diff options
| -rw-r--r-- | ChangeLog | 30 | ||||
| -rw-r--r-- | Makefile.in | 7 | ||||
| -rw-r--r-- | camellia-crypt-internal.c | 139 | ||||
| -rw-r--r-- | camellia-crypt.c | 45 | ||||
| -rw-r--r-- | camellia-internal.h | 74 | ||||
| -rw-r--r-- | camellia-set-decrypt-key.c | 63 | ||||
| -rw-r--r-- | camellia-set-encrypt-key.c | 436 | ||||
| -rw-r--r-- | camellia-table.c | 310 | ||||
| -rw-r--r-- | camellia.c | 959 |
9 files changed, 1102 insertions, 961 deletions
@@ -1,5 +1,35 @@ +2010-07-24 Niels Möller <nisse@lysator.liu.se> + + * camellia-set-encrypt-key.c (camellia_setup128): Generate + unmodified subkeys according to the spec. Moved clever combination + of subkeys to camellia_set_encrypt_key. + (camellia_setup256): Likewise. + (camellia_set_encrypt_key): Moved subkey post-processing code + here, and reduce code duplication between 128-bit keys and larger + keys. + + * camellia.c: Deleted file, split into several new files... + * camellia-table.c (_camellia_table): New file with the constant + sbox tables. + * camellia-set-encrypt-key.c: New file. + (camellia_setup128): Generate unmodified subkeys according to the + spec. Moved clever combination of subkeys to camellia_set_encrypt_key. + (camellia_setup256): Likewise. + + * camellia-set-decrypt-key.c: New file. + (camellia_invert_key): Key inversion function. + (camellia_set_decrypt_key): New key setup function. + * camellia-internal.h: New file. + * camellia-crypt.c (camellia_crypt): New file, new wrapper + function passing the sbox table to _camellia_crypt. + * camellia-crypt-internal.c (_camellia_crypt): New file, with main + encrypt/decrypt function. + * Makefile.in (nettle_SOURCES): Updated list of camellia source files. + (DISTFILES): Added camellia-internal.h. 2010-07-20 Niels Möller <nisse@lysator.liu.se> + * camellia-meta.c: Use _NETTLE_CIPHER_SEP_SET_KEY. + * camellia.h (struct camellia_ctx): Replaced flag camellia128 by expanded key length nkeys. diff --git a/Makefile.in b/Makefile.in index 837e8cbc..ff15d748 100644 --- a/Makefile.in +++ b/Makefile.in @@ -55,7 +55,10 @@ nettle_SOURCES = aes-decrypt-internal.c aes-decrypt.c \ arctwo.c arctwo-meta.c \ base16-encode.c base16-decode.c base16-meta.c \ base64-encode.c base64-decode.c base64-meta.c \ - camellia.c camellia-meta.c cast128.c cast128-meta.c \ + camellia-crypt.c camellia-crypt-internal.c \ + camellia-set-encrypt-key.c camellia-set-decrypt-key.c \ + camellia-table.c camellia-meta.c \ + cast128.c cast128-meta.c \ blowfish.c \ cbc.c ctr.c \ des.c \ @@ -122,7 +125,7 @@ DISTFILES = $(SOURCES) $(HEADERS) .bootstrap aclocal.m4 configure.ac \ config.h.in config.m4.in config.make.in Makefile.in \ README AUTHORS COPYING COPYING.LIB INSTALL NEWS TODO ChangeLog \ memxor.c $(des_headers) descore.README \ - aes-internal.h cast128_sboxes.h desinfo.h desCode.h \ + aes-internal.h camellia-internal.h cast128_sboxes.h desinfo.h desCode.h \ serpent_sboxes.h nettle-internal.h nettle-write.h prime-list.h \ asm.m4 \ nettle.texinfo nettle.info nettle.html nettle.pdf sha-example.c diff --git a/camellia-crypt-internal.c b/camellia-crypt-internal.c new file mode 100644 index 00000000..4c5dce85 --- /dev/null +++ b/camellia-crypt-internal.c @@ -0,0 +1,139 @@ +/* camellia-crypt-internal.c + * + * Copyright (C) 2006,2007 + * NTT (Nippon Telegraph and Telephone Corporation). + * + * Copyright (C) 2010 Niels Möller + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * Algorithm Specification + * http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html + */ + +/* Based on camellia.c ver 1.2.0, see + http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-LGPL-1.2.0.tar.gz. + */ +#if HAVE_CONFIG_H +# include "config.h" +#endif + +#include <assert.h> + +#include "camellia-internal.h" + +#include "macros.h" + +#define CAMELLIA_FL(x, k) do { \ + uint32_t __xl, __xr, __kl, __kr, __t; \ + __xl = (x) >> 32; \ + __xr = (x) & 0xffffffff; \ + __kl = (k) >> 32; \ + __kr = (k) & 0xffffffff; \ + __t = __xl & __kl; \ + __xr ^= ROL32(1, __t); \ + __xl ^= (__xr | __kr); \ + (x) = ((uint64_t) __xl << 32) | __xr; \ +} while (0) + +#define CAMELLIA_FLINV(x, k) do { \ + uint32_t __xl, __xr, __kl, __kr, __t; \ + __xl = (x) >> 32; \ + __xr = (x) & 0xffffffff; \ + __kl = (k) >> 32; \ + __kr = (k) & 0xffffffff; \ + __xl ^= (__xr | __kr); \ + __t = __xl & __kl; \ + __xr ^= ROL32(1, __t); \ + (x) = ((uint64_t) __xl << 32) | __xr; \ +} while (0) + +#define CAMELLIA_ROUNDSM(T, x, k, y) do { \ + uint32_t __il, __ir; \ + __ir \ + = T->sp1110[(x) & 0xff] \ + ^ T->sp0222[((x) >> 24) & 0xff] \ + ^ T->sp3033[((x) >> 16) & 0xff] \ + ^ T->sp4404[((x) >> 8) & 0xff]; \ + /* ir == (t6^t7^t8),(t5^t7^t8),(t5^t6^t8),(t5^t6^t7) */ \ + __il \ + = T->sp1110[ (x) >> 56] \ + ^ T->sp0222[((x) >> 48) & 0xff] \ + ^ T->sp3033[((x) >> 40) & 0xff] \ + ^ T->sp4404[((x) >> 32) & 0xff]; \ + /* il == (t1^t3^t4),(t1^t2^t4),(t1^t2^t3),(t2^t3^t4) */ \ + __il ^= (k) >> 32; \ + __ir ^= (k) & 0xffffffff; \ + __ir ^= __il; \ + /* ir == (t1^t3^t4^t6^t7^t8),(t1^t2^t4^t5^t7^t8), \ + (t1^t2^t3^t5^t6^t8),(t2^t3^t4^t5^t6^t7) \ + == y1,y2,y3,y4 */ \ + __il = ROL32(24, __il); \ + /* il == (t2^t3^t4),(t1^t3^t4),(t1^t2^t4),(t1^t2^t3) */ \ + __il ^= __ir; \ + /* il == (t1^t2^t6^t7^t8),(t2^t3^t5^t7^t8), \ + (t3^t4^t5^t6^t8),(t1^t4^t5^t6^t7) \ + == y5,y6,y7,y8 */ \ + y ^= ((uint64_t) __ir << 32) | __il; \ + } while (0) + +void +_camellia_crypt(const struct camellia_ctx *ctx, + const struct camellia_table *T, + unsigned length, uint8_t *dst, + const uint8_t *src) +{ + FOR_BLOCKS(length, dst, src, CAMELLIA_BLOCK_SIZE) + { + uint64_t i0,i1; + unsigned i; + + i0 = READ_UINT64(src); + i1 = READ_UINT64(src + 8); + + /* pre whitening but absorb kw2*/ + i0 ^= ctx->keys[0]; + + /* main iteration */ + + CAMELLIA_ROUNDSM(T, i0,ctx->keys[2], i1); + CAMELLIA_ROUNDSM(T, i1,ctx->keys[3], i0); + CAMELLIA_ROUNDSM(T, i0,ctx->keys[4], i1); + CAMELLIA_ROUNDSM(T, i1,ctx->keys[5], i0); + CAMELLIA_ROUNDSM(T, i0,ctx->keys[6], i1); + CAMELLIA_ROUNDSM(T, i1,ctx->keys[7], i0); + + for (i = 0; i < ctx->nkeys - 10; i+= 8) + { + CAMELLIA_FL(i0, ctx->keys[i+8]); + CAMELLIA_FLINV(i1, ctx->keys[i+9]); + + CAMELLIA_ROUNDSM(T, i0,ctx->keys[i+10], i1); + CAMELLIA_ROUNDSM(T, i1,ctx->keys[i+11], i0); + CAMELLIA_ROUNDSM(T, i0,ctx->keys[i+12], i1); + CAMELLIA_ROUNDSM(T, i1,ctx->keys[i+13], i0); + CAMELLIA_ROUNDSM(T, i0,ctx->keys[i+14], i1); + CAMELLIA_ROUNDSM(T, i1,ctx->keys[i+15], i0); + } + + /* post whitening but kw4 */ + i1 ^= ctx->keys[i+8]; + + WRITE_UINT64(dst , i1); + WRITE_UINT64(dst + 8, i0); + } +} diff --git a/camellia-crypt.c b/camellia-crypt.c new file mode 100644 index 00000000..62c3435c --- /dev/null +++ b/camellia-crypt.c @@ -0,0 +1,45 @@ +/* camellia-encrypt.c + * + * Crypt function for the camellia block cipher. + */ + +/* nettle, low-level cryptographics library + * + * Copyright (C) 2010 Niels Möller + * + * The nettle library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or (at your + * option) any later version. + * + * The nettle library 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 Lesser General Public + * License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with the nettle library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + * MA 02111-1307, USA. + */ + +#if HAVE_CONFIG_H +# include "config.h" +#endif + +#include <assert.h> + +#include "camellia-internal.h" + +/* The main point on this function is to help the assembler + implementations of _nettle_camellia_crypt to get the table pointer. + For PIC code, the details can be complex and system dependent. */ +void +camellia_crypt(const struct camellia_ctx *ctx, + unsigned length, uint8_t *dst, + const uint8_t *src) +{ + assert(!(length % CAMELLIA_BLOCK_SIZE) ); + _camellia_crypt(ctx, &_camellia_table, + length, dst, src); +} diff --git a/camellia-internal.h b/camellia-internal.h new file mode 100644 index 00000000..f9d40fc1 --- /dev/null +++ b/camellia-internal.h @@ -0,0 +1,74 @@ +/* camellia-internal.h + * + * The camellia block cipher. + */ + +/* Copyright (C) 2006,2007 + * NTT (Nippon Telegraph and Telephone Corporation). + * + * Copyright (C) 2010 Niels Möller + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * Algorithm Specification + * http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html + */ + +/* Based on camellia.c ver 1.2.0, see + http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-LGPL-1.2.0.tar.gz. + */ + +#ifndef NETTLE_CAMELLIA_INTERNAL_H_INCLUDED +#define NETTLE_CAMELLIA_INTERNAL_H_INCLUDED + +#include "camellia.h" + +/* Name mangling */ +#define _camellia_crypt _nettle_camellia_crypt +#define _camellia_table _nettle_camellia_table + +/* + * macros + */ + +/* Rotation of 32-bit values. */ +#define ROL32(bits, x) (((x) << (bits)) | ((x) >> (32 - (bits)))) + +/* Destructive rotation of 128 bit values. */ +#define ROL128(bits, xl, xr) do { \ + uint64_t __rol128_t = (xl); \ + (xl) = ((xl) << (bits)) | ((xr) >> (64 - (bits))); \ + (xr) = ((xr) << (bits)) | (__rol128_t >> (64 - (bits))); \ + } while (0) + +struct camellia_table +{ + uint32_t sp1110[256]; + uint32_t sp0222[256]; + uint32_t sp3033[256]; + uint32_t sp4404[256]; +}; + +void +_camellia_crypt(const struct camellia_ctx *ctx, + const struct camellia_table *T, + unsigned length, uint8_t *dst, + const uint8_t *src); + +extern const struct camellia_table _camellia_table; + +#endif /* NETTLE_CAMELLIA_INTERNAL_H_INCLUDED */ diff --git a/camellia-set-decrypt-key.c b/camellia-set-decrypt-key.c new file mode 100644 index 00000000..761dcda8 --- /dev/null +++ b/camellia-set-decrypt-key.c @@ -0,0 +1,63 @@ +/* camellia-set-decrypt-key.c + * + * Inverse key setup for the camellia block cipher. + */ + +/* nettle, low-level cryptographics library + * + * Copyright (C) 2010 Niels Möller + * + * The nettle library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or (at your + * option) any later version. + * + * The nettle library 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 Lesser General Public + * License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with the nettle library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + * MA 02111-1307, USA. + */ + +#if HAVE_CONFIG_H +# include "config.h" +#endif + +#include "camellia.h" + +#define SWAP(a, b) \ +do { uint64_t t_swap = (a); (a) = (b); (b) = t_swap; } while(0) + +void +camellia_invert_key(struct camellia_ctx *dst, + const struct camellia_ctx *src) +{ + unsigned nkeys = src->nkeys; + unsigned i; + if (dst == src) + { + SWAP(dst->keys[0], dst->keys[nkeys - 2]); + for (i = 2; i < nkeys - 1 - i; i++) + SWAP(dst->keys[i], dst->keys[nkeys - 1 - i]); + } + else + { + dst->nkeys = nkeys; + dst->keys[0] = src->keys[nkeys - 2]; + for (i = 2; i < nkeys - 2; i++) + dst->keys[i] = src->keys[nkeys - 1 - i]; + dst->keys[nkeys - 2] = src->keys[0]; + } +} + +void +camellia_set_decrypt_key(struct camellia_ctx *ctx, + unsigned length, const uint8_t *key) +{ + camellia_set_encrypt_key(ctx, length, key); + camellia_invert_key(ctx, ctx); +} diff --git a/camellia-set-encrypt-key.c b/camellia-set-encrypt-key.c new file mode 100644 index 00000000..dc635642 --- /dev/null +++ b/camellia-set-encrypt-key.c @@ -0,0 +1,436 @@ +/* camellia-set-encrypt-key.c + * + * Key setup for the camellia block cipher. + */ +/* + * Copyright (C) 2006,2007 + * NTT (Nippon Telegraph and Telephone Corporation). + * + * Copyright (C) 2010 Niels Möller + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * Algorithm Specification + * http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html + */ + +/* Based on camellia.c ver 1.2.0, see + http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-LGPL-1.2.0.tar.gz. + */ +#if HAVE_CONFIG_H +# include "config.h" +#endif + +#include <assert.h> + +#include "camellia-internal.h" + +#include "macros.h" + +/* key constants */ + +#define SIGMA1 0xA09E667F3BCC908BULL +#define SIGMA2 0xB67AE8584CAA73B2ULL +#define SIGMA3 0xC6EF372FE94F82BEULL +#define SIGMA4 0x54FF53A5F1D36F1CULL +#define SIGMA5 0x10E527FADE682D1DULL +#define SIGMA6 0xB05688C2B3E6C1FDULL + +#define CAMELLIA_SP1110(INDEX) (_nettle_camellia_table.sp1110[(int)(INDEX)]) +#define CAMELLIA_SP0222(INDEX) (_nettle_camellia_table.sp0222[(int)(INDEX)]) +#define CAMELLIA_SP3033(INDEX) (_nettle_camellia_table.sp3033[(int)(INDEX)]) +#define CAMELLIA_SP4404(INDEX) (_nettle_camellia_table.sp4404[(int)(INDEX)]) + +#define CAMELLIA_F(x, k, y) do { \ + uint32_t __yl, __yr; \ + uint64_t __i = (x) ^ (k); \ + __yl \ + = CAMELLIA_SP1110( __i & 0xff) \ + ^ CAMELLIA_SP0222((__i >> 24) & 0xff) \ + ^ CAMELLIA_SP3033((__i >> 16) & 0xff) \ + ^ CAMELLIA_SP4404((__i >> 8) & 0xff); \ + __yr \ + = CAMELLIA_SP1110( __i >> 56) \ + ^ CAMELLIA_SP0222((__i >> 48) & 0xff) \ + ^ CAMELLIA_SP3033((__i >> 40) & 0xff) \ + ^ CAMELLIA_SP4404((__i >> 32) & 0xff); \ + __yl ^= __yr; \ + __yr = ROL32(24, __yr); \ + __yr ^= __yl; \ + (y) = ((uint64_t) __yl << 32) | __yr; \ + } while (0) + +#define CAMELLIA_F_HALF_INV(x) do { \ + uint32_t __t, __w; \ + __t = (x) >> 32; \ + __w = __t ^(x); \ + __w = ROL32(8, __w); \ + (x) = ((uint64_t) __w << 32) | (__t ^ __w); \ + } while (0) + + +static void +camellia_setup128(uint64_t *subkey, const uint64_t *key) +{ + uint64_t k0, k1, w; + + /** + * k == k0 || k1 (|| is concatenation) + */ + k0 = key[0]; + k1 = key[1]; + + /** + * generate KL dependent subkeys + */ + subkey[0] = k0; subkey[1] = k1; + ROL128(15, k0, k1); + subkey[4] = k0; subkey[5] = k1; + ROL128(30, k0, k1); + subkey[10] = k0; subkey[11] = k1; + ROL128(15, k0, k1); + subkey[13] = k1; + ROL128(17, k0, k1); + subkey[16] = k0; subkey[17] = k1; + ROL128(17, k0, k1); + subkey[18] = k0; subkey[19] = k1; + ROL128(17, k0, k1); + subkey[22] = k0; subkey[23] = k1; + + /* generate KA. D1 is k0, d2 is k1. */ + /* FIXME: Make notation match the spec better. */ + /* For the 128-bit case, KR = 0, the construvtion of KA reduces to: + + D1 = KL >> 64; + W = KL & MASK64; + D2 = F(D1, Sigma1); + W = D2 ^ W + D1 = F(W, Sigma2) + D2 = D2 ^ F(D1, Sigma3); + D1 = D1 ^ F(D2, Sigma4); + KA = (D1 << 64) | D2; + */ + k0 = subkey[0]; w = subkey[1]; + CAMELLIA_F(k0, SIGMA1, k1); + w ^= k1; + CAMELLIA_F(w, SIGMA2, k0); + CAMELLIA_F(k0, SIGMA3, w); + k1 ^= w; + CAMELLIA_F(k1, SIGMA4, w); + k0 ^= w; + + /* generate KA dependent subkeys */ + subkey[2] = k0; subkey[3] = k1; + ROL128(15, k0, k1); + subkey[6] = k0; subkey[7] = k1; + ROL128(15, k0, k1); + subkey[8] = k0; subkey[9] = k1; + ROL128(15, k0, k1); + subkey[12] = k0; + ROL128(15, k0, k1); + subkey[14] = k0; subkey[15] = k1; + ROL128(34, k0, k1); + subkey[20] = k0; subkey[21] = k1; + ROL128(17, k0, k1); + subkey[24] = k0; subkey[25] = k1; + + return; +} + +static void +camellia_setup256(uint64_t *subkey, const uint64_t *key) +{ + uint64_t k0, k1, k2, k3; + uint64_t w; + + /** + * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr) + * (|| is concatenation) + */ + + k0 = key[0]; + k1 = key[1]; + k2 = key[2]; + k3 = key[3]; + + /* generate KL dependent subkeys */ + subkey[0] = k0; subkey[1] = k1; + ROL128(45, k0, k1); + subkey[12] = k0; subkey[13] = k1; + ROL128(15, k0, k1); + subkey[16] = k0; subkey[17] = k1; + ROL128(17, k0, k1); + subkey[22] = k0; subkey[23] = k1; + ROL128(34, k0, k1); + subkey[30] = k0; subkey[31] = k1; + + /* generate KR dependent subkeys */ + ROL128(15, k2, k3); + subkey[4] = k2; subkey[5] = k3; + ROL128(15, k2, k3); + subkey[8] = k2; subkey[9] = k3; + ROL128(30, k2, k3); + subkey[18] = k2; subkey[19] = k3; + ROL128(34, k2, k3); + subkey[26] = k2; subkey[27] = k3; + ROL128(34, k2, k3); + + /* generate KA */ + /* The construction of KA is done as + + D1 = (KL ^ KR) >> 64 + D2 = (KL ^ KR) & MASK64 + W = F(D1, SIGMA1) + D2 = D2 ^ W + D1 = F(D2, SIGMA2) ^ (KR >> 64) + D2 = F(D1, SIGMA3) ^ W ^ (KR & MASK64) + D1 = D1 ^ F(W, SIGMA2) + D2 = D2 ^ F(D1, SIGMA3) + D1 = D1 ^ F(D2, SIGMA4) + */ + + k0 = subkey[0] ^ k2; + k1 = subkey[1] ^ k3; + + CAMELLIA_F(k0, SIGMA1, w); + k1 ^= w; + + CAMELLIA_F(k1, SIGMA2, k0); + k0 ^= k2; + + CAMELLIA_F(k0, SIGMA3, k1); + k1 ^= w ^ k3; + + CAMELLIA_F(k1, SIGMA4, w); + k0 ^= w; + + /* generate KB */ + k2 ^= k0; k3 ^= k1; + CAMELLIA_F(k2, SIGMA5, w); + k3 ^= w; + CAMELLIA_F(k3, SIGMA6, w); + k2 ^= w; + + /* generate KA dependent subkeys */ + ROL128(15, k0, k1); + subkey[6] = k0; subkey[7] = k1; + ROL128(30, k0, k1); + subkey[14] = k0; subkey[15] = k1; + ROL128(32, k0, k1); + subkey[24] = k0; subkey[25] = k1; + ROL128(17, k0, k1); + subkey[28] = k0; subkey[29] = k1; + + /* generate KB dependent subkeys */ + subkey[2] = k2; subkey[3] = k3; + ROL128(30, k2, k3); + subkey[10] = k2; subkey[11] = k3; + ROL128(30, k2, k3); + subkey[20] = k2; subkey[21] = k3; + ROL128(51, k2, k3); + subkey[32] = k2; subkey[33] = k3; + + return; +} + +void +camellia_set_encrypt_key(struct camellia_ctx *ctx, + unsigned length, const uint8_t *key) +{ + uint64_t k[4]; + + /* Subkeys according to the spec, 26 for short keys and 34 for large + keys */ + uint64_t subkey[34]; + uint64_t kw4; + + uint32_t dw, tl, tr; + unsigned i; + + k[0] = READ_UINT64(key); + k[1] = READ_UINT64(key + 8); + + if (length == 16) + { + ctx->nkeys = 26; + camellia_setup128(subkey, k); + } + else + { + ctx->nkeys = 34; + k[2] = READ_UINT64(key + 16); + + if (length == 24) + k[3] = ~k[2]; + else + { + assert (length == 32); + k[3] = READ_UINT64(key + 24); + } + camellia_setup256(subkey, k); + } + + /* absorb kw2 to other subkeys */ + subkey[3] ^= subkey[1]; + subkey[5] ^= subkey[1]; + subkey[7] ^= subkey[1]; + /* FIXME: gcc for x86_32 is smart enough to fetch the 32 low bits + and xor the result into the 32 high bits, but it still generates + worse code than for explicit 32-bit operations. */ + subkey[1] ^= (subkey[1] & ~subkey[9]) << 32; + dw = (subkey[1] & subkey[9]) >> 32; subkey[1] ^= ROL32(1, dw); + + subkey[11] ^= subkey[1]; + subkey[13] ^= subkey[1]; + subkey[15] ^= subkey[1]; + subkey[1] ^= (subkey[1] & ~subkey[17]) << 32; + dw = (subkey[1] & subkey[17]) >> 32; subkey[1] ^= ROL32(1, dw); + + subkey[19] ^= subkey[1]; + subkey[21] ^= subkey[1]; + subkey[23] ^= subkey[1]; + if (ctx->nkeys < 32) + { + subkey[24] ^= subkey[1]; + } + else + { + subkey[1] ^= (subkey[1] & ~subkey[25]) << 32; + dw = (subkey[1] & subkey[25]) >> 32; subkey[1] ^= ROL32(1, dw); + + subkey[27] ^= subkey[1]; + subkey[29] ^= subkey[1]; + subkey[31] ^= subkey[1]; + subkey[32] ^= subkey[1]; + } + + /* absorb kw4 to other subkeys */ + kw4 = subkey[ctx->nkeys - 1]; + + if (ctx->nkeys >= 32) + { + subkey[30] ^= kw4; + subkey[28] ^= kw4; + subkey[26] ^= kw4; + kw4 ^= (kw4 & ~subkey[24]) << 32; + dw = (kw4 & subkey[24]) >> 32; kw4 ^= ROL32(1, dw); + } + + subkey[22] ^= kw4; + subkey[20] ^= kw4; + subkey[18] ^= kw4; + kw4 ^= (kw4 & ~subkey[16]) << 32; + dw = (kw4 & subkey[16]) >> 32; kw4 ^= ROL32(1, dw); + + subkey[14] ^= kw4; + subkey[12] ^= kw4; + subkey[10] ^= kw4; + kw4 ^= (kw4 & ~subkey[8]) << 32; + dw = (kw4 & subkey[8]) >> 32; kw4 ^= ROL32(1, dw); + + subkey[6] ^= kw4; + subkey[4] ^= kw4; + subkey[2] ^= kw4; + subkey[0] ^= kw4; + + /* key XOR is end of F-function */ + ctx->keys[0] = subkey[0] ^subkey[2]; + + ctx->keys[2] = subkey[3]; + ctx->keys[3] = subkey[2] ^ subkey[4]; + ctx->keys[4] = subkey[3] ^ subkey[5]; + ctx->keys[5] = subkey[4] ^ subkey[6]; + ctx->keys[6] = subkey[5] ^ subkey[7]; + + tl = (subkey[10] >> 32) ^ (subkey[10] & ~subkey[8]); + dw = tl & (subkey[8] >> 32); + tr = subkey[10] ^ROL32(1, dw); + ctx->keys[7] = subkey[6] ^ ( ((uint64_t) tl << 32) | tr); + + ctx->keys[8] = subkey[8]; + ctx->keys[9] = subkey[9]; + + tl = (subkey[7] >> 32) ^ (subkey[7] & ~subkey[9]); + dw = tl & (subkey[9] >> 32); + tr = subkey[7] ^ ROL32(1, dw); + ctx->keys[10] = subkey[11] ^ ( ((uint64_t) tl << 32) | tr); + + ctx->keys[11] = subkey[10] ^ subkey[12]; + ctx->keys[12] = subkey[11] ^ subkey[13]; + ctx->keys[13] = subkey[12] ^ subkey[14]; + ctx->keys[14] = subkey[13] ^ subkey[15]; + + tl = (subkey[18] >> 32) ^ (subkey[18] & ~subkey[16]); + dw = tl & (subkey[16] >> 32); + tr = subkey[18] ^ ROL32(1, dw); + ctx->keys[15] = subkey[14] ^ ( ((uint64_t) tl << 32) | tr); + + ctx->keys[16] = subkey[16]; + ctx->keys[17] = subkey[17]; + + tl = (subkey[15] >> 32) ^ (subkey[15] & ~subkey[17]); + dw = tl & (subkey[17] >> 32); + tr = subkey[15] ^ ROL32(1, dw); + ctx->keys[18] = subkey[19] ^ ( ((uint64_t) tl << 32) | tr); + + ctx->keys[19] = subkey[18] ^ subkey[20]; + ctx->keys[20] = subkey[19] ^ subkey[21]; + ctx->keys[21] = subkey[20] ^ subkey[22]; + ctx->keys[22] = subkey[21] ^ subkey[23]; + + if (ctx->nkeys < 32) + { + ctx->keys[23] = subkey[22]; + ctx->keys[24] = subkey[24] ^ subkey[23]; + + } + else + { + tl = (subkey[26] >> 32) ^ (subkey[26] & ~subkey[24]); + dw = tl & (subkey[24] >> 32); + tr = subkey[26] ^ ROL32(1, dw); + ctx->keys[23] = subkey[22] ^ ( ((uint64_t) tl << 32) | tr); + + ctx->keys[24] = subkey[24]; + ctx->keys[25] = subkey[25]; + + tl = (subkey[23] >> 32) ^ (subkey[23] & ~subkey[25]); + dw = tl & (subkey[25] >> 32); + tr = subkey[23] ^ ROL32(1, dw); + ctx->keys[26] = subkey[27] ^ ( ((uint64_t) tl << 32) | tr); + + ctx->keys[27] = subkey[26] ^ subkey[28]; + ctx->keys[28] = subkey[27] ^ subkey[29]; + ctx->keys[29] = subkey[28] ^ subkey[30]; + ctx->keys[30] = subkey[29] ^ subkey[31]; + + ctx->keys[31] = subkey[30]; + ctx->keys[32] = subkey[32] ^ subkey[31]; + + } + for (i = 0; i < ctx->nkeys - 2; i += 8) + { + + /* apply the inverse of the last half of F-function */ + CAMELLIA_F_HALF_INV(ctx->keys[i+2]); + CAMELLIA_F_HALF_INV(ctx->keys[i+3]); + CAMELLIA_F_HALF_INV(ctx->keys[i+4]); + CAMELLIA_F_HALF_INV(ctx->keys[i+5]); + CAMELLIA_F_HALF_INV(ctx->keys[i+6]); + CAMELLIA_F_HALF_INV(ctx->keys[i+7]); + } +} diff --git a/camellia-table.c b/camellia-table.c new file mode 100644 index 00000000..9245bc93 --- /dev/null +++ b/camellia-table.c @@ -0,0 +1,310 @@ +/* camellia-table.c + * + * SBOX tables used by both encryption and key setup. + */ + +/* Copyright (C) 2006,2007 + * NTT (Nippon Telegraph and Telephone Corporation). + * + * Copyright (C) 2010 Niels Möller + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * Algorithm Specification + * http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html + */ + +/* Based on camellia.c ver 1.2.0, see + http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-LGPL-1.2.0.tar.gz. + */ + +#if HAVE_CONFIG_H +# include "config.h" +#endif + +#include "camellia-internal.h" + +const struct camellia_table _camellia_table = { + /* sp1110 */ + { + 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, + }, + /* sp0222 */ + { + 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, + }, + /* sp3033 */ + { + 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, + }, + /* sp4404 */ + { + 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, + } +}; diff --git a/camellia.c b/camellia.c deleted file mode 100644 index 44b6d938..00000000 --- a/camellia.c +++ /dev/null @@ -1,959 +0,0 @@ -/* camellia.c - * - * Copyright (C) 2006,2007 - * NTT (Nippon Telegraph and Telephone Corporation). - * - * Copyright (C) 2010 Niels Möller - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* - * Algorithm Specification - * http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html - */ - -/* Based on camellia.c ver 1.2.0, see - http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-LGPL-1.2.0.tar.gz. - */ -#if HAVE_CONFIG_H -# include "config.h" -#endif - -#include <assert.h> - -#include "camellia.h" - -#include "macros.h" - -/* key constants */ - -#define SIGMA1 0xA09E667F3BCC908BULL -#define SIGMA2 0xB67AE8584CAA73B2ULL -#define SIGMA3 0xC6EF372FE94F82BEULL -#define SIGMA4 0x54FF53A5F1D36F1CULL -#define SIGMA5 0x10E527FADE682D1DULL -#define SIGMA6 0xB05688C2B3E6C1FDULL - -/* - * macros - */ - -/* Rotation of 32-bit values. */ -#define ROL32(bits, x) (((x) << (bits)) | ((x) >> (32 - (bits)))) - -/* Destructive rotation of 128 bit values. */ -#define ROL128(bits, xl, xr) do { \ - uint64_t __rol128_t = (xl); \ - (xl) = ((xl) << (bits)) | ((xr) >> (64 - (bits))); \ - (xr) = ((xr) << (bits)) | (__rol128_t >> (64 - (bits))); \ - } while (0) - -#define CAMELLIA_SP1110(INDEX) (camellia_sp1110[(int)(INDEX)]) -#define CAMELLIA_SP0222(INDEX) (camellia_sp0222[(int)(INDEX)]) -#define CAMELLIA_SP3033(INDEX) (camellia_sp3033[(int)(INDEX)]) -#define CAMELLIA_SP4404(INDEX) (camellia_sp4404[(int)(INDEX)]) - -#define CAMELLIA_F(x, k, y) do { \ - uint32_t __yl, __yr; \ - uint64_t __i = (x) ^ (k); \ - __yl \ - = CAMELLIA_SP1110( __i & 0xff) \ - ^ CAMELLIA_SP0222((__i >> 24) & 0xff) \ - ^ CAMELLIA_SP3033((__i >> 16) & 0xff) \ - ^ CAMELLIA_SP4404((__i >> 8) & 0xff); \ - __yr \ - = CAMELLIA_SP1110( __i >> 56) \ - ^ CAMELLIA_SP0222((__i >> 48) & 0xff) \ - ^ CAMELLIA_SP3033((__i >> 40) & 0xff) \ - ^ CAMELLIA_SP4404((__i >> 32) & 0xff); \ - __yl ^= __yr; \ - __yr = ROL32(24, __yr); \ - __yr ^= __yl; \ - (y) = ((uint64_t) __yl << 32) | __yr; \ - } while (0) - -#define CAMELLIA_F_HALF_INV(x) do { \ - uint32_t __t, __w; \ - __t = (x) >> 32; \ - __w = __t ^(x); \ - __w = ROL32(8, __w); \ - (x) = ((uint64_t) __w << 32) | (__t ^ __w); \ - } while (0) - -#define CAMELLIA_FL(x, k) do { \ - uint32_t __xl, __xr, __kl, __kr, __t; \ - __xl = (x) >> 32; \ - __xr = (x) & 0xffffffff; \ - __kl = (k) >> 32; \ - __kr = (k) & 0xffffffff; \ - __t = __xl & __kl; \ - __xr ^= ROL32(1, __t); \ - __xl ^= (__xr | __kr); \ - (x) = ((uint64_t) __xl << 32) | __xr; \ -} while (0) - -#define CAMELLIA_FLINV(x, k) do { \ - uint32_t __xl, __xr, __kl, __kr, __t; \ - __xl = (x) >> 32; \ - __xr = (x) & 0xffffffff; \ - __kl = (k) >> 32; \ - __kr = (k) & 0xffffffff; \ - __xl ^= (__xr | __kr); \ - __t = __xl & __kl; \ - __xr ^= ROL32(1, __t); \ - (x) = ((uint64_t) __xl << 32) | __xr; \ -} while (0) - - -/* - * for speed up - * - */ - -#define CAMELLIA_ROUNDSM(x, k, y) do { \ - uint32_t __il, __ir; \ - __ir \ - = CAMELLIA_SP1110( (x) & 0xff) \ - ^ CAMELLIA_SP0222(((x) >> 24) & 0xff) \ - ^ CAMELLIA_SP3033(((x) >> 16) & 0xff) \ - ^ CAMELLIA_SP4404(((x) >> 8) & 0xff); \ - /* ir == (t6^t7^t8),(t5^t7^t8),(t5^t6^t8),(t5^t6^t7) */ \ - __il \ - = CAMELLIA_SP1110( (x) >> 56) \ - ^ CAMELLIA_SP0222(((x) >> 48) & 0xff) \ - ^ CAMELLIA_SP3033(((x) >> 40) & 0xff) \ - ^ CAMELLIA_SP4404(((x) >> 32) & 0xff); \ - /* il == (t1^t3^t4),(t1^t2^t4),(t1^t2^t3),(t2^t3^t4) */ \ - __il ^= (k) >> 32; \ - __ir ^= (k) & 0xffffffff; \ - __ir ^= __il; \ - /* ir == (t1^t3^t4^t6^t7^t8),(t1^t2^t4^t5^t7^t8), \ - (t1^t2^t3^t5^t6^t8),(t2^t3^t4^t5^t6^t7) \ - == y1,y2,y3,y4 */ \ - __il = ROL32(24, __il); \ - /* il == (t2^t3^t4),(t1^t3^t4),(t1^t2^t4),(t1^t2^t3) */ \ - __il ^= __ir; \ - /* il == (t1^t2^t6^t7^t8),(t2^t3^t5^t7^t8), \ - (t3^t4^t5^t6^t8),(t1^t4^t5^t6^t7) \ - == y5,y6,y7,y8 */ \ - y ^= ((uint64_t) __ir << 32) | __il; \ - } while (0) - -static const uint32_t 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 uint32_t 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 uint32_t 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 uint32_t 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, -}; - - -/** - * Stuff related to the Camellia key schedule - */ - -static void -camellia_setup128(struct camellia_ctx *ctx, const uint64_t *key) -{ - uint64_t k0, k1, w, kw4; - uint32_t dw, tl, tr; - - /* Subkeys according to the spec. */ - uint64_t subkey[26]; - - /** - * k == k0 || k1 (|| is concatination) - */ - k0 = key[0]; - k1 = key[1]; - - /** - * generate KL dependent subkeys - */ - subkey[0] = k0; subkey[1] = k1; - ROL128(15, k0, k1); - subkey[4] = k0; subkey[5] = k1; - ROL128(30, k0, k1); - subkey[10] = k0; subkey[11] = k1; - ROL128(15, k0, k1); - subkey[13] = k1; - ROL128(17, k0, k1); - subkey[16] = k0; subkey[17] = k1; - ROL128(17, k0, k1); - subkey[18] = k0; subkey[19] = k1; - ROL128(17, k0, k1); - subkey[22] = k0; subkey[23] = k1; - - /* generate KA. D1 is k0, d2 is k1. */ - /* FIXME: Make notation match the spec better. */ - /* For the 128-bit case, KR = 0, the construvtion of KA reduces to: - - D1 = KL >> 64; - W = KL & MASK64; - D2 = F(D1, Sigma1); - W = D2 ^ W - D1 = F(W, Sigma2) - D2 = D2 ^ F(D1, Sigma3); - D1 = D1 ^ F(D2, Sigma4); - KA = (D1 << 64) | D2; - */ - k0 = subkey[0]; w = subkey[1]; - CAMELLIA_F(k0, SIGMA1, k1); - w ^= k1; - CAMELLIA_F(w, SIGMA2, k0); - CAMELLIA_F(k0, SIGMA3, w); - k1 ^= w; - CAMELLIA_F(k1, SIGMA4, w); - k0 ^= w; - - /* generate KA dependent subkeys */ - subkey[2] = k0; subkey[3] = k1; - ROL128(15, k0, k1); - subkey[6] = k0; subkey[7] = k1; - ROL128(15, k0, k1); - subkey[8] = k0; subkey[9] = k1; - ROL128(15, k0, k1); - subkey[12] = k0; - ROL128(15, k0, k1); - subkey[14] = k0; subkey[15] = k1; - ROL128(34, k0, k1); - subkey[20] = k0; subkey[21] = k1; - ROL128(17, k0, k1); - subkey[24] = k0; subkey[25] = k1; - - /* absorb kw2 to other subkeys */ - subkey[3] ^= subkey[1]; - subkey[5] ^= subkey[1]; - subkey[7] ^= subkey[1]; - /* FIXME: Is the compiler smart enough to fetch the 32 low bits - and xor the result into the 32 high bits? */ - subkey[1] ^= (subkey[1] & ~subkey[9]) << 32; - dw = (subkey[1] & subkey[9]) >> 32; subkey[1] ^= ROL32(1, dw); - - subkey[11] ^= subkey[1]; - subkey[13] ^= subkey[1]; - subkey[15] ^= subkey[1]; - subkey[1] ^= (subkey[1] & ~subkey[17]) << 32; - dw = (subkey[1] & subkey[17]) >> 32; subkey[1] ^= ROL32(1, dw); - - subkey[19] ^= subkey[1]; - subkey[21] ^= subkey[1]; - subkey[23] ^= subkey[1]; - subkey[24] ^= subkey[1]; - - /* absorb kw4 to other subkeys */ - kw4 = subkey[25]; - - subkey[22] ^= kw4; - subkey[20] ^= kw4; - subkey[18] ^= kw4; - kw4 ^= (kw4 & ~subkey[16]) << 32; - dw = (kw4 & subkey[16]) >> 32; kw4 ^= ROL32(1, dw); - - subkey[14] ^= kw4; - subkey[12] ^= kw4; - subkey[10] ^= kw4; - kw4 ^= (kw4 & ~subkey[8]) << 32; - dw = (kw4 & subkey[8]) >> 32; kw4 ^= ROL32(1, dw); - - subkey[6] ^= kw4; - subkey[4] ^= kw4; - subkey[2] ^= kw4; - subkey[0] ^= kw4; - - /* key XOR is end of F-function */ - ctx->keys[0] = subkey[0] ^subkey[2]; - - ctx->keys[2] = subkey[3]; - ctx->keys[3] = subkey[2] ^ subkey[4]; - ctx->keys[4] = subkey[3] ^ subkey[5]; - ctx->keys[5] = subkey[4] ^ subkey[6]; - ctx->keys[6] = subkey[5] ^ subkey[7]; - - tl = (subkey[10] >> 32) ^ (subkey[10] & ~subkey[8]); - dw = tl & (subkey[8] >> 32); - tr = subkey[10] ^ROL32(1, dw); - ctx->keys[7] = subkey[6] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[8] = subkey[8]; - ctx->keys[9] = subkey[9]; - - tl = (subkey[7] >> 32) ^ (subkey[7] & ~subkey[9]); - dw = tl & (subkey[9] >> 32); - tr = subkey[7] ^ ROL32(1, dw); - ctx->keys[10] = subkey[11] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[11] = subkey[10] ^ subkey[12]; - ctx->keys[12] = subkey[11] ^ subkey[13]; - ctx->keys[13] = subkey[12] ^ subkey[14]; - ctx->keys[14] = subkey[13] ^ subkey[15]; - - tl = (subkey[18] >> 32) ^ (subkey[18] & ~subkey[16]); - dw = tl & (subkey[16] >> 32); - tr = subkey[18] ^ ROL32(1, dw); - ctx->keys[15] = subkey[14] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[16] = subkey[16]; - ctx->keys[17] = subkey[17]; - - tl = (subkey[15] >> 32) ^ (subkey[15] & ~subkey[17]); - dw = tl & (subkey[17] >> 32); - tr = subkey[15] ^ ROL32(1, dw); - ctx->keys[18] = subkey[19] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[19] = subkey[18] ^ subkey[20]; - ctx->keys[20] = subkey[19] ^ subkey[21]; - ctx->keys[21] = subkey[20] ^ subkey[22]; - ctx->keys[22] = subkey[21] ^ subkey[23]; - ctx->keys[23] = subkey[22]; - ctx->keys[24] = subkey[24] ^ subkey[23]; - - /* apply the inverse of the last half of F-function */ - CAMELLIA_F_HALF_INV(ctx->keys[2]); - CAMELLIA_F_HALF_INV(ctx->keys[3]); - CAMELLIA_F_HALF_INV(ctx->keys[4]); - CAMELLIA_F_HALF_INV(ctx->keys[5]); - CAMELLIA_F_HALF_INV(ctx->keys[6]); - CAMELLIA_F_HALF_INV(ctx->keys[7]); - - CAMELLIA_F_HALF_INV(ctx->keys[10]); - CAMELLIA_F_HALF_INV(ctx->keys[11]); - CAMELLIA_F_HALF_INV(ctx->keys[12]); - CAMELLIA_F_HALF_INV(ctx->keys[13]); - CAMELLIA_F_HALF_INV(ctx->keys[14]); - CAMELLIA_F_HALF_INV(ctx->keys[15]); - - CAMELLIA_F_HALF_INV(ctx->keys[18]); - CAMELLIA_F_HALF_INV(ctx->keys[19]); - CAMELLIA_F_HALF_INV(ctx->keys[20]); - CAMELLIA_F_HALF_INV(ctx->keys[21]); - CAMELLIA_F_HALF_INV(ctx->keys[22]); - CAMELLIA_F_HALF_INV(ctx->keys[23]); - - return; -} - -static void -camellia_setup256(struct camellia_ctx *ctx, uint64_t *key) -{ - uint64_t k0, k1, k2, k3; - uint64_t w, kw4; - uint32_t dw, tl, tr; - - /* Subkeys according to the spec. */ - uint64_t subkey[34]; - - /** - * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr) - * (|| is concatination) - */ - - k0 = key[0]; - k1 = key[1]; - k2 = key[2]; - k3 = key[3]; - - /* generate KL dependent subkeys */ - subkey[0] = k0; subkey[1] = k1; - ROL128(45, k0, k1); - subkey[12] = k0; subkey[13] = k1; - ROL128(15, k0, k1); - subkey[16] = k0; subkey[17] = k1; - ROL128(17, k0, k1); - subkey[22] = k0; subkey[23] = k1; - ROL128(34, k0, k1); - subkey[30] = k0; subkey[31] = k1; - - /* generate KR dependent subkeys */ - ROL128(15, k2, k3); - subkey[4] = k2; subkey[5] = k3; - ROL128(15, k2, k3); - subkey[8] = k2; subkey[9] = k3; - ROL128(30, k2, k3); - subkey[18] = k2; subkey[19] = k3; - ROL128(34, k2, k3); - subkey[26] = k2; subkey[27] = k3; - ROL128(34, k2, k3); - - /* generate KA */ - /* The construction of KA is done as - - D1 = (KL ^ KR) >> 64 - D2 = (KL ^ KR) & MASK64 - W = F(D1, SIGMA1) - D2 = D2 ^ W - D1 = F(D2, SIGMA2) ^ (KR >> 64) - D2 = F(D1, SIGMA3) ^ W ^ (KR & MASK64) - D1 = D1 ^ F(W, SIGMA2) - D2 = D2 ^ F(D1, SIGMA3) - D1 = D1 ^ F(D2, SIGMA4) - */ - - k0 = subkey[0] ^ k2; - k1 = subkey[1] ^ k3; - - CAMELLIA_F(k0, SIGMA1, w); - k1 ^= w; - - CAMELLIA_F(k1, SIGMA2, k0); - k0 ^= k2; - - CAMELLIA_F(k0, SIGMA3, k1); - k1 ^= w ^ k3; - - CAMELLIA_F(k1, SIGMA4, w); - k0 ^= w; - - /* generate KB */ - k2 ^= k0; k3 ^= k1; - CAMELLIA_F(k2, SIGMA5, w); - k3 ^= w; - CAMELLIA_F(k3, SIGMA6, w); - k2 ^= w; - - /* generate KA dependent subkeys */ - ROL128(15, k0, k1); - subkey[6] = k0; subkey[7] = k1; - ROL128(30, k0, k1); - subkey[14] = k0; subkey[15] = k1; - ROL128(32, k0, k1); - subkey[24] = k0; subkey[25] = k1; - ROL128(17, k0, k1); - subkey[28] = k0; subkey[29] = k1; - - /* generate KB dependent subkeys */ - subkey[2] = k2; subkey[3] = k3; - ROL128(30, k2, k3); - subkey[10] = k2; subkey[11] = k3; - ROL128(30, k2, k3); - subkey[20] = k2; subkey[21] = k3; - ROL128(51, k2, k3); - subkey[32] = k2; subkey[33] = k3; - - /* absorb kw2 to other subkeys */ - subkey[3] ^= subkey[1]; - subkey[5] ^= subkey[1]; - subkey[7] ^= subkey[1]; - subkey[1] ^= (subkey[1] & ~subkey[9]) << 32; - dw = (subkey[1] & subkey[9]) >> 32; subkey[1] ^= ROL32(1, dw); - - subkey[11] ^= subkey[1]; - subkey[13] ^= subkey[1]; - subkey[15] ^= subkey[1]; - subkey[1] ^= (subkey[1] & ~subkey[17]) << 32; - dw = (subkey[1] & subkey[17]) >> 32; subkey[1] ^= ROL32(1, dw); - - subkey[19] ^= subkey[1]; - subkey[21] ^= subkey[1]; - subkey[23] ^= subkey[1]; - subkey[1] ^= (subkey[1] & ~subkey[25]) << 32; - dw = (subkey[1] & subkey[25]) >> 32; subkey[1] ^= ROL32(1, dw); - - subkey[27] ^= subkey[1]; - subkey[29] ^= subkey[1]; - subkey[31] ^= subkey[1]; - subkey[32] ^= subkey[1]; - - /* absorb kw4 to other subkeys */ - kw4 = subkey[33]; - subkey[30] ^= kw4; - subkey[28] ^= kw4; - subkey[26] ^= kw4; - kw4 ^= (kw4 & ~subkey[24]) << 32; - dw = (kw4 & subkey[24]) >> 32; kw4 ^= ROL32(1, dw); - - subkey[22] ^= kw4; - subkey[20] ^= kw4; - subkey[18] ^= kw4; - kw4 ^= (kw4 & ~subkey[16]) << 32; - dw = (kw4 & subkey[16]) >> 32; kw4 ^= ROL32(1, dw); - - subkey[14] ^= kw4; - subkey[12] ^= kw4; - subkey[10] ^= kw4; - kw4 ^= (kw4 & ~subkey[8]) << 32; - dw = (kw4 & subkey[8]) >> 32; kw4 ^= ROL32(1, dw); - - subkey[6] ^= kw4; - subkey[4] ^= kw4; - subkey[2] ^= kw4; - subkey[0] ^= kw4; - - /* key XOR is end of F-function */ - ctx->keys[0] = subkey[0] ^subkey[2]; - - ctx->keys[2] = subkey[3]; - ctx->keys[3] = subkey[2] ^ subkey[4]; - ctx->keys[4] = subkey[3] ^ subkey[5]; - ctx->keys[5] = subkey[4] ^ subkey[6]; - ctx->keys[6] = subkey[5] ^ subkey[7]; - - tl = (subkey[10] >> 32) ^ (subkey[10] & ~subkey[8]); - dw = tl & (subkey[8] >> 32); - tr = subkey[10] ^ROL32(1, dw); - ctx->keys[7] = subkey[6] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[8] = subkey[8]; - ctx->keys[9] = subkey[9]; - - tl = (subkey[7] >> 32) ^ (subkey[7] & ~subkey[9]); - dw = tl & (subkey[9] >> 32); - tr = subkey[7] ^ ROL32(1, dw); - ctx->keys[10] = subkey[11] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[11] = subkey[10] ^ subkey[12]; - ctx->keys[12] = subkey[11] ^ subkey[13]; - ctx->keys[13] = subkey[12] ^ subkey[14]; - ctx->keys[14] = subkey[13] ^ subkey[15]; - - tl = (subkey[18] >> 32) ^ (subkey[18] & ~subkey[16]); - dw = tl & (subkey[16] >> 32); - tr = subkey[18] ^ ROL32(1, dw); - ctx->keys[15] = subkey[14] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[16] = subkey[16]; - ctx->keys[17] = subkey[17]; - - tl = (subkey[15] >> 32) ^ (subkey[15] & ~subkey[17]); - dw = tl & (subkey[17] >> 32); - tr = subkey[15] ^ ROL32(1, dw); - ctx->keys[18] = subkey[19] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[19] = subkey[18] ^ subkey[20]; - ctx->keys[20] = subkey[19] ^ subkey[21]; - ctx->keys[21] = subkey[20] ^ subkey[22]; - ctx->keys[22] = subkey[21] ^ subkey[23]; - - tl = (subkey[26] >> 32) ^ (subkey[26] & ~subkey[24]); - dw = tl & (subkey[24] >> 32); - tr = subkey[26] ^ ROL32(1, dw); - ctx->keys[23] = subkey[22] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[24] = subkey[24]; - ctx->keys[25] = subkey[25]; - - tl = (subkey[23] >> 32) ^ (subkey[23] & ~subkey[25]); - dw = tl & (subkey[25] >> 32); - tr = subkey[23] ^ ROL32(1, dw); - ctx->keys[26] = subkey[27] ^ ( ((uint64_t) tl << 32) | tr); - - ctx->keys[27] = subkey[26] ^ subkey[28]; - ctx->keys[28] = subkey[27] ^ subkey[29]; - ctx->keys[29] = subkey[28] ^ subkey[30]; - ctx->keys[30] = subkey[29] ^ subkey[31]; - - ctx->keys[31] = subkey[30]; - ctx->keys[32] = subkey[32] ^ subkey[31]; - - /* apply the inverse of the last half of F-function */ - CAMELLIA_F_HALF_INV(ctx->keys[2]); - CAMELLIA_F_HALF_INV(ctx->keys[3]); - CAMELLIA_F_HALF_INV(ctx->keys[4]); - CAMELLIA_F_HALF_INV(ctx->keys[5]); - CAMELLIA_F_HALF_INV(ctx->keys[6]); - CAMELLIA_F_HALF_INV(ctx->keys[7]); - - CAMELLIA_F_HALF_INV(ctx->keys[10]); - CAMELLIA_F_HALF_INV(ctx->keys[11]); - CAMELLIA_F_HALF_INV(ctx->keys[12]); - CAMELLIA_F_HALF_INV(ctx->keys[13]); - CAMELLIA_F_HALF_INV(ctx->keys[14]); - CAMELLIA_F_HALF_INV(ctx->keys[15]); - - CAMELLIA_F_HALF_INV(ctx->keys[18]); - CAMELLIA_F_HALF_INV(ctx->keys[19]); - CAMELLIA_F_HALF_INV(ctx->keys[20]); - CAMELLIA_F_HALF_INV(ctx->keys[21]); - CAMELLIA_F_HALF_INV(ctx->keys[22]); - CAMELLIA_F_HALF_INV(ctx->keys[23]); - - CAMELLIA_F_HALF_INV(ctx->keys[26]); - CAMELLIA_F_HALF_INV(ctx->keys[27]); - CAMELLIA_F_HALF_INV(ctx->keys[28]); - CAMELLIA_F_HALF_INV(ctx->keys[29]); - CAMELLIA_F_HALF_INV(ctx->keys[30]); - CAMELLIA_F_HALF_INV(ctx->keys[31]); - - return; -} - -void -camellia_set_encrypt_key(struct camellia_ctx *ctx, - unsigned length, const uint8_t *key) -{ - uint64_t k[4]; - k[0] = READ_UINT64(key); - k[1] = READ_UINT64(key + 8); - - if (length == 16) - { - ctx->nkeys = 26; - camellia_setup128(ctx, k); - } - else - { - ctx->nkeys = 34; - k[2] = READ_UINT64(key + 16); - - if (length == 24) - k[3] = ~k[2]; - else - { - assert (length == 32); - k[3] = READ_UINT64(key + 24); - } - camellia_setup256(ctx, k); - } -} - -#define SWAP(a, b) \ -do { uint64_t t_swap = (a); (a) = (b); (b) = t_swap; } while(0) - -void -camellia_invert_key(struct camellia_ctx *dst, - const struct camellia_ctx *src) -{ - unsigned nkeys = src->nkeys; - unsigned i; - if (dst == src) - { - SWAP(dst->keys[0], dst->keys[nkeys - 2]); - for (i = 2; i < nkeys - 1 - i; i++) - SWAP(dst->keys[i], dst->keys[nkeys - 1 - i]); - } - else - { - dst->nkeys = nkeys; - dst->keys[0] = src->keys[nkeys - 2]; - for (i = 2; i < nkeys - 2; i++) - dst->keys[i] = src->keys[nkeys - 1 - i]; - dst->keys[nkeys - 2] = src->keys[0]; - } -} - -void -camellia_set_decrypt_key(struct camellia_ctx *ctx, - unsigned length, const uint8_t *key) -{ - camellia_set_encrypt_key(ctx, length, key); - camellia_invert_key(ctx, ctx); -} - -void -camellia_crypt(const struct camellia_ctx *ctx, - unsigned length, uint8_t *dst, - const uint8_t *src) -{ - FOR_BLOCKS(length, dst, src, CAMELLIA_BLOCK_SIZE) - { - uint64_t i0,i1; - unsigned i; - - i0 = READ_UINT64(src); - i1 = READ_UINT64(src + 8); - - /* pre whitening but absorb kw2*/ - i0 ^= ctx->keys[0]; - - /* main iteration */ - - CAMELLIA_ROUNDSM(i0,ctx->keys[2], i1); - CAMELLIA_ROUNDSM(i1,ctx->keys[3], i0); - CAMELLIA_ROUNDSM(i0,ctx->keys[4], i1); - CAMELLIA_ROUNDSM(i1,ctx->keys[5], i0); - CAMELLIA_ROUNDSM(i0,ctx->keys[6], i1); - CAMELLIA_ROUNDSM(i1,ctx->keys[7], i0); - - for (i = 0; i < ctx->nkeys - 10; i+= 8) - { - CAMELLIA_FL(i0, ctx->keys[i+8]); - CAMELLIA_FLINV(i1, ctx->keys[i+9]); - - CAMELLIA_ROUNDSM(i0,ctx->keys[i+10], i1); - CAMELLIA_ROUNDSM(i1,ctx->keys[i+11], i0); - CAMELLIA_ROUNDSM(i0,ctx->keys[i+12], i1); - CAMELLIA_ROUNDSM(i1,ctx->keys[i+13], i0); - CAMELLIA_ROUNDSM(i0,ctx->keys[i+14], i1); - CAMELLIA_ROUNDSM(i1,ctx->keys[i+15], i0); - } - - /* post whitening but kw4 */ - i1 ^= ctx->keys[i+8]; - - WRITE_UINT64(dst , i1); - WRITE_UINT64(dst + 8, i0); - } -} |