mirror of
https://github.com/radareorg/radare2.git
synced 2024-12-15 09:21:00 +00:00
249 lines
6.3 KiB
C
249 lines
6.3 KiB
C
#include <r_types.h>
|
|
#include <r_util.h>
|
|
|
|
static const ut32 IP[] = {
|
|
58, 50, 42, 34, 26, 18, 10, 2,
|
|
60, 52, 44, 36, 28, 20, 12, 4,
|
|
62, 54, 46, 38, 30, 22, 14, 6,
|
|
64, 56, 48, 40, 32, 24, 16, 8,
|
|
57, 49, 41, 33, 25, 17, 9, 1,
|
|
59, 51, 43, 35, 27, 19, 11, 3,
|
|
61, 53, 45, 37, 29, 21, 13, 5,
|
|
63, 55, 47, 39, 31, 23, 15, 7
|
|
};
|
|
|
|
static const ut32 INV_IP[] = {
|
|
40, 8, 48, 16, 56, 24, 64, 32,
|
|
39, 7, 47, 15, 55, 23, 63, 31,
|
|
38, 6, 46, 14, 54, 22, 62, 30,
|
|
37, 5, 45, 13, 53, 21, 61, 29,
|
|
36, 4, 44, 12, 52, 20, 60, 28,
|
|
35, 3, 43, 11, 51, 19, 59, 27,
|
|
34, 2, 42, 10, 50, 18, 58, 26,
|
|
33, 1, 41, 9, 49, 17, 57, 25
|
|
};
|
|
|
|
static const ut32 E[] = {
|
|
32, 1, 2, 3, 4, 5,
|
|
4, 5, 6, 7, 8, 9,
|
|
8, 9, 10, 11, 12, 13,
|
|
12, 13, 14, 15, 16, 17,
|
|
16, 17, 18, 19, 20, 21,
|
|
20, 21, 22, 23, 24, 25,
|
|
24, 25, 26, 27, 28, 29,
|
|
28, 29, 30, 31, 32, 1
|
|
};
|
|
|
|
static const ut32 P[] = {
|
|
16, 7, 20, 21, 29, 12, 28, 17,
|
|
1, 15, 23, 26, 5, 18, 31, 10,
|
|
2, 8, 24, 14, 32, 27, 3, 9,
|
|
19, 13, 30, 6, 22, 11, 4, 25,
|
|
};
|
|
|
|
static const ut32 SBOX1[] = {
|
|
14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
|
|
0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
|
|
4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
|
|
15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13
|
|
};
|
|
|
|
static const ut32 SBOX2[] = {
|
|
15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
|
|
3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
|
|
0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
|
|
13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9
|
|
};
|
|
|
|
static const ut32 SBOX3[] = {
|
|
10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
|
|
13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
|
|
13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
|
|
1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12
|
|
};
|
|
|
|
static const ut32 SBOX4[] = {
|
|
7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
|
|
13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
|
|
10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
|
|
3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14
|
|
};
|
|
|
|
static const ut32 SBOX5[] = {
|
|
2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
|
|
14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
|
|
4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
|
|
11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3
|
|
};
|
|
|
|
static const ut32 SBOX6[] = {
|
|
12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
|
|
10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
|
|
9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
|
|
4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13
|
|
};
|
|
|
|
static const ut32 SBOX7[] = {
|
|
4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
|
|
13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
|
|
1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
|
|
6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12
|
|
};
|
|
|
|
static const ut32 SBOX8[] = {
|
|
13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
|
|
1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
|
|
7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
|
|
2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11
|
|
};
|
|
|
|
static const ut8 ROTL[] = { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };
|
|
static const ut8 ROTR[] = { 0, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };
|
|
|
|
const ut8 PC_1[] = {
|
|
57, 49, 41, 33, 25, 17, 9,
|
|
1, 58, 50, 42, 34, 26, 18,
|
|
10, 2, 59, 51, 43, 35, 27,
|
|
19, 11, 3, 60, 52, 44, 36,
|
|
63, 55, 47, 39, 31, 23, 15,
|
|
7, 62, 54, 46, 38, 30, 22,
|
|
14, 6, 61, 53, 45, 37, 29,
|
|
21, 13, 5, 28, 20, 12, 4
|
|
};
|
|
|
|
const ut8 PC_2[] = {
|
|
14, 17, 11, 24, 1, 5,
|
|
3, 28, 15, 6, 21, 10,
|
|
23, 19, 12, 4, 26, 8,
|
|
16, 7, 27, 20, 13, 2,
|
|
41, 52, 31, 37, 47, 55,
|
|
30, 40, 51, 45, 33, 48,
|
|
44, 49, 39, 56, 34, 53,
|
|
46, 42, 50, 36, 29, 32
|
|
};
|
|
|
|
ut64 des_rotl (ut64 k, int round)
|
|
{
|
|
ut32 r, l;
|
|
r = k & 0xfffffff;
|
|
l = (ut32)((ut64)(k & 0xfffffff0000000)>>28);
|
|
k = 0LL;
|
|
k |= ((((ut64)r << ROTL[round&0xf]) | (r >> (28 - ROTL[round&0xf]))) & 0xfffffff);
|
|
k |= ((ut64)((((ut64)l << ROTL[round&0xf]) | ((ut64)l >> (28 - ROTL[round&0xf]))) & 0xfffffff)<<28);
|
|
return k;
|
|
}
|
|
|
|
ut64 des_rotr (ut64 k, int round)
|
|
{
|
|
ut32 r, l;
|
|
r = k & 0xfffffff;
|
|
l = (ut32)(((ut64)(k & 0xfffffff0000000))>>28);
|
|
k = 0LL;
|
|
k |= (((r >> ROTR[round&0xf]) | (r << (28 - ROTR[round & 0xf]))) & 0xfffffff);
|
|
k |= ((ut64)(((l >> ROTR[round&0xf]) | (l << (28 - ROTR[round & 0xf]))) & 0xfffffff)<<28);
|
|
return k;
|
|
}
|
|
|
|
R_API ut64 r_des_get_roundkey (ut64 key, int round, int enc) {
|
|
ut64 rk = r_des_pc1 (key);
|
|
int i;
|
|
if (enc) {
|
|
for (i = 0; i < round; i++)
|
|
rk = des_rotl (rk, i);
|
|
return r_des_pc2 (rk);
|
|
}
|
|
for (i = 0; i < round; i++)
|
|
rk = des_rotr (rk, i);
|
|
return r_des_pc2 (rk);
|
|
}
|
|
|
|
R_API ut64 r_des_pc1 (ut64 k)
|
|
{
|
|
int i;
|
|
ut64 ret_key = 0LL;
|
|
for (i=0; i < 56; i++) {
|
|
ret_key |= ((ut64)((k & ((ut64)0x1 << (PC_1[i]-1))) >> (PC_1[i]-1)) << i);
|
|
}
|
|
return ret_key;
|
|
}
|
|
|
|
R_API ut64 r_des_pc2 (ut64 k)
|
|
{
|
|
int i;
|
|
ut64 ret_key = 0LL;
|
|
for (i=0; i<48; i++)
|
|
ret_key |= ((ut64)((k & ((ut64)0x1 << (PC_2[i]-1))) >> (PC_2[i]-1)) << i);
|
|
return ret_key;
|
|
}
|
|
|
|
R_API ut64 r_des_round (ut64 plaintext, ut64 round_key) {
|
|
ut64 state = r_des_ip (plaintext, 0);
|
|
ut32 r = state & 0xffffffff;
|
|
ut32 l = (state & 0xffffffff00000000ull) >> 32;
|
|
ut32 t = r_des_f(r,round_key);
|
|
|
|
state = r;
|
|
state = (state << 32) | (t ^ l);
|
|
|
|
return r_des_ip(state,1);
|
|
}
|
|
|
|
R_API ut64 r_des_ip (ut64 state, int inv) {
|
|
ut64 ret = 0;
|
|
ut32 bit = 0;
|
|
const ut32 *p = (inv ? INV_IP : IP);
|
|
|
|
while(bit < 64) {
|
|
ret |= (state & (1ul << (p[bit] - 1)) ? 1ul << bit : 0);
|
|
bit += 1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
R_API ut64 r_des_expansion (ut32 half) {
|
|
ut64 ret = 0;
|
|
ut32 bit = 0;
|
|
|
|
while(bit < 48) {
|
|
ret |= (half & (1ul << (E[bit] - 1)) ? 1ul << bit : 0);
|
|
bit += 1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
R_API ut32 r_des_p (ut32 half) {
|
|
ut32 ret = 0;
|
|
ut32 bit = 0;
|
|
|
|
while(bit < 32) {
|
|
ret |= (half & (1ul << (P[bit] - 1)) ? 1ul << bit : 0);
|
|
bit += 1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
R_API ut32 r_des_sbox (ut8 in, const ut32* box) {
|
|
ut32 idx = (in & 1) | ((in & 32) >> 4);
|
|
|
|
idx = idx * 16 + ((in >> 1) & 15);
|
|
return box[idx];
|
|
}
|
|
|
|
R_API ut64 r_des_f (ut32 half, ut64 round_key) {
|
|
ut64 t = r_des_expansion(half) ^ round_key;
|
|
ut32 ret = 0;
|
|
|
|
ret |= r_des_sbox((t >> 0) & 63,SBOX8) << 0;
|
|
ret |= r_des_sbox((t >> 6) & 63,SBOX7) << 4;
|
|
ret |= r_des_sbox((t >> 12) & 63,SBOX6) << 8;
|
|
ret |= r_des_sbox((t >> 18) & 63,SBOX5) << 12;
|
|
ret |= r_des_sbox((t >> 24) & 63,SBOX4) << 16;
|
|
ret |= r_des_sbox((t >> 30) & 63,SBOX3) << 20;
|
|
ret |= r_des_sbox((t >> 36) & 63,SBOX2) << 24;
|
|
ret |= r_des_sbox((t >> 42) & 63,SBOX1) << 28;
|
|
|
|
return r_des_p (ret);
|
|
} |