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Second preimage resistance

Definitions:

  An expected property of a cryptographic hash function whereby it is computationally infeasible to find a second preimage of a known message digest, See “Second preimage”.
Sources:
NIST SP 800-106

  An expected property of a hash function whereby it is computationally infeasible to find a second preimage of a known message digest, See “Second preimage”.
Sources:
NIST SP 800-107 Rev. 1