# 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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 trapdoor× 15 a function that is easy to perform one way, but has a secret that is required to perform the inverse calculation efficiently. verifiability× 15 white-box× 14 In cryptography, white box analysis means extracting a secret value from an implementation of a function that uses the value. affine-cipher× 14 A type of monoalphabetic substitution cipher, wherein each letter in an alphabet is mapped to its numeric equivalent, encrypted using a simple function (ax + b) mod m. embedded× 14 a computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints. dictionary-attack× 14 In cryptanalysis and computer security, a dictionary attack is a technique for defeating a cipher or authentication mechanism by trying to determine its decryption key or pass-phrase by trying hundred… information-theory× 14 concerned with sending messages via electronic signals in the most efficient and error-free way. non-repudiation× 13 the assurance that someone cannot deny something. coding-theory× 13 Coding theory studies the properties of codes and their fitness for specific applications, and typically involves the removal of redundancy and the detection and/or correction of errors in transmitted… adversarial-model× 13 An adversary model formally defines the power of the adversary. It includes specifics whether the adversary is deterministic/randomized, uniform/non-uniform, interactive/non-interactive and how he int… asn.1× 13 a language that defines the way data is sent across dissimilar communication systems. avalanche× 13 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). ccm× 13 The Counter with CBC Mac mode, an authenticated encryption mode of operation for a block cipher based on the CTR mode and the CBC-MAC algorithm. . wpa2-psk× 13 Wi-Fi Protected Access 2 - Pre-Shared Key (also called WPA or WPA2 Personal) is a method of securing your network using WPA2 with the use of the optional Pre-Shared Key (PSK) authentication, which was… universal-hash× 13 broadcast-encryption× 12 blinding× 12 Technique mainly employed for factorization based cryptosystems to hide information. Usually blinding involves using a multiplicative homomorphic property of the cipher, it may be used to realize blin… arithmetic× 12 a branch of mathematics usually concerned with the four operations (adding, subtracting, multiplication and division) of positive numbers. elliptic-curve-generation× 12 pohlig-hellman× 12 a symmetric cipher. In number theory, the Pohlig–Hellman algorithm sometimes is a special-purpose algorithm for computing discrete logarithms in a multiplicative gro… private-set-intersection× 11 In a private set intersection (PSI) protocol two parties jointly compute the intersection of their private input sets. key-recovery× 11 A means of recovering cryptographic keys when the usual means for obtaining them is unavailable.; the ability to uncover the secret key to a cryptographic message. memory-hard× 11 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… garbled-circuits× 11 used in Secure Multiparty Computation digital-cash× 11 Money that may be transferred electronically from one party to another during a transaction. eax× 11 An authenticated encryption mode of operation for a block cipher, based on the CTR mode and the OMAC/CMAC MAC algorithm. cms× 11 an acronym for the Cryptographic Message Syntax, as defined in RFC5652 blum-blum-shub× 11 a deterministic Pseudo-Random Bit Generator with security demonstrably reducible to that of integer factorization. transport-security× 11 Transport security about establishing a real time secure channel from a sender to a receiver. Transport security generally requires more protection and a more intricate protocol than securing data at … tweakable-cipher× 11 a family of permutations where the key selects a particular permutation from that family. With a tweakable blockcipher both key and tweak are used to select a permutation. So tweak a… software-obfuscation× 11 the deliberate act of creating obfuscated code by making source or machine code difficult to understand from a human point of view. siv× 10 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… constants× 10 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. convergent-encryption× 10 Convergent encryption, also known as content hash keying, is simply encrypting a file using a symmetric encryption key which is the secure hash of the plaintext of the file. fortuna× 10 a family of cryptographically secure PRNGs; devised by Bruce Schneier and Niels Ferguson, who published it in 2003. fiat-shamir× 10