# 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:
 license-key× 6 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. mental-poker× 6 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. oaep× 6 a padding scheme which has been standardized in [PKCS #1v29](http://www.emc.com/collateral/white-papers/h11300-pkcs-1v2-2-rsa-cryptography-standard-wp.pdf) and… playfair× 6 a digraph substitution cipher. It employs a table where one letter of the alphabet is omitted, and the letters are arranged in a 5x5 grid. quadratic-residuosity× 6 A residue of order 2. A number $a$ for which the congruence $x^2 ≡ a \pmod m$ has a solution is called a quadratic residue modulo $m$. ripemd× 6 The RACE Integrity Primitives Evaluation Message Digest (RIPEMD) is a family of cryptographic hash functions. secure-channel× 6 functional-encryption× 6 a type of public-key encryption, where the party that has access to a secret key can learn a function from that key, which is used to encrypt and decrypt messages. fortuna× 6 a family of cryptographically secure PRNGs; devised by Bruce Schneier and Niels Ferguson, who published it in 2003. blum-blum-shub× 6 a deterministic Pseudo-Random Bit Generator with security demonstrably reducible to that of integer factorization. cmac× 6 a block cipher-based message authentication code algorithm. birthday-attack× 6 a cryptanalytic technique. Birthday attacks can be used to find collisions in a cryptographic hash function. For instance, suppose we have a hash function which, when supplied wit… data-privacy× 5 Data privacy refers to (cryptographic) methods to prevent the disclosure of sensitive (identifying) information of persons. copy-protection× 5 Copy protection or content protection covers various mechanism, such as DRM and software license keys, used to restrict the unauthorized copying or use of software or digital media. certificateless-crypto× 5 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 … accumulators× 5 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. fiat-shamir× 5 distributed-decryption× 5 index-of-coincidence× 5 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… idea× 5 The International Data Encryption Algorithm (IDEA) is a block cipher developed in 1991 by James Massey and Xuejia Lai. secure-storage× 5 Secure storage describes storing resources in a secure way, so that they are only available to authorized users and trusted networks. skein× 5 a cryptographic hash function. It was designed for the SHA-3 competition where it became a finalist, but wasn't chosen as SHA-3. safe-prime× 5 a prime number of the form 2p + 1, where p is also a prime. rabin-cryptosystem× 5 A public-key cryptosystem based on squaring modulo the product of two primes, introduced in 1979 by Michael O. Rabin and proven to have security reducible to the hardness of integer factorization. proxy-re-encryption× 5 pkcs11× 5 Public-Key Cryptography Standard number 11 is one of the family of standards called Public-Key Cryptography Standards (PKCS). multi-prime-rsa× 5 the product of more than two primes. literature× 5 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-wrap× 5 key-schedule× 5 an algorithm that expands a relatively short master key to a relatively large expanded key for later use in an encryption and decryption algorithm. timed-release× 5 Time-lock puzzles and other cryptographic schemes intended to ensure that a message cannot be read until a certain time has passed. wpa2-psk× 5 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× 4 knapsack× 4 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… key-recovery× 4 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. needham-schroeder× 4 Needham–Schroeder refers to both, a symmetric key or a public key authentication protocol.