Function parsePublicKeyBlock

go/internal/signingalgorithm/certs.go:125–135

parsePublicKeyBlock parses any allowed type public key. Currently only allows parsing ed25519 type public keys.

(derKey []byte)

// parsePublicKeyBlock parses any allowed type public key. Currently only allows parsing ed25519 type public keys.
func parsePublicKeyBlock(derKey []byte) (crypto.PublicKey, error) {
	if keyInterface, err := x509.ParsePKIXPublicKey(derKey); err == nil {
		switch typedKey := keyInterface.(type) {
		case ed25519.PublicKey:
			return typedKey, nil
		default:
			return nil, fmt.Errorf("signingalgorithm: unknown public key type: %T", typedKey)
		}
	}
	return nil, errors.New("signingalgorithm: couldn't parse public key.")
}