diff options
Diffstat (limited to 'crypto/rmd256.c')
| -rw-r--r-- | crypto/rmd256.c | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/crypto/rmd256.c b/crypto/rmd256.c deleted file mode 100644 index 3c730e9de5fd..000000000000 --- a/crypto/rmd256.c +++ /dev/null @@ -1,342 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Cryptographic API. - * - * RIPEMD-256 - RACE Integrity Primitives Evaluation Message Digest. - * - * Based on the reference implementation by Antoon Bosselaers, ESAT-COSIC - * - * Copyright (c) 2008 Adrian-Ken Rueegsegger <ken@codelabs.ch> - */ -#include <crypto/internal/hash.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/types.h> -#include <asm/byteorder.h> - -#include "ripemd.h" - -struct rmd256_ctx { - u64 byte_count; - u32 state[8]; - __le32 buffer[16]; -}; - -#define K1 RMD_K1 -#define K2 RMD_K2 -#define K3 RMD_K3 -#define K4 RMD_K4 -#define KK1 RMD_K6 -#define KK2 RMD_K7 -#define KK3 RMD_K8 -#define KK4 RMD_K1 - -#define F1(x, y, z) (x ^ y ^ z) /* XOR */ -#define F2(x, y, z) (z ^ (x & (y ^ z))) /* x ? y : z */ -#define F3(x, y, z) ((x | ~y) ^ z) -#define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */ - -#define ROUND(a, b, c, d, f, k, x, s) { \ - (a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \ - (a) = rol32((a), (s)); \ -} - -static void rmd256_transform(u32 *state, const __le32 *in) -{ - u32 aa, bb, cc, dd, aaa, bbb, ccc, ddd; - - /* Initialize left lane */ - aa = state[0]; - bb = state[1]; - cc = state[2]; - dd = state[3]; - - /* Initialize right lane */ - aaa = state[4]; - bbb = state[5]; - ccc = state[6]; - ddd = state[7]; - - /* round 1: left lane */ - ROUND(aa, bb, cc, dd, F1, K1, in[0], 11); - ROUND(dd, aa, bb, cc, F1, K1, in[1], 14); - ROUND(cc, dd, aa, bb, F1, K1, in[2], 15); - ROUND(bb, cc, dd, aa, F1, K1, in[3], 12); - ROUND(aa, bb, cc, dd, F1, K1, in[4], 5); - ROUND(dd, aa, bb, cc, F1, K1, in[5], 8); - ROUND(cc, dd, aa, bb, F1, K1, in[6], 7); - ROUND(bb, cc, dd, aa, F1, K1, in[7], 9); - ROUND(aa, bb, cc, dd, F1, K1, in[8], 11); - ROUND(dd, aa, bb, cc, F1, K1, in[9], 13); - ROUND(cc, dd, aa, bb, F1, K1, in[10], 14); - ROUND(bb, cc, dd, aa, F1, K1, in[11], 15); - ROUND(aa, bb, cc, dd, F1, K1, in[12], 6); - ROUND(dd, aa, bb, cc, F1, K1, in[13], 7); - ROUND(cc, dd, aa, bb, F1, K1, in[14], 9); - ROUND(bb, cc, dd, aa, F1, K1, in[15], 8); - - /* round 1: right lane */ - ROUND(aaa, bbb, ccc, ddd, F4, KK1, in[5], 8); - ROUND(ddd, aaa, bbb, ccc, F4, KK1, in[14], 9); - ROUND(ccc, ddd, aaa, bbb, F4, KK1, in[7], 9); - ROUND(bbb, ccc, ddd, aaa, F4, KK1, in[0], 11); - ROUND(aaa, bbb, ccc, ddd, F4, KK1, in[9], 13); - ROUND(ddd, aaa, bbb, ccc, F4, KK1, in[2], 15); - ROUND(ccc, ddd, aaa, bbb, F4, KK1, in[11], 15); - ROUND(bbb, ccc, ddd, aaa, F4, KK1, in[4], 5); - ROUND(aaa, bbb, ccc, ddd, F4, KK1, in[13], 7); - ROUND(ddd, aaa, bbb, ccc, F4, KK1, in[6], 7); - ROUND(ccc, ddd, aaa, bbb, F4, KK1, in[15], 8); - ROUND(bbb, ccc, ddd, aaa, F4, KK1, in[8], 11); - ROUND(aaa, bbb, ccc, ddd, F4, KK1, in[1], 14); - ROUND(ddd, aaa, bbb, ccc, F4, KK1, in[10], 14); - ROUND(ccc, ddd, aaa, bbb, F4, KK1, in[3], 12); - ROUND(bbb, ccc, ddd, aaa, F4, KK1, in[12], 6); - - /* Swap contents of "a" registers */ - swap(aa, aaa); - - /* round 2: left lane */ - ROUND(aa, bb, cc, dd, F2, K2, in[7], 7); - ROUND(dd, aa, bb, cc, F2, K2, in[4], 6); - ROUND(cc, dd, aa, bb, F2, K2, in[13], 8); - ROUND(bb, cc, dd, aa, F2, K2, in[1], 13); - ROUND(aa, bb, cc, dd, F2, K2, in[10], 11); - ROUND(dd, aa, bb, cc, F2, K2, in[6], 9); - ROUND(cc, dd, aa, bb, F2, K2, in[15], 7); - ROUND(bb, cc, dd, aa, F2, K2, in[3], 15); - ROUND(aa, bb, cc, dd, F2, K2, in[12], 7); - ROUND(dd, aa, bb, cc, F2, K2, in[0], 12); - ROUND(cc, dd, aa, bb, F2, K2, in[9], 15); - ROUND(bb, cc, dd, aa, F2, K2, in[5], 9); - ROUND(aa, bb, cc, dd, F2, K2, in[2], 11); - ROUND(dd, aa, bb, cc, F2, K2, in[14], 7); - ROUND(cc, dd, aa, bb, F2, K2, in[11], 13); - ROUND(bb, cc, dd, aa, F2, K2, in[8], 12); - - /* round 2: right lane */ - ROUND(aaa, bbb, ccc, ddd, F3, KK2, in[6], 9); - ROUND(ddd, aaa, bbb, ccc, F3, KK2, in[11], 13); - ROUND(ccc, ddd, aaa, bbb, F3, KK2, in[3], 15); - ROUND(bbb, ccc, ddd, aaa, F3, KK2, in[7], 7); - ROUND(aaa, bbb, ccc, ddd, F3, KK2, in[0], 12); - ROUND(ddd, aaa, bbb, ccc, F3, KK2, in[13], 8); - ROUND(ccc, ddd, aaa, bbb, F3, KK2, in[5], 9); - ROUND(bbb, ccc, ddd, aaa, F3, KK2, in[10], 11); - ROUND(aaa, bbb, ccc, ddd, F3, KK2, in[14], 7); - ROUND(ddd, aaa, bbb, ccc, F3, KK2, in[15], 7); - ROUND(ccc, ddd, aaa, bbb, F3, KK2, in[8], 12); - ROUND(bbb, ccc, ddd, aaa, F3, KK2, in[12], 7); - ROUND(aaa, bbb, ccc, ddd, F3, KK2, in[4], 6); - ROUND(ddd, aaa, bbb, ccc, F3, KK2, in[9], 15); - ROUND(ccc, ddd, aaa, bbb, F3, KK2, in[1], 13); - ROUND(bbb, ccc, ddd, aaa, F3, KK2, in[2], 11); - - /* Swap contents of "b" registers */ - swap(bb, bbb); - - /* round 3: left lane */ - ROUND(aa, bb, cc, dd, F3, K3, in[3], 11); - ROUND(dd, aa, bb, cc, F3, K3, in[10], 13); - ROUND(cc, dd, aa, bb, F3, K3, in[14], 6); - ROUND(bb, cc, dd, aa, F3, K3, in[4], 7); - ROUND(aa, bb, cc, dd, F3, K3, in[9], 14); - ROUND(dd, aa, bb, cc, F3, K3, in[15], 9); - ROUND(cc, dd, aa, bb, F3, K3, in[8], 13); - ROUND(bb, cc, dd, aa, F3, K3, in[1], 15); - ROUND(aa, bb, cc, dd, F3, K3, in[2], 14); - ROUND(dd, aa, bb, cc, F3, K3, in[7], 8); - ROUND(cc, dd, aa, bb, F3, K3, in[0], 13); - ROUND(bb, cc, dd, aa, F3, K3, in[6], 6); - ROUND(aa, bb, cc, dd, F3, K3, in[13], 5); - ROUND(dd, aa, bb, cc, F3, K3, in[11], 12); - ROUND(cc, dd, aa, bb, F3, K3, in[5], 7); - ROUND(bb, cc, dd, aa, F3, K3, in[12], 5); - - /* round 3: right lane */ - ROUND(aaa, bbb, ccc, ddd, F2, KK3, in[15], 9); - ROUND(ddd, aaa, bbb, ccc, F2, KK3, in[5], 7); - ROUND(ccc, ddd, aaa, bbb, F2, KK3, in[1], 15); - ROUND(bbb, ccc, ddd, aaa, F2, KK3, in[3], 11); - ROUND(aaa, bbb, ccc, ddd, F2, KK3, in[7], 8); - ROUND(ddd, aaa, bbb, ccc, F2, KK3, in[14], 6); - ROUND(ccc, ddd, aaa, bbb, F2, KK3, in[6], 6); - ROUND(bbb, ccc, ddd, aaa, F2, KK3, in[9], 14); - ROUND(aaa, bbb, ccc, ddd, F2, KK3, in[11], 12); - ROUND(ddd, aaa, bbb, ccc, F2, KK3, in[8], 13); - ROUND(ccc, ddd, aaa, bbb, F2, KK3, in[12], 5); - ROUND(bbb, ccc, ddd, aaa, F2, KK3, in[2], 14); - ROUND(aaa, bbb, ccc, ddd, F2, KK3, in[10], 13); - ROUND(ddd, aaa, bbb, ccc, F2, KK3, in[0], 13); - ROUND(ccc, ddd, aaa, bbb, F2, KK3, in[4], 7); - ROUND(bbb, ccc, ddd, aaa, F2, KK3, in[13], 5); - - /* Swap contents of "c" registers */ - swap(cc, ccc); - - /* round 4: left lane */ - ROUND(aa, bb, cc, dd, F4, K4, in[1], 11); - ROUND(dd, aa, bb, cc, F4, K4, in[9], 12); - ROUND(cc, dd, aa, bb, F4, K4, in[11], 14); - ROUND(bb, cc, dd, aa, F4, K4, in[10], 15); - ROUND(aa, bb, cc, dd, F4, K4, in[0], 14); - ROUND(dd, aa, bb, cc, F4, K4, in[8], 15); - ROUND(cc, dd, aa, bb, F4, K4, in[12], 9); - ROUND(bb, cc, dd, aa, F4, K4, in[4], 8); - ROUND(aa, bb, cc, dd, F4, K4, in[13], 9); - ROUND(dd, aa, bb, cc, F4, K4, in[3], 14); - ROUND(cc, dd, aa, bb, F4, K4, in[7], 5); - ROUND(bb, cc, dd, aa, F4, K4, in[15], 6); - ROUND(aa, bb, cc, dd, F4, K4, in[14], 8); - ROUND(dd, aa, bb, cc, F4, K4, in[5], 6); - ROUND(cc, dd, aa, bb, F4, K4, in[6], 5); - ROUND(bb, cc, dd, aa, F4, K4, in[2], 12); - - /* round 4: right lane */ - ROUND(aaa, bbb, ccc, ddd, F1, KK4, in[8], 15); - ROUND(ddd, aaa, bbb, ccc, F1, KK4, in[6], 5); - ROUND(ccc, ddd, aaa, bbb, F1, KK4, in[4], 8); - ROUND(bbb, ccc, ddd, aaa, F1, KK4, in[1], 11); - ROUND(aaa, bbb, ccc, ddd, F1, KK4, in[3], 14); - ROUND(ddd, aaa, bbb, ccc, F1, KK4, in[11], 14); - ROUND(ccc, ddd, aaa, bbb, F1, KK4, in[15], 6); - ROUND(bbb, ccc, ddd, aaa, F1, KK4, in[0], 14); - ROUND(aaa, bbb, ccc, ddd, F1, KK4, in[5], 6); - ROUND(ddd, aaa, bbb, ccc, F1, KK4, in[12], 9); - ROUND(ccc, ddd, aaa, bbb, F1, KK4, in[2], 12); - ROUND(bbb, ccc, ddd, aaa, F1, KK4, in[13], 9); - ROUND(aaa, bbb, ccc, ddd, F1, KK4, in[9], 12); - ROUND(ddd, aaa, bbb, ccc, F1, KK4, in[7], 5); - ROUND(ccc, ddd, aaa, bbb, F1, KK4, in[10], 15); - ROUND(bbb, ccc, ddd, aaa, F1, KK4, in[14], 8); - - /* Swap contents of "d" registers */ - swap(dd, ddd); - - /* combine results */ - state[0] += aa; - state[1] += bb; - state[2] += cc; - state[3] += dd; - state[4] += aaa; - state[5] += bbb; - state[6] += ccc; - state[7] += ddd; -} - -static int rmd256_init(struct shash_desc *desc) -{ - struct rmd256_ctx *rctx = shash_desc_ctx(desc); - - rctx->byte_count = 0; - - rctx->state[0] = RMD_H0; - rctx->state[1] = RMD_H1; - rctx->state[2] = RMD_H2; - rctx->state[3] = RMD_H3; - rctx->state[4] = RMD_H5; - rctx->state[5] = RMD_H6; - rctx->state[6] = RMD_H7; - rctx->state[7] = RMD_H8; - - memset(rctx->buffer, 0, sizeof(rctx->buffer)); - - return 0; -} - -static int rmd256_update(struct shash_desc *desc, const u8 *data, - unsigned int len) -{ - struct rmd256_ctx *rctx = shash_desc_ctx(desc); - const u32 avail = sizeof(rctx->buffer) - (rctx->byte_count & 0x3f); - - rctx->byte_count += len; - - /* Enough space in buffer? If so copy and we're done */ - if (avail > len) { - memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail), - data, len); - goto out; - } - - memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail), - data, avail); - - rmd256_transform(rctx->state, rctx->buffer); - data += avail; - len -= avail; - - while (len >= sizeof(rctx->buffer)) { - memcpy(rctx->buffer, data, sizeof(rctx->buffer)); - rmd256_transform(rctx->state, rctx->buffer); - data += sizeof(rctx->buffer); - len -= sizeof(rctx->buffer); - } - - memcpy(rctx->buffer, data, len); - -out: - return 0; -} - -/* Add padding and return the message digest. */ -static int rmd256_final(struct shash_desc *desc, u8 *out) -{ - struct rmd256_ctx *rctx = shash_desc_ctx(desc); - u32 i, index, padlen; - __le64 bits; - __le32 *dst = (__le32 *)out; - static const u8 padding[64] = { 0x80, }; - - bits = cpu_to_le64(rctx->byte_count << 3); - - /* Pad out to 56 mod 64 */ - index = rctx->byte_count & 0x3f; - padlen = (index < 56) ? (56 - index) : ((64+56) - index); - rmd256_update(desc, padding, padlen); - - /* Append length */ - rmd256_update(desc, (const u8 *)&bits, sizeof(bits)); - - /* Store state in digest */ - for (i = 0; i < 8; i++) - dst[i] = cpu_to_le32p(&rctx->state[i]); - - /* Wipe context */ - memset(rctx, 0, sizeof(*rctx)); - - return 0; -} - -static struct shash_alg alg = { - .digestsize = RMD256_DIGEST_SIZE, - .init = rmd256_init, - .update = rmd256_update, - .final = rmd256_final, - .descsize = sizeof(struct rmd256_ctx), - .base = { - .cra_name = "rmd256", - .cra_driver_name = "rmd256-generic", - .cra_blocksize = RMD256_BLOCK_SIZE, - .cra_module = THIS_MODULE, - } -}; - -static int __init rmd256_mod_init(void) -{ - return crypto_register_shash(&alg); -} - -static void __exit rmd256_mod_fini(void) -{ - crypto_unregister_shash(&alg); -} - -subsys_initcall(rmd256_mod_init); -module_exit(rmd256_mod_fini); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Adrian-Ken Rueegsegger <ken@codelabs.ch>"); -MODULE_DESCRIPTION("RIPEMD-256 Message Digest"); -MODULE_ALIAS_CRYPTO("rmd256"); |