On Tuesday 13 November 2007 22:30, Denys Vlasenko wrote:
> I will resubmit the patch without de-unrolling.
> Meanwhile, I'd like to ask you guys to think about ways
> to make size/speed tradeoffs selectable at build time.
Here is the patch which has loops still unrolled,
but otherwise unchanged.
Description:
Use alternative key setup implementation with mostly 64-bit ops
if BITS_PER_LONG >= 64. Both much smaller and much faster.
Unify camellia_en/decrypt128/256 into camellia_do_en/decrypt.
Code was similar, with just one additional if() we can use came code.
Replace (x & 0xff) with (u8)x, gcc is not smart enough to realize
that it can do (x & 0xff) this way (which is smaller at least on i386).
Don't do (x & 0xff) in a few places where x cannot be > 255 anyway:
t0 = il >> 16; v = camellia_sp0222[(t1 >> 8) & 0xff];
il16 is u32, (thus t1 >> 8) is one byte!
Signed-off-by: Denys Vlasenko <[EMAIL PROTECTED]>
--
vda
diff -urpN linux-2.6.23.1.camellia/crypto/camellia.c linux-2.6.23.1.camellia5/crypto/camellia.c
--- linux-2.6.23.1.camellia/crypto/camellia.c 2007-11-13 22:47:28.000000000 -0700
+++ linux-2.6.23.1.camellia5/crypto/camellia.c 2007-11-13 22:57:54.000000000 -0700
@@ -36,6 +36,13 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#if BITS_PER_LONG >= 64
+
+/* Use alternative implementation with mostly 64-bit ops */
+#include "camellia_64.c"
+
+#else
+
static const u32 camellia_sp1110[256] = {
0x70707000,0x82828200,0x2c2c2c00,0xececec00,
0xb3b3b300,0x27272700,0xc0c0c000,0xe5e5e500,
@@ -329,7 +336,6 @@ static const u32 camellia_sp4404[256] =
/*
* macros
*/
-
# define GETU32(v, pt) \
do { \
/* latest breed of gcc is clever enough to use move */ \
@@ -364,63 +370,28 @@ static const u32 camellia_sp4404[256] =
} while(0)
+/*
+ * Key setup
+ */
#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 = ROR8(yr); \
yr ^= yl; \
} while(0)
-
-/*
- * 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 ^= ROL1(t0); \
- t3 = krl; \
- t1 = klr; \
- t3 &= rl; \
- t1 |= lr; \
- ll ^= t1; \
- rr ^= ROL1(t3); \
- } while(0)
-
-#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 ^= ROR8(il) ^ ir; \
- } while(0)
-
-
#define SUBKEY_L(INDEX) (subkey[(INDEX)*2])
#define SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1])
@@ -622,7 +593,7 @@ static void camellia_setup128(const unsi
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) */
+ 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;
@@ -1000,400 +971,150 @@ static void camellia_setup192(const unsi
}
-static void camellia_encrypt128(const u32 *subkey, u32 *io_text)
-{
- u32 il,ir,t0,t1; /* temporary variables */
-
- u32 io[4];
-
- /* pre whitening but absorb kw2 */
- io[0] = io_text[0] ^ SUBKEY_L(0);
- io[1] = io_text[1] ^ SUBKEY_R(0);
- io[2] = io_text[2];
- io[3] = io_text[3];
-
- /* main iteration */
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(2),SUBKEY_R(2),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(3),SUBKEY_R(3),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(4),SUBKEY_R(4),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(5),SUBKEY_R(5),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(6),SUBKEY_R(6),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(7),SUBKEY_R(7),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(8),SUBKEY_R(8),
- SUBKEY_L(9),SUBKEY_R(9),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(10),SUBKEY_R(10),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(11),SUBKEY_R(11),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(12),SUBKEY_R(12),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(13),SUBKEY_R(13),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(14),SUBKEY_R(14),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(15),SUBKEY_R(15),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(16),SUBKEY_R(16),
- SUBKEY_L(17),SUBKEY_R(17),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(18),SUBKEY_R(18),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(19),SUBKEY_R(19),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(20),SUBKEY_R(20),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(21),SUBKEY_R(21),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(22),SUBKEY_R(22),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(23),SUBKEY_R(23),
- io[0],io[1],il,ir,t0,t1);
+/*
+ * 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)
- /* post whitening but kw4 */
- io_text[0] = io[2] ^ SUBKEY_L(24);
- io_text[1] = io[3] ^ SUBKEY_R(24);
- io_text[2] = io[0];
- io_text[3] = 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, u32 *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 variables */
- u32 io[4];
-
/* pre whitening but absorb kw2 */
- io[0] = io_text[0] ^ SUBKEY_L(24);
- io[1] = io_text[1] ^ SUBKEY_R(24);
- io[2] = io_text[2];
- io[3] = io_text[3];
+ io[0] ^= SUBKEY_L(0);
+ io[1] ^= SUBKEY_R(0);
/* main iteration */
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(23),SUBKEY_R(23),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(22),SUBKEY_R(22),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(21),SUBKEY_R(21),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(20),SUBKEY_R(20),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(19),SUBKEY_R(19),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(18),SUBKEY_R(18),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(17),SUBKEY_R(17),
- SUBKEY_L(16),SUBKEY_R(16),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(15),SUBKEY_R(15),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(14),SUBKEY_R(14),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(13),SUBKEY_R(13),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(12),SUBKEY_R(12),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(11),SUBKEY_R(11),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(10),SUBKEY_R(10),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(9),SUBKEY_R(9),
- SUBKEY_L(8),SUBKEY_R(8),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(7),SUBKEY_R(7),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(6),SUBKEY_R(6),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(5),SUBKEY_R(5),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(4),SUBKEY_R(4),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(3),SUBKEY_R(3),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(2),SUBKEY_R(2),
- io[0],io[1],il,ir,t0,t1);
-
- /* post whitening but kw4 */
- io_text[0] = io[2] ^ SUBKEY_L(0);
- io_text[1] = io[3] ^ SUBKEY_R(0);
- io_text[2] = io[0];
- io_text[3] = io[1];
-}
-
-static void camellia_encrypt256(const u32 *subkey, u32 *io_text)
-{
- u32 il,ir,t0,t1; /* temporary variables */
-
- u32 io[4];
-
- /* pre whitening but absorb kw2 */
- io[0] = io_text[0] ^ SUBKEY_L(0);
- io[1] = io_text[1] ^ SUBKEY_R(0);
- io[2] = io_text[2];
- io[3] = io_text[3];
+#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],
- SUBKEY_L(2),SUBKEY_R(2),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(3),SUBKEY_R(3),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(4),SUBKEY_R(4),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(5),SUBKEY_R(5),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(6),SUBKEY_R(6),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(7),SUBKEY_R(7),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(8),SUBKEY_R(8),
- SUBKEY_L(9),SUBKEY_R(9),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(10),SUBKEY_R(10),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(11),SUBKEY_R(11),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(12),SUBKEY_R(12),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(13),SUBKEY_R(13),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(14),SUBKEY_R(14),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(15),SUBKEY_R(15),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(16),SUBKEY_R(16),
- SUBKEY_L(17),SUBKEY_R(17),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(18),SUBKEY_R(18),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(19),SUBKEY_R(19),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(20),SUBKEY_R(20),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(21),SUBKEY_R(21),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(22),SUBKEY_R(22),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(23),SUBKEY_R(23),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(24),SUBKEY_R(24),
- SUBKEY_L(25),SUBKEY_R(25),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(26),SUBKEY_R(26),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(27),SUBKEY_R(27),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(28),SUBKEY_R(28),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(29),SUBKEY_R(29),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(30),SUBKEY_R(30),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(31),SUBKEY_R(31),
- io[0],io[1],il,ir,t0,t1);
+#undef ROUNDS
+#undef FLS
/* post whitening but kw4 */
- io_text[0] = io[2] ^ SUBKEY_L(32);
- io_text[1] = io[3] ^ SUBKEY_R(32);
- io_text[2] = io[0];
- io_text[3] = 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, u32 *io_text)
+static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i)
{
- u32 il,ir,t0,t1; /* temporary variables */
-
- u32 io[4];
+ u32 il,ir,t0,t1; /* temporary variables */
/* pre whitening but absorb kw2 */
- io[0] = io_text[0] ^ SUBKEY_L(32);
- io[1] = io_text[1] ^ SUBKEY_R(32);
- io[2] = io_text[2];
- io[3] = io_text[3];
+ io[0] ^= SUBKEY_L(i);
+ io[1] ^= SUBKEY_R(i);
/* main iteration */
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(31),SUBKEY_R(31),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(30),SUBKEY_R(30),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(29),SUBKEY_R(29),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(28),SUBKEY_R(28),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(27),SUBKEY_R(27),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(26),SUBKEY_R(26),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(25),SUBKEY_R(25),
- SUBKEY_L(24),SUBKEY_R(24),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(23),SUBKEY_R(23),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(22),SUBKEY_R(22),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(21),SUBKEY_R(21),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(20),SUBKEY_R(20),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(19),SUBKEY_R(19),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(18),SUBKEY_R(18),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(17),SUBKEY_R(17),
- SUBKEY_L(16),SUBKEY_R(16),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(15),SUBKEY_R(15),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(14),SUBKEY_R(14),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(13),SUBKEY_R(13),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(12),SUBKEY_R(12),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(11),SUBKEY_R(11),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(10),SUBKEY_R(10),
- io[0],io[1],il,ir,t0,t1);
-
- CAMELLIA_FLS(io[0],io[1],io[2],io[3],
- SUBKEY_L(9),SUBKEY_R(9),
- SUBKEY_L(8),SUBKEY_R(8),
- t0,t1,il,ir);
-
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(7),SUBKEY_R(7),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(6),SUBKEY_R(6),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(5),SUBKEY_R(5),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(4),SUBKEY_R(4),
- io[0],io[1],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[0],io[1],
- SUBKEY_L(3),SUBKEY_R(3),
- io[2],io[3],il,ir,t0,t1);
- CAMELLIA_ROUNDSM(io[2],io[3],
- SUBKEY_L(2),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);
+
+#undef ROUNDS
+#undef FLS
/* post whitening but kw4 */
- io_text[0] = io[2] ^ SUBKEY_L(0);
- io_text[1] = io[3] ^ SUBKEY_R(0);
- io_text[2] = io[0];
- io_text[3] = io[1];
+ io[2] ^= SUBKEY_L(0);
+ io[3] ^= SUBKEY_R(0);
+ /* NB: 0,1 should be swapped with 2,3 by caller! */
}
@@ -1445,21 +1166,15 @@ static void camellia_encrypt(struct cryp
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;
- }
-
- dst[0] = cpu_to_be32(tmp[0]);
- dst[1] = cpu_to_be32(tmp[1]);
- dst[2] = cpu_to_be32(tmp[2]);
- dst[3] = cpu_to_be32(tmp[3]);
+ camellia_do_encrypt(cctx->key_table, tmp,
+ cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */
+ );
+
+ /* 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)
@@ -1475,21 +1190,15 @@ static void camellia_decrypt(struct cryp
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;
- }
-
- dst[0] = cpu_to_be32(tmp[0]);
- dst[1] = cpu_to_be32(tmp[1]);
- dst[2] = cpu_to_be32(tmp[2]);
- dst[3] = cpu_to_be32(tmp[3]);
+ camellia_do_decrypt(cctx->key_table, tmp,
+ cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */
+ );
+
+ /* 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 = {
@@ -1528,3 +1237,5 @@ module_exit(camellia_fini);
MODULE_DESCRIPTION("Camellia Cipher Algorithm");
MODULE_LICENSE("GPL");
+
+#endif /* if BITS_PER_LONG < 64 */
diff -urpN linux-2.6.23.1.camellia/crypto/camellia_64.c linux-2.6.23.1.camellia5/crypto/camellia_64.c
--- linux-2.6.23.1.camellia/crypto/camellia_64.c 1969-12-31 17:00:00.000000000 -0700
+++ linux-2.6.23.1.camellia5/crypto/camellia_64.c 2007-11-13 22:57:16.000000000 -0700
@@ -0,0 +1,1149 @@
+/*
+ * Copyright (C) 2006
+ * NTT (Nippon Telegraph and Telephone Corporation).
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Algorithm Specification
+ * http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
+ */
+
+/*
+ *
+ * NOTE --- NOTE --- NOTE --- NOTE
+ * This implementation assumes that all memory addresses passed
+ * as parameters are four-byte aligned.
+ *
+ */
+
+/* #included from camellia.c if long is 64bit */
+
+/*
+#include <linux/crypto.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+*/
+
+static const u32 camellia_sp1110[256] = {
+ 0x70707000,0x82828200,0x2c2c2c00,0xececec00,
+ 0xb3b3b300,0x27272700,0xc0c0c000,0xe5e5e500,
+ 0xe4e4e400,0x85858500,0x57575700,0x35353500,
+ 0xeaeaea00,0x0c0c0c00,0xaeaeae00,0x41414100,
+ 0x23232300,0xefefef00,0x6b6b6b00,0x93939300,
+ 0x45454500,0x19191900,0xa5a5a500,0x21212100,
+ 0xededed00,0x0e0e0e00,0x4f4f4f00,0x4e4e4e00,
+ 0x1d1d1d00,0x65656500,0x92929200,0xbdbdbd00,
+ 0x86868600,0xb8b8b800,0xafafaf00,0x8f8f8f00,
+ 0x7c7c7c00,0xebebeb00,0x1f1f1f00,0xcecece00,
+ 0x3e3e3e00,0x30303000,0xdcdcdc00,0x5f5f5f00,
+ 0x5e5e5e00,0xc5c5c500,0x0b0b0b00,0x1a1a1a00,
+ 0xa6a6a600,0xe1e1e100,0x39393900,0xcacaca00,
+ 0xd5d5d500,0x47474700,0x5d5d5d00,0x3d3d3d00,
+ 0xd9d9d900,0x01010100,0x5a5a5a00,0xd6d6d600,
+ 0x51515100,0x56565600,0x6c6c6c00,0x4d4d4d00,
+ 0x8b8b8b00,0x0d0d0d00,0x9a9a9a00,0x66666600,
+ 0xfbfbfb00,0xcccccc00,0xb0b0b000,0x2d2d2d00,
+ 0x74747400,0x12121200,0x2b2b2b00,0x20202000,
+ 0xf0f0f000,0xb1b1b100,0x84848400,0x99999900,
+ 0xdfdfdf00,0x4c4c4c00,0xcbcbcb00,0xc2c2c200,
+ 0x34343400,0x7e7e7e00,0x76767600,0x05050500,
+ 0x6d6d6d00,0xb7b7b700,0xa9a9a900,0x31313100,
+ 0xd1d1d100,0x17171700,0x04040400,0xd7d7d700,
+ 0x14141400,0x58585800,0x3a3a3a00,0x61616100,
+ 0xdedede00,0x1b1b1b00,0x11111100,0x1c1c1c00,
+ 0x32323200,0x0f0f0f00,0x9c9c9c00,0x16161600,
+ 0x53535300,0x18181800,0xf2f2f200,0x22222200,
+ 0xfefefe00,0x44444400,0xcfcfcf00,0xb2b2b200,
+ 0xc3c3c300,0xb5b5b500,0x7a7a7a00,0x91919100,
+ 0x24242400,0x08080800,0xe8e8e800,0xa8a8a800,
+ 0x60606000,0xfcfcfc00,0x69696900,0x50505000,
+ 0xaaaaaa00,0xd0d0d000,0xa0a0a000,0x7d7d7d00,
+ 0xa1a1a100,0x89898900,0x62626200,0x97979700,
+ 0x54545400,0x5b5b5b00,0x1e1e1e00,0x95959500,
+ 0xe0e0e000,0xffffff00,0x64646400,0xd2d2d200,
+ 0x10101000,0xc4c4c400,0x00000000,0x48484800,
+ 0xa3a3a300,0xf7f7f700,0x75757500,0xdbdbdb00,
+ 0x8a8a8a00,0x03030300,0xe6e6e600,0xdadada00,
+ 0x09090900,0x3f3f3f00,0xdddddd00,0x94949400,
+ 0x87878700,0x5c5c5c00,0x83838300,0x02020200,
+ 0xcdcdcd00,0x4a4a4a00,0x90909000,0x33333300,
+ 0x73737300,0x67676700,0xf6f6f600,0xf3f3f300,
+ 0x9d9d9d00,0x7f7f7f00,0xbfbfbf00,0xe2e2e200,
+ 0x52525200,0x9b9b9b00,0xd8d8d800,0x26262600,
+ 0xc8c8c800,0x37373700,0xc6c6c600,0x3b3b3b00,
+ 0x81818100,0x96969600,0x6f6f6f00,0x4b4b4b00,
+ 0x13131300,0xbebebe00,0x63636300,0x2e2e2e00,
+ 0xe9e9e900,0x79797900,0xa7a7a700,0x8c8c8c00,
+ 0x9f9f9f00,0x6e6e6e00,0xbcbcbc00,0x8e8e8e00,
+ 0x29292900,0xf5f5f500,0xf9f9f900,0xb6b6b600,
+ 0x2f2f2f00,0xfdfdfd00,0xb4b4b400,0x59595900,
+ 0x78787800,0x98989800,0x06060600,0x6a6a6a00,
+ 0xe7e7e700,0x46464600,0x71717100,0xbababa00,
+ 0xd4d4d400,0x25252500,0xababab00,0x42424200,
+ 0x88888800,0xa2a2a200,0x8d8d8d00,0xfafafa00,
+ 0x72727200,0x07070700,0xb9b9b900,0x55555500,
+ 0xf8f8f800,0xeeeeee00,0xacacac00,0x0a0a0a00,
+ 0x36363600,0x49494900,0x2a2a2a00,0x68686800,
+ 0x3c3c3c00,0x38383800,0xf1f1f100,0xa4a4a400,
+ 0x40404000,0x28282800,0xd3d3d300,0x7b7b7b00,
+ 0xbbbbbb00,0xc9c9c900,0x43434300,0xc1c1c100,
+ 0x15151500,0xe3e3e300,0xadadad00,0xf4f4f400,
+ 0x77777700,0xc7c7c700,0x80808000,0x9e9e9e00,
+};
+
+static const u32 camellia_sp0222[256] = {
+ 0x00e0e0e0,0x00050505,0x00585858,0x00d9d9d9,
+ 0x00676767,0x004e4e4e,0x00818181,0x00cbcbcb,
+ 0x00c9c9c9,0x000b0b0b,0x00aeaeae,0x006a6a6a,
+ 0x00d5d5d5,0x00181818,0x005d5d5d,0x00828282,
+ 0x00464646,0x00dfdfdf,0x00d6d6d6,0x00272727,
+ 0x008a8a8a,0x00323232,0x004b4b4b,0x00424242,
+ 0x00dbdbdb,0x001c1c1c,0x009e9e9e,0x009c9c9c,
+ 0x003a3a3a,0x00cacaca,0x00252525,0x007b7b7b,
+ 0x000d0d0d,0x00717171,0x005f5f5f,0x001f1f1f,
+ 0x00f8f8f8,0x00d7d7d7,0x003e3e3e,0x009d9d9d,
+ 0x007c7c7c,0x00606060,0x00b9b9b9,0x00bebebe,
+ 0x00bcbcbc,0x008b8b8b,0x00161616,0x00343434,
+ 0x004d4d4d,0x00c3c3c3,0x00727272,0x00959595,
+ 0x00ababab,0x008e8e8e,0x00bababa,0x007a7a7a,
+ 0x00b3b3b3,0x00020202,0x00b4b4b4,0x00adadad,
+ 0x00a2a2a2,0x00acacac,0x00d8d8d8,0x009a9a9a,
+ 0x00171717,0x001a1a1a,0x00353535,0x00cccccc,
+ 0x00f7f7f7,0x00999999,0x00616161,0x005a5a5a,
+ 0x00e8e8e8,0x00242424,0x00565656,0x00404040,
+ 0x00e1e1e1,0x00636363,0x00090909,0x00333333,
+ 0x00bfbfbf,0x00989898,0x00979797,0x00858585,
+ 0x00686868,0x00fcfcfc,0x00ececec,0x000a0a0a,
+ 0x00dadada,0x006f6f6f,0x00535353,0x00626262,
+ 0x00a3a3a3,0x002e2e2e,0x00080808,0x00afafaf,
+ 0x00282828,0x00b0b0b0,0x00747474,0x00c2c2c2,
+ 0x00bdbdbd,0x00363636,0x00222222,0x00383838,
+ 0x00646464,0x001e1e1e,0x00393939,0x002c2c2c,
+ 0x00a6a6a6,0x00303030,0x00e5e5e5,0x00444444,
+ 0x00fdfdfd,0x00888888,0x009f9f9f,0x00656565,
+ 0x00878787,0x006b6b6b,0x00f4f4f4,0x00232323,
+ 0x00484848,0x00101010,0x00d1d1d1,0x00515151,
+ 0x00c0c0c0,0x00f9f9f9,0x00d2d2d2,0x00a0a0a0,
+ 0x00555555,0x00a1a1a1,0x00414141,0x00fafafa,
+ 0x00434343,0x00131313,0x00c4c4c4,0x002f2f2f,
+ 0x00a8a8a8,0x00b6b6b6,0x003c3c3c,0x002b2b2b,
+ 0x00c1c1c1,0x00ffffff,0x00c8c8c8,0x00a5a5a5,
+ 0x00202020,0x00898989,0x00000000,0x00909090,
+ 0x00474747,0x00efefef,0x00eaeaea,0x00b7b7b7,
+ 0x00151515,0x00060606,0x00cdcdcd,0x00b5b5b5,
+ 0x00121212,0x007e7e7e,0x00bbbbbb,0x00292929,
+ 0x000f0f0f,0x00b8b8b8,0x00070707,0x00040404,
+ 0x009b9b9b,0x00949494,0x00212121,0x00666666,
+ 0x00e6e6e6,0x00cecece,0x00ededed,0x00e7e7e7,
+ 0x003b3b3b,0x00fefefe,0x007f7f7f,0x00c5c5c5,
+ 0x00a4a4a4,0x00373737,0x00b1b1b1,0x004c4c4c,
+ 0x00919191,0x006e6e6e,0x008d8d8d,0x00767676,
+ 0x00030303,0x002d2d2d,0x00dedede,0x00969696,
+ 0x00262626,0x007d7d7d,0x00c6c6c6,0x005c5c5c,
+ 0x00d3d3d3,0x00f2f2f2,0x004f4f4f,0x00191919,
+ 0x003f3f3f,0x00dcdcdc,0x00797979,0x001d1d1d,
+ 0x00525252,0x00ebebeb,0x00f3f3f3,0x006d6d6d,
+ 0x005e5e5e,0x00fbfbfb,0x00696969,0x00b2b2b2,
+ 0x00f0f0f0,0x00313131,0x000c0c0c,0x00d4d4d4,
+ 0x00cfcfcf,0x008c8c8c,0x00e2e2e2,0x00757575,
+ 0x00a9a9a9,0x004a4a4a,0x00575757,0x00848484,
+ 0x00111111,0x00454545,0x001b1b1b,0x00f5f5f5,
+ 0x00e4e4e4,0x000e0e0e,0x00737373,0x00aaaaaa,
+ 0x00f1f1f1,0x00dddddd,0x00595959,0x00141414,
+ 0x006c6c6c,0x00929292,0x00545454,0x00d0d0d0,
+ 0x00787878,0x00707070,0x00e3e3e3,0x00494949,
+ 0x00808080,0x00505050,0x00a7a7a7,0x00f6f6f6,
+ 0x00777777,0x00939393,0x00868686,0x00838383,
+ 0x002a2a2a,0x00c7c7c7,0x005b5b5b,0x00e9e9e9,
+ 0x00eeeeee,0x008f8f8f,0x00010101,0x003d3d3d,
+};
+
+static const u32 camellia_sp3033[256] = {
+ 0x38003838,0x41004141,0x16001616,0x76007676,
+ 0xd900d9d9,0x93009393,0x60006060,0xf200f2f2,
+ 0x72007272,0xc200c2c2,0xab00abab,0x9a009a9a,
+ 0x75007575,0x06000606,0x57005757,0xa000a0a0,
+ 0x91009191,0xf700f7f7,0xb500b5b5,0xc900c9c9,
+ 0xa200a2a2,0x8c008c8c,0xd200d2d2,0x90009090,
+ 0xf600f6f6,0x07000707,0xa700a7a7,0x27002727,
+ 0x8e008e8e,0xb200b2b2,0x49004949,0xde00dede,
+ 0x43004343,0x5c005c5c,0xd700d7d7,0xc700c7c7,
+ 0x3e003e3e,0xf500f5f5,0x8f008f8f,0x67006767,
+ 0x1f001f1f,0x18001818,0x6e006e6e,0xaf00afaf,
+ 0x2f002f2f,0xe200e2e2,0x85008585,0x0d000d0d,
+ 0x53005353,0xf000f0f0,0x9c009c9c,0x65006565,
+ 0xea00eaea,0xa300a3a3,0xae00aeae,0x9e009e9e,
+ 0xec00ecec,0x80008080,0x2d002d2d,0x6b006b6b,
+ 0xa800a8a8,0x2b002b2b,0x36003636,0xa600a6a6,
+ 0xc500c5c5,0x86008686,0x4d004d4d,0x33003333,
+ 0xfd00fdfd,0x66006666,0x58005858,0x96009696,
+ 0x3a003a3a,0x09000909,0x95009595,0x10001010,
+ 0x78007878,0xd800d8d8,0x42004242,0xcc00cccc,
+ 0xef00efef,0x26002626,0xe500e5e5,0x61006161,
+ 0x1a001a1a,0x3f003f3f,0x3b003b3b,0x82008282,
+ 0xb600b6b6,0xdb00dbdb,0xd400d4d4,0x98009898,
+ 0xe800e8e8,0x8b008b8b,0x02000202,0xeb00ebeb,
+ 0x0a000a0a,0x2c002c2c,0x1d001d1d,0xb000b0b0,
+ 0x6f006f6f,0x8d008d8d,0x88008888,0x0e000e0e,
+ 0x19001919,0x87008787,0x4e004e4e,0x0b000b0b,
+ 0xa900a9a9,0x0c000c0c,0x79007979,0x11001111,
+ 0x7f007f7f,0x22002222,0xe700e7e7,0x59005959,
+ 0xe100e1e1,0xda00dada,0x3d003d3d,0xc800c8c8,
+ 0x12001212,0x04000404,0x74007474,0x54005454,
+ 0x30003030,0x7e007e7e,0xb400b4b4,0x28002828,
+ 0x55005555,0x68006868,0x50005050,0xbe00bebe,
+ 0xd000d0d0,0xc400c4c4,0x31003131,0xcb00cbcb,
+ 0x2a002a2a,0xad00adad,0x0f000f0f,0xca00caca,
+ 0x70007070,0xff00ffff,0x32003232,0x69006969,
+ 0x08000808,0x62006262,0x00000000,0x24002424,
+ 0xd100d1d1,0xfb00fbfb,0xba00baba,0xed00eded,
+ 0x45004545,0x81008181,0x73007373,0x6d006d6d,
+ 0x84008484,0x9f009f9f,0xee00eeee,0x4a004a4a,
+ 0xc300c3c3,0x2e002e2e,0xc100c1c1,0x01000101,
+ 0xe600e6e6,0x25002525,0x48004848,0x99009999,
+ 0xb900b9b9,0xb300b3b3,0x7b007b7b,0xf900f9f9,
+ 0xce00cece,0xbf00bfbf,0xdf00dfdf,0x71007171,
+ 0x29002929,0xcd00cdcd,0x6c006c6c,0x13001313,
+ 0x64006464,0x9b009b9b,0x63006363,0x9d009d9d,
+ 0xc000c0c0,0x4b004b4b,0xb700b7b7,0xa500a5a5,
+ 0x89008989,0x5f005f5f,0xb100b1b1,0x17001717,
+ 0xf400f4f4,0xbc00bcbc,0xd300d3d3,0x46004646,
+ 0xcf00cfcf,0x37003737,0x5e005e5e,0x47004747,
+ 0x94009494,0xfa00fafa,0xfc00fcfc,0x5b005b5b,
+ 0x97009797,0xfe00fefe,0x5a005a5a,0xac00acac,
+ 0x3c003c3c,0x4c004c4c,0x03000303,0x35003535,
+ 0xf300f3f3,0x23002323,0xb800b8b8,0x5d005d5d,
+ 0x6a006a6a,0x92009292,0xd500d5d5,0x21002121,
+ 0x44004444,0x51005151,0xc600c6c6,0x7d007d7d,
+ 0x39003939,0x83008383,0xdc00dcdc,0xaa00aaaa,
+ 0x7c007c7c,0x77007777,0x56005656,0x05000505,
+ 0x1b001b1b,0xa400a4a4,0x15001515,0x34003434,
+ 0x1e001e1e,0x1c001c1c,0xf800f8f8,0x52005252,
+ 0x20002020,0x14001414,0xe900e9e9,0xbd00bdbd,
+ 0xdd00dddd,0xe400e4e4,0xa100a1a1,0xe000e0e0,
+ 0x8a008a8a,0xf100f1f1,0xd600d6d6,0x7a007a7a,
+ 0xbb00bbbb,0xe300e3e3,0x40004040,0x4f004f4f,
+};
+
+static const u32 camellia_sp4404[256] = {
+ 0x70700070,0x2c2c002c,0xb3b300b3,0xc0c000c0,
+ 0xe4e400e4,0x57570057,0xeaea00ea,0xaeae00ae,
+ 0x23230023,0x6b6b006b,0x45450045,0xa5a500a5,
+ 0xeded00ed,0x4f4f004f,0x1d1d001d,0x92920092,
+ 0x86860086,0xafaf00af,0x7c7c007c,0x1f1f001f,
+ 0x3e3e003e,0xdcdc00dc,0x5e5e005e,0x0b0b000b,
+ 0xa6a600a6,0x39390039,0xd5d500d5,0x5d5d005d,
+ 0xd9d900d9,0x5a5a005a,0x51510051,0x6c6c006c,
+ 0x8b8b008b,0x9a9a009a,0xfbfb00fb,0xb0b000b0,
+ 0x74740074,0x2b2b002b,0xf0f000f0,0x84840084,
+ 0xdfdf00df,0xcbcb00cb,0x34340034,0x76760076,
+ 0x6d6d006d,0xa9a900a9,0xd1d100d1,0x04040004,
+ 0x14140014,0x3a3a003a,0xdede00de,0x11110011,
+ 0x32320032,0x9c9c009c,0x53530053,0xf2f200f2,
+ 0xfefe00fe,0xcfcf00cf,0xc3c300c3,0x7a7a007a,
+ 0x24240024,0xe8e800e8,0x60600060,0x69690069,
+ 0xaaaa00aa,0xa0a000a0,0xa1a100a1,0x62620062,
+ 0x54540054,0x1e1e001e,0xe0e000e0,0x64640064,
+ 0x10100010,0x00000000,0xa3a300a3,0x75750075,
+ 0x8a8a008a,0xe6e600e6,0x09090009,0xdddd00dd,
+ 0x87870087,0x83830083,0xcdcd00cd,0x90900090,
+ 0x73730073,0xf6f600f6,0x9d9d009d,0xbfbf00bf,
+ 0x52520052,0xd8d800d8,0xc8c800c8,0xc6c600c6,
+ 0x81810081,0x6f6f006f,0x13130013,0x63630063,
+ 0xe9e900e9,0xa7a700a7,0x9f9f009f,0xbcbc00bc,
+ 0x29290029,0xf9f900f9,0x2f2f002f,0xb4b400b4,
+ 0x78780078,0x06060006,0xe7e700e7,0x71710071,
+ 0xd4d400d4,0xabab00ab,0x88880088,0x8d8d008d,
+ 0x72720072,0xb9b900b9,0xf8f800f8,0xacac00ac,
+ 0x36360036,0x2a2a002a,0x3c3c003c,0xf1f100f1,
+ 0x40400040,0xd3d300d3,0xbbbb00bb,0x43430043,
+ 0x15150015,0xadad00ad,0x77770077,0x80800080,
+ 0x82820082,0xecec00ec,0x27270027,0xe5e500e5,
+ 0x85850085,0x35350035,0x0c0c000c,0x41410041,
+ 0xefef00ef,0x93930093,0x19190019,0x21210021,
+ 0x0e0e000e,0x4e4e004e,0x65650065,0xbdbd00bd,
+ 0xb8b800b8,0x8f8f008f,0xebeb00eb,0xcece00ce,
+ 0x30300030,0x5f5f005f,0xc5c500c5,0x1a1a001a,
+ 0xe1e100e1,0xcaca00ca,0x47470047,0x3d3d003d,
+ 0x01010001,0xd6d600d6,0x56560056,0x4d4d004d,
+ 0x0d0d000d,0x66660066,0xcccc00cc,0x2d2d002d,
+ 0x12120012,0x20200020,0xb1b100b1,0x99990099,
+ 0x4c4c004c,0xc2c200c2,0x7e7e007e,0x05050005,
+ 0xb7b700b7,0x31310031,0x17170017,0xd7d700d7,
+ 0x58580058,0x61610061,0x1b1b001b,0x1c1c001c,
+ 0x0f0f000f,0x16160016,0x18180018,0x22220022,
+ 0x44440044,0xb2b200b2,0xb5b500b5,0x91910091,
+ 0x08080008,0xa8a800a8,0xfcfc00fc,0x50500050,
+ 0xd0d000d0,0x7d7d007d,0x89890089,0x97970097,
+ 0x5b5b005b,0x95950095,0xffff00ff,0xd2d200d2,
+ 0xc4c400c4,0x48480048,0xf7f700f7,0xdbdb00db,
+ 0x03030003,0xdada00da,0x3f3f003f,0x94940094,
+ 0x5c5c005c,0x02020002,0x4a4a004a,0x33330033,
+ 0x67670067,0xf3f300f3,0x7f7f007f,0xe2e200e2,
+ 0x9b9b009b,0x26260026,0x37370037,0x3b3b003b,
+ 0x96960096,0x4b4b004b,0xbebe00be,0x2e2e002e,
+ 0x79790079,0x8c8c008c,0x6e6e006e,0x8e8e008e,
+ 0xf5f500f5,0xb6b600b6,0xfdfd00fd,0x59590059,
+ 0x98980098,0x6a6a006a,0x46460046,0xbaba00ba,
+ 0x25250025,0x42420042,0xa2a200a2,0xfafa00fa,
+ 0x07070007,0x55550055,0xeeee00ee,0x0a0a000a,
+ 0x49490049,0x68680068,0x38380038,0xa4a400a4,
+ 0x28280028,0x7b7b007b,0xc9c900c9,0xc1c100c1,
+ 0xe3e300e3,0xf4f400f4,0xc7c700c7,0x9e9e009e,
+};
+
+
+#define CAMELLIA_MIN_KEY_SIZE 16
+#define CAMELLIA_MAX_KEY_SIZE 32
+#define CAMELLIA_BLOCK_SIZE 16
+#define CAMELLIA_TABLE_BYTE_LEN 272
+
+
+/* key constants */
+
+#define CAMELLIA_SIGMA1 (0xA09E667F3BCC908B)
+#define CAMELLIA_SIGMA2 (0xB67AE8584CAA73B2)
+#define CAMELLIA_SIGMA3 (0xC6EF372FE94F82BE)
+#define CAMELLIA_SIGMA4 (0x54FF53A5F1D36F1C)
+#define CAMELLIA_SIGMA5 (0x10E527FADE682D1D)
+#define CAMELLIA_SIGMA6 (0xB05688C2B3E6C1FD)
+
+/*
+ * macros
+ */
+#define GETU64(v, pt) \
+ do { \
+ /* latest breed of gcc is clever enough to use move */ \
+ memcpy(&(v), (pt), 8); \
+ (v) = be64_to_cpu(v); \
+ } while(0)
+
+/* rotation right shift 1byte */
+#define ROR8(x) (((x) >> 8) + ((x) << (sizeof(x)*8 - 8)))
+/* rotation left shift 1bit */
+#define ROL1(x) (((x) << 1) + ((x) >> (sizeof(x)*8 - 1)))
+/* rotation left shift 1byte */
+#define ROL8(x) (((x) << 8) + ((x) >> (sizeof(x)*8 - 8)))
+
+#define ROLDQ(l, r, w, bits) \
+ do { \
+ w = l; \
+ l = (l << bits) + (r >> (64 - bits)); \
+ r = (r << bits) + (w >> (64 - bits)); \
+ } while(0)
+
+/*
+ * 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 setup
+ */
+#define CAMELLIA_F(x, k, y, i) \
+ do { \
+ u32 yl, yr; \
+ i = x ^ k; \
+ yl = camellia_sp1110[(u8)i] \
+ ^ camellia_sp0222[(u8)(i >> 24)] \
+ ^ camellia_sp3033[(u8)(i >> 16)] \
+ ^ camellia_sp4404[(u8)(i >> 8)]; \
+ yr = camellia_sp1110[ (i >> 56)] \
+ ^ camellia_sp0222[(u8)(i >> 48)] \
+ ^ camellia_sp3033[(u8)(i >> 40)] \
+ ^ camellia_sp4404[(u8)(i >> 32)]; \
+ yl ^= yr; \
+ yr = ROR8(yr); \
+ yr ^= yl; \
+ y = ((u64)yl << 32) + yr; \
+ } while(0)
+
+#define SUBKEY(INDEX) (subkey[(INDEX)])
+
+#ifdef __BIG_ENDIAN
+#define SUBKEY_L(INDEX) (((u32*)subkey)[(INDEX)*2])
+#define SUBKEY_R(INDEX) (((u32*)subkey)[(INDEX)*2 + 1])
+#else
+#define SUBKEY_L(INDEX) (((u32*)subkey)[(INDEX)*2 + 1])
+#define SUBKEY_R(INDEX) (((u32*)subkey)[(INDEX)*2])
+#endif
+
+static void camellia_setup_tail(u64 *subkey, int max)
+{
+ u32 dw;
+ int 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);
+}
+
+#ifdef __BIG_ENDIAN
+#define subL(INDEX) (((u32*)sub)[(INDEX)*2])
+#define subR(INDEX) (((u32*)sub)[(INDEX)*2 + 1])
+#else
+#define subL(INDEX) (((u32*)sub)[(INDEX)*2 + 1])
+#define subR(INDEX) (((u32*)sub)[(INDEX)*2])
+#endif
+
+static void camellia_setup128(const unsigned char *key, u64 *subkey)
+{
+ u64 kl, kr;
+ u64 i, t, w;
+ u64 kw4;
+ u32 dw;
+ u64 sub[26];
+
+ /**
+ * k == kl || kr (|| is concatination)
+ */
+ GETU64(kl, key );
+ GETU64(kr, key + 8);
+
+ /**
+ * generate KL dependent subkeys
+ */
+ /* kw1 */
+ sub[0] = kl;
+ /* kw2 */
+ sub[1] = kr;
+ /* rotation left shift 15bit */
+ ROLDQ(kl, kr, w, 15);
+ /* k3 */
+ sub[4] = kl;
+ /* k4 */
+ sub[5] = kr;
+ /* rotation left shift 15+30bit */
+ ROLDQ(kl, kr, w, 30);
+ /* k7 */
+ sub[10] = kl;
+ /* k8 */
+ sub[11] = kr;
+ /* rotation left shift 15+30+15bit */
+ ROLDQ(kl, kr, w, 15);
+ /* k10 */
+ sub[13] = kr;
+ /* rotation left shift 15+30+15+17 bit */
+ ROLDQ(kl, kr, w, 17);
+ /* kl3 */
+ sub[16] = kl;
+ /* kl4 */
+ sub[17] = kr;
+ /* rotation left shift 15+30+15+17+17 bit */
+ ROLDQ(kl, kr, w, 17);
+ /* k13 */
+ sub[18] = kl;
+ /* k14 */
+ sub[19] = kr;
+ /* rotation left shift 15+30+15+17+17+17 bit */
+ ROLDQ(kl, kr, w, 17);
+ /* k17 */
+ sub[22] = kl;
+ /* k18 */
+ sub[23] = kr;
+
+ /* generate KA */
+ kl = sub[0];
+ kr = sub[1];
+ CAMELLIA_F(kl, CAMELLIA_SIGMA1, w, i);
+ kr ^= w;
+ CAMELLIA_F(kr, CAMELLIA_SIGMA2, kl, i);
+ /* current status == (kl, w) */
+ CAMELLIA_F(kl, CAMELLIA_SIGMA3, kr, i);
+ kr ^= w;
+ CAMELLIA_F(kr, CAMELLIA_SIGMA4, w, i);
+ kl ^= w;
+
+ /* generate KA dependent subkeys */
+ /* k1, k2 */
+ sub[2] = kl;
+ sub[3] = kr;
+ ROLDQ(kl, kr, w, 15);
+ /* k5,k6 */
+ sub[6] = kl;
+ sub[7] = kr;
+ ROLDQ(kl, kr, w, 15);
+ /* kl1, kl2 */
+ sub[8] = kl;
+ sub[9] = kr;
+ ROLDQ(kl, kr, w, 15);
+ /* k9 */
+ sub[12] = kl;
+ ROLDQ(kl, kr, w, 15);
+ /* k11, k12 */
+ sub[14] = kl;
+ sub[15] = kr;
+ ROLDQ(kl, kr, w, 34);
+ /* k15, k16 */
+ sub[20] = kl;
+ sub[21] = kr;
+ ROLDQ(kl, kr, w, 17);
+ /* kw3, kw4 */
+ sub[24] = kl;
+ sub[25] = kr;
+
+ /* absorb kw2 to other subkeys */
+ /* round 2 */
+ sub[3] ^= sub[1];
+ /* round 4 */
+ sub[5] ^= sub[1];
+ /* round 6 */
+ sub[7] ^= sub[1];
+ subL(1) ^= subR(1) & ~subR(9);
+ dw = subL(1) & subL(9),
+ subR(1) ^= ROL1(dw); /* modified for FLinv(kl2) */
+ /* round 8 */
+ sub[11] ^= sub[1];
+ /* round 10 */
+ sub[13] ^= sub[1];
+ /* round 12 */
+ sub[15] ^= sub[1];
+ subL(1) ^= subR(1) & ~subR(17);
+ dw = subL(1) & subL(17),
+ subR(1) ^= ROL1(dw); /* modified for FLinv(kl4) */
+ /* round 14 */
+ sub[19] ^= sub[1];
+ /* round 16 */
+ sub[21] ^= sub[1];
+ /* round 18 */
+ sub[23] ^= sub[1];
+ /* kw3 */
+ sub[24] ^= sub[1];
+
+ /* absorb kw4 to other subkeys */
+ kw4 = sub[25];
+ /* round 17 */
+ sub[22] ^= kw4;
+ /* round 15 */
+ sub[20] ^= kw4;
+ /* round 13 */
+ sub[18] ^= kw4;
+ kw4 ^= (u64)((u32)kw4 & ~subR(16)) << 32; //kw4l ^= kw4r & ~subR(16);
+ dw = (u32)(kw4 >> 32) & subL(16); // kw4l & subL[16],
+ kw4 ^= ROL1(dw); /* modified for FL(kl3) */
+ /* round 11 */
+ sub[14] ^= kw4;
+ /* round 9 */
+ sub[12] ^= kw4;
+ /* round 7 */
+ sub[10] ^= kw4;
+ kw4 ^= (u64)((u32)kw4 & ~subR(8)) << 32; //kw4l ^= kw4r & ~subR[8];
+ dw = (u32)(kw4 >> 32) & subL(8);
+ kw4 ^= ROL1(dw); /* modified for FL(kl1) */
+ /* round 5 */
+ sub[6] ^= kw4;
+ /* round 3 */
+ sub[4] ^= kw4;
+ /* round 1 */
+ sub[2] ^= kw4;
+ /* kw1 */
+ sub[0] ^= kw4;
+
+ /* key XOR is end of F-function */
+ SUBKEY(0) = sub[0] ^ sub[2];/* kw1 */
+ SUBKEY(2) = sub[3]; /* round 1 */
+ SUBKEY(3) = sub[2] ^ sub[4]; /* round 2 */
+ SUBKEY(4) = sub[3] ^ sub[5]; /* round 3 */
+ SUBKEY(5) = sub[4] ^ sub[6]; /* round 4 */
+ SUBKEY(6) = sub[5] ^ sub[7]; /* round 5 */
+ t = subL(10) ^ (subR(10) & ~subR(8)); // tl = subL[10] ^ (subR[10] & ~subR[8]);
+ dw = (u32)t & subL(8); /* FL(kl1) */
+ t = (t << 32) | (subR(10) ^ ROL1(dw)); // tr = subR[10] ^ ROL1(dw);
+ SUBKEY(7) = sub[6] ^ t; /* round 6 */
+ SUBKEY(8) = sub[8]; /* FL(kl1) */
+ SUBKEY(9) = sub[9]; /* FLinv(kl2) */
+ t = subL(7) ^ (subR(7) & ~subR(9));
+ dw = (u32)t & subL(9); /* FLinv(kl2) */
+ t = (t << 32) | (subR(7) ^ ROL1(dw));
+ SUBKEY(10) = t ^ sub[11]; /* round 7 */
+ SUBKEY(11) = sub[10] ^ sub[12]; /* round 8 */
+ SUBKEY(12) = sub[11] ^ sub[13]; /* round 9 */
+ SUBKEY(13) = sub[12] ^ sub[14]; /* round 10 */
+ SUBKEY(14) = sub[13] ^ sub[15]; /* round 11 */
+ t = subL(18) ^ (subR(18) & ~subR(16));
+ dw = (u32)t & subL(16); /* FL(kl3) */
+ t = (t << 32) | (subR(18) ^ ROL1(dw));
+ SUBKEY(15) = sub[14] ^ t; /* round 12 */
+ SUBKEY(16) = sub[16]; /* FL(kl3) */
+ SUBKEY(17) = sub[17]; /* FLinv(kl4) */
+ t = subL(15) ^ (subR(15) & ~subR(17));
+ dw = (u32)t & subL(17); /* FLinv(kl4) */
+ t = (t << 32) | (subR(15) ^ ROL1(dw));
+ SUBKEY(18) = t ^ sub[19]; /* round 13 */
+ SUBKEY(19) = sub[18] ^ sub[20]; /* round 14 */
+ SUBKEY(20) = sub[19] ^ sub[21]; /* round 15 */
+ SUBKEY(21) = sub[20] ^ sub[22]; /* round 16 */
+ SUBKEY(22) = sub[21] ^ sub[23]; /* round 17 */
+ SUBKEY(23) = sub[22]; /* round 18 */
+ SUBKEY(24) = sub[24] ^ sub[23]; /* kw3 */
+
+ /* apply the inverse of the last half of P-function */
+ camellia_setup_tail(subkey, 24);
+}
+
+static void camellia_setup256(const unsigned char *key, u64 *subkey)
+{
+ u64 kl, kr; /* left half of key */
+ u64 krl, krr; /* right half of key */
+ u64 i, t, w; /* temporary variables */
+ u64 kw4;
+ u32 dw;
+ u64 sub[34];
+
+ /**
+ * key = (kl || kr || krl || krr)
+ * (|| is concatination)
+ */
+ GETU64(kl, key );
+ GETU64(kr, key + 8);
+ GETU64(krl, key + 16);
+ GETU64(krr, key + 24);
+
+ /* generate KL dependent subkeys */
+ /* kw1 */
+ sub[0] = kl;
+ /* kw2 */
+ sub[1] = kr;
+ ROLDQ(kl, kr, w, 45);
+ /* k9 */
+ sub[12] = kl;
+ /* k10 */
+ sub[13] = kr;
+ ROLDQ(kl, kr, w, 15);
+ /* kl3 */
+ sub[16] = kl;
+ /* kl4 */
+ sub[17] = kr;
+ ROLDQ(kl, kr, w, 17);
+ /* k17 */
+ sub[22] = kl;
+ /* k18 */
+ sub[23] = kr;
+ ROLDQ(kl, kr, w, 34);
+ /* k23 */
+ sub[30] = kl;
+ /* k24 */
+ sub[31] = kr;
+
+ /* generate KR dependent subkeys */
+ ROLDQ(krl, krr, w, 15);
+ /* k3 */
+ sub[4] = krl;
+ /* k4 */
+ sub[5] = krr;
+ ROLDQ(krl, krr, w, 15);
+ /* kl1 */
+ sub[8] = krl;
+ /* kl2 */
+ sub[9] = krr;
+ ROLDQ(krl, krr, w, 30);
+ /* k13 */
+ sub[18] = krl;
+ /* k14 */
+ sub[19] = krr;
+ ROLDQ(krl, krr, w, 34);
+ /* k19 */
+ sub[26] = krl;
+ /* k20 */
+ sub[27] = krr;
+ ROLDQ(krl, krr, w, 34);
+
+ /* generate KA */
+ kl = sub[0] ^ krl;
+ kr = sub[1] ^ krr;
+ CAMELLIA_F(kl, CAMELLIA_SIGMA1, w, i);
+ kr ^= w;
+ CAMELLIA_F(kr, CAMELLIA_SIGMA2, kl, i);
+ kl ^= krl;
+ CAMELLIA_F(kl, CAMELLIA_SIGMA3, kr, i);
+ kr ^= w ^ krr;
+ CAMELLIA_F(kr, CAMELLIA_SIGMA4, w, i);
+ kl ^= w;
+
+ /* generate KB */
+ krl ^= kl;
+ krr ^= kr;
+ CAMELLIA_F(krl, CAMELLIA_SIGMA5, w, i);
+ krr ^= w;
+ CAMELLIA_F(krr, CAMELLIA_SIGMA6, w, i);
+ krl ^= w;
+
+ /* generate KA dependent subkeys */
+ ROLDQ(kl, kr, w, 15);
+ /* k5 */
+ sub[6] = kl;
+ /* k6 */
+ sub[7] = kr;
+ ROLDQ(kl, kr, w, 30);
+ /* k11 */
+ sub[14] = kl;
+ /* k12 */
+ sub[15] = kr;
+ /* kl5 */
+ ROLDQ(kl, kr, w, 32);
+ sub[24] = kl;
+ /* kl6 */
+ sub[25] = kr;
+ /* rotation left shift 49 from k11,k12 -> k21,k22 */
+ ROLDQ(kl, kr, w, (49 - 32));
+ /* k21 */
+ sub[28] = kl;
+ /* k22 */
+ sub[29] = kr;
+
+ /* generate KB dependent subkeys */
+ /* k1 */
+ sub[2] = krl;
+ /* k2 */
+ sub[3] = krr;
+ ROLDQ(krl, krr, w, 30);
+ /* k7 */
+ sub[10] = krl;
+ /* k8 */
+ sub[11] = krr;
+ ROLDQ(krl, krr, w, 30);
+ /* k15 */
+ sub[20] = krl;
+ /* k16 */
+ sub[21] = krr;
+ ROLDQ(krl, krr, w, 51);
+ /* kw3 */
+ sub[32] = krl;
+ /* kw4 */
+ sub[33] = krr;
+
+ /* absorb kw2 to other subkeys */
+ /* round 2 */
+ sub[3] ^= sub[1];
+ /* round 4 */
+ sub[5] ^= sub[1];
+ /* round 6 */
+ sub[7] ^= sub[1];
+ subL(1) ^= subR(1) & ~subR(9);
+ dw = subL(1) & subL(9),
+ subR(1) ^= ROL1(dw); /* modified for FLinv(kl2) */
+ /* round 8 */
+ sub[11] ^= sub[1];
+ /* round 10 */
+ sub[13] ^= sub[1];
+ /* round 12 */
+ sub[15] ^= sub[1];
+ subL(1) ^= subR(1) & ~subR(17);
+ dw = subL(1) & subL(17),
+ subR(1) ^= ROL1(dw); /* modified for FLinv(kl4) */
+ /* round 14 */
+ sub[19] ^= sub[1];
+ /* round 16 */
+ sub[21] ^= sub[1];
+ /* round 18 */
+ sub[23] ^= sub[1];
+ subL(1) ^= subR(1) & ~subR(25);
+ dw = subL(1) & subL(25),
+ subR(1) ^= ROL1(dw); /* modified for FLinv(kl6) */
+ /* round 20 */
+ sub[27] ^= sub[1];
+ /* round 22 */
+ sub[29] ^= sub[1];
+ /* round 24 */
+ sub[31] ^= sub[1];
+ /* kw3 */
+ sub[32] ^= sub[1];
+
+ /* absorb kw4 to other subkeys */
+ kw4 = sub[33];
+ /* round 23 */
+ sub[30] ^= kw4;
+ /* round 21 */
+ sub[28] ^= kw4;
+ /* round 19 */
+ sub[26] ^= kw4;
+ kw4 ^= (u64)((u32)kw4 & ~subR(24)) << 32; //kw4l ^= kw4r & ~subR[24];
+ dw = (u32)(kw4 >> 32) & subL(24),
+ kw4 ^= ROL1(dw); /* modified for FL(kl5) */
+ /* round 17 */
+ sub[22] ^= kw4;
+ /* round 15 */
+ sub[20] ^= kw4;
+ /* round 13 */
+ sub[18] ^= kw4;
+ kw4 ^= (u64)((u32)kw4 & ~subR(16)) << 32;
+ dw = (u32)(kw4 >> 32) & subL(16),
+ kw4 ^= ROL1(dw); /* modified for FL(kl3) */
+ /* round 11 */
+ sub[14] ^= kw4;
+ /* round 9 */
+ sub[12] ^= kw4;
+ /* round 7 */
+ sub[10] ^= kw4;
+ kw4 ^= (u64)((u32)kw4 & ~subR(8)) << 32;
+ dw = (u32)(kw4 >> 32) & subL(8),
+ kw4 ^= ROL1(dw); /* modified for FL(kl1) */
+ /* round 5 */
+ sub[6] ^= kw4;
+ /* round 3 */
+ sub[4] ^= kw4;
+ /* round 1 */
+ sub[2] ^= kw4;
+ /* kw1 */
+ sub[0] ^= kw4;
+
+ /* key XOR is end of F-function */
+ SUBKEY(0) = sub[0] ^ sub[2];/* kw1 */
+ SUBKEY(2) = sub[3]; /* round 1 */
+ SUBKEY(3) = sub[2] ^ sub[4]; /* round 2 */
+ SUBKEY(4) = sub[3] ^ sub[5]; /* round 3 */
+ SUBKEY(5) = sub[4] ^ sub[6]; /* round 4 */
+ SUBKEY(6) = sub[5] ^ sub[7]; /* round 5 */
+ t = subL(10) ^ (subR(10) & ~subR(8)); // tl = subL[10] ^ (subR[10] & ~subR[8]);
+ dw = (u32)t & subL(8); /* FL(kl1) */
+ t = (t << 32) | (subR(10) ^ ROL1(dw)); //tr = subR[10] ^ ROL1(dw);
+ SUBKEY(7) = sub[6] ^ t; /* round 6 */
+ SUBKEY(8) = sub[8]; /* FL(kl1) */
+ SUBKEY(9) = sub[9]; /* FLinv(kl2) */
+ t = subL(7) ^ (subR(7) & ~subR(9));
+ dw = (u32)t & subL(9); /* FLinv(kl2) */
+ t = (t << 32) | (subR(7) ^ ROL1(dw));
+ SUBKEY(10) = t ^ sub[11]; /* round 7 */
+ SUBKEY(11) = sub[10] ^ sub[12]; /* round 8 */
+ SUBKEY(12) = sub[11] ^ sub[13]; /* round 9 */
+ SUBKEY(13) = sub[12] ^ sub[14]; /* round 10 */
+ SUBKEY(14) = sub[13] ^ sub[15]; /* round 11 */
+ t = subL(18) ^ (subR(18) & ~subR(16));
+ dw = (u32)t & subL(16); /* FL(kl3) */
+ t = (t << 32) | (subR(18) ^ ROL1(dw));
+ SUBKEY(15) = sub[14] ^ t; /* round 12 */
+ SUBKEY(16) = sub[16]; /* FL(kl3) */
+ SUBKEY(17) = sub[17]; /* FLinv(kl4) */
+ t = subL(15) ^ (subR(15) & ~subR(17));
+ dw = (u32)t & subL(17); /* FLinv(kl4) */
+ t = (t << 32) | (subR(15) ^ ROL1(dw));
+ SUBKEY(18) = t ^ sub[19]; /* round 13 */
+ SUBKEY(19) = sub[18] ^ sub[20]; /* round 14 */
+ SUBKEY(20) = sub[19] ^ sub[21]; /* round 15 */
+ SUBKEY(21) = sub[20] ^ sub[22]; /* round 16 */
+ SUBKEY(22) = sub[21] ^ sub[23]; /* round 17 */
+ t = subL(26) ^ (subR(26) & ~subR(24));
+ dw = (u32)t & subL(24); /* FL(kl5) */
+ t = (t << 32) | (subR(26) ^ ROL1(dw));
+ SUBKEY(23) = sub[22] ^ t; /* round 18 */
+ SUBKEY(24) = sub[24]; /* FL(kl5) */
+ SUBKEY(25) = sub[25]; /* FLinv(kl6) */
+ t = subL(23) ^ (subR(23) & ~subR(25));
+ dw = (u32)t & subL(25); /* FLinv(kl6) */
+ t = (t << 32) | (subR(23) ^ ROL1(dw));
+ SUBKEY(26) = t ^ sub[27]; /* round 19 */
+ SUBKEY(27) = sub[26] ^ sub[28]; /* round 20 */
+ SUBKEY(28) = sub[27] ^ sub[29]; /* round 21 */
+ SUBKEY(29) = sub[28] ^ sub[30]; /* round 22 */
+ SUBKEY(30) = sub[29] ^ sub[31]; /* round 23 */
+ SUBKEY(31) = sub[30]; /* round 24 */
+ SUBKEY(32) = sub[32] ^ sub[31]; /* kw3 */
+
+ /* apply the inverse of the last half of P-function */
+ camellia_setup_tail(subkey, 32);
+}
+
+static void camellia_setup192(const unsigned char *key, u64 *subkey)
+{
+ unsigned char kk[32];
+ u64 krl, krr;
+
+ memcpy(kk, key, 24);
+ memcpy((unsigned char *)&krl, key+16, 8);
+ krr = ~krl;
+ memcpy(kk+24, (unsigned char *)&krr, 8);
+ camellia_setup256(kk, subkey);
+}
+
+
+/*
+ * Encrypt/decrypt
+ */
+#define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) \
+ do { \
+ t0 = kll & ll; \
+ t2 = krr | rr; \
+ rl ^= t2; \
+ lr ^= ROL1(t0); \
+ t3 = krl & rl; \
+ t1 = klr | lr; \
+ ll ^= t1; \
+ rr ^= ROL1(t3); \
+ } while(0)
+
+#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)
+
+/* max = 24: 128bit encrypt, max = 32: 256bit encrypt */
+static void camellia_do_encrypt(const u64 *subkey, u32 *io, unsigned max)
+{
+ u32 il,ir,t0,t1; /* temporary variables */
+
+ /* pre whitening but absorb kw2 */
+ io[0] ^= SUBKEY_L(0);
+ io[1] ^= SUBKEY_R(0);
+
+ /* main iteration */
+#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);
+ }
+
+#undef ROUNDS
+#undef FLS
+
+ /* post whitening but kw4 */
+ io[2] ^= SUBKEY_L(max);
+ io[3] ^= SUBKEY_R(max);
+ /* NB: 0,1 should be swapped with 2,3 by caller! */
+}
+
+static void camellia_do_decrypt(const u64 *subkey, u32 *io, unsigned i)
+{
+ u32 il,ir,t0,t1; /* temporary variables */
+
+ /* pre whitening but absorb kw2 */
+ io[0] ^= SUBKEY_L(i);
+ io[1] ^= SUBKEY_R(i);
+
+ /* main iteration */
+#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);
+
+#undef ROUNDS
+#undef FLS
+
+ /* 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;
+ u64 key_table[CAMELLIA_TABLE_BYTE_LEN / 8];
+};
+
+static int
+camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
+ const unsigned char *key = (const unsigned char *)in_key;
+ u32 *flags = &tfm->crt_flags;
+
+ if (key_len != 16 && key_len != 24 && key_len != 32) {
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ return -EINVAL;
+ }
+
+ cctx->key_length = key_len;
+
+ switch (key_len) {
+ case 16:
+ camellia_setup128(key, cctx->key_table);
+ break;
+ case 24:
+ camellia_setup192(key, cctx->key_table);
+ break;
+ case 32:
+ camellia_setup256(key, cctx->key_table);
+ break;
+ }
+
+ return 0;
+}
+
+static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+{
+ const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
+ const __be32 *src = (const __be32 *)in;
+ __be32 *dst = (__be32 *)out;
+
+ u32 tmp[4];
+
+ 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]);
+
+ camellia_do_encrypt(cctx->key_table, tmp,
+ cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */
+ );
+
+ /* 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 struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
+ const __be32 *src = (const __be32 *)in;
+ __be32 *dst = (__be32 *)out;
+
+ u32 tmp[4];
+
+ 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]);
+
+ camellia_do_decrypt(cctx->key_table, tmp,
+ cctx->key_length == 16 ? 24 : 32 /* for key lengths of 24 and 32 */
+ );
+
+ /* 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 = {
+ .cra_name = "camellia",
+ .cra_driver_name = "camellia-generic",
+ .cra_priority = 100,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct camellia_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(camellia_alg.cra_list),
+ .cra_u = {
+ .cipher = {
+ .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .cia_setkey = camellia_set_key,
+ .cia_encrypt = camellia_encrypt,
+ .cia_decrypt = camellia_decrypt
+ }
+ }
+};
+
+static int __init camellia_init(void)
+{
+ return crypto_register_alg(&camellia_alg);
+}
+
+static void __exit camellia_fini(void)
+{
+ crypto_unregister_alg(&camellia_alg);
+}
+
+module_init(camellia_init);
+module_exit(camellia_fini);
+
+MODULE_DESCRIPTION("Camellia Cipher Algorithm");
+MODULE_LICENSE("GPL");
