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BLS/ostracon: using Tendermint's crypto interfaces

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* Ostracon augmented the crypto.PubKey and crypto.PrivKey interfaces
     with Verificable Random Function (VRF) proofs, which however, are
     not yet implemented (so their code was commented).
This commit is contained in:
Daniel Cason
2022-04-19 14:46:34 +02:00
parent 2bd0a6527e
commit a38aeea648
1 changed files with 13 additions and 11 deletions
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crypto/bls/ostracon/bls.go
+13 -11
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@@ -1,4 +1,4 @@
package bls
package ostracon
import (
"bytes"
@@ -10,8 +10,8 @@ import (
"github.com/herumi/bls-eth-go-binary/bls"
"github.com/line/ostracon/crypto"
"github.com/line/ostracon/crypto/tmhash"
"github.com/tendermint/tendermint/crypto"
"github.com/tendermint/tendermint/crypto/tmhash"
)
var _ crypto.PrivKey = PrivKey{}
@@ -140,10 +140,11 @@ func (privKey PrivKey) Sign(msg []byte) ([]byte, error) {
return sign.Serialize(), nil
}
// VRFProve is not supported in BLS12.
func (privKey PrivKey) VRFProve(seed []byte) (crypto.Proof, error) {
return nil, fmt.Errorf("VRF prove is not supported by the BLS12")
}
// FIXME: Type crypto.Proof not defined in Tendermint.
//// VRFProve is not supported in BLS12.
//func (privKey PrivKey) VRFProve(seed []byte) (crypto.Proof, error) {
// return nil, fmt.Errorf("VRF prove is not supported by the BLS12")
//}
// PubKey gets the corresponding public key from the private key.
func (privKey PrivKey) PubKey() crypto.PubKey {
@@ -211,10 +212,11 @@ func (pubKey PubKey) VerifySignature(msg []byte, sig []byte) bool {
return blsSign.VerifyHash(&blsPubKey, hash[:])
}
// VRFVerify is not supported in BLS12.
func (pubKey PubKey) VRFVerify(proof crypto.Proof, seed []byte) (crypto.Output, error) {
return nil, fmt.Errorf("VRF verify is not supported by the BLS12")
}
// FIXME: Types crypto.Proof and crypto.Output not defined in Tendermint.
//// VRFVerify is not supported in BLS12.
//func (pubKey PubKey) VRFVerify(proof crypto.Proof, seed []byte) (crypto.Output, error) {
// return nil, fmt.Errorf("VRF verify is not supported by the BLS12")
//}
func (pubKey PubKey) String() string {
return fmt.Sprintf("PubKeyBLS12{%X}", pubKey[:])