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US Secure Hash Algorithm 1 (SHA1)
RFC 3174

Revision differences

Document history

Date By Action
2026-05-20
(System) Changed metadata: changed keywords to '['FIPS', 'federal', 'information', 'processing', 'standard']' from '[]'
2026-05-20
(System) Metadata update from RFC Editor
2026-05-20
(System)
Changed author "P. Jones": changed name from "Paul Jones" to "P. Jones", cleared country (was "Research Triangle Park, NC 27709 USA"), changed order from "1" …
Changed author "P. Jones": changed name from "Paul Jones" to "P. Jones", cleared country (was "Research Triangle Park, NC 27709 USA"), changed order from "1" to "2"
2026-05-20
(System)
Changed author "D. Eastlake 3rd": changed name from "Donald Eastlake" to "D. Eastlake 3rd", changed affiliation from "3rd" to "Motorola", cleared country (was "Milford, MA …
Changed author "D. Eastlake 3rd": changed name from "Donald Eastlake" to "D. Eastlake 3rd", changed affiliation from "3rd" to "Motorola", cleared country (was "Milford, MA 01757 USA"), changed order from "0" to "1"
2026-05-20
(System) Metadata update from RFC Editor
2020-01-21
(System) Received changes through RFC Editor sync (added Verified Errata tag)
2001-09-01
(System) RFC published