hash-function
121SHACAL — Infobox block cipher name = SHACAL caption = designers = Helena Handschuh, David Naccache publish date = derived from = SHA 1, SHA 256 derived to = related to = Crab certification = NESSIE (SHACAL 2) key size = 128 to 512 bits block size = 160… …
122Trusted timestamping — is the process of securely keeping track of the creation and modification time of a document. Security here means that no one not even the owner of the document should be able to change it once it has been recorded provided that the timestamper s …
123CPU cache — Cache memory redirects here. For the general use, see cache. A CPU cache is a cache used by the central processing unit of a computer to reduce the average time to access memory. The cache is a smaller, faster memory which stores copies of the… …
124Valiant-Vazirani theorem — The Valiant Vazirani Theorem was proven by Leslie Valiant and Vijay Vazirani in their paper titled NP is as easy as detecting unique solutions published in 1986. The theorem states that if there is a polynomial time algorithm for UNIQUE SAT, then …
125Claw-free permutation — In mathematical and computer science field of cryptography, a group of three numbers (x,y,z) is said to be a claw of two permutations f0 and f1 if f0(x) = f1(y) = z. A pair of permutations f0 and f1 are said to be claw free if there is no… …
126HAS-V — In cryptography, HAS V is a cryptographic hash function with a variable output length. HAS V is a hash function based on a block cipher. The hash function can produce hash values with lengths from 16 to 40 bytes.The hash function was developed by …
127Coalesced hashing — example. For purposes of this example, collision buckets are allocated in increasing order, starting with bucket 0. Coalesced hashing, also called coalesced chaining, is a strategy of collision resolution in a hash table that forms a hybrid of… …
128IP traceback — is a name given to any method for reliably determining the origin of a packet on the Internet. The datagram nature of the Internet makes it difficult to determine the originating host of a packet – the source id supplied in an IP packet can be… …
