• Thumbnail for SHACAL
    SHACAL-1 (originally simply SHACAL) is a 160-bit block cipher based on SHA-1, and supports keys from 128-bit to 512-bit. SHACAL-2 is a 256-bit block cipher...
    9 KB (903 words) - 07:08, 27 April 2022
  • Mitsubishi Electric SHACAL-2: Gemplus WHIRLPOOL: Scopus Tecnologia S.A. and K.U.Leuven SHA-256*, SHA-384* and SHA-512*: NSA, (US FIPS 180-2) UMAC: Intel Corp...
    5 KB (537 words) - 12:41, 17 October 2024
  • block; AES finalist by Ross Anderson, Eli Biham, Lars Knudsen SHACAL-1 – 160-bit block SHACAL-2 – 256-bit block cypher; NESSIE selection Gemplus (France)...
    20 KB (1,899 words) - 15:57, 22 November 2024
  • CRYPTON, Zodiac, Hierocrypt-3, TEA, XTEA, Mini-AES, ARIA, Camellia, and SHACAL-2.[citation needed] Biham, Biryukov and Shamir also presented a relatively...
    10 KB (850 words) - 15:40, 7 December 2024
  • seven open-source security libraries with 15 block ciphers, Crypto++ 5.5.2 was the top-performing library under two block ciphers and did not rank below...
    19 KB (1,341 words) - 23:57, 18 November 2024
  • key-schedule state. This permutation will ignore 8 bits below: Permuted Choice 2 "PC-2" ignored bits 9, 18, 22, 25, 35, 38, 43, 54. This table lists the eight...
    11 KB (600 words) - 11:47, 6 November 2023
  • for the next message is insecure (for example, this method was used by SSL 2.0). If an attacker knows the IV (or the previous block of ciphertext) before...
    14 KB (1,797 words) - 08:53, 7 September 2024
  • Thumbnail for Cryptography
    NIST. National Institute of Standards and Technology. 2 October 2012. Archived from the original on 2 April 2015. Retrieved 26 March 2015. Diffie, Whitfield;...
    99 KB (10,936 words) - 03:34, 14 December 2024
  • Thumbnail for Commercial National Security Algorithm Suite
    Diffie–Hellman and Elliptic Curve Digital Signature Algorithm with curve P-384 SHA-2 with 384 bits, Diffie–Hellman key exchange with a minimum 3072-bit modulus...
    9 KB (635 words) - 11:42, 28 November 2024
  • Thumbnail for Symmetric-key algorithm
    non-repudiation purposes except by involving additional parties. See the ISO/IEC 13888-2 standard. Another application is to build hash functions from block ciphers...
    15 KB (1,544 words) - 12:46, 16 December 2024
  • incorporated. The SHA hash functions have been used for the basis of the SHACAL block ciphers. Revision control systems such as Git, Mercurial, and Monotone...
    50 KB (5,744 words) - 19:28, 21 December 2024
  • Thumbnail for Data Encryption Standard
    2 {\displaystyle K_{2}} : E K 1 ( E K 2 ( P ) ) = P {\displaystyle E_{K_{1}}(E_{K_{2}}(P))=P} or equivalently, E K 2 = D K 1 . {\displaystyle E_{K_{2}}=D_{K_{1}}...
    59 KB (6,543 words) - 16:59, 10 November 2024
  • Thumbnail for Cryptographic hash function
    conventional mode of operation, without the same security guarantees; for example, SHACAL, BEAR and LION. Pseudorandom number generators (PRNGs) can be built using...
    48 KB (6,237 words) - 18:02, 5 December 2024
  • Thumbnail for Triple DES
    {\displaystyle 2^{n+1}} steps, instead of the 2 2 n {\displaystyle 2^{2n}} steps one would expect from an ideally secure algorithm with 2 n {\displaystyle...
    23 KB (2,946 words) - 08:30, 25 November 2024
  • build hash functions, like SHA-1 and SHA-2 are based on block ciphers which are also used independently as SHACAL, hash functions can be used to build block...
    51 KB (6,553 words) - 03:52, 30 November 2024
  • permutation layer functions are similar to the Σ {\displaystyle \Sigma } of SHA-2. The ciphers are parameterizable by the key length k (up to 128 bits), "rate"...
    8 KB (849 words) - 09:53, 27 November 2024
  • 1 χ 2 ⋯ χ n = 1 − 2 ( X 1 ⊕ X 2 ⊕ ⋯ ⊕ X n ) = ( − 1 ) X 1 ⊕ X 2 ⊕ ⋯ ⊕ X n {\displaystyle \chi _{1}\chi _{2}\cdots \chi _{n}=1-2(X_{1}\oplus X_{2}\oplus...
    8 KB (1,445 words) - 06:28, 20 June 2024
  • connected with the (today comparatively small) block size of 64 bits. On January 2, 1997, NIST announced that they wished to choose a successor to DES to be...
    10 KB (1,040 words) - 02:50, 11 January 2024
  • implementation. Bouncy Castle Crypto Library Delphi Encryption Compendium [2] has a cross platform capable AES implementation, among implementations of...
    12 KB (1,295 words) - 02:53, 21 December 2024
  • defined over the "reverse" polynomial: x 128 + x 7 + x 2 + x + 1 {\displaystyle x^{128}+x^{7}+x^{2}+x+1} This change provides efficiency benefits on little-endian...
    4 KB (397 words) - 18:19, 16 September 2024
  • Thumbnail for Avalanche effect
    NOEKEON NUSH PRESENT Prince Q RC2 REDOC Red Pike S-1 SAFER SAVILLE SC2000 SHACAL SHARK Simon Speck Spectr-H64 Square SXAL/MBAL Threefish Treyfer UES xmx...
    5 KB (568 words) - 17:23, 14 December 2023
  • Thumbnail for Block cipher mode of operation
    for the next message is insecure (for example, this method was used by SSL 2.0). If an attacker knows the IV (or the previous block of ciphertext) before...
    52 KB (5,877 words) - 10:16, 19 December 2024
  • low_byte := x AND 0xff h := S[0][high_byte] + S[1][second_byte] return (h XOR S[2][third_byte]) + S[3][low_byte] procedure blowfish_encrypt(L, R): // Encrypts...
    18 KB (1,997 words) - 14:37, 12 December 2024
  • Thumbnail for Feistel cipher
    Permutations from Pseudorandom Functions", SIAM Journal on Computing, 17 (2): 373–386, doi:10.1137/0217022, ISSN 0097-5397. Patarin, Jacques (October...
    10 KB (1,316 words) - 23:55, 19 August 2024
  • field used is defined by the polynomial x 128 + x 7 + x 2 + x + 1 {\displaystyle x^{128}+x^{7}+x^{2}+x+1} The authentication tag is constructed by feeding...
    23 KB (3,051 words) - 13:09, 30 November 2024
  • Thumbnail for International Data Encryption Algorithm
    half-round function. To work with 16-bit words (meaning 4 inputs instead of 2 for the 64-bit block size), IDEA uses the Lai–Massey scheme twice in parallel...
    12 KB (1,499 words) - 19:07, 14 April 2024
  • security • Serge Vaudenay • Serpent (cipher) • Session key • SHACAL • Shafi Goldwasser • SHA-1 • SHA-2 • SHA-3 • Shared secret • SHARK • Shaun Wylie • Shor's...
    67 KB (2,933 words) - 12:41, 17 October 2024
  • Information Technology, CCSIT 2011, Bangalore, India, January 2-4, 2011. Proceedings, Part 2. Springer. p. 516. ISBN 978-3-642-17877-1. Buchmann, Johannes...
    10 KB (929 words) - 18:15, 28 October 2023
  • encryption step 2. Xn−1 is the same as in the encryption process. Pn−1 = Xn−1 XOR Cn−2. Exclusive-OR Xn−1 with the previous ciphertext block, Cn−2, to create...
    17 KB (2,269 words) - 14:13, 13 January 2024
  • a lower limit on the energy required to perform a computation of kT  · ln 2 per bit erased in a computation, where T is the temperature of the computing...
    21 KB (2,238 words) - 15:21, 21 November 2024