You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
851 B
48 lines
851 B
package hash
|
|
|
|
import (
|
|
"hash"
|
|
"sync"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
"golang.org/x/crypto/sha3"
|
|
)
|
|
|
|
var kec256Pool = sync.Pool{
|
|
New: func() interface{} {
|
|
return sha3.NewLegacyKeccak256()
|
|
},
|
|
}
|
|
|
|
// FromRLP hashes the RLP representation of the given object.
|
|
func FromRLP(x interface{}) (h common.Hash) {
|
|
hw := kec256Pool.Get().(hash.Hash)
|
|
defer func() {
|
|
hw.Reset()
|
|
kec256Pool.Put(hw)
|
|
}()
|
|
|
|
rlp.Encode(hw, x)
|
|
hw.Sum(h[:0])
|
|
return h
|
|
}
|
|
|
|
var sha256Pool = sync.Pool{
|
|
New: func() interface{} {
|
|
return sha3.New256()
|
|
},
|
|
}
|
|
|
|
// FromRLPNew256 hashes the RLP representation of the given object using New256
|
|
func FromRLPNew256(x interface{}) (h common.Hash) {
|
|
hw := sha256Pool.Get().(hash.Hash)
|
|
defer func() {
|
|
hw.Reset()
|
|
sha256Pool.Put(hw)
|
|
}()
|
|
|
|
rlp.Encode(hw, x)
|
|
hw.Sum(h[:0])
|
|
return h
|
|
}
|
|
|