Americký NIST vydal dv? publikace SP 800-106 (Randomized Hashing for Digital Signatures) a SP 800-107 (Recommendation for Using Approved Hash Algorithms.)
23.02.2009
Special Publication 800-106 This Recommendation provides a technique to randomize the input messages to hash functions prior to the generation of digital signatures to strengthen security of the digital signatures
Special Publication 800-107 This Recommendation provides guidance on using the Approved hash algorithms in digital signatures applications, Keyed-hash Message Authentication Codes (HMACs), key derivation functions (KDFs) and random number generators.