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P5-crypt-pbkdf2
Jul 20, 2023
PBKDF2 password hashing algorithm
PBKDF2 is a secure password hashing algorithm that uses the techniques of “key strengthening” to make the complexity of a brute-force attack arbitrarily high. PBKDF2 uses any other cryptographic hash or cipher by convention, usually HMAC-SHA1, but CryptPBKDF2 is fully pluggable, and allows for an arbitrary number of iterations of the hashing function, and a nearly unlimited output hash size up to 2**32 - 1 times the size of the output of the backend hash. The hash is salted, as any password hash should be, and the salt may also be of arbitrary size.
See also RFC2898, PKCS#5 version 2.0 http//tools.ietf.org/html/rfc2898
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