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2d1ada4d52
* crypto: Use curve25519-voi This switches the ed25519, sr25519 and merlin provider to curve25519-voi and additionally adopts ZIP-215 semantics for ed25519 verification. * crypto: Implement batch verification interface for ed25519 and sr25519 This commit adds the batch verification interface, but does not enable it for anything. * types: Use batch verification for verifying commits signatures
47 lines
1.0 KiB
Go
47 lines
1.0 KiB
Go
package sr25519
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import (
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"fmt"
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"github.com/oasisprotocol/curve25519-voi/primitives/sr25519"
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"github.com/tendermint/tendermint/crypto"
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)
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var _ crypto.BatchVerifier = &BatchVerifier{}
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// BatchVerifier implements batch verification for sr25519.
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type BatchVerifier struct {
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*sr25519.BatchVerifier
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}
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func NewBatchVerifier() crypto.BatchVerifier {
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return &BatchVerifier{sr25519.NewBatchVerifier()}
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}
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func (b *BatchVerifier) Add(key crypto.PubKey, msg, signature []byte) error {
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pk, ok := key.(PubKey)
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if !ok {
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return fmt.Errorf("sr25519: pubkey is not sr25519")
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}
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var srpk sr25519.PublicKey
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if err := srpk.UnmarshalBinary(pk); err != nil {
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return fmt.Errorf("sr25519: invalid public key: %w", err)
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}
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var sig sr25519.Signature
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if err := sig.UnmarshalBinary(signature); err != nil {
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return fmt.Errorf("sr25519: unable to decode signature: %w", err)
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}
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st := signingCtx.NewTranscriptBytes(msg)
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b.BatchVerifier.Add(&srpk, st, &sig)
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return nil
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}
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func (b *BatchVerifier) Verify() (bool, []bool) {
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return b.BatchVerifier.Verify(crypto.CReader())
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}
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