US Secure Hash Algorithm 1 (SHA1)

URI: https://gptkb.org/entity/US_Secure_Hash_Algorithm_1_(SHA1)
GPTKB entity
Statements (34)
Predicate Object
gptkbp:instanceOf hash function
gptkbp:abbreviation gptkb:SHA-1
gptkbp:block 512 bits
gptkbp:category hash function
gptkbp:collisionAttack SHAttered
gptkbp:collisionFound true
gptkbp:collisionYear 2005
gptkbp:designedBy gptkb:National_Security_Agency
gptkbp:digestSize 160 bits
< 2^64 bits
gptkbp:firstPracticalCollisionYear 2017
gptkbp:format gptkb:base64
hexadecimal
https://www.w3.org/2000/01/rdf-schema#label US Secure Hash Algorithm 1 (SHA1)
gptkbp:introducedIn 1995
gptkbp:notRecommendedFor gptkb:IETF
gptkb:NIST
gptkbp:numberOfRounds 80
gptkbp:predecessor gptkb:SHA-0
gptkbp:publishedBy gptkb:National_Institute_of_Standards_and_Technology
gptkbp:standardizedBy gptkb:FIPS_PUB_180-1
gptkbp:status deprecated
gptkbp:successor gptkb:SHA-2
gptkbp:supportsAlgorithm gptkb:Merkle–Damgård_construction
gptkbp:usedIn gptkb:Git
gptkb:PGP
gptkb:SSL
TLS
digital signatures
X.509 certificates
gptkbp:vulnerableTo collision attacks
chosen-prefix collision attacks
gptkbp:bfsParent gptkb:RFC_3174
gptkbp:bfsLayer 7