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pow/ezp: use common.Hash

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This commit is contained in:
Felix Lange 2015-03-17 12:01:21 +01:00
parent 27f7aa0163
commit 65eee2006d
1 changed files with 4 additions and 7 deletions
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11
pow/ezp/pow.go
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@ -6,8 +6,8 @@ import (
"math/rand" "math/rand"
"time" "time"
"github.com/ethereum/go-ethereum/crypto/sha3"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto/sha3"
"github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/pow" "github.com/ethereum/go-ethereum/pow"
) )
@ -83,17 +83,14 @@ func (pow *EasyPow) Verify(block pow.Block) bool {
return Verify(block) return Verify(block)
} }
func verify(hash []byte, diff *big.Int, nonce uint64) bool { func verify(hash common.Hash, diff *big.Int, nonce uint64) bool {
sha := sha3.NewKeccak256() sha := sha3.NewKeccak256()
n := make([]byte, 8) n := make([]byte, 8)
binary.PutUvarint(n, nonce) binary.PutUvarint(n, nonce)
d := append(hash, n...) sha.Write(n)
sha.Write(d) sha.Write(hash[:])
verification := new(big.Int).Div(common.BigPow(2, 256), diff) verification := new(big.Int).Div(common.BigPow(2, 256), diff)
res := common.BigD(sha.Sum(nil)) res := common.BigD(sha.Sum(nil))
return res.Cmp(verification) <= 0 return res.Cmp(verification) <= 0
} }