crypto/sha3: Export Keccak-256 hash function

jimenezrick · jimenezrick · commit c20d6e5e4ed8 · 2016-02-21T22:34:34.000Z
This hash function is slightly different from the standarized NIST SHA-3
as both of them use different domain separation bits.
diff --git a/crypto/sha3/hashes.go b/crypto/sha3/hashes.go
@@ -12,6 +12,9 @@ import (
 	"hash"
 )
 
+// NewKeccak256 creates a new Keccak-256 hash.
+func NewKeccak256() hash.Hash { return &state{rate: 136, outputLen: 32, dsbyte: 0x01} }
+
 // New224 creates a new SHA3-224 hash.
 // Its generic security strength is 224 bits against preimage attacks,
 // and 112 bits against collision attacks.

Original file line number	Diff line number	Diff line change
`@@ -12,6 +12,9 @@ import (`
`12`	`12`	`"hash"`
`13`	`13`	`)`
`14`	`14`
	`15`	`+// NewKeccak256 creates a new Keccak-256 hash.`
	`16`	`+func NewKeccak256() hash.Hash { return &state{rate: 136, outputLen: 32, dsbyte: 0x01} }`
	`17`	`+`
`15`	`18`	`// New224 creates a new SHA3-224 hash.`
`16`	`19`	`// Its generic security strength is 224 bits against preimage attacks,`
`17`	`20`	`// and 112 bits against collision attacks.`