/
batch.go
46 lines (34 loc) · 1.04 KB
/
batch.go
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package sr25519
import (
"fmt"
"github.com/oasisprotocol/curve25519-voi/primitives/sr25519"
"github.com/tendermint/tendermint/crypto"
)
var _ crypto.BatchVerifier = &BatchVerifier{}
// BatchVerifier implements batch verification for sr25519.
type BatchVerifier struct {
*sr25519.BatchVerifier
}
func NewBatchVerifier() crypto.BatchVerifier {
return &BatchVerifier{sr25519.NewBatchVerifier()}
}
func (b *BatchVerifier) Add(key crypto.PubKey, msg, signature []byte) error {
pk, ok := key.(PubKey)
if !ok {
return fmt.Errorf("sr25519: pubkey is not sr25519")
}
var srpk sr25519.PublicKey
if err := srpk.UnmarshalBinary(pk); err != nil {
return fmt.Errorf("sr25519: invalid public key: %w", err)
}
var sig sr25519.Signature
if err := sig.UnmarshalBinary(signature); err != nil {
return fmt.Errorf("sr25519: unable to decode signature: %w", err)
}
st := signingCtx.NewTranscriptBytes(msg)
b.BatchVerifier.Add(&srpk, st, &sig)
return nil
}
func (b *BatchVerifier) Verify() (bool, []bool) {
return b.BatchVerifier.Verify(crypto.CReader())
}