protected void testDes()
{
//string testStr = "asdfasdf5";
//byte[] inBytes = System.Text.Encoding.UTF8.GetBytes(testStr);
//byte[] key = { 0x65, 0xC1, 0x78, 0xB2, 0x84, 0xD1, 0x97, 0xCC };
byte[] key = { 26, 32, 127, 193, 251, 239, 174, 97 };
//byte[] inBytes = { 0x3f, 0x79, 0xd5, 0xe2, 0x4a, 0x8c, 0xb6, 0xc1, 0x3f, 0x79, 0xd5, 0xe2, 0x4a, 0x8c, 0xb6, 0xc1 };
byte[] inBytes = { 0x0c, 0x00, 0x00, 0x00, 0x03, 0x35, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
byte[] outBytes = new byte[16];
uint inSize = (uint)inBytes.Length;
DES_key_schedule des5Key = new DES_key_schedule(); // RC5 key
Dec.DES_set_key_unchecked(key, des5Key);
CryptContext cryptContext = new CryptContext();
cryptContext.m_cryptAlgorithm = CryptAlgorithm.DES;
cryptContext.setCryptKey(key);
//Crypt.encryptData(inBytes, 0, 16, ref outBytes, des5Key, CryptAlgorithm.DES);
//Crypt.decryptData(outBytes, 0, 16, ref inBytes, des5Key, CryptAlgorithm.DES);
//testStr = System.Text.Encoding.UTF8.GetString(inBytes);
Crypt.decryptData(inBytes, 0, 16, ref outBytes, cryptContext);
}
public void DES_set_key(DES_cblock key, DES_key_schedule schedule)
{
int[] numArray = new int[] { 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0 };
uint l = 0;
uint num2 = 0;
uint t = 0;
uint num4 = 0;
uint a = 0;
func_c2l_first(key.arrBlock, ref l);
func_c2l_second(key.arrBlock, ref num2);
func_PERM_OP(ref num2, ref l, ref t, 4, 0xf0f0f0f);
func_HPERM_OP(ref l, ref t, -2, 0xcccc0000);
func_HPERM_OP(ref num2, ref t, -2, 0xcccc0000);
func_PERM_OP(ref num2, ref l, ref t, 1, 0x55555555);
func_PERM_OP(ref l, ref num2, ref t, 8, 0xff00ff);
func_PERM_OP(ref num2, ref l, ref t, 1, 0x55555555);
num2 = (uint)(((((num2 & 0xff) << 0x10) | (num2 & 0xff00)) | ((num2 & 0xff0000) >> 0x10)) | ((l & 0xf0000000) >> 4));
l &= 0xfffffff;
for (int i = 0; i < 0x10L; i++)
{
if (numArray[i] > 0)
{
l = (l >> 2) | (l << 0x1a);
num2 = (num2 >> 2) | (num2 << 0x1a);
}
else
{
l = (l >> 1) | (l << 0x1b);
num2 = (num2 >> 1) | (num2 << 0x1b);
}
l &= 0xfffffff;
num2 &= 0xfffffff;
num4 = ((des_skb[0, (int)((IntPtr)(l & 0x3f))] | des_skb[1, (int)((IntPtr)(((l >> 6) & 3) | ((l >> 7) & 60)))]) | des_skb[2, (int)((IntPtr)(((l >> 13) & 15) | ((l >> 14) & 0x30)))]) | des_skb[3, (int)((IntPtr)((((l >> 20) & 1) | ((l >> 0x15) & 6)) | ((l >> 0x16) & 0x38)))];
t = ((des_skb[4, (int)((IntPtr)(num2 & 0x3f))] | des_skb[5, (int)((IntPtr)(((num2 >> 7) & 3) | ((num2 >> 8) & 60)))]) | des_skb[6, (int)((IntPtr)((num2 >> 15) & 0x3f))]) | des_skb[7, (int)((IntPtr)(((num2 >> 0x15) & 15) | ((num2 >> 0x16) & 0x30)))];
a = ((t << 0x10) | (num4 & 0xffff)) & uint.MaxValue;
schedule.arrKeys[2 * i] = func_ROTATE(ref a, 30) & uint.MaxValue;
a = (num4 >> 0x10) | (t & 0xffff0000);
schedule.arrKeys[(2 * i) + 1] = func_ROTATE(ref a, 0x1a) & uint.MaxValue;
}
}
public void DES_encrypt1(uint[] data, DES_key_schedule ks1, uint[,] sp, bool enc)
{
uint r = 0;
uint l = 0;
uint t = 0;
uint u = 0;
int s = 0;
l = data[0];
r = data[1];
func_IP(ref l, ref r);
l = func_ROTATE(ref l, 0x1d) & uint.MaxValue;
r = func_ROTATE(ref r, 0x1d) & uint.MaxValue;
if (enc)
{
for (s = 0; s < 0x20; s += 8)
{
func_D_ENCRYPT(ref r, ref l, s, ref u, ref t, ks1.arrKeys, sp);
func_D_ENCRYPT(ref l, ref r, s + 2, ref u, ref t, ks1.arrKeys, sp);
func_D_ENCRYPT(ref r, ref l, s + 4, ref u, ref t, ks1.arrKeys, sp);
func_D_ENCRYPT(ref l, ref r, s + 6, ref u, ref t, ks1.arrKeys, sp);
}
}
else
{
for (s = 30; s > 0; s -= 8)
{
func_D_ENCRYPT(ref r, ref l, s, ref u, ref t, ks1.arrKeys, sp);
func_D_ENCRYPT(ref l, ref r, s - 2, ref u, ref t, ks1.arrKeys, sp);
func_D_ENCRYPT(ref r, ref l, s - 4, ref u, ref t, ks1.arrKeys, sp);
func_D_ENCRYPT(ref l, ref r, s - 6, ref u, ref t, ks1.arrKeys, sp);
}
}
r = func_ROTATE(ref r, 3) & uint.MaxValue;
l = func_ROTATE(ref l, 3) & uint.MaxValue;
func_FP(ref l, ref r);
data[0] = r;
data[1] = l;
r = l = t = u = 0;
}
static public bool DES_ECB_Symmetry_Decode_OpenSSL(byte[] decryptByte, uint startPos, uint inLen, ref byte[] outBytes, DES_key_schedule rgbKey, CryptContext cryptContext)
{
try
{
Dec.DES_ecb_encrypt_one(decryptByte, startPos, inLen, ref outBytes, rgbKey, RC5.RC5_DECRYPT, cryptContext);
return(true);
}
catch
{
Ctx.m_instance.m_logSys.error("DES_ecb_encrypt_one error");
return(false);
}
}
// rc5 加密后大小不会变化的
static public bool DES_ECB_Symmetry_Encode_OpenSSL(byte[] encryptByte, uint startPos, uint inLen, ref byte[] outBytes, DES_key_schedule rgbKey, CryptContext cryptContext)
{
try
{
Dec.DES_ecb_encrypt_one(encryptByte, startPos, inLen, ref outBytes, rgbKey, RC5.RC5_ENCRYPT, cryptContext);
return true;
}
catch
{
Ctx.m_instance.m_logSys.error("DES_ECB_Symmetry_Encode_OpenSSL error");
return false;
}
}
