( < secure hash standard,
"turvalise räsi standard")

olemus
USA standard FIPS 180-4,
spetsifitseerib turvaliste räsialgoritmide sarja SHA

standardi tekst
https://csrc.nist.gov/csrc/media/publications/fips/180/4/final/documents/fips180-4-draft-aug2014.pdf

https://csrc.nist.gov/publications/detail/fips/180/4/final