minor: add an input parameter on GenerateBase64EdDSA: padding

Author: kataras

eddsa.go

@@ -224,15 +224,28 @@ func GenerateEdDSA() (ed25519.PublicKey, ed25519.PrivateKey, error) {
 
 // GenerateBase64EdDSA generates random public and private keys for ed25519.
 // The keys are returned as base64 encoded strings.
-func GenerateBase64EdDSA() (string, string, error) {
+//
+// Usage:
+//
+//	publicKey, privateKey, err := GenerateBase64EdDSA(base64.StdPadding)
+//
+// OR
+//
+//	publicKey, privateKey, err := GenerateBase64EdDSA(base64.NoPadding)
+func GenerateBase64EdDSA(padding rune) (string, string, error) {
 	_, priv, err := ed25519.GenerateKey(rand.Reader)
 	if err != nil {
 		return "", "", err
 	}
 	pub := ed25519.PrivateKey(priv).Public().(ed25519.PublicKey)
 
-	publicKey := base64.StdEncoding.EncodeToString(pub)
-	privateKey := base64.StdEncoding.EncodeToString(priv)
+	if padding == 0 {
+		padding = base64.NoPadding
+	}
+	encoding := base64.StdEncoding.WithPadding(padding)
+
+	publicKey := encoding.EncodeToString(pub)
+	privateKey := encoding.EncodeToString(priv)
 
 	return publicKey, privateKey, nil
 }