init: v1.0.0

sm/sm4/gcm.go

@@ -0,0 +1,12 @@
+package sm4
+
+import "crypto/cipher"
+
+// NewGCM return a standard AEAD for sm4-gcm of 12 bytes nonce and 16 bytes tag.
+func NewGCM(key []byte) (cipher.AEAD, error) {
+	c, err := NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+	return cipher.NewGCM(c)
+}