{
 "id": "sha-1",
 "name": "SHA-1",
 "category": "other",
 "identifiers": {
  "extensions": [
   "sha1"
  ],
  "puid": [
   "fmt/992"
  ]
 },
 "status": "unknown",
 "summary": "SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function designed by the United States National Security Agency and is a U.S. Federal Information Processing Standard published by the United States NIST. SHA-1 produces a 160-bit (20-byte) hash value. It can be used as a checksum to verify data integrity. The SHA1 file is a text document which contains single or multiple SHA1 values.",
 "projects": [
  {
   "name": "File Formats Wiki",
   "url": "http://fileformats.archiveteam.org/wiki/SHA-1",
   "kind": "wiki"
  },
  {
   "name": "PRONOM fmt/992",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/992",
   "kind": "format-doc"
  }
 ],
 "provenance": {
  "sources": [
   "ffw",
   "pronom"
  ]
 },
 "updated": "2026-10-24",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "tools": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}