gaspersic/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

crypto, pow, vendor: hash optimizations, mmap ethash

Browse Source
This commit is contained in:
Péter Szilágyi
2017-03-07 20:05:54 +02:00
committed by Felix Lange
parent b7d93500f1
commit 5c8fa6ae1a
12 changed files with 772 additions and 203 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
crypto/crypto.go
View File

@ -37,10 +37,6 @@ var (
secp256k1_halfN = new(big.Int).Div(secp256k1_N, big.NewInt(2))
)
// Hasher is a repetitive hasher allowing the same hash data structures to be
// reused between hash runs instead of requiring new ones to be created.
type Hasher func(data []byte) []byte
// Keccak256 calculates and returns the Keccak256 hash of the input data.
func Keccak256(data ...[]byte) []byte {
d := sha3.NewKeccak256()
@ -61,22 +57,6 @@ func Keccak256Hash(data ...[]byte) (h common.Hash) {
return h
}
// Keccak256Hasher creates a repetitive Keccak256 hasher, allowing the same hash
// data structures to be reused between hash runs instead of requiring new ones
// to be created.
//
// The returned function is not thread safe!
func Keccak256Hasher() Hasher {
hasher := sha3.NewKeccak256()
return func(data []byte) []byte {
hasher.Write(data)
result := hasher.Sum(nil)
hasher.Reset()
return result
}
}
// Keccak512 calculates and returns the Keccak512 hash of the input data.
func Keccak512(data ...[]byte) []byte {
d := sha3.NewKeccak512()
@ -86,22 +66,6 @@ func Keccak512(data ...[]byte) []byte {
return d.Sum(nil)
}
// Keccak512Hasher creates a repetitive Keccak512 hasher, allowing the same hash
// data structures to be reused between hash runs instead of requiring new ones
// to be created.
//
// The returned function is not thread safe!
func Keccak512Hasher() Hasher {
hasher := sha3.NewKeccak512()
return func(data []byte) []byte {
hasher.Write(data)
result := hasher.Sum(nil)
hasher.Reset()
return result
}
}
// Deprecated: For backward compatibility as other packages depend on these
func Sha3Hash(data ...[]byte) common.Hash { return Keccak256Hash(data...) }