enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Commercial National Security Algorithm Suite - Wikipedia

    en.wikipedia.org/wiki/Commercial_National...

    The Commercial National Security Algorithm Suite (CNSA) is a set of cryptographic algorithms promulgated by the National Security Agency as a replacement for NSA Suite B Cryptography algorithms. It serves as the cryptographic base to protect US National Security Systems information up to the top secret level, while the NSA plans for a ...

  3. Cryptographic hash function - Wikipedia

    en.wikipedia.org/wiki/Cryptographic_hash_function

    Most cryptographic hash functions are designed to take a string of any length as input and produce a fixed-length hash value. A cryptographic hash function must be able to withstand all known types of cryptanalytic attack. In theoretical cryptography, the security level of a cryptographic hash function has been defined using the following ...

  4. Merkle–Damgård construction - Wikipedia

    en.wikipedia.org/wiki/Merkle–Damgård_construction

    In cryptography, the Merkle–Damgård construction or Merkle–Damgård hash function is a method of building collision-resistant cryptographic hash functions from collision-resistant one-way compression functions. [1]: 145 This construction was used in the design of many popular hash algorithms such as MD5, SHA-1, and SHA-2.

  5. Security of cryptographic hash functions - Wikipedia

    en.wikipedia.org/wiki/Security_of_cryptographic...

    Knapsack-based hash functions—a family of hash functions based on the knapsack problem. The Zémor-Tillich hash function—a family of hash functions that relies on the arithmetic of the group of matrices SL 2. Finding collisions is at least as difficult as finding factorization of certain elements in this group.

  6. UMAC (cryptography) - Wikipedia

    en.wikipedia.org/wiki/UMAC_(cryptography)

    In cryptography, a universal hashing message authentication code, or UMAC, is a message authentication code (MAC) calculated using universal hashing, which involves choosing a hash function from a class of hash functions according to some secret (random) process and applying it to the message. The resulting digest or fingerprint is then ...

  7. Secure Hash Algorithms - Wikipedia

    en.wikipedia.org/wiki/Secure_Hash_Algorithms

    The Secure Hash Algorithms are a family of cryptographic hash functions published by the National Institute of Standards and Technology (NIST) as a U.S. Federal Information Processing Standard (FIPS), including: SHA-0: A retronym applied to the original version of the 160-bit hash function published in 1993 under the name "SHA". It was ...

  8. Whirlpool (hash function) - Wikipedia

    en.wikipedia.org/wiki/Whirlpool_(hash_function)

    The Whirlpool hash function is a Merkle–Damgård construction based on an AES-like block cipher W in Miyaguchi–Preneel mode. [2] The block cipher W consists of an 8×8 state matrix of bytes, for a total of 512 bits. The encryption process consists of updating the state with four round functions over 10 rounds.

  9. HAIFA construction - Wikipedia

    en.wikipedia.org/wiki/HAIFA_construction

    The HAIFA construction (hash iterative framework) is a cryptographic structure used in the design of hash functions. It is one of the modern alternatives to the Merkle–Damgård construction, [1] avoiding its weaknesses like length extension attacks. The construction was designed by Eli Biham and Orr Dunkelman in 2007.