dione/beacon/vrf.go

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package beacon
import (
"fmt"
"github.com/libp2p/go-libp2p-core/crypto"
"github.com/libp2p/go-libp2p-core/peer"
)
func ComputeVRF(privKey crypto.PrivKey, sigInput []byte) ([]byte, error) {
return privKey.Sign(sigInput)
}
func VerifyVRF(worker peer.ID, vrfBase, vrfproof []byte) error {
pk, err := worker.ExtractPublicKey()
if err != nil {
return err
}
ok, err := pk.Verify(vrfBase, vrfproof)
if err != nil {
return err
}
if !ok {
return fmt.Errorf("vrf was invalid")
}
return nil
}