• cryptography, E2 is a symmetric block cipher which was created in 1998 by NTT and submitted to the AES competition. Like other AES candidates, E2 operates...
    2 KB (160 words) - 13:57, 4 January 2023
  • Haplogroup E2 (Y-DNA), a human Y-chromosome DNA haplogroup E2 (cipher), a block cipher submitted to the AES competition by NTT Tungsten E2, a business-class...
    4 KB (583 words) - 20:19, 8 March 2025
  • Thumbnail for Block cipher mode of operation
    In cryptography, a block cipher mode of operation is an algorithm that uses a block cipher to provide information security such as confidentiality or...
    52 KB (5,828 words) - 20:04, 23 May 2025
  • Thumbnail for SM4 (cipher)
    ShāngMì 4 (SM4, 商密4) (formerly SMS4) is a block cipher, standardised for commercial cryptography in China. It is used in the Chinese National Standard...
    9 KB (958 words) - 16:44, 2 February 2025
  • Thumbnail for Cryptography
    plaintext. A cipher (or cypher) is a pair of algorithms that carry out the encryption and the reversing decryption. The detailed operation of a cipher is controlled...
    100 KB (11,007 words) - 23:45, 5 June 2025
  • Thumbnail for Symmetric-key algorithm
    use either stream ciphers or block ciphers. Stream ciphers encrypt the digits (typically bytes), or letters (in substitution ciphers) of a message one...
    15 KB (1,540 words) - 19:12, 22 April 2025
  • Thumbnail for Feistel cipher
    cryptography, a Feistel cipher (also known as Luby–Rackoff block cipher) is a symmetric structure used in the construction of block ciphers, named after the...
    10 KB (1,316 words) - 19:41, 2 February 2025
  • Blowfish is a symmetric-key block cipher, designed in 1993 by Bruce Schneier and included in many cipher suites and encryption products. Blowfish provides...
    18 KB (2,000 words) - 15:11, 16 April 2025
  • Coppersmith • Dorabella Cipher • Double Ratchet Algorithm • Doug Stinson • Dragon (cipher) • DRYAD • Dual_EC_DRBG • E0 (cipher) • E2 (cipher) • E4M • EAP-AKA...
    67 KB (2,932 words) - 23:20, 16 May 2025
  • Thumbnail for Advanced Encryption Standard
    Standards and Technology (NIST) in 2001. AES is a variant of the Rijndael block cipher developed by two Belgian cryptographers, Joan Daemen and Vincent Rijmen...
    50 KB (5,678 words) - 12:38, 4 June 2025
  • cryptography, a block cipher is a deterministic algorithm that operates on fixed-length groups of bits, called blocks. Block ciphers are the elementary building...
    51 KB (6,569 words) - 08:42, 11 April 2025
  • Thumbnail for GOST (block cipher)
    block cipher (Magma), defined in the standard GOST 28147-89 (RFC 5830), is a Soviet and Russian government standard symmetric key block cipher with a...
    14 KB (1,455 words) - 05:51, 28 February 2025
  • In cryptography, Camellia is a symmetric key block cipher with a block size of 128 bits and key sizes of 128, 192 and 256 bits. It was jointly developed...
    18 KB (1,805 words) - 02:28, 19 April 2025
  • Initialization vector (category Block cipher modes of operation)
    between (potentially similar) segments of the encrypted message. For block ciphers, the use of an IV is described by the modes of operation. Some cryptographic...
    14 KB (1,797 words) - 08:53, 7 September 2024
  • Lucifer was the name given to several of the earliest civilian block ciphers, developed by Horst Feistel and his colleagues at IBM. Lucifer was a direct...
    6 KB (749 words) - 15:35, 22 November 2023
  • Thumbnail for International Data Encryption Algorithm
    Improved Proposed Encryption Standard (IPES), is a symmetric-key block cipher designed by James Massey of ETH Zurich and Xuejia Lai and was first described...
    12 KB (1,499 words) - 19:07, 14 April 2024
  • In cryptography, a product cipher combines two or more transformations in a manner intending that the resulting cipher is more secure than the individual...
    2 KB (278 words) - 23:01, 22 April 2023
  • Thumbnail for RC6
    RC6 (redirect from RC6 cipher)
    In cryptography, RC6 (Rivest cipher 6) is a symmetric key block cipher derived from RC5. It was designed by Ron Rivest, Matt Robshaw, Ray Sidney, and...
    7 KB (732 words) - 12:36, 23 May 2025
  • Thumbnail for Xor–encrypt–xor
    The xor–encrypt–xor (XEX) is a (tweakable) mode of operation of a block cipher. In tweaked-codebook mode with ciphertext stealing (XTS mode), it is one...
    4 KB (454 words) - 10:59, 19 June 2024
  • Adiantum is a cipher composition for disk encryption. It uses a new cipher construction called HBSH (hash, block cipher, stream cipher, hash), specifically...
    4 KB (317 words) - 21:37, 11 February 2025
  • The Advanced Encryption Standard (AES), the symmetric block cipher ratified as a standard by National Institute of Standards and Technology of the United...
    10 KB (1,040 words) - 10:14, 4 January 2025
  • Galois/Counter Mode (category Block cipher modes of operation)
    Mode (GCM) is a mode of operation for symmetric-key cryptographic block ciphers which is widely adopted for its performance. GCM throughput rates for state-of-the-art...
    23 KB (3,051 words) - 20:21, 24 March 2025
  • The BEAR and LION block ciphers were invented by Ross Anderson and Eli Biham by combining a stream cipher and a cryptographic hash function. The algorithms...
    2 KB (204 words) - 21:33, 11 February 2025
  • In cryptography, Skipjack is a block cipher—an algorithm for encryption—developed by the U.S. National Security Agency (NSA). Initially classified, it...
    12 KB (1,106 words) - 03:22, 29 November 2024
  • technique has been applied to SAFER, IDEA, Skipjack, E2, Twofish, Camellia, CRYPTON, and even the stream cipher Salsa20. Lars Knudsen (1994). Truncated and Higher...
    4 KB (318 words) - 10:15, 4 January 2025
  • report, Sincerely yours, etc. The primary use of padding with classical ciphers is to prevent the cryptanalyst from using that predictability to find known...
    23 KB (3,307 words) - 14:54, 5 February 2025
  • Thumbnail for Twofish
    Twofish (redirect from Twofish (cipher))
    In cryptography, Twofish is a symmetric key block cipher with a block size of 128 bits and key sizes up to 256 bits. It was one of the five finalists of...
    9 KB (827 words) - 14:21, 3 April 2025
  • Thumbnail for RC5
    RC5 (redirect from RC5 cipher)
    is a symmetric-key block cipher notable for its simplicity. Designed by Ronald Rivest in 1994, RC stands for "Rivest Cipher", or alternatively, "Ron's...
    12 KB (1,465 words) - 18:48, 18 February 2025
  • The Hasty Pudding cipher (HPC) is a variable-block-size block cipher designed by Richard Schroeppel, which was an unsuccessful candidate in the competition...
    11 KB (1,315 words) - 04:17, 28 November 2024
  • In cryptography, Square (sometimes written SQUARE) is a block cipher invented by Joan Daemen and Vincent Rijmen. The design, published in 1997, is a forerunner...
    2 KB (125 words) - 03:34, 28 April 2024