the red underlip, I understood as well as if he had spoken that I should be more careful what I wrote, for he would be able to read it. So I determined to write only formal notes now, but to write fully to Mr. Hawkins in secret, and also to Mina, for to her I could write shorthand, which would puzzle the Count, if he did see it. When I had written my two letters I sat quiet, reading a book whilst the Count wrote several notes, referring as he wrote them to some books on his table. Then he took up my two and placed them with his own, and put by his writing materials, after which, the instant the door had closed behind him, I leaned over and looked at the letters, which were face down on the table. I felt no compunction in doing so for under the circumstances I felt that I should protect myself in every way I could.
One of the letters was directed to Samuel F. Billington, No. 7, The Crescent, Whitby, another to Herr Leutner, Varna. The third was to Coutts & Co., London, and the fourth to Herren Klopstock & Billreuth, bankers, Buda Pesth. The second and fourth were unsealed. I was just about to look at them when I saw the door handle move. I sank back in my seat, having just had time to resume my book before the Count, holding still another letter in his hand, entered the room. He took up the letters on the table and stamped them carefully, and then turning to me, said,
"I trust you will forgive me, but I have much work to do in private this evening. You will, I hope, find all things as you wish." At the door he turned, and after a moment's pause said, "Let me advise you, my dear young friend. Nay, let me warn you with all seriousness, that should you leave these rooms you will not by any chance go to sleep in any other part of the castle. It is old, and has many memories, and there are bad dreams for those who sleep unwisely. Be warned! Should sleep now or ever overcome you, or be like to do, then haste to your own chamber or to these rooms, for your rest will then be safe. But if you be not careful in this respect, then," He finished his speech in a gruesome way, for he motioned with his hands as if he were washing them. I quite understood. My only doubt was as to whether any dream could be more terrible than the unnatural, horrible net of gloom and mystery which seemed closing around me.
Later.--I endorse the last words written, but this time there is no doubt in question. I shall not fear to sleep in any place where he is not. I have placed the crucifix over the head of my bed, I imagine that my rest is thus freer from dreams, and there it shall remain.
When he left me I went to my room. After a little while, not hearing any sound, I came out and went up the stone stair to where I could look out towards the South. There was some sense of freedom in the vast expanse, inaccessible though it was to me, as compared with the narrow darkness of the courtyard. Looking out on this, I felt that I was indeed in prison, and I seemed to want a breath of fresh air, though it were of the night. I am beginning to feel this nocturnal existence tell on me. It is destroying my nerve.  God knows that there is ground for my terrible fear in this accursed place! I looked out over the beautiful expanse, bathed in soft yellow moonlight till it was almost as light as day. In the soft light the distant hills became melted, and the shadows in the valleys and gorges of velvety blackness. The mere beauty seemed to cheer me. There was peace and comfort in every breath I drew. As I leaned from the window my eye was caught by something moving a storey below me, and somewhat to my left, where I imagined, from the order of the rooms, that the windows of the Count's own room would look out. The window at which I stood was tall and deep, stone-mullioned, and though weatherworn, was still complete. But it was evidently many a day since the case had been there. I drew back behind the stonework, and looked carefully out.
What I saw was the Count's head coming out from the window. I did not see the face, but I knew the man by the neck and the movement of his back and arms. In any case I could not mistake the hands which I had had some many opportunities of studying. I was at first interested and somewhat amused, for it is wonderful how small a matter will interest and amuse a man when he is a prisoner. But my very feelings changed to repulsion and terror when I saw the whole man slowly emerge from the window and begin to crawl down the castle wall over the dreadful abyss, face down with his cloak spreading out around him like great wings. At first I could not believe my eyes. I thought it was some trick of the moonlight, some weird effect of shadow, but I kept looking, and it could be no delusion. I saw the fingers and toes grasp the corners of the stones, worn clear of the mortar by the stress of years, and by thus using every projection and inequality move downwards with considerable speed, just as a lizard moves along a wall.
What manner of man is this, or what manner of creature, is it in the semblance of man? I feel the dread of this horrible place overpowering me. I am in fear, in awful fear, and there is no escape for me. I am encompassed about with terrors that I dare not think of.
15 May.--Once more I have seen the count go out in his lizard fashion. He moved downwards in a sidelong way, some hundred feet down, and a good deal to the left. He vanished into some hole or window. When his head had disappeared, I leaned out to try and see more, but without avail. The distance was too great to allow a proper angle of sight. I knew he had left the castle now, and thought to use the opportunity to explore more than I had dared to do as yet. I went back to the room, and taking a lamp, tried all the doors. They were all locked, as I had expected, and the locks were comparatively new. But I went down the stone stairs to the hall where I had entered originally. I found I could pull back the bolts easily enough and unhook the great chains. But the door was locked, and the key was gone! That key must be in the Count's room. I must watch should his door be unlocked, so that I may get it and escape. I went on to make a thorough examination of the various stairs and passages, and to try the doors that opened from them. One or two small rooms near the hall were open, but there was nothing to see in them except old furniture, dusty with age and moth-eaten. At last, however, I found one door at the top of the stairway which, though it seemed locked, gave a little under pressure. I tried it harder, and found that it was not really locked, but that the resistance came from the fact that the hinges had fallen somewhat, and the heavy door rested on the floor. Here was an opportunity which I might not have again, so I exerted myself, and with many efforts forced it back so that I could enter. I was now in a wing of the castle further to the right than the rooms I knew and a storey lower down. From the windows I could see that the suite of rooms lay along to the south of the castle, the windows of the end room looking out both west and south. On the latter side, as well as to the former, there was a great precipice. The castle was built on the corner of a great rock, so that on three sides it was quite impregnable, and great windows were placed here where sling, or bow, or culverin could not reach, and consequently light and comfort, impossible to a position which had to be guarded, were secured. To the west was a great valley, and then, rising far away, great jagged mountain fastnesses, rising peak on peak, the sheer rock studded with mountain ash and thorn, whose roots clung in cracks and crevices and crannies of the stone. This was evidently the portion of the castle occupied by the ladies in bygone days, for the furniture had more an air of comfort than any I had seen.
The windows were curtainless, and the yellow moonlight, flooding in through the diamond panes, enabled one to see even colours, whilst it softened the wealth of dust which lay over all and disguised in some measure the ravages of time and moth. My lamp seemed to be of little effect in the brilliant moonlight, but I was glad to have it with me, for there was a dread loneliness in the place which chilled my heart and made my nerves tremble. Still, it was better than living alone in the rooms which I had come to hate from the presence of the Count, and after trying a little to school my nerves, I found a soft quietude come over me. Here I am, sitting at a little oak table where in old times possibly some fair lady sat to pen, with much thought and many blushes, her ill-spelt love letter, and writing in my diary in shorthand all that has happened since I closed it last. It is the nineteenth century up-to-date with a vengeance. And yet, unless my senses deceive me, the old centuries had, and have, powers of their own which mere "modernity" cannot kill.
Later: The morning of 16 May.--God preserve my sanity, for to this I am reduced. Safety and the assurance of safety are things of the past. Whilst I live on here there is but one thing to hope for, that I may not go mad, if, indeed, I be not mad already. If I be sane, then surely it is maddening to think that of all the foul things that lurk in this hateful place the Count is the least dreadful to me, that to him alone I can look for safety, even though this be only whilst I can serve his purpose. Great God! Merciful God, let me be calm, for out of that way lies madness indeed. I begin to get new lights on certain things which have puzzled me. Up to now I never quite knew what Shakespeare meant when he made Hamlet say, "My tablets! Quick, my tablets! 'tis meet that I put it down," etc., For now, feeling as though my own brain were unhinged or as if the shock had come which must end in its undoing, I turn to my diary for repose. The habit of entering accurately must help to soothe me.
The Count's mysterious warning frightened me at the time. It frightens me more not when I think of it, for in the future he has a fearful hold upon me. I shall fear to doubt what he may say!
When I had written in my diary and had fortunately replaced the book and pen in my pocket I felt sleepy. The Count's warning came into my mind, but I took pleasure in disobeying it. The sense of sleep was upon me, and with it the obstinacy which sleep brings as outrider. The soft moonlight soothed, and the wide expanse without gave a sense of freedom which refreshed me. I determined not to return tonight to the gloom-haunted rooms, but to sleep here, where, of old, ladies had sat and sung and lived sweet lives whilst their gentle breasts were sad for their menfolk away in the midst of remorseless wars. I drew a great couch out of its place near the corner, so that as I lay, I could look at the lovely view to east and south, and unthinking of and uncaring for the dust, composed myself for sleep. I suppose I must have fallen asleep. I hope so, but I fear, for all that followed was startlingly real, so real that now sitting here in the broad, full sunlight of the morning, I cannot in the least believe that it was all sleep.
I was not alone. The room was the same, unchanged in any way since I came into it. I could see along the floor, in the brilliant moonlight, my own footsteps marked where I had disturbed the long accumulation of dust. In the moonlight opposite me were three young women, ladies by their dress and manner. I thought at the time that I must be dreaming when I saw them, they threw no shadow on the floor. They came close to me, and looked at me for some time, and then whispered together. Two were dark, and had high aquiline noses, like the Count, and great dark, piercing eyes, that seemed to be almost red when contrasted with the pale yellow moon. The other was fair, as fair as can be, with great masses of golden hair and eyes like pale sapphires. I seemed somehow to know her face, and to know it in connection with some dreamy fear, but I could not recollect at the moment how or where. All three had brilliant white teeth that shone like pearls against the ruby of their voluptuous lips. There was something about them that made me uneasy, some longing and at the same time some deadly fear. I felt in my heart a wicked, burning desire that they would kiss me with those red lips. It is not good to note this down, lest some day it should meet Mina's eyes and cause her pain, but it is the truth. They whispered together, and then they all three laughed, such a silvery, musical laugh, but as hard as though the sound never could have come through the softness of human lips. It was like the intolerable, tingling sweetness of waterglasses when played on by a cunning hand. The fair girl shook her head coquettishly, and the other two urged her on.
One said, "Go on! You are first, and we shall follow. Yours is the right to begin."
The other added, "He is young and strong. There are kisses for us all."
I lay quiet, looking out from under my eyelashes in an agony of delightful anticipation. The fair girl advanced and bent over me till I could feel the movement of her breath upon me. Sweet it was in one sense, honey-sweet, and sent the same tingling through the nerves as her voice, but with a bitter underlying the sweet, a bitter offensiveness, as one smells in blood.
I was afraid to raise my eyelids, but looked out and saw perfectly under the lashes. The girl went on her knees, and bent over me, simply gloating. There was a deliberate voluptuousness which was both thrilling and repulsive, and as she arched her neck she actually licked her lips like an animal, till I could see in the moonlight the moisture shining on the scarlet lips and on the red tongue as it lapped the white sharp teeth. Lower and lower went her head as the lips went below the range of my mouth and chin and seemed to fasten on my throat. Then she paused, and I could hear the churning sound of her tongue as it licked her teeth and lips, and I could feel the hot breath on my neck. Then the skin of my throat began to tingle as one's flesh does when the hand that is to tickle it approaches nearer, nearer. I could feel the soft, shivering touch of the lips on the super sensitive skin of my throat, and the hard dents of two sharp teeth, just touching and pausing there. I closed my eyes in languorous ecstasy and waited, waited with beating heart.
But at that instant, another sensation swept through me as quick as lightning. I was conscious of the presence of the Count, and of his being as if lapped in a storm of fury. As my eyes opened involuntarily I saw his strong hand grasp the slender neck of the fair woman and with giant's power draw it back, the blue eyes transformed with fury, the white teeth champing with rage, and the fair cheeks blazing red with passion. But the Count! Never did I imagine such wrath and fury, even to the demons of the pit. His eyes were positively blazing. The red light in them was lurid, as if the flames of hell fire blazed behind them. His face was deathly pale, and the lines of it were hard like drawn wires. The thick eyebrows that met over the nose now seemed like a heaving bar of white-hot metal. With a fierce sweep of his arm, he hurled the woman from him, and then motioned to the others, as though he were beating them back. It was the same imperious gesture that I had seen used to the wolves. In a voice which, though low and almost in a whisper seemed to cut through the air and then ring in the room he said,
"How dare you touch him, any of you?  Back, I tell you all! This man belongs to me! Beware how you meddle with him, or you'll have to deal with me."
The fair girl, with a laugh of ribald coquetry, turned to answer him. "You yourself never loved. You never love!" On this the other women joined, and such a mirthless, hard, soulless laughter rang through the room that it almost made me faint to hear. It seemed like the pleasure of fiends.
Then the Count turned, after looking at my face attentively, and said in a soft whisper, "Yes, I too can love. You yourselves can tell it from the past. Is it not so?  Now go! Go! I must awaken him, for there is work to be done."
"Are we to have nothing tonight?" said one of them, with a low laugh, as she pointed to the bag which he had thrown upon the floor, and which moved as though there were some living thing within it. For answer he nodded his head. One of the women jumped forward and opened it. If my ears did not deceive me there was a gasp and a low wail, as of a half smothered child. The women closed round, whilst I was aghast with horror. But as I looked, they disappeared, and with them the dreadful bag. There was no door near them, and they could not have passed me without my noticing. They simply seemed to fade into the rays of the moonlight and pass out through the window, for I could see outside the dim, shadowy forms for a moment before they entirely faded away.
Then the horror overcame me, and I sank down unconscious.


| 035:006 Khan | : |
Surely, Shaitan (Satan) is an enemy to you, so take (treat) him as an enemy. He only invites his Hizb (followers) that they may become the dwellers of the blazing Fire. |
| 035:006 Maulana | : |
Surely the devil is your enemy, so take him for an enemy. He only invites his party to be companions of the burning Fire. |
| 035:006 Pickthal | : |
Lo! the devil is an enemy for you, so treat him as an enemy. He only summoneth his faction to be owners of the flaming Fire. |
| 035:006 Rashad | : |
The devil is your enemy, so treat him as an enemy. He only invites his party to be the dwellers of Hell. |
| 035:006 Sarwar | : |
Satan is your enemy. Thus, consider him as your enemy. His party only calls you to make you the dwellers of the burning fire. |
| 035:006 Shakir | : |
Surely the Shaitan is your enemy, so take him for an enemy; he only invites his party that they may be inmates of the burning |
| 035:006 Sherali | : |
Surely, Satan is an enemy to you; so treat him as an enemy. He calls his followers only that they may become the inmates of the burning Fire. |
| 035:006 Yusufali | : |
Verily Satan is an enemy to you: so treat him as an enemy. He only invites his adherents, that they may become Companions of the Blazing Fire. |
Concepts/Themes Covered: الإيمان > الغيب > الشيطان > سلوكه الشيطاني Faith> The Unseen World> Satan, the Devil> His Devilish Conduct الإيمان > الغيب > الشيطان > وسوسته Faith> The Unseen World> Satan, the Devil> Satanic Temptations الإيمان > الغيب > النار > أسماء النار > السعير Faith> The Unseen World> Hell-Fire>Hell Names> The Blaze
This tool uses eight English parallel translations for the Holy Quran imported from Mr. Clay Smith. You can also visit Qurany Concepts for browsing the Quran themes or topics. If you want to search the Holy Quran for keywords, please visit Qurany Keywords.


{% extends 'registration/registration_base.html' %} {% load humanize %} {% load widget_tweaks %} {% load firecares_tags %} {% block meta_title %}Registration Check · FireCARES{% endblock %} {% block meta_description %} Create an account on FireCARES to learn how fire department resources are deployed to match your community risks. {% endblock %} {% block content %}
Though anyone may request and receive an account on FireCARES to view publicly available information, only IAFC members, IAFF Affiliate Officers and/or designated Fire Service Leaders may receive login to the full system.
IAFF Local Officers should login to FireCARES using IMIS and IAFC Members should use the Helix single-sign-on service.
In addition to these active fire service groups, specific fire service industry email address domains allow for automatic registration. If your email address does not receive immediate login, you should contact your local Fire Department Chief to request an account.


{{meta.title}}
{{/meta.title}}This documentation is always evolving. If you've not been here for a while, perhaps check out it out again carefully.
{{{content}}}
This documentation is always evolving. If you've not been here for a while, perhaps check out it out again carefully.


One, Two, Heart You!
Good tunes and good times in Downtown Peekskill!
12heartU is a non-profit, community focused music celebration.
- Date: October 9, 2021, 12-10pm
- Location: Esther St, Peekskill, NY
OUTDOORS and FREE!
Cutie - 9:00pm
Peekskill
Least Best Beast - 8:00pm
Peekskill
Chris Brokaw Band - 7:00pm
Cambridge - Members of Lemonheads, Come, Codeine
Risk/Reward - 6:00pm
Queens - Members of Live From The Barrage
Work Shirt - 5:00pm
Louisville - Members of Waxeater, Parlour
Tiny Blue Ghost - 4:00pm
Kingston
Joy on Fire - 3:00pm
Princeton
All My Friends - 2:00pm
Ossining
Blue Chips - 1:00pm
Peekskill
Messica Arson - 12:00pm
Brooklyn
Sponsors
While you're at it, be sure to check out generous sponsors!
- Peekskill Business Improvement Board
- Mid-Hudson Valley Federal Credit Union
- Speakeasy Tattoo
- Bucko!
- Joe Thompson, Architect
- Division Street Guitars
- Internet Marketing Ninjas
- Matt Demello, friend of 12heartU
- Landmark Consultants
- River Towns Realty
- Charles Newman Insurance
- The Rift
- White Plains Linen
- Jim Dillon, friend of 12heartU
- Vivian Mckenzie, friend of 12heartU


Directions
In a large bowl, dissolve yeast in warm water. Add the sugar, salt, oil and 3 cups flour. Beat until smooth. Stir in enough remaining flour, 1/2 cup at a time, to form a soft dough. Turn onto a floured surface; knead until smooth and elastic, about 8-10 minutes. Place in a greased bowl, turning once to grease the top. Cover and let rise in a warm place until doubled, about 1-1/2 hours. Punch dough down. Turn onto a lightly floured surface; divide dough in half. Shape each into a loaf. Place in two greased 9x5-in. loaf pans. Cover and let rise until doubled, about 30-45 minutes. Bake at 375° for 30-35 minutes or until golden brown and bread sounds hollow when tapped. Remove from pans to wire racks to cool. Yield: 2 loaves (16 slices each).


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Jordan's Lab 1
Beginning with the basics:
The basics:
List:
Here is a list of three things I'm excited to learn in this class:
- How to deploy web applications
- How to write better CSS
- A more in depth understanding of Javascript
And here's a list of my five favorite albums in order:
- Channel Orange by Frank Ocean
- Coloring Book by Chance the Rapper
- The Life of Pablo by Kanye West
- The Black Parade by My Chemical Romance
- Mura Masa by Mura Masa
Time for Inline Elements (Grandma's Beware):
Let's eat, Grandma.
Let's eat, Grandma.
Let's eat Grandma.
Lastly, here are some empty elements:
A soft
line break.
And a hard
one.


SoCal Fall 2013: Program
Click on a talk title to download slides!Breakfast (9:30 AM - 10:00 AM)
Session I: Analysis of Dynamic Languages (10:00 AM - 10:45 AM)
Deoptimization for Dynamic Language JITs on Typed, Stack-based Virtual Machines
Madhukar Kedlaya (UCSB)ZipPy: A Simple Python 3 for the JVM
Wei Zhang (UCI)Type Refinement for Static Analysis of JavaScript
John Sarracino (HMC)
Break (10:45 AM - 11:15 AM)
Session II: Languages (11:15 AM - 12:00 PM)
Engineering Hygienic Macros in Rust
John Clements (Cal Poly SLO)GoFFish: A Sub-Graph Centric Framework for Large-Scale Graph Analytics
Charith Wickramaarachchi (USC)Object-Oriented Design by Contract with Declarative Bounded Exhaustive Testing in Python
Chris Coakley (UCSB)
Lunch (12:00 PM - 1:00 PM)
Session III: Analysis and Verification (1:00 PM - 1:45 PM)
Checking Path Consistency and Reachability in Multipath Networks using Batfish
Ari Fogel (UCLA)Property-Guided Shape Analysis
Tomer Weiss (UCLA)Data-Driven Equivalence Checking
Rahul Sharma (Stanford)
Break (1:45 PM - 2:15 PM)
Session IV: JavaScript (2:15 PM - 3:00 PM)
Visualizing Information Leaks in JavaScript Browser Add-Ons
Tom Ashmore (HMC)Visualizing the Graphical Execution of Programs for JavaScript Abstract Interpretation
Jane Hoffswell (HMC)A Parallel Abstract Interpreter for JavaScript
Kyle Dewey (UCSB)
Break (3:00 PM - 3:30 PM)
Session V: Potpourri (3:30 PM - 4:15 PM)
Relevant Inputs Analysis and its Applications
Yan Wang (UCR)Booby Trapping Software
Stephen Crane (UCI)Recovering Debug Information from Randomized Code Movement
Steven Neisius (UCI)


--- layout: post title: "My Week in Review" date: 2017-01-29 05:05:00 +0000 tags: image: https://s3.amazonaws.com/audreywatters/2017-01-29-badlands.jpg imagecredits: https://twitter.com/AltNatParkSer ---
Icon credits: The Noun Project


Marty was born on June 17th, 1963 in East Liverpool, Ohio, the oldest boy and the second child of six born to Carl and Anna Mae Covert.
As a child, Marty enjoyed being his mom's 'little man' and often took on a protective role in his family.
He spent his summers cutting the neighbors' grass and his winters shoveling snow to earn pocket money which he would spend on snacks and treats for he and his siblings.
In highschool he played football, but he was not only an athlete, also a celebrated thespian; he won an 'Oscar' his senior year of highschool for his role as Jeff Douglass in the East Liverpool High School production of Brigadoon.
While in highschool, he met Patti Durbin, a classmate two years behind him in school. They would go on to marry on March 19th, 1982, and have four children: Joshua, Valarie Mae, Jacob, and Julie Anne.
In keeping with his younger years, Marty continued to take on the role of provider. Early in their marriage, Marty supported Patti while she finished her final year of high school by working three jobs: as a security guard at Parson's Coal and Labelle Terrace,
performing many duties at a convenience store, and loading and unloading barges on the Ohio river.
After Patti graduated from high school, the couple moved to Corpus Christi, Texas where Marty worked in construction on the Hershey Hotel. Both would later take jobs at the hotel; Marty worked as a bell-hop and Patti worked as room service staff.
In 1985 the couple learned they were expecting Valarie. Marty decided to enlist in the U.S. Air Force to provide a more stable income for his growing family, and Patti moved back to East Liverpool.
Jacob came along a few years later, when the couple were living in Phoenix, Arizona. After four years in the Air Force, the couple moved back to Ohio, in Sandusky, where Marty began working at Ohio Bell, which would later become Ameritech, and then AT&T.
When an opening with Ohio Bell was available in East Liverpool, the couple finally moved home to stay.
Over the next several years, Marty led a relatively normal, midwestern life. He went to work everyday, bought and remodeled a home for his family, coached peewee football for Jacob's team, and attended band concerts and football games in which Valarie performed. He even made time to take the occasional family vacation to Corpus Christi to visit old friends.
In 2000, Julie Anne made her debut. She was the apple of Marty's eye, and the two were, and continue to be, practically insperable.
Sadly, in 2014, Marty and Patti separated and were divorced in 2016. Marty continues to be the bedrock of his family; He has helped Valarie move countless times and walked her down the aisle when she married in 2016, has helped Jacob through his own
marital troubles, and continues to raise Julie Anne on his own. He is beloved by family and many friends far and wide.
In 2017, he and Julie Anne moved into a new home Marty purchased, and has become quite the host of several social gatherings. He enjoys visits from his older kids and his "grand-dogs" fairly regularly. He still works for AT&T, and enjoys spending his
time off taking care of his property and pool, attending church on Sundays, watching Steelers and Penguins games.
He may seem just like a regular guy, but Marty Covert has lived a life filled with the love of his family and friends, the respect of his colleagues, and has always tried to model being the best man he can be even in the midst of trying times, emotionally,
physically, and financially. He truly is a living legend, one that I continue to admire every day.
If you know Marty Covert, or have known him in the past and would like to reconnect with him, you can find him on Facebook.


Home
Biography
Schedule
Contact
My Schedule
My Lectures Schedule
Period 1
Period 2
Period 3
Period 4
Period 5
Period 6
Period 7
Period 8
Monday
System Integration & E-Business
Free
Thesday
Financial Accounting & System Development
Web Programming 1
Free
Wednesday
International Accounting
FREE
Project Foundations
Thursday
FREE
Leadership Theory
Free
Friday
HOLIDAY
Saturday
HOLIDAY
Sunday
HOLIDAY
There are two places where I have lectures.
1. Hyakumanben Campus
2. Kyoto Ekimae


A developer with no professional Experience😥.
I'm avid learner, and willing to learn and implement what I've learnt.
I'm somewhat comfortable in using ⬇
😖Currently struggling to learn ⬇
Interior consultant landing page built as per the design provided by devchallenges


Does your invoice get larger every month?
We help you keep
your costs down by making sure you are not overdimensioned, proper scheduling and by using the right tools.
The cloud makes it easier than ever to build infrastructure, which makes it more important than ever to have a blueprint. We can help you set up and run a secure architecture.
Our software tools make managing your Azure environment a breeze.
Currently only offered to consultancy customers.


User history test
Clear the cache & cookies and open some mainstream websites
You need close the private mode window.
And during this test, you don't need to open the private mode window again.
Open another empty window and clear the broswer cache & cookies.
How to clear the broswer cache & cookies?
You can open this link as a new window to know how to clear the broswer cache & cookies.


Instructor: Baishakhi Ray (Rice 505)
Class Schedule : Tuesday and Thursday 9:30 AM - 10:45 AM at Olsson Hall 011
Office Hours: Tuesday 11 am - 12 pm or by appointment
Teaching Assistant: Chong Tang (ctang at virginia dot edu)
TA Office Hours: Thursday 11 am - 12 pm at Rice 019
Writing robust, bug-free software is hard, if not impossible. Incorrect code leads to software bugs that often cost companies billions of dollars every year. In this course, we will learn how to ensure program correctness, using a diverse set of static and dynamic program analysis techniques. Some of the specific analysis techniques to be studied are program parsing, control and data dependency analysis, symbolic evaluation, constraints, invariants, program slicing, and code change analysis. As applications to these techniques, we will learn how to automatically detect bugs, and debug and fix the buggy programs.
You should be generally comfortable to deal with a complex large source code (> 1000 lines of code). The class would be especially relevant to the students who have already taken Programming Language class (CS 4610/4501, CS 6610).
| Date | Topic | Lecture Slides/Reading | |
| 01.17.2018 | Introduction | intro.pptx | |
| 01.23.2018 | Parsing (Parse Tree, AST) |
ast.pptx | |
| 01.23.2018 | Home Work 1 (due on 4th February) | hw1.pdf | |
| 01.26.2018 | Control Flow Analsis | control_flow.pptx | |
| 02.01.2018 | Data Flow Analysis | data_flow.pptx | |
| 02.13.2018 | Program Slicing | slicing.pptx Additional Reading: Static-Slicing.pdf, Dynamic-Slicing.pdf | |
| 02.13.2018 | Home Work 2 (due on 25th February) | hw2 | |
| 02.15.2018 | Symbolic Execution | symbolic_execution.pptx, KLEE | |
| 02.13.2018 | Home Work 3 (due on 23rd March) | hw3 | |
| 03.13.2018 | Introduction to Testing | testing.pptx | |
| 03.15.2018 | Fuzzing | Fuzzing.pptx | |
| Presentation Topics | |||
| 03.(20/22).2018 | Performance Bugs | 1.
Understanding and Detecting Real-World Performance Bugs
presenter: Downing, Jared |
|
| 2.
Characterizing and Detecting Performance Bugs for Smartphone Applications presenter: Maimon, Laura |
|||
| 3.
Toddler: Detecting Performance Problems via Similar
Memory-Access Patterns presenter: Roy, Joshua |
|||
| 03.27.2018 | Discussions on midterm | ||
| 03.29.2018 | Midterm | ||
| 04.03.2018 | No Class | ||
| 04.(05/10).2018 | Concurrency Bug | ||
| 04.(12/17).2018 | |||
| 04.(20/24).2018 | |||
| 04.26.2018 |
The learning from this class might be used for research purposes. For example, we might develop new technique to find new kind of security bugs. Inerestested students who are willing to pursue undergraduate research should make an appointment to talk about it. I am happy to discuss independent study projects, capstone projects, and graduate school.


Buttons are used primarily on action items. Some examples include Add, Save, Delete, Sign up. Do not use Buttons as navigational elements. Instead, use Links because it takes the user to a new page and is not associated with an action. Each page may have one to two primary buttons. Any remaining calls-to-action are represented as secondary buttons.
Buttons express what action will occur when the user clicks or touches it. Buttons are used to initialize an action, either in the background or foreground of an experience.

Default Buttons
 <button type="button" class="em-ds-button em-ds-button-default">Default</button>
Primary Buttons
 <button type="button" class="em-ds-button em-ds-button-primary">Primary</button>
Tertiary Buttons
 <button type="button" class="em-ds-button em-ds-button-tertiary">Tertiary</button>
Different Size Buttons

 <button type="button" class="em-ds-button em-ds-button-primary em-ds-button-xs">Extra Small</button> <button type="button" class="em-ds-button em-ds-button-primary em-ds-button-xm">Small</button> <button type="button" class="em-ds-button em-ds-button-primary em-ds-button-md">Medium</button> <button type="button" class="em-ds-button em-ds-button-primary em-ds-button-lg">Large</button>

| Class | HEX | Description |
|---|---|---|
.em-ds-button
|
- | This is basic class for button. All button must have this class |
.em-ds-button-default
|
- | Class for default button |
.em-ds-button-primary
|
#2080CD | Class for primary button |
.em-ds-button-tertiary
|
- | Class for tertiary button |
:hover
|
#1394E5 | For hovered button |
:active
|
#006AA9 | For active button |
:disabled
|
#A9B1BE | For disabled button |
.em-ds-button-xs
|
- | Class for extra small button |
.em-ds-button-xm
|
- | Class for small button |
.em-ds-button-md
|
- | Class for medium button |
.em-ds-button-lg
|
- | Class for large button |


Safari support! - Better Battlelog Forums #1555
Sitemap
20. March 2012 10:14
Topicstarter
Guest
If you could add support for Safari users it would be very much appreciated.
20. March 2012 10:16
BrainFooLong
Administrator
Sorry, no plan to support other browsers, currently.
Greetz


Simple example of using Lambdas. Most programmers will want to work with Query Expressions. However, Lambdas can be useful in some circumstances, and this sample provides a quick introduction to the subject.
There are 11 samples in this project. By default you will run the first sample. If you edit the Main() method in Program.cs you can modify the code to run one of the other 10 samples. For instance, by default, main calls:
Samples.Sample1();
Modify this code to call Sample2():
Samples.Sample2();
The samples are named Sample1(), Sample2(), etc, up to Sample10(). Accompanying Sample9() there is also a method called Sample9a().


Christian Stanfield
Full-Stack
Developer
Independent
Filmmaker
I’m a web developer and independent film producer with a passion for projects that change the way we view the world.
My background in creative roles, management and several years of running my own business.
I’ve built apps in Ruby on Rails and Javascript. I’ve dabbled in WebSockets and Arduino, and recently built a robot.
Projects:


The real handler type to be used for the asynchronous operation.
typedef asio::handler_type< Handler, Signature >::type handler_type;
|
Name |
Description |
|---|---|
|
The handler type for the specific signature. |
The handler_type
traits class is used for determining the concrete handler type to be used
for an asynchronous operation. It allows the handler type to be determined
at the point where the specific completion handler signature is known.
This template may be specialised for user-defined completion token types.
Header: asio/async_result.hpp
Convenience header: asio.hpp


fun generateLogFunction(tag: String): (Any?) -> Int
This generates function serving as an alternative to Log.d.
tag
- The first argument for the log function.
Return
Log function if RELEASE is set to false. Otherwise it returns dummy function.
fun generateLogFunction(companion: Any): (Any?) -> Int
This generates function serving as an alternative to Log.d.
companion
- Companion object for generating tag, which will be used as the first
argument for log function
Return
Log function if RELEASE is set to false. Otherwise it returns dummy function.


|
|||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
A callback object for registering with an AcknowledgmentSource
server context element to handle the
receipt of an acknowledgment that the remote call's result data
has been processed by the client.
| Method Summary | |
void |
acknowledgmentReceived(boolean received)
Handles either receipt of an acknowledgment that the remote call's result data has been processed by the client or an indication that no acknowledgment will be received. |
| Method Detail |
public void acknowledgmentReceived(boolean received)
If received
is true
, then a
positive acknowledgment has been received that the remote
call's result data has been processed by the client.
If received
is false
, then the
implementation of this interface has determined that no
positive acknowledgment for the associated data will be
received (perhaps due, for example, to connection failure
or timeout).
received
- true
if an acknowledgment was
received, and false
if no acknowledgment will
be received
|
|||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |


I am self taught programmer, I love building stuff, travelling new places, meeting new people, developing new Skills and solving problems using Technology.
Created a COVID-19 app, which is useful to monitor, track COVID-19 cases and to get news updates about COVID-19, also the app has some useful features which help people to clear their doubts, common myths and to stay safe and healthy.
MGM college Android App.In this app students will get Notifications from college faculties.also they can download new syllabus, notes ,university exam papers,New timetable & university result.
I have a YouTube channel named "Programming In Android" where i daily uploads awesome android tutorials.
CGPA: 9.24
Percentage: 84.88%
Percentage: 77.00%
Apart from being developer, I enjoy most of my time being outdoors. I enjoy having dinner with my friends.
When forced indoors, I follow a number of sci-fi movies and television shows, I spend a large amount of my free time exploring the latest technology advancements in the software development.I really like to try new softwares.


This program will utilize Java Swing and AWT components to then allow the user to put in values for formulas and use threads to read JSON files online for some derivatives. Some features will be the ability to utilize a large amount of equations and solve most derivatives. I would have liked to implement a fully capable derivative solver and an integral solver. This program will use Java and read from JSON files that will be on Microsoft Azure. I will be showing the WindowListener and threads reading JSON files. I am not sure what I will be implementing past our class at the moment.


Unconventional holiday gifts your employees will love
From a helicopter flight and vegan cooking class to wine blending and whale watching, Airbnb Experiences offer a host of exciting gift options for employees.
by Content suppliedPicture: iStock
This festive season consider taking a step back and thinking outside the proverbial gift box.
What would make a real impact to your employees’ lives (aside from a bonus, of course!)?
Here are a few ‘unconventional’ ideas for ways to gift something a little more special this year, from the world’s first on-demand accident cover to a float pod and penguin paddle-board experience.
The gift of zen
Float Zero.
Burnout is a thing, especially as the holidays approach. Reward your team for their hard work with one of these ways to relax:
• Float Zero: There’s nothing like a float pod to reboot. It’s a womb-like wonder that has all sorts of benefits for the body and mind.
• Kinesiology: Another slightly less conventional gift, a kinesiology session is a lovely way to stimulate gentle healing by bringing all systems in the body into balance.
• Get mindful: What about a mindfulness or meditation course? Or maybe a yoga retreat somewhere pretty?
• Feel the foot power: A reflexology session could be just the ticket for your tired team.
The gift of protection
One of the best things you can do for your employees is make them feel protected and secure.
Everyone knows South Africa’s roads are risky. And overseas travel also comes with concerns. What if a staff member gets injured in action?
To provide peace of mind, consider investing in the world’s first on-demand accidental injury and death cover for your team.
 You can take out insurance for your staff for the holidays, or at any time, in five minutes flat.
How it works:
Get up to R1 million (for yourself; up to R300,000 for someone else) in cover from just R12 a day to as little as R2.20. Cover includes insurance against over 30 different accidental injuries and death, wherever someone is in the world.
There’s no paperwork and no long-term contract. Simply download the app, add people you want to cover, choose the period you want cover for and confirm the amount of cover required.
It’s super simple and an incredible way to gift your team a happy, worry-free festive season with their families.
The gift of an experience
From a helicopter flight and vegan cooking class to wine blending and whale watching, Airbnb Experiences offer a host of exciting gift options for employees.
There really is something for everyone, so you could even personalise the experience to the employee.
Have someone who has a passion for adventure and birdlife? What about a paddle with penguins? Have another stellar staff member who loves the finer things in life? A secret feast could be just the ticket.


jQuery FAQs
What is jQuery?
Why is jQuery becoming so popular?
Which is harder to learn: jQuery or JavaScript?
Review jQuery UI easings in a new tab or window


Cascade - Encryption and signing library for x-brid encryption via several cryptographic suites.
WARNING: At this time this solution should be considered suitable for research and experimentation, further code and security review is needed before utilization in a production application.
Introduction and Overview
Considering existing cryptographic libraries and native APIs for JavaScript, as far as we know, fundamental implementations of primitives have been developed separately in multiple environments such as Node.js and various browsers. In order to fill gaps among those different environments, there exist several nice universal cryptographic suites that flawlessly work in most of modern JavaScript environments. Here we have defined 'suites' as ones providing encryption, singing and other supplemental functions like OpenPGP library.
However, they are still too primitive to realize a bit more modern cryptographic services in JavaScript. In other words, we see that simple encryption and signing provided by those primitives are insufficient to directly satisfy more complex demands, e.g., revocation of decryption rights after encryption of data. Considering such situation, the aim of this project called Cascade
is to provide a flexible cryptographic application library in JavaScript that realizes the x-brid encryption and signing by utilizing multiple cryptographic suites. This enables us to, for instance, realize complex structures of access rights to encrypted data, e.g., revocation after encryption as mentioned above.
X-brid Encryption
Here we shall explain the detailed mechanism of x-brid encryption by illustrating the simplest example instance of hybrid encryption, i.e., x = 2
, which is a well-known cryptosystem in the current security technology. The following is a schematic block diagram of the hybrid encryption.
As we see, this hybrid procedure consists of two steps where the step 1 encrypts the given plaintext message under (one-time) session key in a certain symmetric key encryption, and the step 2 encrypts the previously-used session key under a given public key(s) as a plaintext in a public key encryption. Although this looks somewhat redundant and waste of computing resource, it has a great advantage in terms of storage usage in the case where we have multiple receivers, i.e., multiple public keys. Namely, the encrypted message body that is likely big would be common and recycled to all the receivers, and only encrypted session key that should be small is 'personalized' to each receivers.
Moreover, this cryptosystem could yield another merit, which is the revocation after encryption of data. Assume that we first provide receivers the encrypted message body, and recall that at this point, no one can decrypt it. This implies that you can provide 'personalized' encrypted session keys to only authorized person later and freely discard the encrypted session keys, i.e., granting and revoking decryption rights and access rights to the data. We may know that this is a very basic and fundamental concept of encryption-based access control that is likely to be a part of well-known digital rights management (DRM).
Cascade
project can instantiate the above mentioned hybrid encryption by its nature, and it also generalizes this basic 2-step cryptosystem to x
-step one (x > 0
), namely, x-brid encryption.
Cryptographic Functions Employed in X-brid Encryption and Future Extension
We briefly explained our concept of x-brid encryption by providing a fairly simple hybrid instance as above. As a natural consequence of the generalization by Cascade
, we can simply increase the value x
and compose, say, tri-brid (x = 3
) or tetra-brid (x = 4
) encryption by cascading symmetric encryption steps. (We are honestly unsure this technically sounds at this point, but such structures may fit a certain type of application like the relationship of hybrid encryption and DRM.)
On the other hand, there is another room to generalize the cryptosystem from the viewpoint of encryption function at each step of x-brid encryption. The current implementation of Cascade
can utilize encryption functions of a couple of cryptographic suites, and they supports only basic public key encryption (RSA and elliptic curve cryptosystems) and symmetric key encryption (AES). We mean that as additions to the public/private key pair based cryptosystem, we should plan to supports other types of modern cryptography as suites. In fact, the concept and current implementation can accept more interesting and modern cryptographic primitive functions as a step of x-brid encryption. For instance:
- Broadcast encryption
- Attribute-based encryption
- Secret sharing (e.g., split our session key at the final step!)
We can see that by employing those functions at some steps, new types of cryptographic application could be realized.
We also mention that a classical broadcast encryption based on tree can be possibly instantiated in the context of x-brid encryption. This is from the following observation. First consider to attach public key encryption to all steps, and assume that the plaintext message at each step is the private key used in the previous step. This composes a tree of multiple layers of private key encapsulation that is the core of tree-based broadcast encryption.
Supported Crypto Suites
This library currently supports one cryptographic suite, js-crypto-utils. js-crypto-utils is a simple crypto suite for plain implementations of cryptographic functions unlike fully-specified suites like OpenPGP. We should note that js-crypto-utils can be viewed as a integrated wrapper or interfaces of RFC standardized functions that are mostly built-in ones of browsers and Node.js. At the initial implementation, although we had adopted openpgpjs as a suite, it has been disruptively changing its (internal) APIs to follow the OpenPGP RFC standards and hence we purged the OpenPGP support from cascade due to the toughness of tracking its changes.
- Encryption and decryption:
- js-crypto-utils
- Public key encryption (ECDH, HKDF and AES256-GCM combination)
- Public key encryption (RSA-OAEP)
- Session key encryption (AES-GCM)
- js-crypto-utils
- Signing and verification:
- js-crypto-utils
- RSA-PSS signature (May not work in IE11 and Edge.)
- RSASSA-PKCS1-v1_5 signature
- ECDSA signature
- js-crypto-utils
- Key generation:
- js-crypto-utils
- Public and private key pair generation w/ and w/o passphrase in PEM armored format (ECC and RSA)
- Session key generation
- js-crypto-utils
Installation and Setup
Installation
At your project directory, first do either one of the following.
$ npm install --save crypto-cascade # from npm
$ yarn add crypto-cascade # from yarn
Then import the Cascade
library as follows.
import cascade from 'crypto-cascade'
Of cource, you can also directly import the source code by cloning this Github repo.
Finishing up the setup
The Cascade
library doesn't internally import cryptographic suites, i.e., js-crypto-utils
in a static manner, but it loads them in a dynamic manner. In particular, it calls those suites via require
for Node.js
and as window
objects for browsers. This means that for browsers, js-crypto-utils
(jscu.bundle.js
) must be pre-loaded by <script>
tags in html files.
Usage
Here we give some basic example of usecases of Cascade
. This section is organized as follows. First, we explain how to generate keys in Cascade
. Then as a function employed at each step of x-brid encryption, we describe a very basic single encryption and signing operations in Cascade
. This can be also viewed as the case where x = 1
. After these warmp-ups, we finally show how to employ the x-brid encryption in Cascade
. We should really note that this is just an example and the source/test codes and JSDoc is useful to understand the detailed mechanism and usage of Cascade
.
Key generation
Cascade
provides a basic function to generate PEM-formatted public/private key pairs. The following example describes an example to generate PEM-formatted public and private keys of elliptic curve cryptography using js-crypto-utils
.
const keyParam = {
suite: 'jscu', // use 'js-crypto-utils'
keyParams: { type: 'ec', curve: 'P-256' }
};
const keyPair = await cascade.generateKey(keyParam);
const publicKeyPEM = keyPair.publicKey.keyString; // EC public key in PEM format
const privateKeyPEM = keyPair.privateKey.keyString; // EC private key in PEM format
Here we should note that for the key generation using js-crypto-utils
, the generated public key is encoded as SubjectPublicKeyInfo
specified as a part of X.509 public key certificate (RFC5280). On the other hand, the generated private key is encoded as PrivateKeyInfo
/OneAsymmetricKey
defined in PKCS#8 (RFC5958). Hence the private key can be encrypted with a passphrase just by passing API the passphrase string as given below.
const keyParam = {
suite: 'jscu',
keyParams: { type: 'ec', curve: 'P-256' },
passphrase: 'secret passphrase'
};
const keyPair = await cascade.generateKey(keyParam);
Then, the protected private key is encoded as EncryptedPrivateKeyInfo
.
The key generation API can generate not only EC public and private key strings but also RSA ones and session keys, where generated session keys are just random bytes given in Uint8Array
unlike formatted strings of public and private keys.
Basic encryption simultaneously with signing
The following example describes how to simply encrypt a message in Uint8Array
(String
is also accepted) simultaneously with signing on the given plaintext message in Cascade
. Since the cascaded encryption, i.e., x-brid encryption, will be employed by chaining this basic encryption and decryption function, we shall firstly explain this basic function and its usage in a step-by-step manner.
First of all, we need to import keys to be used, and obtain Keys
object that will be used to encrypt and decrypt in Cascade
.
const encryptionKeys = {
publicKeys: [ keys.publicKey.keyString ],
privateKeyPassSets:[ { privateKey: keys.privateKey.keyString, passphrase: '' } ] // for Signing
};
// import encryption key strings
const encryptionKeyImported = await cascade.importKeys(
'string',
{keys: encryptionKeys, suite: {encrypt_decrypt: 'jscu', sign_verify: 'jscu'}, mode: ['encrypt', 'sign']}
);
The configuration object for encryption is also required like the following form that must be matched with the type of given encryption and signing keys imported. The following is an example for the case where the given public and private keys are PEM-formatted EC keys, i.e., ECDH+HKDF public key encryption and ECDSA signing, via js-crypto-utils
(as referred to as jscu
in the code block). In the configuration, the encrypt object must have externalKey
entry to explicitly specify the origin of the encryption key in the step.
// Encryption and signing configuration
const encryptionConfig = {
encrypt: {
externalKey: true,
suite: 'jscu',
options: {
// HKDF with SHA-256 is employed on the master secret derived from ECDH.
hash: 'SHA-256',
info: '',
keyLength: 32,
// The session key HKDF derives is used to encrypt the message via AES-GCM.
encrypt: 'AES-GCM'
}
},
sign: {
suite: 'jscu',
// Signature is required and computed simultaneously with encryption.
required: true,
options: {
hash: 'SHA-256'
}
}
};
With the imported encryption/signing keys and encryption config, the encryption API cascade.encrypt
employs a single-phase encryption with signing, and it returns an object consisting of message
and signature
sub-objects. Those sub-objects are able to be respectively serialized with their instance method serialize()
.
// encrypt
const encryptionResult = await cascade.encrypt({
message: messageSomeHow, // in Uint8Array or String
keys: encryptionKeyImported,
config: encryptionConfig
});
// serialize
const serializedEncrypted = encryptionResult.message.serialize();
const serializedSignature = encryptionResult.signature.serialize();
Serialized objects must be de-serialized, i.e., ones in object forms, for decryption in Cascade
. Serialized encrypted message objects and signature objects can be de-serialized with cascade.importEncryptedBuffer
and cascade.importSignatureBuffer
functions and encrypted message and signature objects are obtained.
// de-serialize
const deserializedEncrypted = cascade.importEncryptedBuffer(serializedEncrypted);
const deserializedSignature = cascade.importSignatureBuffer(serializedSignature);
Much like basic encryption, the decryption and verification key strings must be imported and the Keys
object is required to decrypt de-serialized message objects.
const decryptionKeys = {
privateKeyPassSets:[ { privateKey: keys.privateKey.keyString, passphrase: '' } ],
publicKeys: [ keys.publicKey.keyString ] // for verification
};
// import decryption key strings
const decryptionKeyImported = await cascade.importKeys(
'string',
{keys: decryptionKeys, suite: {encrypt_decrypt: 'jscu', sign_verify: 'jscu'}, mode: ['decrypt', 'verify']}
);
By putting de-serialized message and signature objects with imported decryption keys as given above, the Cascade
API cascade.decrypt
returns a decrypted data and the result of signature verification.
// decrypt and verify
const decryptionResult = await cascade.decrypt({
data: { message: deserializedEncrypted, signature: deserializedSignature },
keys: decryptionKeyImported
});
That's all the basic encryption and decryption steps, and the cascaded encryption/decryption in Cascade
are composed of multiple basic ones that chained sequentially. Next section will briefly explain this step with some exemplary operations.
Cascaded x-brid encryption with signing
Here we describe how to employ cascaded x-brid encryption simultaneously with signing by showing a simple example.
All we need to prepare for the cascaded x-brid encryption/decryption is exactly similar to the basic encryption described in the previous section. One main difference from basic ones is that we have to define an encryption procedure given as an array of encryption configuration objects. The following is an sample encryption procedure that will be used in this section.
const encryptionProcedure = [
{ // step 1
encrypt: {
externalKey: false,
suite: 'jscu',
onetimeKey: {keyParams: {type: 'session', length: 32}}, options: {name: 'AES-GCM'}
},
sign: { required: true }
},
{ // step 2
encrypt: {
externalKey: true,
suite: 'jscu', options: { hash: 'SHA-256', info: '', keyLength: 32, encrypt: 'AES-GCM' }
},
sign: { suite: 'jscu', required: true, options: { hash: 'SHA-256' } }
}
];
The above example describes a procedure of hybrid encryption where the given message is first encrypted under a one-time session key generated internally at Cascade
(step 1), and the session key is then encrypted under the externally given public key (step 2). We can see that the encrypt.onetimeKey
specifies the key parameters generated at the step 1, and that the step 2 does not require the entry since public key(s) are given externally. In order to explain the origin of the encryption key explicitly externalKey
must be given in each step. In terms of signatures, the signing parameters and keys given the final step, i.e., step 2, will be applied all the other steps if sign.required = true
.
After setting up an encryption procedure, we then obtain a Keys
object by importing key strings in an exactly same manner as the basic encryption given above. This Keys
object must be matched the parameters of the final step in the given encryption procedure. We then instantiate a Cascade
object with the Keys
object and the given encryption procedure.
const encryptionKeys = {
publicKeys: [ keys.publicKey.keyString ], // for encryption
privateKeyPassSets: [ { privateKey: keys.privateKey.keyString, passphrase: '' } ] // for Signing
};
// import encryption keys
const encryptionKeyImported = await cascade.importKeys(
'string',
{
keys: encryptionKeys,
suite: {encrypt_decrypt: 'jscu', sign_verify: 'jscu'},
mode: ['encrypt', 'sign']
}
);
// instantiate encryption process
const eProcess = await cascade.createEncryptionCascade({
keys: encryptionKeyImported,
procedure: encryptionProcedure
});
Now all the encryption setup has done and we can encrypt a message in Uint8Array
(or string
) via encrypt
method of the Cascade
object. The ciphertext is given as an EncryptedMessage
object, and the object can be viewed as an array in which each element exactly corresponds to each step of the encryption procedure. Its serialized data can be obtained through serialize
method, and conversely, we can de-serialize the serialized data through importCascadeBuffer
function.
// encrypt
const encrypted = await eProcess.encrypt(message);
// serialize
const serialized = encrypted.serialize();
// de-serialize
const deserialized = cascade.importCascadedBuffer(serialized);
Decryption operation is exactly inverse of the above encryption operation. First we must obtain a Keys
object by importing decryption and verification keys, and instantiate the decryption Cascade
object to setup the decryption process by the obtained EncryptedMessage
object. Then, the plaintext message is finally obtained through decrypt
method.
const decryptionKeys = {
privateKeyPassSets:[ { privateKey: keys.privateKey.keyString, passphrase: '' } ], // for decryption
publicKeys: [ keys.publicKey.keyString ] // for verification
};
// import decryption keys
const decryptionKeyImported = await cascade.importKeys(
'string',
{
keys: decryptionKeys,
suite: { encrypt_decrypt: 'jscu', sign_verify: 'jscu' },
mode: ['decrypt', 'verify']
}
);
// instantiate decryption process
const dProcess = await cascade.createDecryptionCascade({
keys: decryptionKeyImported,
encrypted: deserialized
});
// decrypt
const decrypted = await dProcess.decrypt();
Drop and extract a part of ciphertext
We can also drop and extract a part of ciphertext, namely some elements of the array EncryptedMessage
. This enables us to control access rights of users who received the ciphertext by giving them the extracted part separately.
const idx = 0; // 0 to length-1 of encryption procedure
const extracted = encrypted.extract(idx); // drop and extract the indicated part from EncryptedMessage object
// still serializable after extraction
const serialized = encrypted.serialize();
// extracted part is an array where each element is serializable as well
const serializedExtracted = extracted.map( (obj) => obj.serialize() );
// de-serialize
const deserialized = cascade.importCascadedBuffer(serialized);
// de-serialize each extracted part.
const deserializedExtracted = cascade.importRawEncryptedBufferList(serializedExtracted);
// recover original EncryptedMessage object]
deserialized.insert(idx, deserializedExtracted);
Note
At this point, limitations of Cascade
are basically from those of js-crypto-utils. Please refer to their documents first.
Lisence
Licensed under the MIT license, see LICENSE
file.