diff --git a/sign/keys.go b/sign/keys.go
index a6869b8..2ac787c 100644
--- a/sign/keys.go
+++ b/sign/keys.go
@@ -30,6 +30,7 @@ import (
 	"math/big"
 
 	Ed "crypto/ed25519"
+
 	"golang.org/x/crypto/scrypt"
 	"gopkg.in/yaml.v2"
 )
@@ -179,14 +180,14 @@ func makePrivateKeyFromBytes(sk *PrivateKey, buf []byte) error {
 	return nil
 }
 
-/*
 // Make a private key from 64-bytes of extended Ed25519 key
 func PrivateKeyFromBytes(buf []byte) (*PrivateKey, error) {
 	var sk PrivateKey
-
-	return makePrivateKeyFromBytes(&sk, buf)
+	if err := makePrivateKeyFromBytes(&sk, buf); err != nil {
+		return nil, err
+	}
+	return &sk, nil
 }
-*/
 
 // Given a secret key, return the corresponding Public Key
 func (sk *PrivateKey) PublicKey() *PublicKey {
@@ -404,14 +405,14 @@ func makePublicKeyFromBytes(pk *PublicKey, b []byte) error {
 	return nil
 }
 
-/*
 // Make a public key from a byte string
 func PublicKeyFromBytes(b []byte) (*PublicKey, error) {
 	var pk PublicKey
-
-	makePublicKeyFromBytes(&pk, b)
+	if err := makePublicKeyFromBytes(&pk, b); err != nil {
+		return nil, err
+	}
+	return &pk, nil
 }
-*/
 
 // Serialize a PublicKey into file 'fn' with a human readable 'comment'.
 // If 'ovwrite' is true, overwrite the file if it exists.