void DecryptData_model(BYTE * inData, size_t len, const BYTE* key1, const BYTE* key2, const BYTE* key3, t_DES_SPtrans * sp)
{
assert((len & 0x7) == 0);
DES_key_schedule sKey[3];
DES_set_key((const_DES_cblock*)key1, &sKey[0]);
DES_set_key((const_DES_cblock*)key2, &sKey[1]);
DES_set_key((const_DES_cblock*)key3, &sKey[2]);
for (size_t i = 0; i < len; i += 8)
{
DES_decrypt3((DWORD*)(inData + i), &sKey[0], &sKey[1], &sKey[2], sp);
}
}
void DES_ecb3_encrypt(const unsigned char *in, unsigned char *out,
DES_key_schedule *ks1, DES_key_schedule *ks2,
DES_key_schedule *ks3,
int enc)
{
register DES_LONG l0,l1;
DES_LONG ll[2];
c2l(in,l0);
c2l(in,l1);
ll[0]=l0;
ll[1]=l1;
if (enc)
DES_encrypt3(ll,ks1,ks2,ks3);
else
DES_decrypt3(ll,ks1,ks2,ks3);
l0=ll[0];
l1=ll[1];
l2c(l0,out);
l2c(l1,out);
}
void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,
long length, DES_key_schedule *ks1,
DES_key_schedule *ks2, DES_key_schedule *ks3,
DES_cblock *ivec, int enc)
{
register DES_LONG tin0, tin1;
register DES_LONG tout0, tout1, xor0, xor1;
register const unsigned char *in;
unsigned char *out;
register long l = length;
DES_LONG tin[2];
unsigned char *iv;
in = input;
out = output;
iv = &(*ivec)[0];
if (enc) {
c2l(iv, tout0);
c2l(iv, tout1);
for (l -= 8; l >= 0; l -= 8) {
c2l(in, tin0);
c2l(in, tin1);
tin0 ^= tout0;
tin1 ^= tout1;
tin[0] = tin0;
tin[1] = tin1;
DES_encrypt3((DES_LONG *)tin, ks1, ks2, ks3);
tout0 = tin[0];
tout1 = tin[1];
l2c(tout0, out);
l2c(tout1, out);
}
if (l != -8) {
c2ln(in, tin0, tin1, l + 8);
tin0 ^= tout0;
tin1 ^= tout1;
tin[0] = tin0;
tin[1] = tin1;
DES_encrypt3((DES_LONG *)tin, ks1, ks2, ks3);
tout0 = tin[0];
tout1 = tin[1];
l2c(tout0, out);
l2c(tout1, out);
}
iv = &(*ivec)[0];
l2c(tout0, iv);
l2c(tout1, iv);
} else {
register DES_LONG t0, t1;
c2l(iv, xor0);
c2l(iv, xor1);
for (l -= 8; l >= 0; l -= 8) {
c2l(in, tin0);
c2l(in, tin1);
t0 = tin0;
t1 = tin1;
tin[0] = tin0;
tin[1] = tin1;
DES_decrypt3((DES_LONG *)tin, ks1, ks2, ks3);
tout0 = tin[0];
tout1 = tin[1];
tout0 ^= xor0;
tout1 ^= xor1;
l2c(tout0, out);
l2c(tout1, out);
xor0 = t0;
xor1 = t1;
}
if (l != -8) {
c2l(in, tin0);
c2l(in, tin1);
t0 = tin0;
t1 = tin1;
tin[0] = tin0;
tin[1] = tin1;
DES_decrypt3((DES_LONG *)tin, ks1, ks2, ks3);
tout0 = tin[0];
tout1 = tin[1];
tout0 ^= xor0;
tout1 ^= xor1;
l2cn(tout0, tout1, out, l + 8);
xor0 = t0;
xor1 = t1;
}
iv = &(*ivec)[0];
l2c(xor0, iv);
l2c(xor1, iv);
}
tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
tin[0] = tin[1] = 0;
}
void _ossl_old_des_decrypt3(DES_LONG *data, des_key_schedule ks1,
des_key_schedule ks2, des_key_schedule ks3)
{
DES_decrypt3(data, (DES_key_schedule *)ks1, (DES_key_schedule *)ks2,
(DES_key_schedule *)ks3);
}
