#define CAMELLIA_BLOCK_SIZE 16
#define CAMELLIA_TABLE_BYTE_LEN 272
+/*
+ * NB: L and R below stand for 'left' and 'right' as in written numbers.
+ * That is, in (xxxL,xxxR) pair xxxL holds most significant digits,
+ * _not_ least significant ones!
+ */
+
/* key constants */
/*
* macros
*/
-
-# define GETU32(pt) (((u32)(pt)[0] << 24) \
- ^ ((u32)(pt)[1] << 16) \
- ^ ((u32)(pt)[2] << 8) \
- ^ ((u32)(pt)[3]))
+#define GETU32(v, pt) \
+ do { \
+ /* latest breed of gcc is clever enough to use move */ \
+ memcpy(&(v), (pt), 4); \
+ (v) = be32_to_cpu(v); \
+ } while(0)
/* rotation right shift 1byte */
-#define CAMELLIA_RR8(x) (((x) >> 8) + ((x) << 24))
+#define ROR8(x) (((x) >> 8) + ((x) << 24))
/* rotation left shift 1bit */
-#define CAMELLIA_RL1(x) (((x) << 1) + ((x) >> 31))
+#define ROL1(x) (((x) << 1) + ((x) >> 31))
/* rotation left shift 1byte */
-#define CAMELLIA_RL8(x) (((x) << 8) + ((x) >> 24))
+#define ROL8(x) (((x) << 8) + ((x) >> 24))
-#define CAMELLIA_ROLDQ(ll, lr, rl, rr, w0, w1, bits) \
+#define ROLDQ(ll, lr, rl, rr, w0, w1, bits) \
do { \
w0 = ll; \
ll = (ll << bits) + (lr >> (32 - bits)); \
rr = (rr << bits) + (w0 >> (32 - bits)); \
} while(0)
-#define CAMELLIA_ROLDQo32(ll, lr, rl, rr, w0, w1, bits) \
+#define ROLDQo32(ll, lr, rl, rr, w0, w1, bits) \
do { \
w0 = ll; \
w1 = lr; \
rr = (w0 << (bits - 32)) + (w1 >> (64 - bits)); \
} while(0)
-
#define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) \
do { \
il = xl ^ kl; \
ir = xr ^ kr; \
t0 = il >> 16; \
t1 = ir >> 16; \
- yl = camellia_sp1110[ir & 0xff] \
- ^ camellia_sp0222[(t1 >> 8) & 0xff] \
- ^ camellia_sp3033[t1 & 0xff] \
- ^ camellia_sp4404[(ir >> 8) & 0xff]; \
- yr = camellia_sp1110[(t0 >> 8) & 0xff] \
- ^ camellia_sp0222[t0 & 0xff] \
- ^ camellia_sp3033[(il >> 8) & 0xff] \
- ^ camellia_sp4404[il & 0xff]; \
+ yl = camellia_sp1110[(u8)(ir )] \
+ ^ camellia_sp0222[ (t1 >> 8)] \
+ ^ camellia_sp3033[(u8)(t1 )] \
+ ^ camellia_sp4404[(u8)(ir >> 8)]; \
+ yr = camellia_sp1110[ (t0 >> 8)] \
+ ^ camellia_sp0222[(u8)(t0 )] \
+ ^ camellia_sp3033[(u8)(il >> 8)] \
+ ^ camellia_sp4404[(u8)(il )]; \
yl ^= yr; \
- yr = CAMELLIA_RR8(yr); \
+ yr = ROR8(yr); \
yr ^= yl; \
} while(0)
+#define SUBKEY_L(INDEX) (subkey[(INDEX)*2])
+#define SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1])
-/*
- * for speed up
- *
- */
-#define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) \
- do { \
- t0 = kll; \
- t2 = krr; \
- t0 &= ll; \
- t2 |= rr; \
- rl ^= t2; \
- lr ^= CAMELLIA_RL1(t0); \
- t3 = krl; \
- t1 = klr; \
- t3 &= rl; \
- t1 |= lr; \
- ll ^= t1; \
- rr ^= CAMELLIA_RL1(t3); \
- } while(0)
+static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
+{
+ u32 dw, tl, tr;
+ u32 kw4l, kw4r;
+ int i;
-#define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) \
- do { \
- ir = camellia_sp1110[xr & 0xff]; \
- il = camellia_sp1110[(xl>>24) & 0xff]; \
- ir ^= camellia_sp0222[(xr>>24) & 0xff]; \
- il ^= camellia_sp0222[(xl>>16) & 0xff]; \
- ir ^= camellia_sp3033[(xr>>16) & 0xff]; \
- il ^= camellia_sp3033[(xl>>8) & 0xff]; \
- ir ^= camellia_sp4404[(xr>>8) & 0xff]; \
- il ^= camellia_sp4404[xl & 0xff]; \
- il ^= kl; \
- ir ^= il ^ kr; \
- yl ^= ir; \
- yr ^= CAMELLIA_RR8(il) ^ ir; \
- } while(0)
+ /* absorb kw2 to other subkeys */
+ /* round 2 */
+ subL[3] ^= subL[1]; subR[3] ^= subR[1];
+ /* round 4 */
+ subL[5] ^= subL[1]; subR[5] ^= subR[1];
+ /* round 6 */
+ subL[7] ^= subL[1]; subR[7] ^= subR[1];
+ subL[1] ^= subR[1] & ~subR[9];
+ dw = subL[1] & subL[9],
+ subR[1] ^= ROL1(dw); /* modified for FLinv(kl2) */
+ /* round 8 */
+ subL[11] ^= subL[1]; subR[11] ^= subR[1];
+ /* round 10 */
+ subL[13] ^= subL[1]; subR[13] ^= subR[1];
+ /* round 12 */
+ subL[15] ^= subL[1]; subR[15] ^= subR[1];
+ subL[1] ^= subR[1] & ~subR[17];
+ dw = subL[1] & subL[17],
+ subR[1] ^= ROL1(dw); /* modified for FLinv(kl4) */
+ /* round 14 */
+ subL[19] ^= subL[1]; subR[19] ^= subR[1];
+ /* round 16 */
+ subL[21] ^= subL[1]; subR[21] ^= subR[1];
+ /* round 18 */
+ subL[23] ^= subL[1]; subR[23] ^= subR[1];
+ if (max == 24) {
+ /* kw3 */
+ subL[24] ^= subL[1]; subR[24] ^= subR[1];
+
+ /* absorb kw4 to other subkeys */
+ kw4l = subL[25]; kw4r = subR[25];
+ } else {
+ subL[1] ^= subR[1] & ~subR[25];
+ dw = subL[1] & subL[25],
+ subR[1] ^= ROL1(dw); /* modified for FLinv(kl6) */
+ /* round 20 */
+ subL[27] ^= subL[1]; subR[27] ^= subR[1];
+ /* round 22 */
+ subL[29] ^= subL[1]; subR[29] ^= subR[1];
+ /* round 24 */
+ subL[31] ^= subL[1]; subR[31] ^= subR[1];
+ /* kw3 */
+ subL[32] ^= subL[1]; subR[32] ^= subR[1];
+
+ /* absorb kw4 to other subkeys */
+ kw4l = subL[33]; kw4r = subR[33];
+ /* round 23 */
+ subL[30] ^= kw4l; subR[30] ^= kw4r;
+ /* round 21 */
+ subL[28] ^= kw4l; subR[28] ^= kw4r;
+ /* round 19 */
+ subL[26] ^= kw4l; subR[26] ^= kw4r;
+ kw4l ^= kw4r & ~subR[24];
+ dw = kw4l & subL[24],
+ kw4r ^= ROL1(dw); /* modified for FL(kl5) */
+ }
+ /* round 17 */
+ subL[22] ^= kw4l; subR[22] ^= kw4r;
+ /* round 15 */
+ subL[20] ^= kw4l; subR[20] ^= kw4r;
+ /* round 13 */
+ subL[18] ^= kw4l; subR[18] ^= kw4r;
+ kw4l ^= kw4r & ~subR[16];
+ dw = kw4l & subL[16],
+ kw4r ^= ROL1(dw); /* modified for FL(kl3) */
+ /* round 11 */
+ subL[14] ^= kw4l; subR[14] ^= kw4r;
+ /* round 9 */
+ subL[12] ^= kw4l; subR[12] ^= kw4r;
+ /* round 7 */
+ subL[10] ^= kw4l; subR[10] ^= kw4r;
+ kw4l ^= kw4r & ~subR[8];
+ dw = kw4l & subL[8],
+ kw4r ^= ROL1(dw); /* modified for FL(kl1) */
+ /* round 5 */
+ subL[6] ^= kw4l; subR[6] ^= kw4r;
+ /* round 3 */
+ subL[4] ^= kw4l; subR[4] ^= kw4r;
+ /* round 1 */
+ subL[2] ^= kw4l; subR[2] ^= kw4r;
+ /* kw1 */
+ subL[0] ^= kw4l; subR[0] ^= kw4r;
+ /* key XOR is end of F-function */
+ SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */
+ SUBKEY_R(0) = subR[0] ^ subR[2];
+ SUBKEY_L(2) = subL[3]; /* round 1 */
+ SUBKEY_R(2) = subR[3];
+ SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */
+ SUBKEY_R(3) = subR[2] ^ subR[4];
+ SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */
+ SUBKEY_R(4) = subR[3] ^ subR[5];
+ SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */
+ SUBKEY_R(5) = subR[4] ^ subR[6];
+ SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */
+ SUBKEY_R(6) = subR[5] ^ subR[7];
+ tl = subL[10] ^ (subR[10] & ~subR[8]);
+ dw = tl & subL[8], /* FL(kl1) */
+ tr = subR[10] ^ ROL1(dw);
+ SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */
+ SUBKEY_R(7) = subR[6] ^ tr;
+ SUBKEY_L(8) = subL[8]; /* FL(kl1) */
+ SUBKEY_R(8) = subR[8];
+ SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */
+ SUBKEY_R(9) = subR[9];
+ tl = subL[7] ^ (subR[7] & ~subR[9]);
+ dw = tl & subL[9], /* FLinv(kl2) */
+ tr = subR[7] ^ ROL1(dw);
+ SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */
+ SUBKEY_R(10) = tr ^ subR[11];
+ SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */
+ SUBKEY_R(11) = subR[10] ^ subR[12];
+ SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */
+ SUBKEY_R(12) = subR[11] ^ subR[13];
+ SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */
+ SUBKEY_R(13) = subR[12] ^ subR[14];
+ SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */
+ SUBKEY_R(14) = subR[13] ^ subR[15];
+ tl = subL[18] ^ (subR[18] & ~subR[16]);
+ dw = tl & subL[16], /* FL(kl3) */
+ tr = subR[18] ^ ROL1(dw);
+ SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */
+ SUBKEY_R(15) = subR[14] ^ tr;
+ SUBKEY_L(16) = subL[16]; /* FL(kl3) */
+ SUBKEY_R(16) = subR[16];
+ SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */
+ SUBKEY_R(17) = subR[17];
+ tl = subL[15] ^ (subR[15] & ~subR[17]);
+ dw = tl & subL[17], /* FLinv(kl4) */
+ tr = subR[15] ^ ROL1(dw);
+ SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */
+ SUBKEY_R(18) = tr ^ subR[19];
+ SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */
+ SUBKEY_R(19) = subR[18] ^ subR[20];
+ SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */
+ SUBKEY_R(20) = subR[19] ^ subR[21];
+ SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */
+ SUBKEY_R(21) = subR[20] ^ subR[22];
+ SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */
+ SUBKEY_R(22) = subR[21] ^ subR[23];
+ if (max == 24) {
+ SUBKEY_L(23) = subL[22]; /* round 18 */
+ SUBKEY_R(23) = subR[22];
+ SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */
+ SUBKEY_R(24) = subR[24] ^ subR[23];
+ } else {
+ tl = subL[26] ^ (subR[26] & ~subR[24]);
+ dw = tl & subL[24], /* FL(kl5) */
+ tr = subR[26] ^ ROL1(dw);
+ SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */
+ SUBKEY_R(23) = subR[22] ^ tr;
+ SUBKEY_L(24) = subL[24]; /* FL(kl5) */
+ SUBKEY_R(24) = subR[24];
+ SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */
+ SUBKEY_R(25) = subR[25];
+ tl = subL[23] ^ (subR[23] & ~subR[25]);
+ dw = tl & subL[25], /* FLinv(kl6) */
+ tr = subR[23] ^ ROL1(dw);
+ SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */
+ SUBKEY_R(26) = tr ^ subR[27];
+ SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */
+ SUBKEY_R(27) = subR[26] ^ subR[28];
+ SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */
+ SUBKEY_R(28) = subR[27] ^ subR[29];
+ SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */
+ SUBKEY_R(29) = subR[28] ^ subR[30];
+ SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */
+ SUBKEY_R(30) = subR[29] ^ subR[31];
+ SUBKEY_L(31) = subL[30]; /* round 24 */
+ SUBKEY_R(31) = subR[30];
+ SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */
+ SUBKEY_R(32) = subR[32] ^ subR[31];
+ }
-#define CAMELLIA_SUBKEY_L(INDEX) (subkey[(INDEX)*2])
-#define CAMELLIA_SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1])
+ /* apply the inverse of the last half of P-function */
+ i = 2;
+ do {
+ dw = SUBKEY_L(i + 0) ^ SUBKEY_R(i + 0); dw = ROL8(dw);/* round 1 */
+ SUBKEY_R(i + 0) = SUBKEY_L(i + 0) ^ dw; SUBKEY_L(i + 0) = dw;
+ dw = SUBKEY_L(i + 1) ^ SUBKEY_R(i + 1); dw = ROL8(dw);/* round 2 */
+ SUBKEY_R(i + 1) = SUBKEY_L(i + 1) ^ dw; SUBKEY_L(i + 1) = dw;
+ dw = SUBKEY_L(i + 2) ^ SUBKEY_R(i + 2); dw = ROL8(dw);/* round 3 */
+ SUBKEY_R(i + 2) = SUBKEY_L(i + 2) ^ dw; SUBKEY_L(i + 2) = dw;
+ dw = SUBKEY_L(i + 3) ^ SUBKEY_R(i + 3); dw = ROL8(dw);/* round 4 */
+ SUBKEY_R(i + 3) = SUBKEY_L(i + 3) ^ dw; SUBKEY_L(i + 3) = dw;
+ dw = SUBKEY_L(i + 4) ^ SUBKEY_R(i + 4); dw = ROL8(dw);/* round 5 */
+ SUBKEY_R(i + 4) = SUBKEY_L(i + 4) ^ dw; SUBKEY_L(i + 4) = dw;
+ dw = SUBKEY_L(i + 5) ^ SUBKEY_R(i + 5); dw = ROL8(dw);/* round 6 */
+ SUBKEY_R(i + 5) = SUBKEY_L(i + 5) ^ dw; SUBKEY_L(i + 5) = dw;
+ i += 8;
+ } while (i < max);
+}
static void camellia_setup128(const unsigned char *key, u32 *subkey)
{
u32 kll, klr, krl, krr;
u32 il, ir, t0, t1, w0, w1;
- u32 kw4l, kw4r, dw, tl, tr;
u32 subL[26];
u32 subR[26];
/**
- * k == kll || klr || krl || krr (|| is concatination)
- */
- kll = GETU32(key );
- klr = GETU32(key + 4);
- krl = GETU32(key + 8);
- krr = GETU32(key + 12);
- /**
- * generate KL dependent subkeys
+ * k == kll || klr || krl || krr (|| is concatenation)
*/
+ GETU32(kll, key );
+ GETU32(klr, key + 4);
+ GETU32(krl, key + 8);
+ GETU32(krr, key + 12);
+
+ /* generate KL dependent subkeys */
/* kw1 */
subL[0] = kll; subR[0] = klr;
/* kw2 */
subL[1] = krl; subR[1] = krr;
/* rotation left shift 15bit */
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
/* k3 */
subL[4] = kll; subR[4] = klr;
/* k4 */
subL[5] = krl; subR[5] = krr;
/* rotation left shift 15+30bit */
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 30);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 30);
/* k7 */
subL[10] = kll; subR[10] = klr;
/* k8 */
subL[11] = krl; subR[11] = krr;
/* rotation left shift 15+30+15bit */
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
/* k10 */
subL[13] = krl; subR[13] = krr;
/* rotation left shift 15+30+15+17 bit */
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
/* kl3 */
subL[16] = kll; subR[16] = klr;
/* kl4 */
subL[17] = krl; subR[17] = krr;
/* rotation left shift 15+30+15+17+17 bit */
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
/* k13 */
subL[18] = kll; subR[18] = klr;
/* k14 */
subL[19] = krl; subR[19] = krr;
/* rotation left shift 15+30+15+17+17+17 bit */
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
/* k17 */
subL[22] = kll; subR[22] = klr;
/* k18 */
/* k1, k2 */
subL[2] = kll; subR[2] = klr;
subL[3] = krl; subR[3] = krr;
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
/* k5,k6 */
subL[6] = kll; subR[6] = klr;
subL[7] = krl; subR[7] = krr;
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
/* kl1, kl2 */
subL[8] = kll; subR[8] = klr;
subL[9] = krl; subR[9] = krr;
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
/* k9 */
subL[12] = kll; subR[12] = klr;
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
/* k11, k12 */
subL[14] = kll; subR[14] = klr;
subL[15] = krl; subR[15] = krr;
- CAMELLIA_ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
+ ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
/* k15, k16 */
subL[20] = kll; subR[20] = klr;
subL[21] = krl; subR[21] = krr;
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
/* kw3, kw4 */
subL[24] = kll; subR[24] = klr;
subL[25] = krl; subR[25] = krr;
- /* absorb kw2 to other subkeys */
- /* round 2 */
- subL[3] ^= subL[1]; subR[3] ^= subR[1];
- /* round 4 */
- subL[5] ^= subL[1]; subR[5] ^= subR[1];
- /* round 6 */
- subL[7] ^= subL[1]; subR[7] ^= subR[1];
- subL[1] ^= subR[1] & ~subR[9];
- dw = subL[1] & subL[9],
- subR[1] ^= CAMELLIA_RL1(dw); /* modified for FLinv(kl2) */
- /* round 8 */
- subL[11] ^= subL[1]; subR[11] ^= subR[1];
- /* round 10 */
- subL[13] ^= subL[1]; subR[13] ^= subR[1];
- /* round 12 */
- subL[15] ^= subL[1]; subR[15] ^= subR[1];
- subL[1] ^= subR[1] & ~subR[17];
- dw = subL[1] & subL[17],
- subR[1] ^= CAMELLIA_RL1(dw); /* modified for FLinv(kl4) */
- /* round 14 */
- subL[19] ^= subL[1]; subR[19] ^= subR[1];
- /* round 16 */
- subL[21] ^= subL[1]; subR[21] ^= subR[1];
- /* round 18 */
- subL[23] ^= subL[1]; subR[23] ^= subR[1];
- /* kw3 */
- subL[24] ^= subL[1]; subR[24] ^= subR[1];
-
- /* absorb kw4 to other subkeys */
- kw4l = subL[25]; kw4r = subR[25];
- /* round 17 */
- subL[22] ^= kw4l; subR[22] ^= kw4r;
- /* round 15 */
- subL[20] ^= kw4l; subR[20] ^= kw4r;
- /* round 13 */
- subL[18] ^= kw4l; subR[18] ^= kw4r;
- kw4l ^= kw4r & ~subR[16];
- dw = kw4l & subL[16],
- kw4r ^= CAMELLIA_RL1(dw); /* modified for FL(kl3) */
- /* round 11 */
- subL[14] ^= kw4l; subR[14] ^= kw4r;
- /* round 9 */
- subL[12] ^= kw4l; subR[12] ^= kw4r;
- /* round 7 */
- subL[10] ^= kw4l; subR[10] ^= kw4r;
- kw4l ^= kw4r & ~subR[8];
- dw = kw4l & subL[8],
- kw4r ^= CAMELLIA_RL1(dw); /* modified for FL(kl1) */
- /* round 5 */
- subL[6] ^= kw4l; subR[6] ^= kw4r;
- /* round 3 */
- subL[4] ^= kw4l; subR[4] ^= kw4r;
- /* round 1 */
- subL[2] ^= kw4l; subR[2] ^= kw4r;
- /* kw1 */
- subL[0] ^= kw4l; subR[0] ^= kw4r;
-
- /* key XOR is end of F-function */
- CAMELLIA_SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */
- CAMELLIA_SUBKEY_R(0) = subR[0] ^ subR[2];
- CAMELLIA_SUBKEY_L(2) = subL[3]; /* round 1 */
- CAMELLIA_SUBKEY_R(2) = subR[3];
- CAMELLIA_SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */
- CAMELLIA_SUBKEY_R(3) = subR[2] ^ subR[4];
- CAMELLIA_SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */
- CAMELLIA_SUBKEY_R(4) = subR[3] ^ subR[5];
- CAMELLIA_SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */
- CAMELLIA_SUBKEY_R(5) = subR[4] ^ subR[6];
- CAMELLIA_SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */
- CAMELLIA_SUBKEY_R(6) = subR[5] ^ subR[7];
- tl = subL[10] ^ (subR[10] & ~subR[8]);
- dw = tl & subL[8], /* FL(kl1) */
- tr = subR[10] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */
- CAMELLIA_SUBKEY_R(7) = subR[6] ^ tr;
- CAMELLIA_SUBKEY_L(8) = subL[8]; /* FL(kl1) */
- CAMELLIA_SUBKEY_R(8) = subR[8];
- CAMELLIA_SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */
- CAMELLIA_SUBKEY_R(9) = subR[9];
- tl = subL[7] ^ (subR[7] & ~subR[9]);
- dw = tl & subL[9], /* FLinv(kl2) */
- tr = subR[7] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */
- CAMELLIA_SUBKEY_R(10) = tr ^ subR[11];
- CAMELLIA_SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */
- CAMELLIA_SUBKEY_R(11) = subR[10] ^ subR[12];
- CAMELLIA_SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */
- CAMELLIA_SUBKEY_R(12) = subR[11] ^ subR[13];
- CAMELLIA_SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */
- CAMELLIA_SUBKEY_R(13) = subR[12] ^ subR[14];
- CAMELLIA_SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */
- CAMELLIA_SUBKEY_R(14) = subR[13] ^ subR[15];
- tl = subL[18] ^ (subR[18] & ~subR[16]);
- dw = tl & subL[16], /* FL(kl3) */
- tr = subR[18] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */
- CAMELLIA_SUBKEY_R(15) = subR[14] ^ tr;
- CAMELLIA_SUBKEY_L(16) = subL[16]; /* FL(kl3) */
- CAMELLIA_SUBKEY_R(16) = subR[16];
- CAMELLIA_SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */
- CAMELLIA_SUBKEY_R(17) = subR[17];
- tl = subL[15] ^ (subR[15] & ~subR[17]);
- dw = tl & subL[17], /* FLinv(kl4) */
- tr = subR[15] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */
- CAMELLIA_SUBKEY_R(18) = tr ^ subR[19];
- CAMELLIA_SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */
- CAMELLIA_SUBKEY_R(19) = subR[18] ^ subR[20];
- CAMELLIA_SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */
- CAMELLIA_SUBKEY_R(20) = subR[19] ^ subR[21];
- CAMELLIA_SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */
- CAMELLIA_SUBKEY_R(21) = subR[20] ^ subR[22];
- CAMELLIA_SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */
- CAMELLIA_SUBKEY_R(22) = subR[21] ^ subR[23];
- CAMELLIA_SUBKEY_L(23) = subL[22]; /* round 18 */
- CAMELLIA_SUBKEY_R(23) = subR[22];
- CAMELLIA_SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */
- CAMELLIA_SUBKEY_R(24) = subR[24] ^ subR[23];
-
- /* apply the inverse of the last half of P-function */
- dw = CAMELLIA_SUBKEY_L(2) ^ CAMELLIA_SUBKEY_R(2),
- dw = CAMELLIA_RL8(dw);/* round 1 */
- CAMELLIA_SUBKEY_R(2) = CAMELLIA_SUBKEY_L(2) ^ dw,
- CAMELLIA_SUBKEY_L(2) = dw;
- dw = CAMELLIA_SUBKEY_L(3) ^ CAMELLIA_SUBKEY_R(3),
- dw = CAMELLIA_RL8(dw);/* round 2 */
- CAMELLIA_SUBKEY_R(3) = CAMELLIA_SUBKEY_L(3) ^ dw,
- CAMELLIA_SUBKEY_L(3) = dw;
- dw = CAMELLIA_SUBKEY_L(4) ^ CAMELLIA_SUBKEY_R(4),
- dw = CAMELLIA_RL8(dw);/* round 3 */
- CAMELLIA_SUBKEY_R(4) = CAMELLIA_SUBKEY_L(4) ^ dw,
- CAMELLIA_SUBKEY_L(4) = dw;
- dw = CAMELLIA_SUBKEY_L(5) ^ CAMELLIA_SUBKEY_R(5),
- dw = CAMELLIA_RL8(dw);/* round 4 */
- CAMELLIA_SUBKEY_R(5) = CAMELLIA_SUBKEY_L(5) ^ dw,
- CAMELLIA_SUBKEY_L(5) = dw;
- dw = CAMELLIA_SUBKEY_L(6) ^ CAMELLIA_SUBKEY_R(6),
- dw = CAMELLIA_RL8(dw);/* round 5 */
- CAMELLIA_SUBKEY_R(6) = CAMELLIA_SUBKEY_L(6) ^ dw,
- CAMELLIA_SUBKEY_L(6) = dw;
- dw = CAMELLIA_SUBKEY_L(7) ^ CAMELLIA_SUBKEY_R(7),
- dw = CAMELLIA_RL8(dw);/* round 6 */
- CAMELLIA_SUBKEY_R(7) = CAMELLIA_SUBKEY_L(7) ^ dw,
- CAMELLIA_SUBKEY_L(7) = dw;
- dw = CAMELLIA_SUBKEY_L(10) ^ CAMELLIA_SUBKEY_R(10),
- dw = CAMELLIA_RL8(dw);/* round 7 */
- CAMELLIA_SUBKEY_R(10) = CAMELLIA_SUBKEY_L(10) ^ dw,
- CAMELLIA_SUBKEY_L(10) = dw;
- dw = CAMELLIA_SUBKEY_L(11) ^ CAMELLIA_SUBKEY_R(11),
- dw = CAMELLIA_RL8(dw);/* round 8 */
- CAMELLIA_SUBKEY_R(11) = CAMELLIA_SUBKEY_L(11) ^ dw,
- CAMELLIA_SUBKEY_L(11) = dw;
- dw = CAMELLIA_SUBKEY_L(12) ^ CAMELLIA_SUBKEY_R(12),
- dw = CAMELLIA_RL8(dw);/* round 9 */
- CAMELLIA_SUBKEY_R(12) = CAMELLIA_SUBKEY_L(12) ^ dw,
- CAMELLIA_SUBKEY_L(12) = dw;
- dw = CAMELLIA_SUBKEY_L(13) ^ CAMELLIA_SUBKEY_R(13),
- dw = CAMELLIA_RL8(dw);/* round 10 */
- CAMELLIA_SUBKEY_R(13) = CAMELLIA_SUBKEY_L(13) ^ dw,
- CAMELLIA_SUBKEY_L(13) = dw;
- dw = CAMELLIA_SUBKEY_L(14) ^ CAMELLIA_SUBKEY_R(14),
- dw = CAMELLIA_RL8(dw);/* round 11 */
- CAMELLIA_SUBKEY_R(14) = CAMELLIA_SUBKEY_L(14) ^ dw,
- CAMELLIA_SUBKEY_L(14) = dw;
- dw = CAMELLIA_SUBKEY_L(15) ^ CAMELLIA_SUBKEY_R(15),
- dw = CAMELLIA_RL8(dw);/* round 12 */
- CAMELLIA_SUBKEY_R(15) = CAMELLIA_SUBKEY_L(15) ^ dw,
- CAMELLIA_SUBKEY_L(15) = dw;
- dw = CAMELLIA_SUBKEY_L(18) ^ CAMELLIA_SUBKEY_R(18),
- dw = CAMELLIA_RL8(dw);/* round 13 */
- CAMELLIA_SUBKEY_R(18) = CAMELLIA_SUBKEY_L(18) ^ dw,
- CAMELLIA_SUBKEY_L(18) = dw;
- dw = CAMELLIA_SUBKEY_L(19) ^ CAMELLIA_SUBKEY_R(19),
- dw = CAMELLIA_RL8(dw);/* round 14 */
- CAMELLIA_SUBKEY_R(19) = CAMELLIA_SUBKEY_L(19) ^ dw,
- CAMELLIA_SUBKEY_L(19) = dw;
- dw = CAMELLIA_SUBKEY_L(20) ^ CAMELLIA_SUBKEY_R(20),
- dw = CAMELLIA_RL8(dw);/* round 15 */
- CAMELLIA_SUBKEY_R(20) = CAMELLIA_SUBKEY_L(20) ^ dw,
- CAMELLIA_SUBKEY_L(20) = dw;
- dw = CAMELLIA_SUBKEY_L(21) ^ CAMELLIA_SUBKEY_R(21),
- dw = CAMELLIA_RL8(dw);/* round 16 */
- CAMELLIA_SUBKEY_R(21) = CAMELLIA_SUBKEY_L(21) ^ dw,
- CAMELLIA_SUBKEY_L(21) = dw;
- dw = CAMELLIA_SUBKEY_L(22) ^ CAMELLIA_SUBKEY_R(22),
- dw = CAMELLIA_RL8(dw);/* round 17 */
- CAMELLIA_SUBKEY_R(22) = CAMELLIA_SUBKEY_L(22) ^ dw,
- CAMELLIA_SUBKEY_L(22) = dw;
- dw = CAMELLIA_SUBKEY_L(23) ^ CAMELLIA_SUBKEY_R(23),
- dw = CAMELLIA_RL8(dw);/* round 18 */
- CAMELLIA_SUBKEY_R(23) = CAMELLIA_SUBKEY_L(23) ^ dw,
- CAMELLIA_SUBKEY_L(23) = dw;
+ camellia_setup_tail(subkey, subL, subR, 24);
}
static void camellia_setup256(const unsigned char *key, u32 *subkey)
{
- u32 kll,klr,krl,krr; /* left half of key */
- u32 krll,krlr,krrl,krrr; /* right half of key */
+ u32 kll, klr, krl, krr; /* left half of key */
+ u32 krll, krlr, krrl, krrr; /* right half of key */
u32 il, ir, t0, t1, w0, w1; /* temporary variables */
- u32 kw4l, kw4r, dw, tl, tr;
u32 subL[34];
u32 subR[34];
/**
* key = (kll || klr || krl || krr || krll || krlr || krrl || krrr)
- * (|| is concatination)
+ * (|| is concatenation)
*/
-
- kll = GETU32(key );
- klr = GETU32(key + 4);
- krl = GETU32(key + 8);
- krr = GETU32(key + 12);
- krll = GETU32(key + 16);
- krlr = GETU32(key + 20);
- krrl = GETU32(key + 24);
- krrr = GETU32(key + 28);
+ GETU32(kll, key );
+ GETU32(klr, key + 4);
+ GETU32(krl, key + 8);
+ GETU32(krr, key + 12);
+ GETU32(krll, key + 16);
+ GETU32(krlr, key + 20);
+ GETU32(krrl, key + 24);
+ GETU32(krrr, key + 28);
/* generate KL dependent subkeys */
/* kw1 */
subL[0] = kll; subR[0] = klr;
/* kw2 */
subL[1] = krl; subR[1] = krr;
- CAMELLIA_ROLDQo32(kll, klr, krl, krr, w0, w1, 45);
+ ROLDQo32(kll, klr, krl, krr, w0, w1, 45);
/* k9 */
subL[12] = kll; subR[12] = klr;
/* k10 */
subL[13] = krl; subR[13] = krr;
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
/* kl3 */
subL[16] = kll; subR[16] = klr;
/* kl4 */
subL[17] = krl; subR[17] = krr;
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
/* k17 */
subL[22] = kll; subR[22] = klr;
/* k18 */
subL[23] = krl; subR[23] = krr;
- CAMELLIA_ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
+ ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
/* k23 */
subL[30] = kll; subR[30] = klr;
/* k24 */
subL[31] = krl; subR[31] = krr;
/* generate KR dependent subkeys */
- CAMELLIA_ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
/* k3 */
subL[4] = krll; subR[4] = krlr;
/* k4 */
subL[5] = krrl; subR[5] = krrr;
- CAMELLIA_ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
/* kl1 */
subL[8] = krll; subR[8] = krlr;
/* kl2 */
subL[9] = krrl; subR[9] = krrr;
- CAMELLIA_ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
/* k13 */
subL[18] = krll; subR[18] = krlr;
/* k14 */
subL[19] = krrl; subR[19] = krrr;
- CAMELLIA_ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
+ ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
/* k19 */
subL[26] = krll; subR[26] = krlr;
/* k20 */
subL[27] = krrl; subR[27] = krrr;
- CAMELLIA_ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
+ ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
/* generate KA */
kll = subL[0] ^ krll; klr = subR[0] ^ krlr;
krll ^= w0; krlr ^= w1;
/* generate KA dependent subkeys */
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
/* k5 */
subL[6] = kll; subR[6] = klr;
/* k6 */
subL[7] = krl; subR[7] = krr;
- CAMELLIA_ROLDQ(kll, klr, krl, krr, w0, w1, 30);
+ ROLDQ(kll, klr, krl, krr, w0, w1, 30);
/* k11 */
subL[14] = kll; subR[14] = klr;
/* k12 */
/* kl6 */
subL[25] = krr; subR[25] = kll;
/* rotation left shift 49 from k11,k12 -> k21,k22 */
- CAMELLIA_ROLDQo32(kll, klr, krl, krr, w0, w1, 49);
+ ROLDQo32(kll, klr, krl, krr, w0, w1, 49);
/* k21 */
subL[28] = kll; subR[28] = klr;
/* k22 */
subL[2] = krll; subR[2] = krlr;
/* k2 */
subL[3] = krrl; subR[3] = krrr;
- CAMELLIA_ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
/* k7 */
subL[10] = krll; subR[10] = krlr;
/* k8 */
subL[11] = krrl; subR[11] = krrr;
- CAMELLIA_ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
/* k15 */
subL[20] = krll; subR[20] = krlr;
/* k16 */
subL[21] = krrl; subR[21] = krrr;
- CAMELLIA_ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51);
+ ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51);
/* kw3 */
subL[32] = krll; subR[32] = krlr;
/* kw4 */
subL[33] = krrl; subR[33] = krrr;
- /* absorb kw2 to other subkeys */
- /* round 2 */
- subL[3] ^= subL[1]; subR[3] ^= subR[1];
- /* round 4 */
- subL[5] ^= subL[1]; subR[5] ^= subR[1];
- /* round 6 */
- subL[7] ^= subL[1]; subR[7] ^= subR[1];
- subL[1] ^= subR[1] & ~subR[9];
- dw = subL[1] & subL[9],
- subR[1] ^= CAMELLIA_RL1(dw); /* modified for FLinv(kl2) */
- /* round 8 */
- subL[11] ^= subL[1]; subR[11] ^= subR[1];
- /* round 10 */
- subL[13] ^= subL[1]; subR[13] ^= subR[1];
- /* round 12 */
- subL[15] ^= subL[1]; subR[15] ^= subR[1];
- subL[1] ^= subR[1] & ~subR[17];
- dw = subL[1] & subL[17],
- subR[1] ^= CAMELLIA_RL1(dw); /* modified for FLinv(kl4) */
- /* round 14 */
- subL[19] ^= subL[1]; subR[19] ^= subR[1];
- /* round 16 */
- subL[21] ^= subL[1]; subR[21] ^= subR[1];
- /* round 18 */
- subL[23] ^= subL[1]; subR[23] ^= subR[1];
- subL[1] ^= subR[1] & ~subR[25];
- dw = subL[1] & subL[25],
- subR[1] ^= CAMELLIA_RL1(dw); /* modified for FLinv(kl6) */
- /* round 20 */
- subL[27] ^= subL[1]; subR[27] ^= subR[1];
- /* round 22 */
- subL[29] ^= subL[1]; subR[29] ^= subR[1];
- /* round 24 */
- subL[31] ^= subL[1]; subR[31] ^= subR[1];
- /* kw3 */
- subL[32] ^= subL[1]; subR[32] ^= subR[1];
-
- /* absorb kw4 to other subkeys */
- kw4l = subL[33]; kw4r = subR[33];
- /* round 23 */
- subL[30] ^= kw4l; subR[30] ^= kw4r;
- /* round 21 */
- subL[28] ^= kw4l; subR[28] ^= kw4r;
- /* round 19 */
- subL[26] ^= kw4l; subR[26] ^= kw4r;
- kw4l ^= kw4r & ~subR[24];
- dw = kw4l & subL[24],
- kw4r ^= CAMELLIA_RL1(dw); /* modified for FL(kl5) */
- /* round 17 */
- subL[22] ^= kw4l; subR[22] ^= kw4r;
- /* round 15 */
- subL[20] ^= kw4l; subR[20] ^= kw4r;
- /* round 13 */
- subL[18] ^= kw4l; subR[18] ^= kw4r;
- kw4l ^= kw4r & ~subR[16];
- dw = kw4l & subL[16],
- kw4r ^= CAMELLIA_RL1(dw); /* modified for FL(kl3) */
- /* round 11 */
- subL[14] ^= kw4l; subR[14] ^= kw4r;
- /* round 9 */
- subL[12] ^= kw4l; subR[12] ^= kw4r;
- /* round 7 */
- subL[10] ^= kw4l; subR[10] ^= kw4r;
- kw4l ^= kw4r & ~subR[8];
- dw = kw4l & subL[8],
- kw4r ^= CAMELLIA_RL1(dw); /* modified for FL(kl1) */
- /* round 5 */
- subL[6] ^= kw4l; subR[6] ^= kw4r;
- /* round 3 */
- subL[4] ^= kw4l; subR[4] ^= kw4r;
- /* round 1 */
- subL[2] ^= kw4l; subR[2] ^= kw4r;
- /* kw1 */
- subL[0] ^= kw4l; subR[0] ^= kw4r;
-
- /* key XOR is end of F-function */
- CAMELLIA_SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */
- CAMELLIA_SUBKEY_R(0) = subR[0] ^ subR[2];
- CAMELLIA_SUBKEY_L(2) = subL[3]; /* round 1 */
- CAMELLIA_SUBKEY_R(2) = subR[3];
- CAMELLIA_SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */
- CAMELLIA_SUBKEY_R(3) = subR[2] ^ subR[4];
- CAMELLIA_SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */
- CAMELLIA_SUBKEY_R(4) = subR[3] ^ subR[5];
- CAMELLIA_SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */
- CAMELLIA_SUBKEY_R(5) = subR[4] ^ subR[6];
- CAMELLIA_SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */
- CAMELLIA_SUBKEY_R(6) = subR[5] ^ subR[7];
- tl = subL[10] ^ (subR[10] & ~subR[8]);
- dw = tl & subL[8], /* FL(kl1) */
- tr = subR[10] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */
- CAMELLIA_SUBKEY_R(7) = subR[6] ^ tr;
- CAMELLIA_SUBKEY_L(8) = subL[8]; /* FL(kl1) */
- CAMELLIA_SUBKEY_R(8) = subR[8];
- CAMELLIA_SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */
- CAMELLIA_SUBKEY_R(9) = subR[9];
- tl = subL[7] ^ (subR[7] & ~subR[9]);
- dw = tl & subL[9], /* FLinv(kl2) */
- tr = subR[7] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */
- CAMELLIA_SUBKEY_R(10) = tr ^ subR[11];
- CAMELLIA_SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */
- CAMELLIA_SUBKEY_R(11) = subR[10] ^ subR[12];
- CAMELLIA_SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */
- CAMELLIA_SUBKEY_R(12) = subR[11] ^ subR[13];
- CAMELLIA_SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */
- CAMELLIA_SUBKEY_R(13) = subR[12] ^ subR[14];
- CAMELLIA_SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */
- CAMELLIA_SUBKEY_R(14) = subR[13] ^ subR[15];
- tl = subL[18] ^ (subR[18] & ~subR[16]);
- dw = tl & subL[16], /* FL(kl3) */
- tr = subR[18] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */
- CAMELLIA_SUBKEY_R(15) = subR[14] ^ tr;
- CAMELLIA_SUBKEY_L(16) = subL[16]; /* FL(kl3) */
- CAMELLIA_SUBKEY_R(16) = subR[16];
- CAMELLIA_SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */
- CAMELLIA_SUBKEY_R(17) = subR[17];
- tl = subL[15] ^ (subR[15] & ~subR[17]);
- dw = tl & subL[17], /* FLinv(kl4) */
- tr = subR[15] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */
- CAMELLIA_SUBKEY_R(18) = tr ^ subR[19];
- CAMELLIA_SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */
- CAMELLIA_SUBKEY_R(19) = subR[18] ^ subR[20];
- CAMELLIA_SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */
- CAMELLIA_SUBKEY_R(20) = subR[19] ^ subR[21];
- CAMELLIA_SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */
- CAMELLIA_SUBKEY_R(21) = subR[20] ^ subR[22];
- CAMELLIA_SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */
- CAMELLIA_SUBKEY_R(22) = subR[21] ^ subR[23];
- tl = subL[26] ^ (subR[26]
- & ~subR[24]);
- dw = tl & subL[24], /* FL(kl5) */
- tr = subR[26] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */
- CAMELLIA_SUBKEY_R(23) = subR[22] ^ tr;
- CAMELLIA_SUBKEY_L(24) = subL[24]; /* FL(kl5) */
- CAMELLIA_SUBKEY_R(24) = subR[24];
- CAMELLIA_SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */
- CAMELLIA_SUBKEY_R(25) = subR[25];
- tl = subL[23] ^ (subR[23] &
- ~subR[25]);
- dw = tl & subL[25], /* FLinv(kl6) */
- tr = subR[23] ^ CAMELLIA_RL1(dw);
- CAMELLIA_SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */
- CAMELLIA_SUBKEY_R(26) = tr ^ subR[27];
- CAMELLIA_SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */
- CAMELLIA_SUBKEY_R(27) = subR[26] ^ subR[28];
- CAMELLIA_SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */
- CAMELLIA_SUBKEY_R(28) = subR[27] ^ subR[29];
- CAMELLIA_SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */
- CAMELLIA_SUBKEY_R(29) = subR[28] ^ subR[30];
- CAMELLIA_SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */
- CAMELLIA_SUBKEY_R(30) = subR[29] ^ subR[31];
- CAMELLIA_SUBKEY_L(31) = subL[30]; /* round 24 */
- CAMELLIA_SUBKEY_R(31) = subR[30];
- CAMELLIA_SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */
- CAMELLIA_SUBKEY_R(32) = subR[32] ^ subR[31];
-
- /* apply the inverse of the last half of P-function */
- dw = CAMELLIA_SUBKEY_L(2) ^ CAMELLIA_SUBKEY_R(2),
- dw = CAMELLIA_RL8(dw);/* round 1 */
- CAMELLIA_SUBKEY_R(2) = CAMELLIA_SUBKEY_L(2) ^ dw,
- CAMELLIA_SUBKEY_L(2) = dw;
- dw = CAMELLIA_SUBKEY_L(3) ^ CAMELLIA_SUBKEY_R(3),
- dw = CAMELLIA_RL8(dw);/* round 2 */
- CAMELLIA_SUBKEY_R(3) = CAMELLIA_SUBKEY_L(3) ^ dw,
- CAMELLIA_SUBKEY_L(3) = dw;
- dw = CAMELLIA_SUBKEY_L(4) ^ CAMELLIA_SUBKEY_R(4),
- dw = CAMELLIA_RL8(dw);/* round 3 */
- CAMELLIA_SUBKEY_R(4) = CAMELLIA_SUBKEY_L(4) ^ dw,
- CAMELLIA_SUBKEY_L(4) = dw;
- dw = CAMELLIA_SUBKEY_L(5) ^ CAMELLIA_SUBKEY_R(5),
- dw = CAMELLIA_RL8(dw);/* round 4 */
- CAMELLIA_SUBKEY_R(5) = CAMELLIA_SUBKEY_L(5) ^ dw,
- CAMELLIA_SUBKEY_L(5) = dw;
- dw = CAMELLIA_SUBKEY_L(6) ^ CAMELLIA_SUBKEY_R(6),
- dw = CAMELLIA_RL8(dw);/* round 5 */
- CAMELLIA_SUBKEY_R(6) = CAMELLIA_SUBKEY_L(6) ^ dw,
- CAMELLIA_SUBKEY_L(6) = dw;
- dw = CAMELLIA_SUBKEY_L(7) ^ CAMELLIA_SUBKEY_R(7),
- dw = CAMELLIA_RL8(dw);/* round 6 */
- CAMELLIA_SUBKEY_R(7) = CAMELLIA_SUBKEY_L(7) ^ dw,
- CAMELLIA_SUBKEY_L(7) = dw;
- dw = CAMELLIA_SUBKEY_L(10) ^ CAMELLIA_SUBKEY_R(10),
- dw = CAMELLIA_RL8(dw);/* round 7 */
- CAMELLIA_SUBKEY_R(10) = CAMELLIA_SUBKEY_L(10) ^ dw,
- CAMELLIA_SUBKEY_L(10) = dw;
- dw = CAMELLIA_SUBKEY_L(11) ^ CAMELLIA_SUBKEY_R(11),
- dw = CAMELLIA_RL8(dw);/* round 8 */
- CAMELLIA_SUBKEY_R(11) = CAMELLIA_SUBKEY_L(11) ^ dw,
- CAMELLIA_SUBKEY_L(11) = dw;
- dw = CAMELLIA_SUBKEY_L(12) ^ CAMELLIA_SUBKEY_R(12),
- dw = CAMELLIA_RL8(dw);/* round 9 */
- CAMELLIA_SUBKEY_R(12) = CAMELLIA_SUBKEY_L(12) ^ dw,
- CAMELLIA_SUBKEY_L(12) = dw;
- dw = CAMELLIA_SUBKEY_L(13) ^ CAMELLIA_SUBKEY_R(13),
- dw = CAMELLIA_RL8(dw);/* round 10 */
- CAMELLIA_SUBKEY_R(13) = CAMELLIA_SUBKEY_L(13) ^ dw,
- CAMELLIA_SUBKEY_L(13) = dw;
- dw = CAMELLIA_SUBKEY_L(14) ^ CAMELLIA_SUBKEY_R(14),
- dw = CAMELLIA_RL8(dw);/* round 11 */
- CAMELLIA_SUBKEY_R(14) = CAMELLIA_SUBKEY_L(14) ^ dw,
- CAMELLIA_SUBKEY_L(14) = dw;
- dw = CAMELLIA_SUBKEY_L(15) ^ CAMELLIA_SUBKEY_R(15),
- dw = CAMELLIA_RL8(dw);/* round 12 */
- CAMELLIA_SUBKEY_R(15) = CAMELLIA_SUBKEY_L(15) ^ dw,
- CAMELLIA_SUBKEY_L(15) = dw;
- dw = CAMELLIA_SUBKEY_L(18) ^ CAMELLIA_SUBKEY_R(18),
- dw = CAMELLIA_RL8(dw);/* round 13 */
- CAMELLIA_SUBKEY_R(18) = CAMELLIA_SUBKEY_L(18) ^ dw,
- CAMELLIA_SUBKEY_L(18) = dw;
- dw = CAMELLIA_SUBKEY_L(19) ^ CAMELLIA_SUBKEY_R(19),
- dw = CAMELLIA_RL8(dw);/* round 14 */
- CAMELLIA_SUBKEY_R(19) = CAMELLIA_SUBKEY_L(19) ^ dw,
- CAMELLIA_SUBKEY_L(19) = dw;
- dw = CAMELLIA_SUBKEY_L(20) ^ CAMELLIA_SUBKEY_R(20),
- dw = CAMELLIA_RL8(dw);/* round 15 */
- CAMELLIA_SUBKEY_R(20) = CAMELLIA_SUBKEY_L(20) ^ dw,
- CAMELLIA_SUBKEY_L(20) = dw;
- dw = CAMELLIA_SUBKEY_L(21) ^ CAMELLIA_SUBKEY_R(21),
- dw = CAMELLIA_RL8(dw);/* round 16 */
- CAMELLIA_SUBKEY_R(21) = CAMELLIA_SUBKEY_L(21) ^ dw,
- CAMELLIA_SUBKEY_L(21) = dw;
- dw = CAMELLIA_SUBKEY_L(22) ^ CAMELLIA_SUBKEY_R(22),
- dw = CAMELLIA_RL8(dw);/* round 17 */
- CAMELLIA_SUBKEY_R(22) = CAMELLIA_SUBKEY_L(22) ^ dw,
- CAMELLIA_SUBKEY_L(22) = dw;
- dw = CAMELLIA_SUBKEY_L(23) ^ CAMELLIA_SUBKEY_R(23),
- dw = CAMELLIA_RL8(dw);/* round 18 */
- CAMELLIA_SUBKEY_R(23) = CAMELLIA_SUBKEY_L(23) ^ dw,
- CAMELLIA_SUBKEY_L(23) = dw;
- dw = CAMELLIA_SUBKEY_L(26) ^ CAMELLIA_SUBKEY_R(26),
- dw = CAMELLIA_RL8(dw);/* round 19 */
- CAMELLIA_SUBKEY_R(26) = CAMELLIA_SUBKEY_L(26) ^ dw,
- CAMELLIA_SUBKEY_L(26) = dw;
- dw = CAMELLIA_SUBKEY_L(27) ^ CAMELLIA_SUBKEY_R(27),
- dw = CAMELLIA_RL8(dw);/* round 20 */
- CAMELLIA_SUBKEY_R(27) = CAMELLIA_SUBKEY_L(27) ^ dw,
- CAMELLIA_SUBKEY_L(27) = dw;
- dw = CAMELLIA_SUBKEY_L(28) ^ CAMELLIA_SUBKEY_R(28),
- dw = CAMELLIA_RL8(dw);/* round 21 */
- CAMELLIA_SUBKEY_R(28) = CAMELLIA_SUBKEY_L(28) ^ dw,
- CAMELLIA_SUBKEY_L(28) = dw;
- dw = CAMELLIA_SUBKEY_L(29) ^ CAMELLIA_SUBKEY_R(29),
- dw = CAMELLIA_RL8(dw);/* round 22 */
- CAMELLIA_SUBKEY_R(29) = CAMELLIA_SUBKEY_L(29) ^ dw,
- CAMELLIA_SUBKEY_L(29) = dw;
- dw = CAMELLIA_SUBKEY_L(30) ^ CAMELLIA_SUBKEY_R(30),
- dw = CAMELLIA_RL8(dw);/* round 23 */
- CAMELLIA_SUBKEY_R(30) = CAMELLIA_SUBKEY_L(30) ^ dw,
- CAMELLIA_SUBKEY_L(30) = dw;
- dw = CAMELLIA_SUBKEY_L(31) ^ CAMELLIA_SUBKEY_R(31),
- dw = CAMELLIA_RL8(dw);/* round 24 */
- CAMELLIA_SUBKEY_R(31) = CAMELLIA_SUBKEY_L(31) ^ dw,
- CAMELLIA_SUBKEY_L(31) = dw;
+ camellia_setup_tail(subkey, subL, subR, 32);
}
static void camellia_setup192(const unsigned char *key, u32 *subkey)
}
-static void camellia_encrypt128(const u32 *subkey, __be32 *io_text)
-{
- u32 il,ir,t0,t1; /* temporary valiables */
-
- u32 io[4];
-
- io[0] = be32_to_cpu(io_text[0]);
- io[1] = be32_to_cpu(io_text[1]);
- io[2] = be32_to_cpu(io_text[2]);
- io[3] = be32_to_cpu(io_text[3]);
-
- /* pre whitening but absorb kw2 */
- io[0] ^= CAMELLIA_SUBKEY_L(0);
- io[1] ^= CAMELLIA_SUBKEY_R(0);
-
- /* main iteration */
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(2),CAMELLIA_SUBKEY_R(2),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(3),CAMELLIA_SUBKEY_R(3),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(4),CAMELLIA_SUBKEY_R(4),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(5),CAMELLIA_SUBKEY_R(5),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(6),CAMELLIA_SUBKEY_R(6),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(7),CAMELLIA_SUBKEY_R(7),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(8),CAMELLIA_SUBKEY_R(8),
- CAMELLIA_SUBKEY_L(9),CAMELLIA_SUBKEY_R(9),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(10),CAMELLIA_SUBKEY_R(10),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(11),CAMELLIA_SUBKEY_R(11),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(12),CAMELLIA_SUBKEY_R(12),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(13),CAMELLIA_SUBKEY_R(13),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(14),CAMELLIA_SUBKEY_R(14),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(15),CAMELLIA_SUBKEY_R(15),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(16),CAMELLIA_SUBKEY_R(16),
- CAMELLIA_SUBKEY_L(17),CAMELLIA_SUBKEY_R(17),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(18),CAMELLIA_SUBKEY_R(18),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(19),CAMELLIA_SUBKEY_R(19),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(20),CAMELLIA_SUBKEY_R(20),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(21),CAMELLIA_SUBKEY_R(21),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(22),CAMELLIA_SUBKEY_R(22),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(23),CAMELLIA_SUBKEY_R(23),
- io[0],io[1],il,ir,t0,t1);
-
- /* post whitening but kw4 */
- io[2] ^= CAMELLIA_SUBKEY_L(24);
- io[3] ^= CAMELLIA_SUBKEY_R(24);
+/*
+ * Encrypt/decrypt
+ */
+#define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) \
+ do { \
+ t0 = kll; \
+ t2 = krr; \
+ t0 &= ll; \
+ t2 |= rr; \
+ rl ^= t2; \
+ lr ^= ROL1(t0); \
+ t3 = krl; \
+ t1 = klr; \
+ t3 &= rl; \
+ t1 |= lr; \
+ ll ^= t1; \
+ rr ^= ROL1(t3); \
+ } while(0)
- io_text[0] = cpu_to_be32(io[2]);
- io_text[1] = cpu_to_be32(io[3]);
- io_text[2] = cpu_to_be32(io[0]);
- io_text[3] = cpu_to_be32(io[1]);
-}
+#define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) \
+ do { \
+ ir = camellia_sp1110[(u8)xr]; \
+ il = camellia_sp1110[ (xl >> 24)]; \
+ ir ^= camellia_sp0222[ (xr >> 24)]; \
+ il ^= camellia_sp0222[(u8)(xl >> 16)]; \
+ ir ^= camellia_sp3033[(u8)(xr >> 16)]; \
+ il ^= camellia_sp3033[(u8)(xl >> 8)]; \
+ ir ^= camellia_sp4404[(u8)(xr >> 8)]; \
+ il ^= camellia_sp4404[(u8)xl]; \
+ il ^= kl; \
+ ir ^= il ^ kr; \
+ yl ^= ir; \
+ yr ^= ROR8(il) ^ ir; \
+ } while(0)
-static void camellia_decrypt128(const u32 *subkey, __be32 *io_text)
+/* max = 24: 128bit encrypt, max = 32: 256bit encrypt */
+static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max)
{
- u32 il,ir,t0,t1; /* temporary valiables */
-
- u32 io[4];
-
- io[0] = be32_to_cpu(io_text[0]);
- io[1] = be32_to_cpu(io_text[1]);
- io[2] = be32_to_cpu(io_text[2]);
- io[3] = be32_to_cpu(io_text[3]);
+ u32 il,ir,t0,t1; /* temporary variables */
/* pre whitening but absorb kw2 */
- io[0] ^= CAMELLIA_SUBKEY_L(24);
- io[1] ^= CAMELLIA_SUBKEY_R(24);
+ io[0] ^= SUBKEY_L(0);
+ io[1] ^= SUBKEY_R(0);
/* main iteration */
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(23),CAMELLIA_SUBKEY_R(23),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(22),CAMELLIA_SUBKEY_R(22),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(21),CAMELLIA_SUBKEY_R(21),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(20),CAMELLIA_SUBKEY_R(20),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(19),CAMELLIA_SUBKEY_R(19),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(18),CAMELLIA_SUBKEY_R(18),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(17),CAMELLIA_SUBKEY_R(17),
- CAMELLIA_SUBKEY_L(16),CAMELLIA_SUBKEY_R(16),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(15),CAMELLIA_SUBKEY_R(15),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(14),CAMELLIA_SUBKEY_R(14),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(13),CAMELLIA_SUBKEY_R(13),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(12),CAMELLIA_SUBKEY_R(12),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(11),CAMELLIA_SUBKEY_R(11),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(10),CAMELLIA_SUBKEY_R(10),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(9),CAMELLIA_SUBKEY_R(9),
- CAMELLIA_SUBKEY_L(8),CAMELLIA_SUBKEY_R(8),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(7),CAMELLIA_SUBKEY_R(7),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(6),CAMELLIA_SUBKEY_R(6),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(5),CAMELLIA_SUBKEY_R(5),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(4),CAMELLIA_SUBKEY_R(4),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(3),CAMELLIA_SUBKEY_R(3),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(2),CAMELLIA_SUBKEY_R(2),
- io[0],io[1],il,ir,t0,t1);
-
- /* post whitening but kw4 */
- io[2] ^= CAMELLIA_SUBKEY_L(0);
- io[3] ^= CAMELLIA_SUBKEY_R(0);
-
- io_text[0] = cpu_to_be32(io[2]);
- io_text[1] = cpu_to_be32(io[3]);
- io_text[2] = cpu_to_be32(io[0]);
- io_text[3] = cpu_to_be32(io[1]);
-}
-
-static void camellia_encrypt256(const u32 *subkey, __be32 *io_text)
-{
- u32 il,ir,t0,t1; /* temporary valiables */
-
- u32 io[4];
-
- io[0] = be32_to_cpu(io_text[0]);
- io[1] = be32_to_cpu(io_text[1]);
- io[2] = be32_to_cpu(io_text[2]);
- io[3] = be32_to_cpu(io_text[3]);
-
- /* pre whitening but absorb kw2 */
- io[0] ^= CAMELLIA_SUBKEY_L(0);
- io[1] ^= CAMELLIA_SUBKEY_R(0);
+#define ROUNDS(i) do { \
+ CAMELLIA_ROUNDSM(io[0],io[1], \
+ SUBKEY_L(i + 2),SUBKEY_R(i + 2), \
+ io[2],io[3],il,ir); \
+ CAMELLIA_ROUNDSM(io[2],io[3], \
+ SUBKEY_L(i + 3),SUBKEY_R(i + 3), \
+ io[0],io[1],il,ir); \
+ CAMELLIA_ROUNDSM(io[0],io[1], \
+ SUBKEY_L(i + 4),SUBKEY_R(i + 4), \
+ io[2],io[3],il,ir); \
+ CAMELLIA_ROUNDSM(io[2],io[3], \
+ SUBKEY_L(i + 5),SUBKEY_R(i + 5), \
+ io[0],io[1],il,ir); \
+ CAMELLIA_ROUNDSM(io[0],io[1], \
+ SUBKEY_L(i + 6),SUBKEY_R(i + 6), \
+ io[2],io[3],il,ir); \
+ CAMELLIA_ROUNDSM(io[2],io[3], \
+ SUBKEY_L(i + 7),SUBKEY_R(i + 7), \
+ io[0],io[1],il,ir); \
+} while (0)
+#define FLS(i) do { \
+ CAMELLIA_FLS(io[0],io[1],io[2],io[3], \
+ SUBKEY_L(i + 0),SUBKEY_R(i + 0), \
+ SUBKEY_L(i + 1),SUBKEY_R(i + 1), \
+ t0,t1,il,ir); \
+} while (0)
+
+ ROUNDS(0);
+ FLS(8);
+ ROUNDS(8);
+ FLS(16);
+ ROUNDS(16);
+ if (max == 32) {
+ FLS(24);
+ ROUNDS(24);
+ }
- /* main iteration */
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(2),CAMELLIA_SUBKEY_R(2),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(3),CAMELLIA_SUBKEY_R(3),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(4),CAMELLIA_SUBKEY_R(4),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(5),CAMELLIA_SUBKEY_R(5),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(6),CAMELLIA_SUBKEY_R(6),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(7),CAMELLIA_SUBKEY_R(7),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(8),CAMELLIA_SUBKEY_R(8),
- CAMELLIA_SUBKEY_L(9),CAMELLIA_SUBKEY_R(9),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(10),CAMELLIA_SUBKEY_R(10),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(11),CAMELLIA_SUBKEY_R(11),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(12),CAMELLIA_SUBKEY_R(12),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(13),CAMELLIA_SUBKEY_R(13),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(14),CAMELLIA_SUBKEY_R(14),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(15),CAMELLIA_SUBKEY_R(15),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(16),CAMELLIA_SUBKEY_R(16),
- CAMELLIA_SUBKEY_L(17),CAMELLIA_SUBKEY_R(17),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(18),CAMELLIA_SUBKEY_R(18),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(19),CAMELLIA_SUBKEY_R(19),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(20),CAMELLIA_SUBKEY_R(20),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(21),CAMELLIA_SUBKEY_R(21),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(22),CAMELLIA_SUBKEY_R(22),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(23),CAMELLIA_SUBKEY_R(23),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(24),CAMELLIA_SUBKEY_R(24),
- CAMELLIA_SUBKEY_L(25),CAMELLIA_SUBKEY_R(25),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(26),CAMELLIA_SUBKEY_R(26),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(27),CAMELLIA_SUBKEY_R(27),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(28),CAMELLIA_SUBKEY_R(28),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(29),CAMELLIA_SUBKEY_R(29),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(30),CAMELLIA_SUBKEY_R(30),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(31),CAMELLIA_SUBKEY_R(31),
- io[0],io[1],il,ir,t0,t1);
+#undef ROUNDS
+#undef FLS
/* post whitening but kw4 */
- io[2] ^= CAMELLIA_SUBKEY_L(32);
- io[3] ^= CAMELLIA_SUBKEY_R(32);
-
- io_text[0] = cpu_to_be32(io[2]);
- io_text[1] = cpu_to_be32(io[3]);
- io_text[2] = cpu_to_be32(io[0]);
- io_text[3] = cpu_to_be32(io[1]);
+ io[2] ^= SUBKEY_L(max);
+ io[3] ^= SUBKEY_R(max);
+ /* NB: io[0],[1] should be swapped with [2],[3] by caller! */
}
-static void camellia_decrypt256(const u32 *subkey, __be32 *io_text)
+static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i)
{
- u32 il,ir,t0,t1; /* temporary valiables */
-
- u32 io[4];
-
- io[0] = be32_to_cpu(io_text[0]);
- io[1] = be32_to_cpu(io_text[1]);
- io[2] = be32_to_cpu(io_text[2]);
- io[3] = be32_to_cpu(io_text[3]);
+ u32 il,ir,t0,t1; /* temporary variables */
/* pre whitening but absorb kw2 */
- io[0] ^= CAMELLIA_SUBKEY_L(32);
- io[1] ^= CAMELLIA_SUBKEY_R(32);
+ io[0] ^= SUBKEY_L(i);
+ io[1] ^= SUBKEY_R(i);
/* main iteration */
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(31),CAMELLIA_SUBKEY_R(31),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(30),CAMELLIA_SUBKEY_R(30),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(29),CAMELLIA_SUBKEY_R(29),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(28),CAMELLIA_SUBKEY_R(28),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(27),CAMELLIA_SUBKEY_R(27),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(26),CAMELLIA_SUBKEY_R(26),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(25),CAMELLIA_SUBKEY_R(25),
- CAMELLIA_SUBKEY_L(24),CAMELLIA_SUBKEY_R(24),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(23),CAMELLIA_SUBKEY_R(23),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(22),CAMELLIA_SUBKEY_R(22),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(21),CAMELLIA_SUBKEY_R(21),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(20),CAMELLIA_SUBKEY_R(20),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(19),CAMELLIA_SUBKEY_R(19),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(18),CAMELLIA_SUBKEY_R(18),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(17),CAMELLIA_SUBKEY_R(17),
- CAMELLIA_SUBKEY_L(16),CAMELLIA_SUBKEY_R(16),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(15),CAMELLIA_SUBKEY_R(15),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(14),CAMELLIA_SUBKEY_R(14),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(13),CAMELLIA_SUBKEY_R(13),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(12),CAMELLIA_SUBKEY_R(12),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(11),CAMELLIA_SUBKEY_R(11),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(10),CAMELLIA_SUBKEY_R(10),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- CAMELLIA_SUBKEY_L(9),CAMELLIA_SUBKEY_R(9),
- CAMELLIA_SUBKEY_L(8),CAMELLIA_SUBKEY_R(8),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(7),CAMELLIA_SUBKEY_R(7),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(6),CAMELLIA_SUBKEY_R(6),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(5),CAMELLIA_SUBKEY_R(5),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(4),CAMELLIA_SUBKEY_R(4),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- CAMELLIA_SUBKEY_L(3),CAMELLIA_SUBKEY_R(3),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- CAMELLIA_SUBKEY_L(2),CAMELLIA_SUBKEY_R(2),
- io[0],io[1],il,ir,t0,t1);
+#define ROUNDS(i) do { \
+ CAMELLIA_ROUNDSM(io[0],io[1], \
+ SUBKEY_L(i + 7),SUBKEY_R(i + 7), \
+ io[2],io[3],il,ir); \
+ CAMELLIA_ROUNDSM(io[2],io[3], \
+ SUBKEY_L(i + 6),SUBKEY_R(i + 6), \
+ io[0],io[1],il,ir); \
+ CAMELLIA_ROUNDSM(io[0],io[1], \
+ SUBKEY_L(i + 5),SUBKEY_R(i + 5), \
+ io[2],io[3],il,ir); \
+ CAMELLIA_ROUNDSM(io[2],io[3], \
+ SUBKEY_L(i + 4),SUBKEY_R(i + 4), \
+ io[0],io[1],il,ir); \
+ CAMELLIA_ROUNDSM(io[0],io[1], \
+ SUBKEY_L(i + 3),SUBKEY_R(i + 3), \
+ io[2],io[3],il,ir); \
+ CAMELLIA_ROUNDSM(io[2],io[3], \
+ SUBKEY_L(i + 2),SUBKEY_R(i + 2), \
+ io[0],io[1],il,ir); \
+} while (0)
+#define FLS(i) do { \
+ CAMELLIA_FLS(io[0],io[1],io[2],io[3], \
+ SUBKEY_L(i + 1),SUBKEY_R(i + 1), \
+ SUBKEY_L(i + 0),SUBKEY_R(i + 0), \
+ t0,t1,il,ir); \
+} while (0)
+
+ if (i == 32) {
+ ROUNDS(24);
+ FLS(24);
+ }
+ ROUNDS(16);
+ FLS(16);
+ ROUNDS(8);
+ FLS(8);
+ ROUNDS(0);
- /* post whitening but kw4 */
- io[2] ^= CAMELLIA_SUBKEY_L(0);
- io[3] ^= CAMELLIA_SUBKEY_R(0);
+#undef ROUNDS
+#undef FLS
- io_text[0] = cpu_to_be32(io[2]);
- io_text[1] = cpu_to_be32(io[3]);
- io_text[2] = cpu_to_be32(io[0]);
- io_text[3] = cpu_to_be32(io[1]);
+ /* post whitening but kw4 */
+ io[2] ^= SUBKEY_L(0);
+ io[3] ^= SUBKEY_R(0);
+ /* NB: 0,1 should be swapped with 2,3 by caller! */
}
struct camellia_ctx {
int key_length;
- u32 key_table[CAMELLIA_TABLE_BYTE_LEN / 4];
+ u32 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u32)];
};
static int
const __be32 *src = (const __be32 *)in;
__be32 *dst = (__be32 *)out;
- __be32 tmp[4];
+ u32 tmp[4];
- memcpy(tmp, src, CAMELLIA_BLOCK_SIZE);
+ tmp[0] = be32_to_cpu(src[0]);
+ tmp[1] = be32_to_cpu(src[1]);
+ tmp[2] = be32_to_cpu(src[2]);
+ tmp[3] = be32_to_cpu(src[3]);
- switch (cctx->key_length) {
- case 16:
- camellia_encrypt128(cctx->key_table, tmp);
- break;
- case 24:
- /* fall through */
- case 32:
- camellia_encrypt256(cctx->key_table, tmp);
- break;
- }
+ camellia_do_encrypt(cctx->key_table, tmp,
+ cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */
+ );
- memcpy(dst, tmp, CAMELLIA_BLOCK_SIZE);
+ /* do_encrypt returns 0,1 swapped with 2,3 */
+ dst[0] = cpu_to_be32(tmp[2]);
+ dst[1] = cpu_to_be32(tmp[3]);
+ dst[2] = cpu_to_be32(tmp[0]);
+ dst[3] = cpu_to_be32(tmp[1]);
}
static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
const __be32 *src = (const __be32 *)in;
__be32 *dst = (__be32 *)out;
- __be32 tmp[4];
+ u32 tmp[4];
- memcpy(tmp, src, CAMELLIA_BLOCK_SIZE);
+ tmp[0] = be32_to_cpu(src[0]);
+ tmp[1] = be32_to_cpu(src[1]);
+ tmp[2] = be32_to_cpu(src[2]);
+ tmp[3] = be32_to_cpu(src[3]);
- switch (cctx->key_length) {
- case 16:
- camellia_decrypt128(cctx->key_table, tmp);
- break;
- case 24:
- /* fall through */
- case 32:
- camellia_decrypt256(cctx->key_table, tmp);
- break;
- }
+ camellia_do_decrypt(cctx->key_table, tmp,
+ cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */
+ );
- memcpy(dst, tmp, CAMELLIA_BLOCK_SIZE);
+ /* do_decrypt returns 0,1 swapped with 2,3 */
+ dst[0] = cpu_to_be32(tmp[2]);
+ dst[1] = cpu_to_be32(tmp[3]);
+ dst[2] = cpu_to_be32(tmp[0]);
+ dst[3] = cpu_to_be32(tmp[1]);
}
static struct crypto_alg camellia_alg = {
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff