fix: register key type PubKeySecp256k1eth

Author: MattKetmo

pkg/crypto/secp256k1_eth.go

@@ -0,0 +1,55 @@
+package crypto
+
+import (
+	"bytes"
+	"fmt"
+
+	"github.com/cometbft/cometbft/crypto"
+	"github.com/cometbft/cometbft/crypto/tmhash"
+	cmtjson "github.com/cometbft/cometbft/libs/json"
+)
+
+const (
+	Secp256k1ethPubKeyName = "cometbft/PubKeySecp256k1eth"
+)
+
+func init() {
+	cmtjson.RegisterType(Secp256k1ethPubKey{}, Secp256k1ethPubKeyName)
+}
+
+var _ crypto.PubKey = Secp256k1ethPubKey{}
+
+type Secp256k1ethPubKey []byte
+
+// Address is the SHA256-20 of the raw pubkey bytes.
+func (pubKey Secp256k1ethPubKey) Address() crypto.Address {
+	// if len(pubKey) != PubKeySize {
+	// 	panic("pubkey is incorrect size")
+	// }
+	return crypto.Address(tmhash.SumTruncated(pubKey))
+}
+
+// Bytes returns the PubKey byte format.
+func (pubKey Secp256k1ethPubKey) Bytes() []byte {
+	return []byte(pubKey)
+}
+
+func (pubKey Secp256k1ethPubKey) VerifySignature(msg []byte, sig []byte) bool {
+	return false
+}
+
+func (pubKey Secp256k1ethPubKey) String() string {
+	return fmt.Sprintf("PubKeySecp256k1eth_381{%X}", []byte(pubKey))
+}
+
+func (Secp256k1ethPubKey) Type() string {
+	return "Secp256k1eth_381"
+}
+
+func (pubKey Secp256k1ethPubKey) Equals(other crypto.PubKey) bool {
+	if otherEd, ok := other.(Secp256k1ethPubKey); ok {
+		return bytes.Equal(pubKey[:], otherEd[:])
+	}
+
+	return false
+}