BouncyCastle的河豚加密問題

Question

這裏是我的BlowFishCrypto類

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using Org.BouncyCastle.Crypto; 
using Org.BouncyCastle.Crypto.Modes; 
using Org.BouncyCastle.Crypto.Engines; 
using Org.BouncyCastle.Crypto.Parameters; 
using Org.BouncyCastle.Math; 
namespace Common.Encryption 
{ 
    public class BlowfishCryptographer 
    { 
     private bool forEncryption; 
     private IBufferedCipher cipher; 

     public BlowfishCryptographer(bool forEncryption) 
     { 
      this.forEncryption = forEncryption; 
      cipher = new BufferedBlockCipher(new CfbBlockCipher(new BlowfishEngine(), 64)); 
      cipher.Init(forEncryption, new ParametersWithIV(new KeyParameter(Encoding.ASCII.GetBytes("DR654dt34trg4UI6")), new byte[8])); 
     } 
     public void ReInit(byte[] IV,BigInteger pubkey) 
     { 
      cipher.Init(forEncryption, new ParametersWithIV(new KeyParameter(pubkey.ToByteArrayUnsigned()),IV)); 
     } 
     public byte[] DoFinal() 
     { 
      return cipher.DoFinal(); 
     } 
     public byte[] DoFinal(byte[] buffer) 
     { 
      return cipher.DoFinal(buffer); 
     } 
     public byte[] DoFinal(byte[] buffer, int startIndex, int len) 
     { 
      return cipher.DoFinal(buffer, startIndex, len); 
     } 
     public byte[] ProcessBytes(byte[] buffer) 
     { 
      return cipher.ProcessBytes(buffer); 
     } 
     public byte[] ProcessBytes(byte[] buffer, int startIndex, int len) 
     { 
      return cipher.ProcessBytes(buffer, startIndex, len); 
     } 
     public void Reset() 
     { 
      cipher.Reset(); 
     } 
    } 
} 

我在其他類我試圖測試，所以我做它像這樣

BlowfishCryptographer incomingCipher=new BlowfishCryptographer(true); 
BlowfishCryptographer outgoingCipher=new BlowfishCryptographer(false); 

byte[] buffer = new byte[] { 0x83, 0x00, 0xEE, 0x03, 0x26, 0x6D, 0x14, 0x00, 0xF1, 0x65, 0x27, 0x00, 0x19, 0x02, 0xD8, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xDB, 0xD7, 0x0F, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2B, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x41, 0x00, 0x64, 0x00, 0xE4, 0x00, 0x00, 0x00, 0xDD, 0x0A, 0x18, 0x19, 0x00, 0x00, 0x79, 0x91, 0x87, 0x00, 0x00, 0x01, 0x00, 0xA8, 0x02, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, 0x34, 0x00, 0x6A, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x0A, 0x7E, 0x42, 0x6C, 0x75, 0x65, 0x57, 0x61, 0x76, 0x65, 0x7E, 0x00, 0x09, 0x42, 0x6C, 0x61, 0x63, 0x6B, 0x44, 0x75, 0x73, 0x74 }; 

Console.WriteLine("\n\nBuffer\n" + outPutHex.ToHex(buffer)); 
      Console.WriteLine("\n\nBuffer enc\n" + outPutHex.ToHex(outgoingCipher.DoFinal(buffer))); 
      Console.WriteLine("\n\nBuffer dec\n" + outPutHex.ToHex(incomingCipher.DoFinal(buffer))); 

outputhex FUNC會出來把結果爲十六進制

public static String ToHex(byte[] buf) 
     { 
      var builder = new StringBuilder(); 
      foreach (var b in buf) builder.Append(b.ToString("X2")+ " "); 
      return builder.ToString(); 
     } 

所以結果是：

Buffer 
83 00 EE 03 26 6D 14 00 F1 65 27 00 19 02 D8 0F 00 00 00 00 00 00 DB D7 0F 08 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2B 04 00 00 00 00 00 00 07 00 41 0 
0 64 00 E4 00 00 00 DD 0A 18 19 00 00 79 91 87 00 00 01 00 A8 02 00 00 64 00 00 
00 34 00 6A 18 00 00 00 00 00 00 C2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 03 0A 7E 42 6C 75 65 57 61 76 65 7E 00 09 42 6C 61 63 6B 44 75 73 74 


Buffer enc 
EB 28 65 06 EF B5 B9 3E 01 2F D0 B4 C2 25 4C 9C E2 05 D8 B5 93 AC F9 0F 92 87 8B 
5D 1E 45 F6 59 F8 FE 57 A8 0D CF 6C 6B E8 8D F9 88 A6 1D 6D 05 CC B8 6A 9F B0 8 
D 13 70 AB F6 3F F8 DD EA ED 16 C3 DB A6 77 B2 46 29 0B DA F4 E2 FF A4 BA 6F C0 
06 28 71 57 08 C8 EC 0F 65 54 13 46 C1 23 08 A5 28 C9 9F 9F 1D AD F9 66 09 A7 3B 
E3 22 64 A3 A0 8C 90 BC 1A 99 F1 4F F6 73 49 32 10 78 7D CF FF 68 01 75 


Buffer dec 
EB 28 65 06 EF B5 B9 3E B7 BE A2 2A 3D 92 5F D5 CF E3 D5 09 C0 5B 9D AD 01 D6 E4 
6D 73 3A 66 59 A9 83 10 11 80 FE 31 48 68 28 A0 01 C9 D8 AD 3E 38 B7 42 4B E5 E 
5 56 44 99 91 E8 72 F0 C9 2B AF 83 8C 35 33 6E 08 CA 1E F0 3F 59 E8 64 8D A6 1C 
CE 6E FF DC D6 3A FC D0 80 5B 36 81 06 FA 4E 0F 0B FA 54 CA C0 AD 32 52 68 28 8B 
05 CA D2 D3 7C 90 48 93 71 99 CE 28 0B 38 F2 8E 93 74 2F B1 67 9E 68 3F 

它不工作，但爲什麼？

Answer 1

我想我找到了問題：

Console.WriteLine("\n\nBuffer\n" + outPutHex.ToHex(buffer)); 
Console.WriteLine("\n\nBuffer enc\n" + 
    outPutHex.ToHex(outgoingCipher.DoFinal(buffer))); 
Console.WriteLine("\n\nBuffer dec\n" + 
    outPutHex.ToHex(incomingCipher.DoFinal(buffer))); 

你創建了兩個密碼上下文incomingCipher和outgoingCipher。你在相同的輸入buffer上運行它們。如果您正在檢查test vectors，這可能很有用，但兩者肯定不會相同。

嘗試：

byte[] buffer = new byte[] { 0x83, 0x00, /* etc */ } 

byte[] enc = incomingCipher.DoFinal(buffer); 
byte[] dec = outgoingCipher.DoFinal(enc); 

Console.WriteLine("\n\nBuffer\n" + outPutHex.ToHex(buffer)); 
Console.WriteLine("\n\nBuffer enc\n" + outPutHex.ToHex(enc)); 
Console.WriteLine("\n\nBuffer dec\n" + outPutHex.ToHex(dec));