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crypto: add btcec fallback for sign/recover without cgo (#3680)

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* vendor: add github.com/btcsuite/btcd/btcec

* crypto: add btcec fallback for sign/recover without cgo

This commit adds a non-cgo fallback implementation of secp256k1
operations.

* crypto, core/vm: remove wrappers for sha256, ripemd160
This commit is contained in:
Felix Lange
2017-02-18 09:24:12 +01:00
committed by Jeffrey Wilcke
parent bf21549faa
commit 9b0af51386
32 changed files with 3929 additions and 224 deletions
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6
crypto/ecies/asn1.go
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@ -42,7 +42,7 @@ import (
"hash"
"math/big"
"github.com/ethereum/go-ethereum/crypto/secp256k1"
ethcrypto "github.com/ethereum/go-ethereum/crypto"
)
var (
@ -120,7 +120,7 @@ func (curve secgNamedCurve) Equal(curve2 secgNamedCurve) bool {
func namedCurveFromOID(curve secgNamedCurve) elliptic.Curve {
switch {
case curve.Equal(secgNamedCurveS256):
return secp256k1.S256()
return ethcrypto.S256()
case curve.Equal(secgNamedCurveP256):
return elliptic.P256()
case curve.Equal(secgNamedCurveP384):
@ -139,7 +139,7 @@ func oidFromNamedCurve(curve elliptic.Curve) (secgNamedCurve, bool) {
return secgNamedCurveP384, true
case elliptic.P521():
return secgNamedCurveP521, true
case secp256k1.S256():
case ethcrypto.S256():
return secgNamedCurveS256, true
}