A cryptography cryptographic key cryptography key is called static if it is intended for use for a relatively long period of time and is typically intended for use in many instances of a cryptographic key establishment scheme. Contrast with an ephemeral key . See also Cryptographic key types Recommendation for Key Management &mdash Part 1 general, http csrc.nist.gov publications nistpubs 800 57 SP800 57 Part1.pdf NIST Special Publication 800 57 http csrc.nist.gov CryptoToolkit NIST Cryptographic Toolkit Category Key management ... more details
A cryptography cryptographic key cryptography key is called ephemeral if it is generated for each execution of a key establishment process. In some cases ephemeral keys are used more than once, within a single session e.g., in broadcast applications where the sender generates only one ephemeral key pair per message and the private key is combined separately with each recipient s public key . Contrast with a static key . See also Cryptographic key types External links Recommendation for Key Management &mdash Part 1 general, http csrc.nist.gov publications nistpubs 800 57 SP800 57 Part1.pdf NIST Special Publication 800 57 http csrc.nist.gov CryptoToolkit NIST Cryptographic Toolkit Category Key management Category Cryptography ru crypto stub ... more details
Merge Unique key date August 2009 In Data modeling database design , a compound key is a key that consists of 2 or more attributes that uniquely identify an entity occurrence. Each attribute that makes up the compound key is a simple key in its own right. This is often confused with a composite key whereby even though this is also a key that consists of 2 or more attributes that uniquely identify an entity occurrence, at least one attribute that makes up the composite key is not a simple key in its own right. An example might be an entity that represents the modules each student is attending at University. The entity has a studentId and a moduleCode as its primary key. Each of the attributes that make up the primary key are simple keys because each represents a unique reference when identifying a student in one instance and a module in the other. In contrast, using the same example, imagine we identified a student by their firstName lastName. In our table representing students on modules our primary key would now be firstName lastName moduleCode. Because firstName lastName represent a unique reference to a student, it is not a simple key, it is a combination of attributes used to uniquely identify a student. Therefore the primary key for this entity is a composite key. No restriction is applied to the attributes regarding their initial ownership within the Data modeling data model . This means that any one, none, or all, of the multiple attributes within the compound key can be foreign key s. Indeed, a foreign key may itself be a compound key. Compound keys almost always originate from Attributive table attributive or Associative table associative entities tables within the model, but this is not an absolute. See also relational database candidate key primary key alternate key foreign key unique key surrogate key Superkey External links http esw.w3.org topic CIFP Composite Inverse Functional Properties for an equivalent notion in the Semantic Web http rdbms.opengrass.net ... more details
unreferenced date June 2009 A change key is a key on the lowest level of a Key lock Master key master keying system. Change keys are also referred to as day keys. Typically change keys are issued to personnel that require access to one or two areas in a facility. By definition, a change key is not a Key lock Master key master key . Change key can also refer to the specialized keys used to change the combination setting of a combination lock . Change key can refer to a special key on the Sabre Keyboard, located to the right of the P key, and can also be typed by doing ALT 0164, or using in Turbo Sabre. Sabre computer system Sabre is a Computer reservations system Global Distribution System GDS , used by travel agencies to book flights, hotel reservations, car rentals, etc. tool stub Category Locksmithing ... more details
other uses Key management is the management of Key cryptography cryptographic keys in a cryptosystem ... cryptographic protocol design, Key server cryptographic key server s, user procedures, and other relevant protocols. Key management concerns keys at the user level, either between users or systems. This is in contrast to key scheduling key scheduling typically refers to the internal handling of key material within the operation of a cipher. Successful key management is critical to the security ... between all of these elements. Types of keys main Cryptographic key types Cryptographic systems ... keys or asymmetric keys. In a symmetric key algorithm the keys involved are identical for both encrypting ... used in conjunction to communicate. Key exchange Prior to any secured communication, users must setup ... of a symmetric key system . In others it may require possessing the other party s public key. While public keys can be openly exchanged their corresponding private key is kept secret , symmetric keys must be exchanged over a secure communication channel. Formerly, exchange of such a key was extremely ... . Clear text exchange of symmetric keys would enable any interceptor will immediately learn the key, and any encrypted data. The advance of public key cryptography in the 1970s has made the exchange of keys less troublesome. Since the Diffie Hellman key exchange protocol was published in 1975, it has become possible to exchange a key over an insecure communications channel, which has substantially reduced the risk of key disclosure during distribution. It is possible, using something akin to a book code , to include key indicators as clear text attached to an encrypted message. The encryption ... manual, though it was in fact a code. The German Army Enigma machine Enigma symmetric encryption key was a mixed type early in its use the key was a combination of secretly distributed key schedules and a user chosen session key component for each message. In more modern systems, such as OpenPGP compatible ... more details
Robert Key may refer to Robert Key cricketer born 1979 , English cricketer Robert Key politician born 1945 , British politician, the Conservative MP for Salisbury See also Robert Keyes , Catholic conspirator Bobby Keys , American musician hndis name Key, Robert ... more details
Activation key may refer to Product activation Product key Volume license keyKey changer software Dab Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
The Key Baronetcy , of Thornbury in the County of Gloucester and of Denmark Hill in the County of Surrey, was a title in the Baronetage of the United Kingdom . It was created on 17 August 1831 for Sir John Key, 1st Baronet John Key , Lord Mayor of London between 1830 and 1831. The title became extinct on the death of the fourth Baronet in 1932. Key Baronets, of Thornbury and Denmark Hill 1831 Sir John Key, 1st Baronet 1794 1858 Sir Kingsmill Grove Key, 2nd Baronet 1815 1899 Sir John Kingsmill Causton Key, 3rd Baronet 1853 1926 Sir Kingsmill James Key, 4th Baronet 1864 1932 References Rayment bt date March 2012 Use dmy dates date March 2012 DEFAULTSORT Key Category Baronetcies Category Extinct baronetcies ... more details
Infobox Album See Wikipedia WikiProject Albums Name Key Nell Type ep Artist Gescom Cover Gescom Key Nell album art.jpg Released August 1995 Recorded Genre Electronic music Electronic Length 33 22 Label Skam Records Producer Reviews Last album The Sounds of Machines Our Parents Used br 1994 This album Key Nell br 1995 Next album Motor br 1996 Key Nell is an EP by Gescom . Track listing Key Nell 1 8 02 Key Nell 2 11 03 Key Nell 3 8 11 Key Nell 4 11 06 Category Gescom albums fr Key Nell ... more details
Refimprove date December 2009 A session key is a single use symmetric key used for encrypting all message s in one Session computer science communication session . A closely related term is content encryption key CEK , traffic encryption key TEK , or multicast key which refers to any key used to encrypt messages, as opposed to other uses, like encrypting other keys key encryption key KEK or key wrapping key . Session keys can introduce complication into a system, normally to an undesirable end Citation needed date March 2011 . However, they also help with some real problems. There are two primary reasons to use session keys First, several cryptanalytic attacks become easier as more material encrypted with a specific key is available. By limiting the amount of data processed using a particular key, those attacks are made more difficult. Second, public key cryptography asymmetric encryption is too slow for many purposes, and all symmetric key algorithm secret key algorithm s require that the key is securely distributed. By using an asymmetric algorithm to encrypt the secret key for another, faster, symmetric algorithm, it s possible to improve overall performance considerably. This is the process used by Pretty Good Privacy PGP and GNU Privacy Guard GPG ref OpenPGP Message Format http tools.ietf.org html rfc4880 ref . Like all cryptographic keys , session keys must be chosen so that they cannot be predicted by an attacker, usually requiring them to be chosen randomly. Failure to choose session keys or any key properly is a major and too common in actual practice design flaw in any crypto system Citation needed date March 2011 . See also Hardware random number generator List of cryptographic key types Perfect forward secrecy One time pad References Reflist DEFAULTSORT Session Key Category Key management de Session Key he nl Sessiesleutel simple Session key ... more details
Key generation is the process of generating Key cryptography keys for cryptography . A key is used to Encryption encrypt and decrypt whatever data is being encrypted decrypted. Modern cryptographic systems include symmetric key algorithm s such as Data Encryption Standard DES and Advanced Encryption Standard AES and Public key cryptography public key algorithms such as RSA algorithm RSA . Symmetric key algorithms use a single shared key keeping data secret requires keeping this key secret. Public key algorithms use a public key and a private key . The public key is made available to anyone often by means of a digital certificate . A sender encrypts data with the public key only the holder of the private key can decrypt this data. Since public key algorithms tend to be much slower than symmetric key algorithms, modern systems such as Transport Layer Security TLS and Secure Shell SSH use a combination of the two one party receives the other s public key, and encrypts a small piece of data either a symmetric key or some data used to generate it . The remainder of the conversation uses a typically faster symmetric key algorithm for encryption. Computer cryptography uses integers for keys ... situations, the key is created using a passphrase and a key generation algorithm , usually involving ... force attack &mdash simply attempting every number, up to the maximum length of the key. Therefore, it is important to use a sufficiently long key length longer keys take exponentially longer to attack, rendering a brute force attack impractical. Currently, key lengths of 128 bit 128 bit s for symmetric key algorithms and 1024 bits for public key algorithms are common. See also Distributed key generation For some protocols, no party should be in the sole possession of the secret key. Rather, during distributed key generation , every party obtains a secret sharing share of the key. A Threshold ... task, such as decrypting a message. Category Key management crypto stub id Key generation simple Key ... more details
about the record label Offkey Recordings the jazz standard sometimes known as Off Key Desafinado Unreferenced date December 2009 Wiktionary off key Off key is a term often used to denote musical content that is not at the expected frequency or pitch music pitch period, either with respect to some absolute reference frequency, or in a ratiometric sense i.e. through removal of exactly one degree of freedom, such as the frequency of a keynote , or pitch intervals not well defined in the ratio of small whole numbers. The term may also refer to a person or situation being out of step with what is considered normal or appropriate. Explanation of on key The opposite of off key is on key or in key, which suggests that there is a well defined keynote, or reference pitch. This does not necessarily have to be an absolute pitch but rather one that is relative for at least the duration of a song. A song is usually in a certain key, which is usually the note that the song ends on, and is the base frequency around which it resolves to at the end. The base frequency is usually called the Harmony harmonic or key music key center. Being on key presumes that there is a key center frequency around which some portion of notes have well defined intervals to. Deliberate use off key content Examples include the words Thought He Was a Goner in the song And the Cat Came Back and the words Yum Yum in the children s song Five Green and Speckled Frogs . See also Melody Tonality Tonic music DEFAULTSORT Off Key Category Musical tuning nl Off key ... more details
Unreferenced stub auto yes date December 2009 Image Ohiokey.jpg thumb 300px right Ohio Key in the lower Florida Keys Ohio Key is an island in the lower Florida Keys . U.S. Route 1 in Florida U.S. 1 or the Overseas Highway crosses the key at approximately mile marker 39, between Missouri Key and Bahia Honda Key . It was once known as Little Duck Key, however the name Little Duck Key is currently used for a very small island about a mile east that is the western terminus of the Seven Mile Bridge . Today it is also known as Sunshine Key , after a camping resort located there. The portion of the island south of US Route 1 is protected as the Ohio Key National Wildlife Refuge . Florida Keys Coord 24.67228 N 81.245903 E display title Category Florida Keys Category Islands of Monroe County, Florida Category Unincorporated communities in Monroe County, Florida monroeFL geo stub de Ohio Key fr Ohio Key he ... more details
Unreferenced date January 2008 File Menu key screen.jpg thumb The context menu in Mozilla Firefox In computing, the Menu key or Application key is a key found on Microsoft Windows oriented computer Keyboard computing keyboard s, introduced at the same time as the Windows key Windows logo key . Its symbol is usually a small icon depicting a pointer computing WIMP pointer hovering above a menu, and it is typically found on the right side of the keyboard between the right Windows key Windows logo key and the right Control key or between the right Alt key and the right Control key . The key s primary function is to launch a context menu with the keyboard rather than with the usual right mouse button. It can be used when the right mouse button is not present on a Mouse computing mouse . Some Windows public terminals do not have a Menu key on their keyboard to prevent users from right clicking however, in many Windows applications, a similar functionality can be invoked with the Shift F10 keyboard shortcut , or sometimes Ctrl Shift F10. Some laptop computers include a Menu function on the Fn key usually operated by typing Shift Fn , however, this generally invokes functions built into the vendor s software and is not the same as the key described above. For example, the Logitech Illuminated Keyboard has an FN key where the Menu key is usually found, pressing which together with its Print screen key small above Home small , produces the Menu key function. Programmers using the Windows API can intercept this key by looking for a WM KEYDOWN message with wParam VK APPS defined as 0x5D in winuser.h . See also Context menu Computer keyboard Keyboard Keyboard keyboard keys compu hardware stub References http www.worldstart.com tips tips.php 595 http encyclopedia2.thefreedictionary.com Menu key Category Computer keys de Men Taste fr Touche menu ko it Tasto Menu kk ja pl Menu klawisz zh ... more details
Unreferenced stub auto yes date December 2009 Crawl Key is an island in the middle Florida Keys . U.S. Route 1 in Florida U.S. 1 or the Overseas Highway traverses the key between Grassy Key and Long Point Key , which is part of a long stretch of road known as the Grassy Key Causeway. It is entirely within the city of Marathon, Florida . The island was named for the pens kraals where large sea turtles were once held until butchered for steaks and soup. The entrance to Curry Hammock State Park , on Little Crawl Key which is adjacent to Crawl Key on the oceanside, is located here. Florida Keys Coord 24.748614 N 80.977478 E display title Category Florida Keys Category Islands of Monroe County, Florida fr Crawl Key Middle Keys monroeFL geo stub ... more details
Unreferenced stub auto yes date December 2009 Rockland Key is an island in the lower Florida Keys about 4 miles east of Key West . U.S. Route 1 in Florida U.S. 1 the Overseas Highway crosses the edge of the key at approximately mile markers 8 9.5, between Boca Chica Key and Big Coppitt Key . It is located directly across the Overseas Highway from East Rockland Key . Coord 24 35 31.99 N 81 41 01 W display title Florida Keys Category Islands of Monroe County, Florida Category Unincorporated communities in Monroe County, Florida Category Suburbs of Key West monroeFL geo stub fr Rockland Key ... more details
Key caps may refer to Key Caps , an Apple Macintosh operating system character font utility Keycap , a computer keyboard element disambig ... more details
for programs which generate software license keys Keygen noref date September 2010 A key generator is used in many cryptography cryptographic Protocol computing protocol s to generate a sequence with many pseudo random characteristics. This sequence is used as an encryption key at one end of communication, and as a decryption key at the other. Examples of key generators include linear feedback shift register s LFSR and the Solitaire cipher Solitaire or Pontifex cipher. Category Key management crypto stub ... more details
Golden key or Golden Key can mean in English translation the Latin phrase clavis aurea , used metaphorically in literature Golden Key International Honour Society Les Clefs d Or The Golden Keys , a professional association of hotel concierge s The Golden Key , a book by George MacDonald The Golden Key , a book by Don Shaw screenwriter A device used to uncover the wall of riddles in Omegle Chat disambig ... more details
Image Flemingkeysouth.jpg thumb 300px right The southern portion of Fleming Key as seen from the east, showing connecting bridge Fleming Key is an island off the northwest corner of the island of Key West , Florida in the lower Florida Keys . It is roughly convert 2 mi km long by convert 0.25 mi km wide. It is connected to the island of Key West by the Fleming Key Bridge Mustin Road , having convert 18 ft of clearance over Fleming Key Cut, a small channel. ref http www.keywestcity.com department division.asp?fDD 13 78 Key West City directions to Garrison Bight Marina ref The island and bridge road are part of a section of the Naval Air Station Key West Key West Naval Air Station called Trumbo Point and are inaccessible to civilians without US Navy clearance. The island has a 10 million gallon per day wastewater treatment plant. ref http www.keywestwastewater.com Key West Wastewater ref It also includes a dolphin research center and marine corrosion testing facility. The United States Army Special Forces Underwater Operations Training Center is located at the far northern tip of Fleming Key. Gallery Image Flemingkeynorth.jpg thumb right The northern portion of Fleming Key as seen from the east, showing several NAS structures gallery Image Key West 021 21.JPG center Aerial view of south side of Fleming Key and bridge Image Key West 022 22.JPG center Aerial view of north side of Fleming Key gallery Notes reflist External links http maps.google.com maps?f q&hl en&q 33040&ie UTF8&z 14&ll 24.579051, 81.795874&spn 0.035827,0.086002&t h&om 1 Aerial color image from Google Maps Key West Neighborhoods Coord 24.57991 N 81.796045 E display title Category Neighborhoods in Key West, Florida Category Uninhabited islands of Monroe County, Florida de Fleming Key fr Fleming Key ... more details
Knockemdown Key is an island in the lower Florida Keys approximately convert 20 mi km east of Key West . It is northwest of Summerland Key , between Cudjoe Key, Florida Cudjoe Key and Big Torch Key . A http tidesandcurrents.noaa.gov data menu.shtml?stn 8724302 20Knockemdown 20Key, 20FL&type Bench 20Mark 20Data 20Sheets tidal station managed by NOAA is located on the island. Access to the island is by boat only, with the closest public ramp located at the north end of Blimp Road on Cudjoe Key . Geography Knockemdown Key is located at 24 42.9 N and 81 28.7 W, north of Summerland Key and northeast of Cudjoe Key . It has a land area of approximately convert 688 acre km2 . The island has significant mangrove growth and is populated by Key deer . Attractions, Events, Recreation and Culture The island is considered one of the finest locations in the Florida Keys for sea kayaking . External links http www.knockemdownkey.com Knockemdown Key Web Site Florida Keys Coord 24.69826 N 81.474781 E display title Category Florida Keys Category Islands of Monroe County, Florida fr Knockemdown Key ... more details
Meig s Key is a small island north of the upper Florida Keys in Biscayne National Park . It is in Miami Dade County, Florida . It is located in southern Biscayne Bay , just north of Old Rhodes Key and Totten Key , just southeast off the southern tip of Elliott Key , and due south of Adams Key . It is on the south side of Caesar Creek, the creek that separates Elliott and Old Rhodes Keys. History Its previous names were Black Caesar s Key and Caesar Key . It was probably renamed for William Meigs, who came to the Biscayne Bay area from Philadelphia in 1891. Gerdes, in his Reconnaissance of the Florida Reefs and all the Keys 1849 states Black Caesar s Key is an island, small, between Old Rhodes Key & Elliot s Key Old Rhodes being nearest to N. of Key Largo the opening on both sides is called Black Caesar s Creek. An environmental impact statement published in 1978 by the Biscayne National Monument contains a map which shows Caesar Key here. ref http keys.fiu.edu gazetteer 00000070.htm Key Names Florida Keys Gazetteer ref References references Florida Keys Coord 25.393321 N 80.233954 E display title Category Florida Keys Category Keys in Miami Dade County, Florida Category Islands of Miami Dade County, Florida Category Uninhabited islands of Miami Dade County, Florida Category Biscayne National Park monroeFL geo stub ... more details
Image Florida Keys SPOT 1283.jpg thumb Sugarloaf Key is a single island in the lower Florida Keys that forms ... referred to simply and with technical accuracy as Sugarloaf Key , this island contains two distinct island communities, known as Lower Sugarloaf Key and Upper Sugarloaf Key . The island is somewhat U shaped, with Upper Sugarloaf Sound and Park Key separating the island into Upper Sugarloaf Key and Lower Sugarloaf Key. So called, upper and lower, simply referencing the relative nature of their geographic positions, not as distinct islands. Lower Sugarloaf Key is located approximately 13 miles from Key West , between Park Key and Saddlebunch Keys . Upper Sugarloaf Key is located about 15 miles east of Key West , between Park Key and Cudjoe Key . While smaller in land area than Upper Sugarloaf Key, Lower Sugarloaf Key has a greater density of population. U.S. Route 1 in Florida U.S. 1 or the Overseas Highway crosses Upper Sugarloaf Key at approximately mile markers 19 20.5 and Lower Sugarloaf Key at approximate mile markers 16.5 17.5. The name Sugarloaf, is variously attributed as arising from either an Indian mound on the east side of Upper Sugarloaf Key, north of the present highway ... they are soft and do not travel well. Lower Sugarloaf Key has family owned Sugarloaf Lodge and restaurant, an airport, Sugarloaf Volunteer Fire Station, and Sugarloaf Key Bat Tower . Upper Sugarloaf Key has two public schools, a church, restaurant, commercial offices, public campground and the Great White Heron National Wildlife Refuge . Sugarloaf Key is already part of the Overseas Highway and will soon ... connecting mainland Florida to Key West via bicycle path s . Sugarloaf? Upper Sugarloaf? Lower Sugarloaf ... Key and Lower Sugarloaf Key are reasonably useful to help locals and visitors identify the separate ... of Key West Category Unincorporated communities in Monroe County, Florida monroeFL geo stub de Sugarloaf Key fr Sugarloaf Key ... more details
about the computer keyboard key the touch typing position Home row music key signatures Tonic music Refimprove date January 2008 Image Insertpad.svg thumb 200px The home key among other keys The home key is a key commonly found on computer keyboard s. The key has the opposite effect of the end key . In limited size keyboards where the home key is missing the same functionality can be reached via the key combination of key press fn key fn left Microsoft Windows In modern Microsoft Windows text editing applications, it is primarily used to return the cursor to the beginning of the line where the cursor is located. When the text is not editable, the home key is used to return to the beginning of the document this can also be done in editable text if the key is pressed along with control key control . The home key can also be used to highlight all the characters before the cursor in a certain line if pressed along with shift key shift in editable text. Mac OS X Only full sized Apple keyboards have a Home key. On most Mac OS X applications, the key works like the original on UNIX in the days of dumb terminals, where Home moves to the start of a document. When the key is pressed, the window scrolls to the top, while the caret position does not change at all that is, the home key is tied to the current window, not the text box being edited. ref http edr.euro.apple.com mac library documentation UserExperience Conceptual AppleHIGuidelines XHIGUserInput XHIGUserInput.html ref ref http evansweb.info articles 2005 03 24 mac os x and home end keys ref On Apple keyboards that do not have a Home key, one can press key press fn key fn left for the Home key functionality described above. To get ... , one can press key press command key command left . Linux In Linux , the home key has basically ... key can be used to highlight all the characters before the cursor in a certain line if pressed ... options. The Home key took the user to the top menu screen. References reflist Keyboard ... more details
File Ctl wndws alt.jpg thumb right The Alt key on a Windows keyboard refimprove date January 2008 For a list of keyboard shortcuts see Table of keyboard shortcuts The Alt key pronounced IPAc en l ... key is a modifier key , used in a similar fashion to the Shift key . For example, simply pressing A will type the letter a, but if you hold down either Alt key while pressing A, the computer will perform an key press Alt A function, which varies from Computer program program to program. The key is located ... key, there is an AltGr key Alt Gr key to the right of the space bar. Evolution The Alt key has come to replace the Meta key of the old MIT keyboards. In their original function, both Alt and Meta would set the high bit of the signal generated by the key to 1 for example, A generates 01000001 while key press Alt A generates 11000001 . However, in modern software, due to the requirement of the high .... File AppleAlt.jpg thumb right The Alt key on an Apple keyboard Since the 1990s Alt has been printed on the Option key on most Mac keyboards. Alt is used in non Mac software, such as Unix and Windows programs, but in OS X it is always referred as Option key. Option key s behaviour in Mac OS X differs slightly from that of the Windows Alt key it is used as a modifier rather than to access pull down menus, for example . Alt key combinations The Alt key is well known as part of the Control Alt Delete key combination, which in some operating systems brings up a task manager . If you use Mac OS ... key is part of include Alt F4 , to close a window, and Alt Tab , to switch between windows. Additionally ... down menus. Alt key for special characters Windows In Microsoft Windows , holding down the Alt key ... 0225 key press Alt 0 key press 2 key press 2 key press 5 on the numeric keypad will result in , the character ... the Num Lock key is on. Mac OS X On a Macintosh , the Alt key is called the Option key . It is not used ... shows the special characters a US Mac keyboard will produce when the Option key is pressed. ref ... more details
Encyclopedia
top
