crypto: rmd256 - remove RIPE-MD 256 hash algorithm

RIPE-MD 256 is never referenced anywhere in the kernel, and unlikely
to be depended upon by userspace via AF_ALG. So let's remove it

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ard Biesheuvel 2021-01-21 14:07:30 +01:00 committed by Herbert Xu
parent b21b9a5e0a
commit c15d4167f0
7 changed files with 1 additions and 441 deletions

View file

@ -834,18 +834,6 @@ config CRYPTO_RMD160
Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
See <https://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
config CRYPTO_RMD256
tristate "RIPEMD-256 digest algorithm"
select CRYPTO_HASH
help
RIPEMD-256 is an optional extension of RIPEMD-128 with a
256 bit hash. It is intended for applications that require
longer hash-results, without needing a larger security level
(than RIPEMD-128).
Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
See <https://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
config CRYPTO_RMD320
tristate "RIPEMD-320 digest algorithm"
select CRYPTO_HASH

View file

@ -68,7 +68,6 @@ obj-$(CONFIG_CRYPTO_NULL2) += crypto_null.o
obj-$(CONFIG_CRYPTO_MD4) += md4.o
obj-$(CONFIG_CRYPTO_MD5) += md5.o
obj-$(CONFIG_CRYPTO_RMD160) += rmd160.o
obj-$(CONFIG_CRYPTO_RMD256) += rmd256.o
obj-$(CONFIG_CRYPTO_RMD320) += rmd320.o
obj-$(CONFIG_CRYPTO_SHA1) += sha1_generic.o
obj-$(CONFIG_CRYPTO_SHA256) += sha256_generic.o

View file

@ -9,9 +9,6 @@
#define RMD160_DIGEST_SIZE 20
#define RMD160_BLOCK_SIZE 64
#define RMD256_DIGEST_SIZE 32
#define RMD256_BLOCK_SIZE 64
#define RMD320_DIGEST_SIZE 40
#define RMD320_BLOCK_SIZE 64

View file

@ -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");

View file

@ -71,7 +71,7 @@ static const char *check[] = {
"blowfish", "twofish", "serpent", "sha384", "sha512", "md4", "aes",
"cast6", "arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea",
"khazad", "wp512", "wp384", "wp256", "tnepres", "xeta", "fcrypt",
"camellia", "seed", "salsa20", "rmd160", "rmd256", "rmd320",
"camellia", "seed", "salsa20", "rmd160", "rmd320",
"lzo", "lzo-rle", "cts", "sha3-224", "sha3-256", "sha3-384",
"sha3-512", "streebog256", "streebog512",
NULL
@ -1871,10 +1871,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
ret += tcrypt_test("rmd160");
break;
case 41:
ret += tcrypt_test("rmd256");
break;
case 42:
ret += tcrypt_test("rmd320");
break;
@ -2405,10 +2401,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
test_hash_speed("rmd160", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
fallthrough;
case 316:
test_hash_speed("rmd256", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
fallthrough;
case 317:
test_hash_speed("rmd320", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
@ -2525,10 +2517,6 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
test_ahash_speed("rmd160", sec, generic_hash_speed_template);
if (mode > 400 && mode < 500) break;
fallthrough;
case 416:
test_ahash_speed("rmd256", sec, generic_hash_speed_template);
if (mode > 400 && mode < 500) break;
fallthrough;
case 417:
test_ahash_speed("rmd320", sec, generic_hash_speed_template);
if (mode > 400 && mode < 500) break;

View file

@ -5275,12 +5275,6 @@ static const struct alg_test_desc alg_test_descs[] = {
.suite = {
.hash = __VECS(rmd160_tv_template)
}
}, {
.alg = "rmd256",
.test = alg_test_hash,
.suite = {
.hash = __VECS(rmd256_tv_template)
}
}, {
.alg = "rmd320",
.test = alg_test_hash,

View file

@ -3200,70 +3200,6 @@ static const struct hash_testvec rmd160_tv_template[] = {
}
};
/*
* RIPEMD-256 test vectors
*/
static const struct hash_testvec rmd256_tv_template[] = {
{
.digest = "\x02\xba\x4c\x4e\x5f\x8e\xcd\x18"
"\x77\xfc\x52\xd6\x4d\x30\xe3\x7a"
"\x2d\x97\x74\xfb\x1e\x5d\x02\x63"
"\x80\xae\x01\x68\xe3\xc5\x52\x2d",
}, {
.plaintext = "a",
.psize = 1,
.digest = "\xf9\x33\x3e\x45\xd8\x57\xf5\xd9"
"\x0a\x91\xba\xb7\x0a\x1e\xba\x0c"
"\xfb\x1b\xe4\xb0\x78\x3c\x9a\xcf"
"\xcd\x88\x3a\x91\x34\x69\x29\x25",
}, {
.plaintext = "abc",
.psize = 3,
.digest = "\xaf\xbd\x6e\x22\x8b\x9d\x8c\xbb"
"\xce\xf5\xca\x2d\x03\xe6\xdb\xa1"
"\x0a\xc0\xbc\x7d\xcb\xe4\x68\x0e"
"\x1e\x42\xd2\xe9\x75\x45\x9b\x65",
}, {
.plaintext = "message digest",
.psize = 14,
.digest = "\x87\xe9\x71\x75\x9a\x1c\xe4\x7a"
"\x51\x4d\x5c\x91\x4c\x39\x2c\x90"
"\x18\xc7\xc4\x6b\xc1\x44\x65\x55"
"\x4a\xfc\xdf\x54\xa5\x07\x0c\x0e",
}, {
.plaintext = "abcdefghijklmnopqrstuvwxyz",
.psize = 26,
.digest = "\x64\x9d\x30\x34\x75\x1e\xa2\x16"
"\x77\x6b\xf9\xa1\x8a\xcc\x81\xbc"
"\x78\x96\x11\x8a\x51\x97\x96\x87"
"\x82\xdd\x1f\xd9\x7d\x8d\x51\x33",
}, {
.plaintext = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcde"
"fghijklmnopqrstuvwxyz0123456789",
.psize = 62,
.digest = "\x57\x40\xa4\x08\xac\x16\xb7\x20"
"\xb8\x44\x24\xae\x93\x1c\xbb\x1f"
"\xe3\x63\xd1\xd0\xbf\x40\x17\xf1"
"\xa8\x9f\x7e\xa6\xde\x77\xa0\xb8",
}, {
.plaintext = "1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890",
.psize = 80,
.digest = "\x06\xfd\xcc\x7a\x40\x95\x48\xaa"
"\xf9\x13\x68\xc0\x6a\x62\x75\xb5"
"\x53\xe3\xf0\x99\xbf\x0e\xa4\xed"
"\xfd\x67\x78\xdf\x89\xa8\x90\xdd",
}, {
.plaintext = "abcdbcdecdefdefgefghfghighij"
"hijkijkljklmklmnlmnomnopnopq",
.psize = 56,
.digest = "\x38\x43\x04\x55\x83\xaa\xc6\xc8"
"\xc8\xd9\x12\x85\x73\xe7\xa9\x80"
"\x9a\xfb\x2a\x0f\x34\xcc\xc3\x6e"
"\xa9\xe7\x2f\x16\xf6\x36\x8e\x3f",
}
};
/*
* RIPEMD-320 test vectors
*/