Preimage resistance

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Definition(s):

An expected property of a cryptographic hash function such that, given a randomly chosen message digest, message_digest, it is computationally infeasible to find a preimage of the message_digest, See “Preimage”.
Source(s):
NIST SP 800-106

An expected property of a hash function such that, given a randomly chosen message digest, message_digest, it is computationally infeasible to find a preimage of the message_digest, See “Preimage”.
Source(s):
NIST SP 800-107 Rev. 1

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