• Thumbnail for Key derivation function
    cryptography, a key derivation function (KDF) is a cryptographic algorithm that derives one or more secret keys from a secret value such as a master key, a password...
    13 KB (1,645 words) - 14:47, 4 August 2024
  • PBKDF2 (category Key derivation functions)
    cryptography, PBKDF1 and PBKDF2 (Password-Based Key Derivation Function 1 and 2) are key derivation functions with a sliding computational cost, used to reduce...
    13 KB (1,341 words) - 15:37, 30 May 2024
  • Thumbnail for HMAC
    of a message. An HMAC is a type of keyed hash function that can also be used in a key derivation scheme or a key stretching scheme. HMAC can provide...
    18 KB (2,300 words) - 16:46, 5 August 2024
  • the key derivation system to go unaltered and should choose an appropriate number of hashes for the lifespan of the system). CPU-bound hash functions are...
    14 KB (1,817 words) - 16:14, 17 July 2024
  • Thumbnail for Brute-force attack
    attempt to guess the key which is typically created from the password using a key derivation function. This is known as an exhaustive key search. This approach...
    21 KB (2,250 words) - 15:26, 19 July 2024
  • common defense against this attack is to compute the hashes using a key derivation function that adds a "salt" to each password before hashing it, with different...
    24 KB (3,446 words) - 08:05, 23 June 2024
  • a key derivation function NANO, a cryptocurrency, uses BLAKE2b in the proof of work, for hashing digital signatures and as a key derivation function Polkadot...
    30 KB (2,848 words) - 08:36, 2 July 2024
  • deterministic algorithm called a key derivation function (KDF) uses a password to generate the secure cryptographic keying material to compensate for the...
    12 KB (1,496 words) - 00:10, 31 May 2024
  • a key from shared secret, the key derivation function is typically used. Such systems almost always use symmetric key cryptographic algorithms. The term...
    3 KB (410 words) - 18:43, 18 July 2024
  • Scrypt (category Key derivation functions)
    cryptography, scrypt (pronounced "ess crypt") is a password-based key derivation function created by Colin Percival in March 2009, originally for the Tarsnap...
    17 KB (1,655 words) - 22:19, 24 May 2024
  • a Password-Based Key Derivation Function (PBKDF) with an approved Pseudorandom Function such as HMAC with SHA-3 as the hash function of the HMAC. The...
    8 KB (1,061 words) - 13:08, 12 July 2024
  • necessary session keys are generated by applying the key derivation function. Periodic application of the key derivation function prevents an attacker...
    8 KB (1,132 words) - 15:59, 23 July 2024
  • Argon2 (category Key derivation functions)
    Argon2 is a key derivation function that was selected as the winner of the 2015 Password Hashing Competition. It was designed by Alex Biryukov, Daniel...
    14 KB (1,491 words) - 21:00, 3 April 2024
  • Bcrypt (category Key derivation functions)
    password-based key derivation functions - where the output is then used for the purpose of password hashing rather than just key derivation. Password hashing...
    26 KB (2,753 words) - 04:19, 2 July 2024
  • HKDF (category Key derivation functions)
    HKDF is a simple key derivation function (KDF) based on the HMAC message authentication code. It was initially proposed by its authors as a building block...
    6 KB (697 words) - 14:51, 26 July 2024
  • Thumbnail for Double Ratchet Algorithm
    based on the Diffie–Hellman key exchange (DH) and a ratchet based on a key derivation function (KDF), such as a hash function, and is therefore called a...
    15 KB (1,377 words) - 21:57, 2 July 2024
  • Elliptic-curve Diffie–Hellman (category Key-agreement protocols)
    protocols based on ECDH derive a symmetric key from x k {\displaystyle x_{k}} using some hash-based key derivation function. The shared secret calculated...
    13 KB (2,044 words) - 09:16, 27 May 2024
  • Yescrypt (category Key derivation functions)
    cryptographic key derivation function function used for password hashing on Fedora Linux, Debian, Ubuntu, and Arch Linux. The function is more resistant...
    2 KB (102 words) - 08:19, 12 July 2024
  • Shared secret (category Key management)
    to a key derivation function to produce one or more keys to use for encryption and/or MACing of messages. To make unique session and message keys the shared...
    2 KB (239 words) - 22:37, 3 December 2023
  • g^{y}} . Alice then computes a symmetric key k {\displaystyle k} using this information and a key derivation function (KDF) as follows: k = KDF ( g x y ) {\displaystyle...
    6 KB (965 words) - 20:25, 27 February 2023
  • featuring resilience to header corruption, and using the Argon2 key derivation function by default, whereas LUKS1 uses PBKDF2. Conversion between both...
    14 KB (1,175 words) - 01:55, 8 August 2024
  • is rated secure against preimage attacks. Special hashes called key derivation functions have been created to slow searches. See Password cracking. For...
    7 KB (895 words) - 15:44, 13 April 2024
  • Crypt (C) (category Key derivation functions)
    stored in a text file. More formally, crypt provides cryptographic key derivation functions for password validation and storage on Unix systems. There is an...
    28 KB (3,039 words) - 21:59, 6 July 2024
  • authentication. The simplest such pairwise independent hash function is defined by the random key, key = (a, b), and the MAC tag for a message m is computed...
    15 KB (1,790 words) - 04:23, 31 July 2024
  • Thumbnail for Cryptographic hash function
    set. Because cryptographic hash functions are typically designed to be computed quickly, special key derivation functions that require greater computing...
    48 KB (6,228 words) - 21:37, 8 August 2024
  • Thumbnail for Passwd
    user's password. The password entered by the user is run through a key derivation function to create a hashed version of the new password, which is saved...
    15 KB (1,934 words) - 15:30, 3 August 2024
  • 15 December 2018 – via GitHub. "Ruby C extension for the AES-CMAC keyed hash function (RFC 4493): louismullie/cmac-rb". 4 May 2016 – via GitHub. RFC 4493...
    8 KB (840 words) - 12:10, 18 February 2024
  • other. For example, each encryption key can be generated from the underlying key material using a key derivation function. For example, a replacement for...
    5 KB (688 words) - 07:27, 20 November 2023
  • group. A signature scheme consists of three functions: generate, sign, and verify. Key generation The key generation algorithm selects a random integer...
    8 KB (823 words) - 08:44, 16 August 2024
  • Thumbnail for Cryptography
    are not limited to: cryptographic keys, cryptographic hash function, asymmetric (public key) encryption, Multi-Factor Authentication (MFA), End-to-End...
    98 KB (10,713 words) - 04:04, 16 August 2024