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crypto: make it easier to run Sha3 on multiple inputs

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crypto.Sha3(append(foo, bar)) --> crypto.Sha3(foo, bar)
crypto.Sha3([]byte{}) --> crypto.Sha3()
This commit is contained in:
Felix Lange 2015-01-27 14:29:33 +01:00
parent 2e48d39fc7
commit 410b35e913
2 changed files with 5 additions and 4 deletions
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7
crypto/crypto.go
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@ -27,10 +27,11 @@ func init() {
ecies.AddParamsForCurve(S256(), ecies.ECIES_AES128_SHA256)
}
func Sha3(data []byte) []byte {
func Sha3(data ...[]byte) []byte {
d := sha3.NewKeccak256()
d.Write(data)
for _, b := range data {
d.Write(b)
}
return d.Sum(nil)
}

2
crypto/crypto_test.go
View File

@ -18,7 +18,7 @@ import (
func TestSha3(t *testing.T) {
msg := []byte("abc")
exp, _ := hex.DecodeString("4e03657aea45a94fc7d47ba826c8d667c0d1e6e33a64a036ec44f58fa12d6c45")
checkhash(t, "Sha3-256", Sha3, msg, exp)
checkhash(t, "Sha3-256", func(in []byte) []byte { return Sha3(in) }, msg, exp)
}
func TestSha256(t *testing.T) {