include encrypting class

Author: selfmadecode

src/Encryption/AesEncryption/Decrypting.cs

@@ -0,0 +1,43 @@
+using SafeCrypt.src.Encrypt.AesEncryption;
+using SafeCrypt.src.Helpers;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace SafeCrypt.src.Encryption.AesEncryption
+{
+    public class Decrypting : BaseAesEncryption
+    {
+        public byte[] AesDecrypt(string data, string secretKey, string iv)
+        {
+            NullChecks(data, secretKey, iv);
+
+            var (aesKey, aesIv) = ConvertKeysToBytesAndGetKeys(secretKey, iv);
+
+            var aesData = data.HexadecimalStringToByteArray();
+            return DecryptAES(aesData, aesKey, aesIv);
+        }
+
+        public byte[] Decrypt(byte[] data, byte[] secretKey, byte[] iv)
+            => DecryptAES(data, secretKey, iv);
+
+
+        private void NullChecks(string data, string secretKey, string iv)
+        {
+            if (data == null || data.Length <= 0)
+                throw new ArgumentNullException(nameof(data));
+
+            if (secretKey == null || secretKey.Length <= 0)
+                throw new ArgumentNullException(nameof(secretKey));
+
+            if (iv == null || iv.Length <= 0)
+                throw new ArgumentNullException(nameof(iv));
+        }
+
+        private (byte[], byte[]) ConvertKeysToBytesAndGetKeys(string secretKey, string iv)
+        {
+
+            return (secretKey.ConvertKeysToBytes(), iv.ConvertKeysToBytes());
+        }
+    }
+}