70 lines
2 KiB
C#
70 lines
2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.IO;
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using System.Linq;
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using System.Numerics;
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using System.Security.Cryptography;
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using System.Text;
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using System.Threading.Tasks;
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using Glove;
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namespace SockScape.Encryption {
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class BlockCipher {
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public const int KeySize = 192;
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public const int KeySizeBytes = KeySize / 8;
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private readonly byte[] Key = new byte[KeySizeBytes];
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private readonly byte[] IV;
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public BlockCipher(BigInteger key) {
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Array.Copy(key.ToByteArray(), Key, Key.Length);
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IV = Configuration.General["Master IV"].Str.HexStringToBytes()
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?? new byte[] { 0x0b, 0xfc, 0xd7, 0x2d, 0x23, 0xb7, 0x83, 0xb2 };
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}
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public byte[] Encrypt(byte[] data) {
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try {
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var ms = new MemoryStream();
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var cs = new CryptoStream(ms,
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new TripleDESCryptoServiceProvider().CreateEncryptor(Key, IV),
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CryptoStreamMode.Write);
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cs.Write(data, 0, data.Length);
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cs.FlushFinalBlock();
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byte[] ret = ms.ToArray();
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cs.Close();
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ms.Close();
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return ret;
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} catch(Exception e) {
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Console.WriteLine($"TDES ENCRYPT ERROR: {e.Message}");
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return null;
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}
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}
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public byte[] Decrypt(byte[] data) {
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try {
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var ms = new MemoryStream(data);
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var cs = new CryptoStream(ms,
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new TripleDESCryptoServiceProvider().CreateDecryptor(Key, IV),
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CryptoStreamMode.Read);
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byte[] ret = new byte[data.Length];
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cs.Read(ret, 0, data.Length);
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cs.Close();
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ms.Close();
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return ret;
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} catch(Exception e) {
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Console.WriteLine($"TDES DECRYPT ERROR: {e.Message}");
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return null;
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}
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}
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}
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}
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