# 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.

 Type to find tags:
 distributed-decryption× 9 constants× 9 Fixed, more or less arbitrary parameter values that appear in the definitions of cryptographic schemes, such as fixed initialization vectors for hash functions or S-box tables for block ciphers. ipsec× 9 index-of-coincidence× 8 a measure of the relative frequency of letters in a cipher text sample, which facilitates cryptanalysis of poly-alphabetic ciphers by allowing determination of the per… key-wrap× 8 license-key× 8 a typically short alphanumeric code used as a software copy-protection mechanism, by requiring a user to enter a valid key before they can use the software. memory-hard× 8 a property that, if proven to be possesed, makes an algorithm "immune" to time-memory tradeoffs, by "punishing" memory reductions. Usually algorithms possesing this property can't e… password-hashing× 8 certificateless-crypto× 8 a variant of ID-based cryptography intended to prevent the key escrow problem. Only a partial private key is generated by the key generation center (KGC) and the other … ecies× 8 Elliptic Curve Integrated Encryption Scheme (ECIES) is a public key encryption system proposed by Victor Shoup in 2001. decryption-oracle× 8 file-format× 8 secure-channel× 8 siv× 8 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… skein× 8 a cryptographic hash function. It was designed for the SHA-3 competition where it became a finalist, but wasn't chosen as SHA-3. simon× 7 A family of lightweight symmetric block-ciphers designed for good performance in hardware with block sizes ranging from 32 to 128 bits and key sizes ranging from 64 to 256 bits. siphash× 7 A fast 64-bit PRF that can be used as a MAC timed-release× 7 Time-lock puzzles and other cryptographic schemes intended to ensure that a message cannot be read until a certain time has passed. searchable-encryption× 7 a subfield of cryptography which constructs and analyzes cryptosystems that preserve the ability to 'search' over encrypted data, for some definition of 'search'. resources× 7 material that can be referenced for further information on cryptography. ransomware× 7 garbled-circuits× 7 used in Secure Multiparty Computation dual-ec-drbg× 7 short for Dual Elliptic Curve Deterministic Random Bit Generator; a pseudorandom number generator based on the elliptic curve discrete logarithm problem. camellia× 7 a 128-bit, symmetrical block cipher jointly developed by Mitsubishi and NTT of Japan. congruence× 7 If two numbers $b$ and $c$ have the property that their difference $b-c$ is integrally divisible by a number $m$ (i.e., $(b-c)/m$ is an integer), then $b$ and $c$ are said to be "congruent modulo $m$.… blake2× 7 a cryptographic hash function. It was designed for the SHA-3 competition where it became a finalist, but wasn't chosen as SHA-3. probabilistic-encryption× 7 the use of randomness in an encryption algorithm, so that when encrypting the same message several times it will, in general, yield different ciphertexts. mental-poker× 7 the common description for a set of cryptographic problems related to playing a fair game over a distance without the need for any trusted third party. literature× 7 Literature describes everything that has been written and/or visualized (here: in relation cryptography), which ranges from papers to books, and from publications to presentations. key-rotation× 7 Key rotation refers to a schedule or process for changing the key material. knapsack× 6 the problem of determining which numbers from a given collection of numbers have been added together to yield a specific sum: used in cryptography to encipher (and sometimes decipher) mess… idea× 6 The International Data Encryption Algorithm (IDEA) is a block cipher developed in 1991 by James Massey and Xuejia Lai. proxy-re-encryption× 6 a type of public-key encryption scheme that allows to transform ciphertexts encrypted under Alice's public key into ciphertexts decryptable by Bob negligible× 6 so unimportant, that it isn't worth considering. For example, if a flaw in a cryptographic algorithm is considered to be negligible, it is insignificant to both the … ocb× 6 The Offset CodeBook Mode, an authenticated encryption mode of operation for a block cipher. access-control× 6 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.