// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2006 * NTT (Nippon Telegraph and Telephone Corporation). */ /* * Algorithm Specification * https://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html */ #include <crypto/algapi.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/bitops.h> #include <asm/unaligned.h> static const u32 camellia_sp1110[256] = …; static const u32 camellia_sp0222[256] = …; static const u32 camellia_sp3033[256] = …; static const u32 camellia_sp4404[256] = …; #define CAMELLIA_MIN_KEY_SIZE … #define CAMELLIA_MAX_KEY_SIZE … #define CAMELLIA_BLOCK_SIZE … #define CAMELLIA_TABLE_BYTE_LEN … /* * NB: L and R below stand for 'left' and 'right' as in written numbers. * That is, in (xxxL,xxxR) pair xxxL holds most significant digits, * _not_ least significant ones! */ /* key constants */ #define CAMELLIA_SIGMA1L … #define CAMELLIA_SIGMA1R … #define CAMELLIA_SIGMA2L … #define CAMELLIA_SIGMA2R … #define CAMELLIA_SIGMA3L … #define CAMELLIA_SIGMA3R … #define CAMELLIA_SIGMA4L … #define CAMELLIA_SIGMA4R … #define CAMELLIA_SIGMA5L … #define CAMELLIA_SIGMA5R … #define CAMELLIA_SIGMA6L … #define CAMELLIA_SIGMA6R … /* * macros */ #define ROLDQ(ll, lr, rl, rr, w0, w1, bits) … #define ROLDQo32(ll, lr, rl, rr, w0, w1, bits) … #define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) … #define SUBKEY_L(INDEX) … #define SUBKEY_R(INDEX) … static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max) { … } static void camellia_setup128(const unsigned char *key, u32 *subkey) { … } static void camellia_setup256(const unsigned char *key, u32 *subkey) { … } static void camellia_setup192(const unsigned char *key, u32 *subkey) { … } /* * Encrypt/decrypt */ #define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) … #define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) … /* max = 24: 128bit encrypt, max = 32: 256bit encrypt */ static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max) { … } static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i) { … } struct camellia_ctx { … }; static int camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len) { … } static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { … } static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { … } static struct crypto_alg camellia_alg = …; static int __init camellia_init(void) { … } static void __exit camellia_fini(void) { … } subsys_initcall(camellia_init); module_exit(camellia_fini); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_ALIAS_CRYPTO(…) …; MODULE_ALIAS_CRYPTO(…) …;
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