diff options
Diffstat (limited to 'crypto/serpent_generic.c')
-rw-r--r-- | crypto/serpent_generic.c | 82 |
1 files changed, 5 insertions, 77 deletions
diff --git a/crypto/serpent_generic.c b/crypto/serpent_generic.c index 492c1d0bfe06..a932e0b2964f 100644 --- a/crypto/serpent_generic.c +++ b/crypto/serpent_generic.c @@ -5,11 +5,6 @@ * 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 */ #include <linux/init.h> @@ -576,59 +571,7 @@ static void serpent_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) __serpent_decrypt(ctx, dst, src); } -static int tnepres_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen) -{ - u8 rev_key[SERPENT_MAX_KEY_SIZE]; - int i; - - for (i = 0; i < keylen; ++i) - rev_key[keylen - i - 1] = key[i]; - - return serpent_setkey(tfm, rev_key, keylen); -} - -static void tnepres_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -{ - const u32 * const s = (const u32 * const)src; - u32 * const d = (u32 * const)dst; - - u32 rs[4], rd[4]; - - rs[0] = swab32(s[3]); - rs[1] = swab32(s[2]); - rs[2] = swab32(s[1]); - rs[3] = swab32(s[0]); - - serpent_encrypt(tfm, (u8 *)rd, (u8 *)rs); - - d[0] = swab32(rd[3]); - d[1] = swab32(rd[2]); - d[2] = swab32(rd[1]); - d[3] = swab32(rd[0]); -} - -static void tnepres_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -{ - const u32 * const s = (const u32 * const)src; - u32 * const d = (u32 * const)dst; - - u32 rs[4], rd[4]; - - rs[0] = swab32(s[3]); - rs[1] = swab32(s[2]); - rs[2] = swab32(s[1]); - rs[3] = swab32(s[0]); - - serpent_decrypt(tfm, (u8 *)rd, (u8 *)rs); - - d[0] = swab32(rd[3]); - d[1] = swab32(rd[2]); - d[2] = swab32(rd[1]); - d[3] = swab32(rd[0]); -} - -static struct crypto_alg srp_algs[2] = { { +static struct crypto_alg srp_alg = { .cra_name = "serpent", .cra_driver_name = "serpent-generic", .cra_priority = 100, @@ -643,38 +586,23 @@ static struct crypto_alg srp_algs[2] = { { .cia_setkey = serpent_setkey, .cia_encrypt = serpent_encrypt, .cia_decrypt = serpent_decrypt } } -}, { - .cra_name = "tnepres", - .cra_driver_name = "tnepres-generic", - .cra_flags = CRYPTO_ALG_TYPE_CIPHER, - .cra_blocksize = SERPENT_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct serpent_ctx), - .cra_alignmask = 3, - .cra_module = THIS_MODULE, - .cra_u = { .cipher = { - .cia_min_keysize = SERPENT_MIN_KEY_SIZE, - .cia_max_keysize = SERPENT_MAX_KEY_SIZE, - .cia_setkey = tnepres_setkey, - .cia_encrypt = tnepres_encrypt, - .cia_decrypt = tnepres_decrypt } } -} }; +}; static int __init serpent_mod_init(void) { - return crypto_register_algs(srp_algs, ARRAY_SIZE(srp_algs)); + return crypto_register_alg(&srp_alg); } static void __exit serpent_mod_fini(void) { - crypto_unregister_algs(srp_algs, ARRAY_SIZE(srp_algs)); + crypto_unregister_alg(&srp_alg); } subsys_initcall(serpent_mod_init); module_exit(serpent_mod_fini); MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Serpent and tnepres (kerneli compatible serpent reversed) Cipher Algorithm"); +MODULE_DESCRIPTION("Serpent Cipher Algorithm"); MODULE_AUTHOR("Dag Arne Osvik <osvik@ii.uib.no>"); -MODULE_ALIAS_CRYPTO("tnepres"); MODULE_ALIAS_CRYPTO("serpent"); MODULE_ALIAS_CRYPTO("serpent-generic"); |