Hash algorithms which map arbitrarily long inputs into a fixed-size output such that it is very difficult (computationally infeasible) to find two different hash inputs that produce the same output. Such algorithms are an essential part of the process of producing fixed- size digital signatures that can both authenticate the signer and provide for data integrity checking (detection of input modification after signature). Source: NIST SP 800-49
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Hash algorithms which map arbitrarily long inputs into a fixed-size output such that it is very difficult (computationally infeasible) to find two different hash inputs that produce the same output. Such algorithms are an essential part of the process of producing fixed- size digital signatures that can both authenticate the signer and provide for data integrity checking (detection of input modification after signature). Source: NIST SP 800-49
Cite this term
Election Security Glossary. (2026). One Way Hash Algorithm. In Election Security Glossary. Retrieved September 3, 2026, from https://electionsecurityglossary.com/glossary/one-way-hash-algorithm
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