29 lines
506 B
Go
29 lines
506 B
Go
|
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
|
||
|
|
}
|