Merge pull request #2242 from jimenezrick/upstream-crypto

Closes #2241: Use Keccak-256 from golang.org/x/crypto/sha3 and mention explicitly

3 files changed, 5 insertions, 5 deletions

diff --git a/whisper/envelope.go b/whisper/envelope.go
index b231c6b44..97d489b96 100644
--- a/whisper/envelope.go
+++ b/whisper/envelope.go
@@ -66,7 +66,7 @@ func (self *Envelope) Seal(pow time.Duration) {
 		for i := 0; i < 1024; i++ {
 			binary.BigEndian.PutUint32(d[60:], nonce)
 
-			firstBit := common.FirstBitSet(common.BigD(crypto.Sha3(d)))
+			firstBit := common.FirstBitSet(common.BigD(crypto.Keccak256(d)))
 			if firstBit > bestBit {
 				self.Nonce, bestBit = nonce, firstBit
 			}
@@ -123,7 +123,7 @@ func (self *Envelope) Open(key *ecdsa.PrivateKey) (msg *Message, err error) {
 func (self *Envelope) Hash() common.Hash {
 	if (self.hash == common.Hash{}) {
 		enc, _ := rlp.EncodeToBytes(self)
-		self.hash = crypto.Sha3Hash(enc)
+		self.hash = crypto.Keccak256Hash(enc)
 	}
 	return self.hash
 }
@@ -142,6 +142,6 @@ func (self *Envelope) DecodeRLP(s *rlp.Stream) error {
 	if err := rlp.DecodeBytes(raw, (*rlpenv)(self)); err != nil {
 		return err
 	}
-	self.hash = crypto.Sha3Hash(raw)
+	self.hash = crypto.Keccak256Hash(raw)
 	return nil
 }
diff --git a/whisper/message.go b/whisper/message.go
index 506f142ed..f05b5d8b5 100644
--- a/whisper/message.go
+++ b/whisper/message.go
@@ -146,7 +146,7 @@ func (self *Message) decrypt(key *ecdsa.PrivateKey) error {
 
 // hash calculates the SHA3 checksum of the message flags and payload.
 func (self *Message) hash() []byte {
-	return crypto.Sha3(append([]byte{self.Flags}, self.Payload...))
+	return crypto.Keccak256(append([]byte{self.Flags}, self.Payload...))
 }
 
 // bytes flattens the message contents (flags, signature and payload) into a
diff --git a/whisper/topic.go b/whisper/topic.go
index 7ac3e8dc1..d37eb25ee 100644
--- a/whisper/topic.go
+++ b/whisper/topic.go
@@ -31,7 +31,7 @@ type Topic [4]byte
 // Note, empty topics are considered the wildcard, and cannot be used in messages.
 func NewTopic(data []byte) Topic {
 	prefix := [4]byte{}
-	copy(prefix[:], crypto.Sha3(data)[:4])
+	copy(prefix[:], crypto.Keccak256(data)[:4])
 	return Topic(prefix)
 }