public void setCryptKey(byte[] encrypt)
{
m_cryptAlgorithm = CryptAlgorithm.DES;
m_cryptKey = encrypt;
Dec.DES_set_key_unchecked(m_cryptKey, m_cryptKeyArr[(int)CryptAlgorithm.DES] as DES_key_schedule);
}
//根据加密算法 截取 keyData
//DES 密钥要求为8位 3DES的密钥要求为3*8
private byte[] MakeKey(byte[] keyData, CryptAlgorithm alg)
{
byte[] key = keyData;
if (keyData.Length > 8)
{
if (CryptAlgorithm.DES == alg)
{
key = new byte[8];
Array.Copy(keyData, 0, key, 0, 8);
}
if (CryptAlgorithm.TRIPLE_DES == alg)
{
if (keyData.Length > 24)
{
key = new byte[24];
Array.Copy(keyData, 0, key, 0, 24);
}
}
}
return key;
}
public void setCryptKey(byte[] encrypt)
{
m_cryptAlgorithm = CryptAlgorithm.DES;
m_cryptKey = encrypt;
Dec.DES_set_key_unchecked(m_cryptKey, m_cryptKeyArr[(int)CryptAlgorithm.DES] as DES_key_schedule);
}
private byte[] Encrypt(byte[] keyData, byte[] sourceData, CryptAlgorithm alg)
{
byte[] result = null;
KeyParameter keyParam = null;
IBufferedCipher engine = null;
switch (alg)
{
case CryptAlgorithm.TRIPLE_DES:
keyParam = new DesEdeParameters(keyData);
engine = CipherUtilities.GetCipher("DESede/CBC/PKCS7PADDING");
engine.Init(true, keyParam);
result = engine.DoFinal(sourceData);
break;
case CryptAlgorithm.RSA:
throw new NotSupportedException("CryptAlgorithm.RSA NOT SUPPORT YET");
case CryptAlgorithm.DES:
default://默认DES
keyParam = new DesParameters(keyData);
engine = CipherUtilities.GetCipher("DES/ECB/PKCS7PADDING");
engine.Init(true, keyParam);
result = engine.DoFinal(sourceData);
break;
}
return result;
}
