点击数：29
package service
import (
"crypto/ed25519"
sr25519 "github.com/ChainSafe/go-schnorrkel"
"github.com/subscan-explorer/subscan-common/core/log"
)
var SigningContext = []byte("substrate")
func (s *Service) verifyWeb3(pub, nounce, sig, encryption string) bool {
switch encryption {
case "ed25519":
return ed25519.Verify([]byte(pub), []byte(nounce), []byte(sig))
case "sr25519":
return verifiySigsSr25519(sig, pub, nounce)
}
return false
}
//only for pokadot web3.js
func verifiySigsSr25519(sigs, pubkey, message string) bool {
var err error
pub, err := sr25519.NewPublicKeyFromHex(pubkey)
if err != nil {
log.Errorf("NewPublicKeyFromHex error %v", err)
return false
}
sig, err := sr25519.NewSignatureFromHex(sigs)
if err != nil {
log.Errorf("NewSignatureFromHex error %v", err)
return false
}
msgStr := "<Bytes>" + message + "</Bytes>"
msg := []byte(msgStr)
transcript := sr25519.NewSigningContext(SigningContext, msg)
ok, err := pub.Verify(sig, transcript)
if err != nil {
log.Errorf("verifiySigsSr25519 Verify error %v", err)
return false
}
if !ok {
log.Error("failed to verify signature")
return false
}
return true
}
