# Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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 key-escrow× 2 key-rotation× 2 Key rotation refers to a schedule or process for changing the key material. sha-3-competition× 2 Between 2007 and 2012 NIST ran a hash function competition to determine SHA-3. In the end Keccak was chosen as winner and became SHA-3. secure-index× 2 plausible-deniability× 2 Plausible deniability may refer $1)$ to deniable encryption schemes allowing to decrypt a ciphertext for a message $m$ to some distinct message $m'$ or $2)$ to a feature provided by deniable file syst… pkcs8 Public-Key Cryptography Standard, number 8, describes the Private-Key Information Syntax Standard which is used to carry (encrypted or unencrypted) private certificate keypairs. See [RFC 5208](http://… pir A PIR (Private Information Retrieval) protocol allows a user to retrieve an item from a server in possession of a database without revealing which item is retrieved. protocols skipjack a 64-bit block cipher developed by the U.S. National Security Agency (NSA). siv a two-pass AEAD block cipher mode of operation described in RFC 5297. It can be used either for key-wrap (nonce-less deterministic authenticated encryption) or… remote-data-checking Remote data checking protocols allow a client that has stored data at an untrusted server to efficiently verify that the server possesses the original data without retrieving it. rc6 a 128-bit block cipher, formerly an AES candidate, that makes heavy use of data-dependent rotations. key-schedule an algorithm that expands a relatively short master key to a relatively large expanded key for later use in an encryption and decryption algorithm. message-digest meta-cryptography md2 RFC 1319 — The MD2 Message-Digest Algorithm is a cryptographic hash function which is no longer considered secure. mars a 128-bit block cipher with variable key size of between 128 and 448 bits. It has a heterogeneous structure: several rounds of a cryptographic core are “jacketed” by un-keyed mixing rounds, to… luby-rackoff a Feistel cipher where in each round the nonlinear function used is assumed to be chosen uniformly at random from the set of all such functions. These ciphers are mainly of th… hamming a family of binary, linear error-correcting codes that are used to detect and correct data transmission errors. Hamming codes are able detect up to two simultaneous bit errors and ca… hardcore-predicate homomorphic-signatures A homomorphic signature scheme (also malleable signature scheme) is a digital signature scheme that allows computations on signed data (without access to the secret signing key) while preserving the… double-encryption ephemeral short-lived, like (for example) an ephemeral key, which is a key that only exists within the lifetime of a communication session. embedded a computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints. comparison crl one of two common methods when using a public key infrastructure for maintaining access to servers in a network. cryptoapi The Cryptographic Application Programming Interface is an application programming interface included with Microsoft Windows operating systems that provides services to enable developers to secure Wind… avalanche evident if, when an input is changed slightly (for example, flipping a single bit) the output changes significantly (e.g., half the output bits flip). access-control a possible goal of cryptography, where the idea is to restrict access to documents, equipment, locations, or keys to individuals who are authorized such access. accumulators a one way membership function. It answers a query as to whether a potential candidate is a member of a set without revealing the individual members of the set. acoustic-cryptanalysis a type of side channel attack which exploits sounds emitted by computers or machines. binding sstp a VPN tunneling protocol that allows the tunneling of PPP or L2TP traffic over an SSL connection. threefish A family of tweakable symmetric block-cipher algorithms with 256, 512 and 1024 bit block and key sizes. tag-collision suite-b a set of cryptographic algorithms promulgated by the National Security Agency as part of its Cryptographic Modernization Program.