U.S. flag   An unofficial archive of your favorite United States government website
Dot gov

Official websites do not use .rip
We are an unofficial archive, replace .rip by .gov in the URL to access the official website. Access our document index here.

Https

We are building a provable archive!
A lock (Dot gov) or https:// don't prove our archive is authentic, only that you securely accessed it. Note that we are working to fix that :)

Computer Security Resource Center

Computer Security Resource Center

This is an archive
(replace .gov by .rip)
    Glossary
A  |  B  |  C  |  D  |  E  |  F  |  G  |  H  |  I  |  J  |  K  |  L  |  M  |  N  |  O  |  P  |  Q  |  R  |  S  |  T  |  U  |  V  |  W  |  X  |  Y  |  Z

Preimage resistance

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