Optimize salt+nonce appends

wrappers/aes.go

@@ -27,12 +27,7 @@ func encryptAES(decBytes, key2, salt2 []byte) []byte {
 	ciphertext := aesGCM.Seal(nil, nonce, decBytes, nil)
 
 	// format: salt2 + nonce + ciphertext
-	result := make([]byte, 0, saltSize2+nonceSizeAES+len(ciphertext))
+	return append(append(append(make([]byte, 0, saltSize2+nonceSizeAES+len(ciphertext)), salt2...), nonce...), ciphertext...)
-	result = append(result, salt2...)
-	result = append(result, nonce...)
-	result = append(result, ciphertext...)
-
-	return result
 }
 
 // DecryptAES decrypts data using AES256-GCM.

wrappers/chacha.go

@@ -22,12 +22,7 @@ func encryptCha(decBytes, key2, salt2 []byte) []byte {
 	ciphertext := stream.Seal(nil, nonce, decBytes, nil)
 
 	// format: salt2 + nonce + ciphertext
-	result := make([]byte, 0, saltSize2+nonceSizeCha+len(ciphertext))
+	return append(append(append(make([]byte, 0, saltSize2+nonceSizeCha+len(ciphertext)), salt2...), nonce...), ciphertext...)
-	result = append(result, salt2...)
-	result = append(result, nonce...)
-	result = append(result, ciphertext...)
-
-	return result
 }
 
 // DecryptCha decrypts data using ChaCha20-Poly1305.

wrappers/highLevel.go

@@ -28,8 +28,5 @@ func Encrypt(decBytes []byte, passphrase []byte) []byte {
 	decBytes = encryptAES(decBytes, key2AES, salt2AES)
 	decBytes = encryptCha(decBytes, key2Cha, salt2Cha)
 	// format: salt1 + decBytes per algorithm (salt2* + nonce + ciphertext)
-	encBytes := make([]byte, 0, saltSize1+len(decBytes))
+	return append(append(make([]byte, 0, saltSize1+len(decBytes)), salt1...), decBytes...)
-	encBytes = append(encBytes, salt1...)
-	encBytes = append(encBytes, decBytes...)
-	return encBytes
 }