diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-10 22:01:27 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-10 22:01:27 -0800 |
commit | 4f58cb90bcb04cfe18f524d1c9a65edef5eb3f51 (patch) | |
tree | 8c686e8b736eed7258921909282c0955543c7d2f /crypto | |
parent | e7691a1ce341c80ed9504244a36b31c025217391 (diff) | |
parent | 08c70fc3a239475122e20b7a21dfae4c264c24f7 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (54 commits)
crypto: gf128mul - remove leftover "(EXPERIMENTAL)" in Kconfig
crypto: serpent-sse2 - remove unneeded LRW/XTS #ifdefs
crypto: serpent-sse2 - select LRW and XTS
crypto: twofish-x86_64-3way - remove unneeded LRW/XTS #ifdefs
crypto: twofish-x86_64-3way - select LRW and XTS
crypto: xts - remove dependency on EXPERIMENTAL
crypto: lrw - remove dependency on EXPERIMENTAL
crypto: picoxcell - fix boolean and / or confusion
crypto: caam - remove DECO access initialization code
crypto: caam - fix polarity of "propagate error" logic
crypto: caam - more desc.h cleanups
crypto: caam - desc.h - convert spaces to tabs
crypto: talitos - convert talitos_error to struct device
crypto: talitos - remove NO_IRQ references
crypto: talitos - fix bad kfree
crypto: convert drivers/crypto/* to use module_platform_driver()
char: hw_random: convert drivers/char/hw_random/* to use module_platform_driver()
crypto: serpent-sse2 - should select CRYPTO_CRYPTD
crypto: serpent - rename serpent.c to serpent_generic.c
crypto: serpent - cleanup checkpatch errors and warnings
...
Diffstat (limited to 'crypto')
-rw-r--r-- | crypto/Kconfig | 52 | ||||
-rw-r--r-- | crypto/Makefile | 2 | ||||
-rw-r--r-- | crypto/algapi.c | 29 | ||||
-rw-r--r-- | crypto/ansi_cprng.c | 8 | ||||
-rw-r--r-- | crypto/crypto_user.c | 2 | ||||
-rw-r--r-- | crypto/lrw.c | 156 | ||||
-rw-r--r-- | crypto/serpent.c | 587 | ||||
-rw-r--r-- | crypto/serpent_generic.c | 684 | ||||
-rw-r--r-- | crypto/tcrypt.c | 310 | ||||
-rw-r--r-- | crypto/tcrypt.h | 2 | ||||
-rw-r--r-- | crypto/testmgr.c | 150 | ||||
-rw-r--r-- | crypto/testmgr.h | 2759 | ||||
-rw-r--r-- | crypto/twofish_common.c | 13 | ||||
-rw-r--r-- | crypto/xts.c | 79 |
14 files changed, 4194 insertions, 639 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index ae9c3ceb286..e6cfe1a2513 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -105,7 +105,7 @@ config CRYPTO_USER depends on NET select CRYPTO_MANAGER help - Userapace configuration for cryptographic instantiations such as + Userspace configuration for cryptographic instantiations such as cbc(aes). config CRYPTO_MANAGER_DISABLE_TESTS @@ -117,7 +117,7 @@ config CRYPTO_MANAGER_DISABLE_TESTS algorithm registration. config CRYPTO_GF128MUL - tristate "GF(2^128) multiplication functions (EXPERIMENTAL)" + tristate "GF(2^128) multiplication functions" help Efficient table driven implementation of multiplications in the field GF(2^128). This is needed by some cypher modes. This @@ -241,8 +241,7 @@ config CRYPTO_ECB the input block by block. config CRYPTO_LRW - tristate "LRW support (EXPERIMENTAL)" - depends on EXPERIMENTAL + tristate "LRW support" select CRYPTO_BLKCIPHER select CRYPTO_MANAGER select CRYPTO_GF128MUL @@ -262,8 +261,7 @@ config CRYPTO_PCBC This block cipher algorithm is required for RxRPC. config CRYPTO_XTS - tristate "XTS support (EXPERIMENTAL)" - depends on EXPERIMENTAL + tristate "XTS support" select CRYPTO_BLKCIPHER select CRYPTO_MANAGER select CRYPTO_GF128MUL @@ -764,6 +762,46 @@ config CRYPTO_SERPENT See also: <http://www.cl.cam.ac.uk/~rja14/serpent.html> +config CRYPTO_SERPENT_SSE2_X86_64 + tristate "Serpent cipher algorithm (x86_64/SSE2)" + depends on X86 && 64BIT + select CRYPTO_ALGAPI + select CRYPTO_CRYPTD + select CRYPTO_SERPENT + select CRYPTO_LRW + select CRYPTO_XTS + help + Serpent cipher algorithm, by Anderson, Biham & Knudsen. + + Keys are allowed to be from 0 to 256 bits in length, in steps + of 8 bits. + + This module provides Serpent cipher algorithm that processes eigth + blocks parallel using SSE2 instruction set. + + See also: + <http://www.cl.cam.ac.uk/~rja14/serpent.html> + +config CRYPTO_SERPENT_SSE2_586 + tristate "Serpent cipher algorithm (i586/SSE2)" + depends on X86 && !64BIT + select CRYPTO_ALGAPI + select CRYPTO_CRYPTD + select CRYPTO_SERPENT + select CRYPTO_LRW + select CRYPTO_XTS + help + Serpent cipher algorithm, by Anderson, Biham & Knudsen. + + Keys are allowed to be from 0 to 256 bits in length, in steps + of 8 bits. + + This module provides Serpent cipher algorithm that processes four + blocks parallel using SSE2 instruction set. + + See also: + <http://www.cl.cam.ac.uk/~rja14/serpent.html> + config CRYPTO_TEA tristate "TEA, XTEA and XETA cipher algorithms" select CRYPTO_ALGAPI @@ -840,6 +878,8 @@ config CRYPTO_TWOFISH_X86_64_3WAY select CRYPTO_ALGAPI select CRYPTO_TWOFISH_COMMON select CRYPTO_TWOFISH_X86_64 + select CRYPTO_LRW + select CRYPTO_XTS help Twofish cipher algorithm (x86_64, 3-way parallel). diff --git a/crypto/Makefile b/crypto/Makefile index 9e6eee2c05d..f638063f4ea 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -65,7 +65,7 @@ obj-$(CONFIG_CRYPTO_BLOWFISH) += blowfish_generic.o obj-$(CONFIG_CRYPTO_BLOWFISH_COMMON) += blowfish_common.o obj-$(CONFIG_CRYPTO_TWOFISH) += twofish_generic.o obj-$(CONFIG_CRYPTO_TWOFISH_COMMON) += twofish_common.o -obj-$(CONFIG_CRYPTO_SERPENT) += serpent.o +obj-$(CONFIG_CRYPTO_SERPENT) += serpent_generic.o obj-$(CONFIG_CRYPTO_AES) += aes_generic.o obj-$(CONFIG_CRYPTO_CAMELLIA) += camellia.o obj-$(CONFIG_CRYPTO_CAST5) += cast5.o diff --git a/crypto/algapi.c b/crypto/algapi.c index 54dd4e33b5d..9d4a9fe913f 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -518,6 +518,35 @@ err: } EXPORT_SYMBOL_GPL(crypto_register_instance); +int crypto_unregister_instance(struct crypto_alg *alg) +{ + int err; + struct crypto_instance *inst = (void *)alg; + struct crypto_template *tmpl = inst->tmpl; + LIST_HEAD(users); + + if (!(alg->cra_flags & CRYPTO_ALG_INSTANCE)) + return -EINVAL; + + BUG_ON(atomic_read(&alg->cra_refcnt) != 1); + + down_write(&crypto_alg_sem); + + hlist_del_init(&inst->list); + err = crypto_remove_alg(alg, &users); + + up_write(&crypto_alg_sem); + + if (err) + return err; + + tmpl->free(inst); + crypto_remove_final(&users); + + return 0; +} +EXPORT_SYMBOL_GPL(crypto_unregister_instance); + int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg, struct crypto_instance *inst, u32 mask) { diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c index ffa0245e2ab..6ddd99e6114 100644 --- a/crypto/ansi_cprng.c +++ b/crypto/ansi_cprng.c @@ -414,10 +414,18 @@ static int fips_cprng_get_random(struct crypto_rng *tfm, u8 *rdata, static int fips_cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen) { u8 rdata[DEFAULT_BLK_SZ]; + u8 *key = seed + DEFAULT_BLK_SZ; int rc; struct prng_context *prng = crypto_rng_ctx(tfm); + if (slen < DEFAULT_PRNG_KSZ + DEFAULT_BLK_SZ) + return -EINVAL; + + /* fips strictly requires seed != key */ + if (!memcmp(seed, key, DEFAULT_PRNG_KSZ)) + return -EINVAL; + rc = cprng_reset(tfm, seed, slen); if (!rc) diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c index 0605a2bbba7..3ba6ef50886 100644 --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -298,7 +298,7 @@ static int crypto_del_alg(struct sk_buff *skb, struct nlmsghdr *nlh, if (atomic_read(&alg->cra_refcnt) != 1) return -EBUSY; - return crypto_unregister_alg(alg); + return crypto_unregister_instance(alg); } static int crypto_add_alg(struct sk_buff *skb, struct nlmsghdr *nlh, diff --git a/crypto/lrw.c b/crypto/lrw.c index 358f80be2bf..ba42acc4deb 100644 --- a/crypto/lrw.c +++ b/crypto/lrw.c @@ -3,7 +3,7 @@ * * Copyright (c) 2006 Rik Snel <rsnel@cube.dyndns.org> * - * Based om ecb.c + * Based on ecb.c * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> * * This program is free software; you can redistribute it and/or modify it @@ -16,6 +16,7 @@ * http://www.mail-archive.com/stds-p1619@listserv.ieee.org/msg00173.html * * The test vectors are included in the testing module tcrypt.[ch] */ + #include <crypto/algapi.h> #include <linux/err.h> #include <linux/init.h> @@ -26,21 +27,11 @@ #include <crypto/b128ops.h> #include <crypto/gf128mul.h> +#include <crypto/lrw.h> struct priv { struct crypto_cipher *child; - /* optimizes multiplying a random (non incrementing, as at the - * start of a new sector) value with key2, we could also have - * used 4k optimization tables or no optimization at all. In the - * latter case we would have to store key2 here */ - struct gf128mul_64k *table; - /* stores: - * key2*{ 0,0,...0,0,0,0,1 }, key2*{ 0,0,...0,0,0,1,1 }, - * key2*{ 0,0,...0,0,1,1,1 }, key2*{ 0,0,...0,1,1,1,1 } - * key2*{ 0,0,...1,1,1,1,1 }, etc - * needed for optimized multiplication of incrementing values - * with key2 */ - be128 mulinc[128]; + struct lrw_table_ctx table; }; static inline void setbit128_bbe(void *b, int bit) @@ -54,28 +45,16 @@ static inline void setbit128_bbe(void *b, int bit) ), b); } -static int setkey(struct crypto_tfm *parent, const u8 *key, - unsigned int keylen) +int lrw_init_table(struct lrw_table_ctx *ctx, const u8 *tweak) { - struct priv *ctx = crypto_tfm_ctx(parent); - struct crypto_cipher *child = ctx->child; - int err, i; be128 tmp = { 0 }; - int bsize = crypto_cipher_blocksize(child); - - crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK); - crypto_cipher_set_flags(child, crypto_tfm_get_flags(parent) & - CRYPTO_TFM_REQ_MASK); - if ((err = crypto_cipher_setkey(child, key, keylen - bsize))) - return err; - crypto_tfm_set_flags(parent, crypto_cipher_get_flags(child) & - CRYPTO_TFM_RES_MASK); + int i; if (ctx->table) gf128mul_free_64k(ctx->table); /* initialize multiplication table for Key2 */ - ctx->table = gf128mul_init_64k_bbe((be128 *)(key + keylen - bsize)); + ctx->table = gf128mul_init_64k_bbe((be128 *)tweak); if (!ctx->table) return -ENOMEM; @@ -88,6 +67,34 @@ static int setkey(struct crypto_tfm *parent, const u8 *key, return 0; } +EXPORT_SYMBOL_GPL(lrw_init_table); + +void lrw_free_table(struct lrw_table_ctx *ctx) +{ + if (ctx->table) + gf128mul_free_64k(ctx->table); +} +EXPORT_SYMBOL_GPL(lrw_free_table); + +static int setkey(struct crypto_tfm *parent, const u8 *key, + unsigned int keylen) +{ + struct priv *ctx = crypto_tfm_ctx(parent); + struct crypto_cipher *child = ctx->child; + int err, bsize = LRW_BLOCK_SIZE; + const u8 *tweak = key + keylen - bsize; + + crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK); + crypto_cipher_set_flags(child, crypto_tfm_get_flags(parent) & + CRYPTO_TFM_REQ_MASK); + err = crypto_cipher_setkey(child, key, keylen - bsize); + if (err) + return err; + crypto_tfm_set_flags(parent, crypto_cipher_get_flags(child) & + CRYPTO_TFM_RES_MASK); + + return lrw_init_table(&ctx->table, tweak); +} struct sinfo { be128 t; @@ -134,7 +141,7 @@ static int crypt(struct blkcipher_desc *d, { int err; unsigned int avail; - const int bs = crypto_cipher_blocksize(ctx->child); + const int bs = LRW_BLOCK_SIZE; struct sinfo s = { .tfm = crypto_cipher_tfm(ctx->child), .fn = fn @@ -155,7 +162,7 @@ static int crypt(struct blkcipher_desc *d, s.t = *iv; /* T <- I*Key2 */ - gf128mul_64k_bbe(&s.t, ctx->table); + gf128mul_64k_bbe(&s.t, ctx->table.table); goto first; @@ -163,7 +170,8 @@ static int crypt(struct blkcipher_desc *d, do { /* T <- I*Key2, using the optimization * discussed in the specification */ - be128_xor(&s.t, &s.t, &ctx->mulinc[get_index128(iv)]); + be128_xor(&s.t, &s.t, + &ctx->table.mulinc[get_index128(iv)]); inc(iv); first: @@ -206,6 +214,85 @@ static int decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, crypto_cipher_alg(ctx->child)->cia_decrypt); } +int lrw_crypt(struct blkcipher_desc *desc, struct scatterlist *sdst, + struct scatterlist *ssrc, unsigned int nbytes, + struct lrw_crypt_req *req) +{ + const unsigned int bsize = LRW_BLOCK_SIZE; + const unsigned int max_blks = req->tbuflen / bsize; + struct lrw_table_ctx *ctx = req->table_ctx; + struct blkcipher_walk walk; + unsigned int nblocks; + be128 *iv, *src, *dst, *t; + be128 *t_buf = req->tbuf; + int err, i; + + BUG_ON(max_blks < 1); + + blkcipher_walk_init(&walk, sdst, ssrc, nbytes); + + err = blkcipher_walk_virt(desc, &walk); + nbytes = walk.nbytes; + if (!nbytes) + return err; + + nblocks = min(walk.nbytes / bsize, max_blks); + src = (be128 *)walk.src.virt.addr; + dst = (be128 *)walk.dst.virt.addr; + + /* calculate first value of T */ + iv = (be128 *)walk.iv; + t_buf[0] = *iv; + + /* T <- I*Key2 */ + gf128mul_64k_bbe(&t_buf[0], ctx->table); + + i = 0; + goto first; + + for (;;) { + do { + for (i = 0; i < nblocks; i++) { + /* T <- I*Key2, using the optimization + * discussed in the specification */ + be128_xor(&t_buf[i], t, + &ctx->mulinc[get_index128(iv)]); + inc(iv); +first: + t = &t_buf[i]; + + /* PP <- T xor P */ + be128_xor(dst + i, t, src + i); + } + + /* CC <- E(Key2,PP) */ + req->crypt_fn(req->crypt_ctx, (u8 *)dst, + nblocks * bsize); + + /* C <- T xor CC */ + for (i = 0; i < nblocks; i++) + be128_xor(dst + i, dst + i, &t_buf[i]); + + src += nblocks; + dst += nblocks; + nbytes -= nblocks * bsize; + nblocks = min(nbytes / bsize, max_blks); + } while (nblocks > 0); + + err = blkcipher_walk_done(desc, &walk, nbytes); + nbytes = walk.nbytes; + if (!nbytes) + break; + + nblocks = min(nbytes / bsize, max_blks); + src = (be128 *)walk.src.virt.addr; + dst = (be128 *)walk.dst.virt.addr; + } + + return err; +} +EXPORT_SYMBOL_GPL(lrw_crypt); + static int init_tfm(struct crypto_tfm *tfm) { struct crypto_cipher *cipher; @@ -218,8 +305,9 @@ static int init_tfm(struct crypto_tfm *tfm) if (IS_ERR(cipher)) return PTR_ERR(cipher); - if (crypto_cipher_blocksize(cipher) != 16) { + if (crypto_cipher_blocksize(cipher) != LRW_BLOCK_SIZE) { *flags |= CRYPTO_TFM_RES_BAD_BLOCK_LEN; + crypto_free_cipher(cipher); return -EINVAL; } @@ -230,8 +318,8 @@ static int init_tfm(struct crypto_tfm *tfm) static void exit_tfm(struct crypto_tfm *tfm) { struct priv *ctx = crypto_tfm_ctx(tfm); - if (ctx->table) - gf128mul_free_64k(ctx->table); + + lrw_free_table(&ctx->table); crypto_free_cipher(ctx->child); } diff --git a/crypto/serpent.c b/crypto/serpent.c deleted file mode 100644 index b651a55fa56..00000000000 --- a/crypto/serpent.c +++ /dev/null @@ -1,587 +0,0 @@ -/* - * Cryptographic API. - * - * Serpent Cipher Algorithm. - * - * Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no> - * 2003 Herbert Valerio Riedel <hvr@gnu.org> - * - * Added tnepres support: Ruben Jesus Garcia Hernandez <ruben@ugr.es>, 18.10.2004 - * Based on code by hvr - * - * 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. - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <asm/byteorder.h> -#include <linux/crypto.h> -#include <linux/types.h> - -/* Key is padded to the maximum of 256 bits before round key generation. - * Any key length <= 256 bits (32 bytes) is allowed by the algorithm. - */ - -#define SERPENT_MIN_KEY_SIZE 0 -#define SERPENT_MAX_KEY_SIZE 32 -#define SERPENT_EXPKEY_WORDS 132 -#define SERPENT_BLOCK_SIZE 16 - -#define PHI 0x9e3779b9UL - -#define keyiter(a,b,c,d,i,j) \ - b ^= d; b ^= c; b ^= a; b ^= PHI ^ i; b = rol32(b,11); k[j] = b; - -#define loadkeys(x0,x1,x2,x3,i) \ - x0=k[i]; x1=k[i+1]; x2=k[i+2]; x3=k[i+3]; - -#define storekeys(x0,x1,x2,x3,i) \ - k[i]=x0; k[i+1]=x1; k[i+2]=x2; k[i+3]=x3; - -#define K(x0,x1,x2,x3,i) \ - x3 ^= k[4*(i)+3]; x2 ^= k[4*(i)+2]; \ - x1 ^= k[4*(i)+1]; x0 ^= k[4*(i)+0]; - -#define LK(x0,x1,x2,x3,x4,i) \ - x0=rol32(x0,13);\ - x2=rol32(x2,3); x1 ^= x0; x4 = x0 << 3; \ - x3 ^= x2; x1 ^= x2; \ - x1=rol32(x1,1); x3 ^= x4; \ - x3=rol32(x3,7); x4 = x1; \ - x0 ^= x1; x4 <<= 7; x2 ^= x3; \ - x0 ^= x3; x2 ^= x4; x3 ^= k[4*i+3]; \ - x1 ^= k[4*i+1]; x0=rol32(x0,5); x2=rol32(x2,22);\ - x0 ^= k[4*i+0]; x2 ^= k[4*i+2]; - -#define KL(x0,x1,x2,x3,x4,i) \ - x0 ^= k[4*i+0]; x1 ^= k[4*i+1]; x2 ^= k[4*i+2]; \ - x3 ^= k[4*i+3]; x0=ror32(x0,5); x2=ror32(x2,22);\ - x4 = x1; x2 ^= x3; x0 ^= x3; \ - x4 <<= 7; x0 ^= x1; x1=ror32(x1,1); \ - x2 ^= x4; x3=ror32(x3,7); x4 = x0 << 3; \ - x1 ^= x0; x3 ^= x4; x0=ror32(x0,13);\ - x1 ^= x2; x3 ^= x2; x2=ror32(x2,3); - -#define S0(x0,x1,x2,x3,x4) \ - x4 = x3; \ - x3 |= x0; x0 ^= x4; x4 ^= x2; \ - x4 =~ x4; x3 ^= x1; x1 &= x0; \ - x1 ^= x4; x2 ^= x0; x0 ^= x3; \ - x4 |= x0; x0 ^= x2; x2 &= x1; \ - x3 ^= x2; x1 =~ x1; x2 ^= x4; \ - x1 ^= x2; - -#define S1(x0,x1,x2,x3,x4) \ - x4 = x1; \ - x1 ^= x0; x0 ^= x3; x3 =~ x3; \ - x4 &= x1; x0 |= x1; x3 ^= x2; \ - x0 ^= x3; x1 ^= x3; x3 ^= x4; \ - x1 |= x4; x4 ^= x2; x2 &= x0; \ - x2 ^= x1; x1 |= x0; x0 =~ x0; \ - x0 ^= x2; x4 ^= x1; - -#define S2(x0,x1,x2,x3,x4) \ - x3 =~ x3; \ - x1 ^= x0; x4 = x0; x0 &= x2; \ - x0 ^= x3; x3 |= x4; x2 ^= x1; \ - x3 ^= x1; x1 &= x0; x0 ^= x2; \ - x2 &= x3; x3 |= x1; x0 =~ x0; \ - x3 ^= x0; x4 ^= x0; x0 ^= x2; \ - x1 |= x2; - -#define S3(x0,x1,x2,x3,x4) \ - x4 = x1; \ - x1 ^= x3; x3 |= x0; x4 &= x0; \ - x0 ^= x2; x2 ^= x1; x1 &= x3; \ - x2 ^= x3; x0 |= x4; x4 ^= x3; \ - x1 ^= x0; x0 &= x3; x3 &= x4; \ - x3 ^= x2; x4 |= x1; x2 &= x1; \ - x4 ^= x3; x0 ^= x3; x3 ^= x2; - -#define S4(x0,x1,x2,x3,x4) \ - x4 = x3; \ - x3 &= x0; x0 ^= x4; \ - x3 ^= x2; x2 |= x4; x0 ^= x1; \ - x4 ^= x3; x2 |= x0; \ - x2 ^= x1; x1 &= x0; \ - x1 ^= x4; x4 &= x2; x2 ^= x3; \ - x4 ^= x0; x3 |= x1; x1 =~ x1; \ - x3 ^= x0; - -#define S5(x0,x1,x2,x3,x4) \ - x4 = x1; x1 |= x0; \ - x2 ^= x1; x3 =~ x3; x4 ^= x0; \ - x0 ^= x2; x1 &= x4; x4 |= x3; \ - x4 ^= x0; x0 &= x3; x1 ^= x3; \ - x3 ^= x2; x0 ^= x1; x2 &= x4; \ - x1 ^= x2; x2 &= x0; \ - x3 ^= x2; - -#define S6(x0,x1,x2,x3,x4) \ - x4 = x1; \ - x3 ^= x0; x1 ^= x2; x2 ^= x0; \ - x0 &= x3; x1 |= x3; x4 =~ x4; \ - x0 ^= x1; x1 ^= x2; \ - x3 ^= x4; x4 ^= x0; x2 &= x0; \ - x4 ^= x1; x2 ^= x3; x3 &= x1; \ - x3 ^= x0; x1 ^= x2; - -#define S7(x0,x1,x2,x3,x4) \ - x1 =~ x1; \ - x4 = x1; x0 =~ x0; x1 &= x2; \ - x1 ^= x3; x3 |= x4; x4 ^= x2; \ - x2 ^= x3; x3 ^= x0; x0 |= x1; \ - x2 &= x0; x0 ^= x4; x4 ^= x3; \ - x3 &= x0; x4 ^= x1; \ - x2 ^= x4; x3 ^= x1; x4 |= x0; \ - x4 ^= x1; - -#define SI0(x0,x1,x2,x3,x4) \ - x4 = x3; x1 ^= x0; \ - x3 |= x1; x4 ^= x1; x0 =~ x0; \ - x2 ^= x3; x3 ^= x0; x0 &= x1; \ - x0 ^= x2; x2 &= x3; x3 ^= x4; \ - x2 ^= x3; x1 ^= x3; x3 &= x0; \ - x1 ^= x0; x0 ^= x2; x4 ^= x3; - -#define SI1(x0,x1,x2,x3,x4) \ - x1 ^= x3; x4 = x0; \ - x0 ^= x2; x2 =~ x2; x4 |= x1; \ - x4 ^= x3; x3 &= x1; x1 ^= x2; \ - x2 &= x4; x4 ^= x1; x1 |= x3; \ - x3 ^= x0; x2 ^= x0; x0 |= x4; \ - x2 ^= x4; x1 ^= x0; \ - x4 ^= x1; - -#define SI2(x0,x1,x2,x3,x4) \ - x2 ^= x1; x4 = x3; x3 =~ x3; \ - x3 |= x2; x2 ^= x4; x4 ^= x0; \ - x3 ^= x1; x1 |= x2; x2 ^= x0; \ - x1 ^= x4; x4 |= x3; x2 ^= x3; \ - x4 ^= x2; x2 &= x1; \ - x2 ^= x3; x3 ^= x4; x4 ^= x0; - -#define SI3(x0,x1,x2,x3,x4) \ - x2 ^= x1; \ - x4 = x1; x1 &= x2; \ - x1 ^= x0; x0 |= x4; x4 ^= x3; \ - x0 ^= x3; x3 |= x1; x1 ^= x2; \ - x1 ^= x3; x0 ^= x2; x2 ^= x3; \ - x3 &= x1; x1 ^= x0; x0 &= x2; \ - x4 ^= x3; x3 ^= x0; x0 ^= x1; - -#define SI4(x0,x1,x2,x3,x4) \ - x2 ^= x3; x4 = x0; x0 &= x1; \ - x0 ^= x2; x2 |= x3; x4 =~ x4; \ - x1 ^= x0; x0 ^= x2; x2 &= x4; \ - x2 ^= x0; x0 |= x4; \ - x0 ^= x3; x3 &= x2; \ - x4 ^= x3; x3 ^= x1; x1 &= x0; \ - x4 ^= x1; x0 ^= x3; - -#define SI5(x0,x1,x2,x3,x4) \ - x4 = x1; x1 |= x2; \ - x2 ^= x4; x1 ^= x3; x3 &= x4; \ - x2 ^= x3; x3 |= x0; x0 =~ x0; \ - x3 ^= x2; x2 |= x0; x4 ^= x1; \ - x2 ^= x4; x4 &= x0; x0 ^= x1; \ - x1 ^= x3; x0 &= x2; x2 ^= x3; \ - x0 ^= x2; x2 ^= x4; x4 ^= x3; - -#define SI6(x0,x1,x2,x3,x4) \ - x0 ^= x2; \ - x4 = x0; x0 &= x3; x2 ^= x3; \ - x0 ^= x2; x3 ^= x1; x2 |= x4; \ - x2 ^= x3; x3 &= x0; x0 =~ x0; \ - x3 ^= x1; x1 &= x2; x4 ^= x0; \ - x3 ^= x4; x4 ^= x2; x0 ^= x1; \ - x2 ^= x0; - -#define SI7(x0,x1,x2,x3,x4) \ - x4 = x3; x3 &= x0; x0 ^= x2; \ - x2 |= x4; x4 ^= x1; x0 =~ x0; \ - x1 |= x3; x4 ^= x0; x0 &= x2; \ - x0 ^= x1; x1 &= x2; x3 ^= x2; \ - x4 ^= x3; x2 &= x3; x3 |= x0; \ - x1 ^= x4; x3 ^= x4; x4 &= x0; \ - x4 ^= x2; - -struct serpent_ctx { - u32 expkey[SERPENT_EXPKEY_WORDS]; -}; - - -static int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen) -{ - struct serpent_ctx *ctx = crypto_tfm_ctx(tfm); - u32 *k = ctx->expkey; - u8 *k8 = (u8 *)k; - u32 r0,r1,r2,r3,r4; - int i; - - /* Copy key, add padding */ - - for (i = 0; i < keylen; ++i) - k8[i] = key[i]; - if (i < SERPENT_MAX_KEY_SIZE) - k8[i++] = 1; - while (i < SERPENT_MAX_KEY_SIZE) - k8[i++] = 0; - - /* Expand key using polynomial */ - - r0 = le32_to_cpu(k[3]); - r1 = le32_to_cpu(k[4]); - r2 = le32_to_cpu(k[5]); - r3 = le32_to_cpu(k[6]); - r4 = le32_to_cpu(k[7]); - - keyiter(le32_to_cpu(k[0]),r0,r4,r2,0,0); - keyiter(le32_to_cpu(k[1]),r1,r0,r3,1,1); - keyiter(le32_to_cpu(k[2]),r2,r1,r4,2,2); - keyiter(le32_to_cpu(k[3]),r3,r2,r0,3,3); - keyiter(le32_to_cpu(k[4]),r4,r3,r1,4,4); - keyiter(le32_to_cpu(k[5]),r0,r4,r2,5,5); - keyiter(le32_to_cpu(k[6]),r1,r0,r3,6,6); - keyiter(le32_to_cpu(k[7]),r2,r1,r4,7,7); - - keyiter(k[ 0],r3,r2,r0, 8, 8); keyiter(k[ 1],r4,r3,r1, 9, 9); - keyiter(k[ 2],r0,r4,r2, 10, 10); keyiter(k[ 3],r1,r0,r3, 11, 11); - keyiter(k[ 4],r2,r1,r4, 12, 12); keyiter(k[ 5],r3,r2,r0, 13, 13); - keyiter(k[ 6],r4,r3,r1, 14, 14); keyiter(k[ 7],r0,r4,r2, 15, 15); - keyiter(k[ 8],r1,r0,r3, 16, 16); keyiter(k[ 9],r2,r1,r4, 17, 17); - keyiter(k[ 10],r3,r2,r0, 18, 18); keyiter(k[ 11],r4,r3,r1, 19, 19); - keyiter(k[ 12],r0,r4,r2, 20, 20); keyiter(k[ 13],r1,r0,r3, 21, 21); - keyiter(k[ 14],r2,r1,r4, 22, 22); keyiter(k[ 15],r3,r2,r0, 23, 23); - keyiter(k[ 16],r4,r3,r1, 24, 24); keyiter(k[ 17],r0,r4,r2, 25, 25); - keyiter(k[ 18],r1,r0,r3, 26, 26); keyiter(k[ 19],r2,r1,r4, 27, 27); - keyiter(k[ 20],r3,r2,r0, 28, 28); keyiter(k[ 21],r4,r3,r1, 29, 29); - keyiter(k[ 22],r0,r4,r2, 30, 30); keyiter(k[ 23],r1,r0,r3, 31, 31); - - k += 50; - - keyiter(k[-26],r2,r1,r4, 32,-18); keyiter(k[-25],r3,r2,r0, 33,-17); - keyiter(k[-24],r4,r3,r1, 34,-16); keyiter(k[-23],r0,r4,r2, 35,-15); - keyiter(k[-22],r1,r0,r3, 36,-14); keyiter(k[-21],r2,r1,r4, 37,-13); - keyiter(k[-20],r3,r2,r0, 38,-12); keyiter(k[-19],r4,r3,r1, 39,-11); - keyiter(k[-18],r0,r4,r2, 40,-10); keyiter(k[-17],r1,r0,r3, 41, -9); - keyiter(k[-16],r2,r1,r4, 42, -8); keyiter(k[-15],r3,r2,r0, 43, -7); - keyiter(k[-14],r4,r3,r1, 44, -6); keyiter(k[-13],r0,r4,r2, 45, -5); - keyiter(k[-12],r1,r0,r3, 46, -4); keyiter(k[-11],r2,r1,r4, 47, -3); - keyiter(k[-10],r3,r2,r0, 48, -2); keyiter(k[ -9],r4,r3,r1, 49, -1); - keyiter(k[ -8],r0,r4,r2, 50, 0); keyiter(k[ -7],r1,r0,r3, 51, 1); - keyiter(k[ -6],r2,r1,r4, 52, 2); keyiter(k[ -5],r3,r2,r0, 53, 3); - keyiter(k[ -4],r4,r3,r1, 54, 4); keyiter(k[ -3],r0,r4,r2, 55, 5); - keyiter(k[ -2],r1,r0,r3, 56, 6); keyiter(k[ -1],r2,r1,r4, 57, 7); - keyiter(k[ 0],r3,r2,r0, 58, 8); keyiter(k[ 1],r4,r3,r1, 59, 9); - keyiter(k[ 2],r0,r4,r2, 60, 10); keyiter(k[ 3],r1,r0,r3, 61, 11); - keyiter(k[ 4],r2,r1,r4, 62, 12); keyiter(k[ 5],r3,r2,r0, 63, 13); - keyiter(k[ 6],r4,r3,r1, 64, 14); keyiter(k[ 7],r0,r4,r2, 65, 15); - keyiter(k[ 8],r1,r0,r3, 66, 16); keyiter(k[ 9],r2,r1,r4, 67, 17); - keyiter(k[ 10],r3,r2,r0, 68, 18); keyiter(k[ 11],r4,r3,r1, 69, 19); - keyiter(k[ 12],r0,r4,r2, 70, 20); keyiter(k[ 13],r1,r0,r3, 71, 21); - keyiter(k[ 14],r2,r1,r4, 72, 22); keyiter(k[ 15],r3,r2,r0, 73, 23); - keyiter(k[ 16],r4,r3,r1, 74, 24); keyiter(k[ 17],r0,r4,r2, 75, 25); - keyiter(k[ 18],r1,r0,r3, 76, 26); keyiter(k[ 19],r2,r1,r4, 77, 27); - keyiter(k[ 20],r3,r2,r0, 78, 28); keyiter(k[ 21],r4,r3,r1, 79, 29); - keyiter(k[ 22],r0,r4,r2, 80, 30); keyiter(k[ 23],r1,r0,r3, 81, 31); - - k += 50; - - keyiter(k[-26],r2,r1,r4, 82,-18); keyiter(k[-25],r3,r2,r0, 83,-17); - keyiter(k[-24],r4,r3,r1, 84,-16); keyiter(k[-23],r0,r4,r2, 85,-15); - keyiter(k[-22],r1,r0,r3, 86,-14); keyiter(k[-21],r2,r1,r4, 87,-13); - keyiter(k[-20],r3,r2,r0, 88,-12); keyiter(k[-19],r4,r3,r1, 89,-11); - keyiter(k[-18],r0,r4,r2, 90,-10); keyiter(k[-17],r1,r0,r3, 91, -9); - keyiter(k[-16],r2,r1,r4, 92, -8); keyiter(k[-15],r3,r2,r0, 93, -7); - keyiter(k[-14],r4,r3,r1, 94, -6); keyiter(k[-13],r0,r4,r2, 95, -5); - keyiter(k[-12],r1,r0,r3, 96, -4); keyiter(k[-11],r2,r1,r4, 97, -3); - keyiter(k[-10],r3,r2,r0, 98, -2); keyiter(k[ -9],r4,r3,r1, 99, -1); - keyiter(k[ -8],r0,r4,r2,100, 0); keyiter(k[ -7],r1,r0,r3,101, 1); - keyiter(k[ -6],r2,r1,r4,102, 2); keyiter(k[ -5],r3,r2,r0,103, 3); - keyiter(k[ -4],r4,r3,r1,104, 4); keyiter(k[ -3],r0,r4,r2,105, 5); - keyiter(k[ -2],r1,r0,r3,106, 6); keyiter(k[ -1],r2,r1,r4,107, 7); - keyiter(k[ 0],r3,r2,r0,108, 8); keyiter(k[ 1],r4,r3,r1,109, 9); - keyiter(k[ 2],r0,r4,r2,110, 10); keyiter(k[ 3],r1,r0,r3,111, 11); - keyiter(k[ 4],r2,r1,r4,112, 12); keyiter(k[ 5],r3,r2,r0,113, 13); - keyiter(k[ 6],r4,r3,r1,114, 14); keyiter(k[ 7],r0,r4,r2,115, 15); - keyiter(k[ 8],r1,r0,r3,116, 16); keyiter(k[ 9],r2,r1,r4,117, 17); - keyiter(k[ 10],r3,r2,r0,118, 18); keyiter(k[ 11],r4,r3,r1,119, 19); - keyiter(k[ 12],r0,r4,r2,120, 20); keyiter(k[ 13],r1,r0,r3,121, 21); - keyiter(k[ 14],r2,r1,r4,122, 22); keyiter(k[ 15],r3,r2,r0,123, 23); - keyiter(k[ 16],r4,r3,r1,124, 24); keyiter(k[ 17],r0,r4,r2,125, 25); - keyiter(k[ 18],r1,r0,r3,126, 26); keyiter(k[ 19],r2,r1,r4,127, 27); - keyiter(k[ 20],r3,r2,r0,128, 28); keyiter(k[ 21],r4,r3,r1,129, 29); - keyiter(k[ 22],r0,r4,r2,130, 30); keyiter(k[ 23],r1,r0,r3,131, 31); - - /* Apply S-boxes */ - - S3(r3,r4,r0,r1,r2); storekeys(r1,r2,r4,r3, 28); loadkeys(r1,r2,r4,r3, 24); - S4(r1,r2,r4,r3,r0); storekeys(r2,r4,r3,r0, 24); loadkeys(r2,r4,r3,r0, 20); - S5(r2,r4,r3,r0,r1); storekeys(r1,r2,r4,r0, 20); loadkeys(r1,r2,r4,r0, 16); - S6(r1,r2,r4,r0,r3); storekeys(r4,r3,r2,r0, 16); loadkeys(r4,r3,r2,r0, 12); - S7(r4,r3,r2,r0,r1); storekeys(r1,r2,r0,r4, 12); loadkeys(r1,r2,r0,r4, 8); - S0(r1,r2,r0,r4,r3); storekeys(r0,r2,r4,r1, 8); loadkeys(r0,r2,r4,r1, 4); - S1(r0,r2,r4,r1,r3); storekeys(r3,r4,r1,r0, 4); loadkeys(r3,r4,r1,r0, 0); - S2(r3,r4,r1,r0,r2); storekeys(r2,r4,r3,r0, 0); loadkeys(r2,r4,r3,r0, -4); - S3(r2,r4,r3,r0,r1); storekeys(r0,r1,r4,r2, -4); loadkeys(r0,r1,r4,r2, -8); - S4(r0,r1,r4,r2,r3); storekeys(r1,r4,r2,r3, -8); loadkeys(r1,r4,r2,r3,-12); - S5(r1,r4,r2,r3,r0); storekeys(r0,r1,r4,r3,-12); loadkeys(r0,r1,r4,r3,-16); - S6(r0,r1,r4,r3,r2); storekeys(r4,r2,r1,r3,-16); loadkeys(r4,r2,r1,r3,-20); - S7(r4,r2,r1,r3,r0); storekeys(r0,r1,r3,r4,-20); loadkeys(r0,r1,r3,r4,-24); - S0(r0,r1,r3,r4,r2); storekeys(r3,r1,r4,r0,-24); loadkeys(r3,r1,r4,r0,-28); - k -= 50; - S1(r3,r1,r4,r0,r2); storekeys(r2,r4,r0,r3, 22); loadkeys(r2,r4,r0,r3, 18); - S2(r2,r4,r0,r3,r1); storekeys(r1,r4,r2,r3, 18); loadkeys(r1,r4,r2,r3, 14); - S3(r1,r4,r2,r3,r0); storekeys(r3,r0,r4,r1, 14); loadkeys(r3,r0,r4,r1, 10); - S4(r3,r0,r4,r1,r2); storekeys(r0,r4,r1,r2, 10); loadkeys(r0,r4,r1,r2, 6); - S5(r0,r4,r1,r2,r3); storekeys(r3,r0,r4,r2, 6); loadkeys(r3,r0,r4,r2, 2); - S6(r3,r0,r4,r2,r1); storekeys(r4,r1,r0,r2, 2); loadkeys(r4,r1,r0,r2, -2); - S7(r4,r1,r0,r2,r3); storekeys(r3,r0,r2,r4, -2); loadkeys(r3,r0,r2,r4, -6); - S0(r3,r0,r2,r4,r1); storekeys(r2,r0,r4,r3, -6); loadkeys(r2,r0,r4,r3,-10); - S1(r2,r0,r4,r3,r1); storekeys(r1,r4,r3,r2,-10); loadkeys(r1,r4,r3,r2,-14); - S2(r1,r4,r3,r2,r0); storekeys(r0,r4,r1,r2,-14); loadkeys(r0,r4,r1,r2,-18); - S3(r0,r4,r1,r2,r3); storekeys(r2,r3,r4,r0,-18); loadkeys(r2,r3,r4,r0,-22); - k -= 50; - S4(r2,r3,r4,r0,r1); storekeys(r3,r4,r0,r1, 28); loadkeys(r3,r4,r0,r1, 24); - S5(r3,r4,r0,r1,r2); storekeys(r2,r3,r4,r1, 24); loadkeys(r2,r3,r4,r1, 20); - S6(r2,r3,r4,r1,r0); storekeys(r4,r0,r3,r1, 20); loadkeys(r4,r0,r3,r1, 16); - S7(r4,r0,r3,r1,r2); storekeys(r2,r3,r1,r4, 16); loadkeys(r2,r3,r1,r4, 12); - S0(r2,r3,r1,r4,r0); storekeys(r1,r3,r4,r2, 12); loadkeys(r1,r3,r4,r2, 8); - S1(r1,r3,r4,r2,r0); storekeys(r0,r4,r2,r1, 8); loadkeys(r0,r4,r2,r1, 4); - S2(r0,r4,r2,r1,r3); storekeys(r3,r4,r0,r1, 4); loadkeys(r3,r4,r0,r1, 0); - S3(r3,r4,r0,r1,r2); storekeys(r1,r2,r4,r3, 0); - - return 0; -} - -static void serpent_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -{ - struct serpent_ctx *ctx = crypto_tfm_ctx(tfm); - const u32 - *k = ctx->expkey; - const __le32 *s = (const __le32 *)src; - __le32 *d = (__le32 *)dst; - u32 r0, r1, r2, r3, r4; - -/* - * Note: The conversions between u8* and u32* might cause trouble - * on architectures with stricter alignment rules than x86 - */ - - r0 = le32_to_cpu(s[0]); - r1 = le32_to_cpu(s[1]); - r2 = le32_to_cpu(s[2]); - r3 = le32_to_cpu(s[3]); - - K(r0,r1,r2,r3,0); - S0(r0,r1,r2,r3,r4); LK(r2,r1,r3,r0,r4,1); - S1(r2,r1,r3,r0,r4); LK(r4,r3,r0,r2,r1,2); - S2(r4,r3,r0,r2,r1); LK(r1,r3,r4,r2,r0,3); - S3(r1,r3,r4,r2,r0); LK(r2,r0,r3,r1,r4,4); - S4(r2,r0,r3,r1,r4); LK(r0,r3,r1,r4,r2,5); - S5(r0,r3,r1,r4,r2); LK(r2,r0,r3,r4,r1,6); - S6(r2,r0,r3,r4,r1); LK(r3,r1,r0,r4,r2,7); - S7(r3,r1,r0,r4,r2); LK(r2,r0,r4,r3,r1,8); - S0(r2,r0,r4,r3,r1); LK(r4,r0,r3,r2,r1,9); - S1(r4,r0,r3,r2,r1); LK(r1,r3,r2,r4,r0,10); - S2(r1,r3,r2,r4,r0); LK(r0,r3,r1,r4,r2,11); - S3(r0,r3,r1,r4,r2); LK(r4,r2,r3,r0,r1,12); - S4(r4,r2,r3,r0,r1); LK(r2,r3,r0,r1,r4,13); - S5(r2,r3,r0,r1,r4); LK(r4,r2,r3,r1,r0,14); - S6(r4,r2,r3,r1,r0); LK(r3,r0,r2,r1,r4,15); - S7(r3,r0,r2,r1,r4); LK(r4,r2,r1,r3,r0,16); - S0(r4,r2,r1,r3,r0); LK(r1,r2,r3,r4,r0,17); - S1(r1,r2,r3,r4,r0); LK(r0,r3,r4,r1,r2,18); - S2(r0,r3,r4,r1,r2); LK(r2,r3,r0,r1,r4,19); - S3(r2,r3,r0,r1,r4); LK(r1,r4,r3,r2,r0,20); - S4(r1,r4,r3,r2,r0); LK(r4,r3,r2,r0,r1,21); - S5(r4,r3,r2,r0,r1); LK(r1,r4,r3,r0,r2,22); - S6(r1,r4,r3,r0,r2); LK(r3,r2,r4,r0,r1,23); - S7(r3,r2,r4,r0,r1); LK(r1,r4,r0,r3,r2,24); - S0(r1,r4,r0,r3,r2); LK(r0,r4,r3,r1,r2,25); - S1(r0,r4,r3,r1,r2); LK(r2,r3,r1,r0,r4,26); - S2(r2,r3,r1,r0,r4); LK(r4,r3,r2,r0,r1,27); - S3(r4,r3,r2,r0,r1); LK(r0,r1,r3,r4,r2,28); - S4(r0,r1,r3,r4,r2); LK(r1,r3,r4,r2,r0,29); - S5(r1,r3,r4,r2,r0); LK(r0,r1,r3,r2,r4,30); - S6(r0,r1,r3,r2,r4); LK(r3,r4,r1,r2,r0,31); - S7(r3,r4,r1,r2,r0); K(r0,r1,r2,r3,32); - - d[0] = cpu_to_le32(r0); - d[1] = cpu_to_le32(r1); - d[2] = cpu_to_le32(r2); - d[3] = cpu_to_le32(r3); -} - -static void serpent_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -{ - struct serpent_ctx *ctx = crypto_tfm_ctx(tfm); - const u32 - *k = ((struct serpent_ctx *)ctx)->expkey; - const __le32 *s = (const __le32 *)src; - __le32 *d = (__le32 *)dst; - u32 r0, r1, r2, r3, r4; - - r0 = le32_to_cpu(s[0]); - r1 = le32_to_cpu(s[1]); - r2 = le32_to_cpu(s[2]); - r3 = le32_to_cpu(s[3]); - - K(r0,r1,r2,r3,32); - SI7(r0,r1,r2,r3,r4); KL(r1,r3,r0,r4,r2,31); - SI6(r1,r3,r0,r4,r2); KL(r0,r2,r4,r1,r3,30); - SI5(r0,r2,r4,r1,r3); KL(r2,r3,r0,r4,r1,29); - SI4(r2,r3,r0,r4,r1); KL(r2,r0,r1,r4,r3,28); - SI3(r2,r0,r1,r4,r3); KL(r1,r2,r3,r4,r0,27); - SI2(r1,r2,r3,r4,r0); KL(r2,r0,r4,r3,r1,26); - SI1(r2,r0,r4,r3,r1); KL(r1,r0,r4,r3,r2,25); - SI0(r1,r0,r4,r3,r2); KL(r4,r2,r0,r1,r3,24); - SI7(r4,r2,r0,r1,r3); KL(r2,r1,r4,r3,r0,23); - SI6(r2,r1,r4,r3,r0); KL(r4,r0,r3,r2,r1,22); - SI5(r4,r0,r3,r2,r1); KL(r0,r1,r4,r3,r2,21); - SI4(r0,r1,r4,r3,r2); KL(r0,r4,r2,r3,r1,20); - SI3(r0,r4,r2,r3,r1); KL(r2,r0,r1,r3,r4,19); - SI2(r2,r0,r1,r3,r4); KL(r0,r4,r3,r1,r2,18); - SI1(r0,r4,r3,r1,r2); KL(r2,r4,r3,r1,r0,17); - SI0(r2,r4,r3,r1,r0); KL(r3,r0,r4,r2,r1,16); - SI7(r3,r0,r4,r2,r1); KL(r0,r2,r3,r1,r4,15); - SI6(r0,r2,r3,r1,r4); KL(r3,r4,r1,r0,r2,14); - SI5(r3,r4,r1,r0,r2); KL(r4,r2,r3,r1,r0,13); - SI4(r4,r2,r3,r1,r0); KL(r4,r3,r0,r1,r2,12); - SI3(r4,r3,r0,r1,r2); KL(r0,r4,r2,r1,r3,11); - SI2(r0,r4,r2,r1,r3); KL(r4,r3,r1,r2,r0,10); - SI1(r4,r3,r1,r2,r0); KL(r0,r3,r1,r2,r4,9); - SI0(r0,r3,r1,r2,r4); KL(r1,r4,r3,r0,r2,8); - SI7(r1,r4,r3,r0,r2); KL(r4,r0,r1,r2,r3,7); - SI6(r4,r0,r1,r2,r3); KL(r1,r3,r2,r4,r0,6); - SI5(r1,r3,r2,r4,r0); KL(r3,r0,r1,r2,r4,5); - SI4(r3,r0,r1,r2,r4); KL(r3,r1,r4,r2,r0,4); - SI3(r3,r1,r4,r2,r0); KL(r4,r3,r0,r2,r1,3); - SI2(r4,r3,r0,r2,r1); KL(r3,r1,r2,r0,r4,2); - SI1(r3,r1,r2,r0,r4); KL(r4,r1,r2,r0,r3,1); - SI0(r4,r1,r2,r0,r3); K(r2,r3,r1,r4,0); - - d[0] = cpu_to_le32(r2); - d[1] = cpu_to_le32(r3); - d[2] = cpu_to_le32(r1); - d[3] = cpu_to_le32(r4); -} - -static struct crypto_alg serpent_alg = { - .cra_name = "serpent", - .cra_flags = CRYPTO_ALG_TYPE_CIPHER, - .cra_blocksize = SERPENT_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct serpent_ctx), - .cra_alignma |