From 8c056aebe10c8c56f7c25889780b04e00f9ca00b Mon Sep 17 00:00:00 2001 From: Gustav Simonsson Date: Wed, 4 Feb 2015 17:06:06 +0100 Subject: Set both key generation and ECDSA nonce to use mixed entropy * Move random entropy functions to new package randentropy * Add function to get n bytes entropy where up to first 32 bytes are mixed with OS entropy sources --- crypto/secp256k1/secp256.go | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'crypto/secp256k1') diff --git a/crypto/secp256k1/secp256.go b/crypto/secp256k1/secp256.go index c01598b84..c1e37629e 100644 --- a/crypto/secp256k1/secp256.go +++ b/crypto/secp256k1/secp256.go @@ -15,6 +15,7 @@ import "C" import ( "bytes" "errors" + "github.com/ethereum/go-ethereum/crypto/randentropy" "unsafe" ) @@ -68,7 +69,7 @@ func GenerateKeyPair() ([]byte, []byte) { const seckey_len = 32 var pubkey []byte = make([]byte, pubkey_len) - var seckey []byte = RandByte(seckey_len) + var seckey []byte = randentropy.GetEntropyMixed(seckey_len) var pubkey_ptr *C.uchar = (*C.uchar)(unsafe.Pointer(&pubkey[0])) var seckey_ptr *C.uchar = (*C.uchar)(unsafe.Pointer(&seckey[0])) @@ -124,7 +125,7 @@ int secp256k1_ecdsa_sign_compact(const unsigned char *msg, int msglen, */ func Sign(msg []byte, seckey []byte) ([]byte, error) { - nonce := RandByte(32) + nonce := randentropy.GetEntropyMixed(32) var sig []byte = make([]byte, 65) var recid C.int -- cgit v1.2.3