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BackUp DES

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This commit is contained in:
TheJoKlLa
2020-10-01 19:06:09 +02:00
parent b9708da234
commit c943a51d9c
9 changed files with 393 additions and 8 deletions
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45
NFC/Crypto/DES.cs Normal file
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using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Engines;
using Org.BouncyCastle.Crypto.Modes;
using Org.BouncyCastle.Crypto.Paddings;
using Org.BouncyCastle.Crypto.Parameters;
namespace NFC.Crypto
{
public class DES
{
public byte[] Encrypt(byte[] data, byte[] key, byte[] iv)
{
DesEngine engine = new DesEngine();
CbcBlockCipher blockCipher = new CbcBlockCipher(engine);
BufferedBlockCipher cipher = new BufferedBlockCipher(blockCipher);
KeyParameter keyParam = new KeyParameter(key);
ParametersWithIV keyParamWithIV = new ParametersWithIV(keyParam, iv);
// Encrypt
cipher.Init(true, keyParamWithIV);
byte[] outputBytes = new byte[cipher.GetOutputSize(data.Length)];
int length = cipher.ProcessBytes(data, outputBytes, 0);
cipher.DoFinal(outputBytes, length);
return outputBytes;
}
public byte[] Decrypt(byte[] data, byte[] key, byte[] iv)
{
DesEngine engine = new DesEngine();
CbcBlockCipher blockCipher = new CbcBlockCipher(engine);
BufferedBlockCipher cipher = new BufferedBlockCipher(blockCipher);
KeyParameter keyParam = new KeyParameter(key);
ParametersWithIV keyParamWithIV = new ParametersWithIV(keyParam, iv);
// Decrypt
cipher.Init(false, keyParamWithIV);
byte[] outputBytes = new byte[cipher.GetOutputSize(data.Length)];
int length = cipher.ProcessBytes(data, outputBytes, 0);
cipher.DoFinal(outputBytes, length);
return outputBytes;
}
}
}

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NFC/Crypto/TripleDES.cs Normal file
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using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Engines;
using Org.BouncyCastle.Crypto.Modes;
using Org.BouncyCastle.Crypto.Paddings;
using Org.BouncyCastle.Crypto.Parameters;
namespace NFC.Crypto
{
public class TripleDES
{
public byte[] Encrypt(byte[] data, byte[] key, byte[] iv)
{
DesEngine engine = new DesEdeEngine();
CbcBlockCipher blockCipher = new CbcBlockCipher(engine);
BufferedBlockCipher cipher = new BufferedBlockCipher(blockCipher);
KeyParameter keyParam = new KeyParameter(key);
ParametersWithIV keyParamWithIV = new ParametersWithIV(keyParam, iv);
// Encrypt
cipher.Init(true, keyParamWithIV);
byte[] outputBytes = new byte[cipher.GetOutputSize(data.Length)];
int length = cipher.ProcessBytes(data, outputBytes, 0);
cipher.DoFinal(outputBytes, length);
return outputBytes;
}
public byte[] Decrypt(byte[] data, byte[] key, byte[] iv)
{
DesEngine engine = new DesEdeEngine();
CbcBlockCipher blockCipher = new CbcBlockCipher(engine);
BufferedBlockCipher cipher = new BufferedBlockCipher(blockCipher);
KeyParameter keyParam = new KeyParameter(key);
ParametersWithIV keyParamWithIV = new ParametersWithIV(keyParam, iv);
// Decrypt
cipher.Init(false, keyParamWithIV);
byte[] outputBytes = new byte[cipher.GetOutputSize(data.Length)];
int length = cipher.ProcessBytes(data, outputBytes, 0);
cipher.DoFinal(outputBytes, length);
return outputBytes;
}
}
}