mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 09:44:18 +08:00
2874c5fd28
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
309 lines
11 KiB
C
309 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Cryptographic API.
|
|
*
|
|
* SHA-256, as specified in
|
|
* http://csrc.nist.gov/groups/STM/cavp/documents/shs/sha256-384-512.pdf
|
|
*
|
|
* SHA-256 code by Jean-Luc Cooke <jlcooke@certainkey.com>.
|
|
*
|
|
* Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
|
|
* Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
|
|
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
|
|
* SHA224 Support Copyright 2007 Intel Corporation <jonathan.lynch@intel.com>
|
|
*/
|
|
#include <crypto/internal/hash.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/types.h>
|
|
#include <crypto/sha.h>
|
|
#include <crypto/sha256_base.h>
|
|
#include <asm/byteorder.h>
|
|
#include <asm/unaligned.h>
|
|
|
|
const u8 sha224_zero_message_hash[SHA224_DIGEST_SIZE] = {
|
|
0xd1, 0x4a, 0x02, 0x8c, 0x2a, 0x3a, 0x2b, 0xc9, 0x47,
|
|
0x61, 0x02, 0xbb, 0x28, 0x82, 0x34, 0xc4, 0x15, 0xa2,
|
|
0xb0, 0x1f, 0x82, 0x8e, 0xa6, 0x2a, 0xc5, 0xb3, 0xe4,
|
|
0x2f
|
|
};
|
|
EXPORT_SYMBOL_GPL(sha224_zero_message_hash);
|
|
|
|
const u8 sha256_zero_message_hash[SHA256_DIGEST_SIZE] = {
|
|
0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14,
|
|
0x9a, 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24,
|
|
0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c,
|
|
0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55
|
|
};
|
|
EXPORT_SYMBOL_GPL(sha256_zero_message_hash);
|
|
|
|
static inline u32 Ch(u32 x, u32 y, u32 z)
|
|
{
|
|
return z ^ (x & (y ^ z));
|
|
}
|
|
|
|
static inline u32 Maj(u32 x, u32 y, u32 z)
|
|
{
|
|
return (x & y) | (z & (x | y));
|
|
}
|
|
|
|
#define e0(x) (ror32(x, 2) ^ ror32(x,13) ^ ror32(x,22))
|
|
#define e1(x) (ror32(x, 6) ^ ror32(x,11) ^ ror32(x,25))
|
|
#define s0(x) (ror32(x, 7) ^ ror32(x,18) ^ (x >> 3))
|
|
#define s1(x) (ror32(x,17) ^ ror32(x,19) ^ (x >> 10))
|
|
|
|
static inline void LOAD_OP(int I, u32 *W, const u8 *input)
|
|
{
|
|
W[I] = get_unaligned_be32((__u32 *)input + I);
|
|
}
|
|
|
|
static inline void BLEND_OP(int I, u32 *W)
|
|
{
|
|
W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
|
|
}
|
|
|
|
static void sha256_transform(u32 *state, const u8 *input)
|
|
{
|
|
u32 a, b, c, d, e, f, g, h, t1, t2;
|
|
u32 W[64];
|
|
int i;
|
|
|
|
/* load the input */
|
|
for (i = 0; i < 16; i++)
|
|
LOAD_OP(i, W, input);
|
|
|
|
/* now blend */
|
|
for (i = 16; i < 64; i++)
|
|
BLEND_OP(i, W);
|
|
|
|
/* load the state into our registers */
|
|
a=state[0]; b=state[1]; c=state[2]; d=state[3];
|
|
e=state[4]; f=state[5]; g=state[6]; h=state[7];
|
|
|
|
/* now iterate */
|
|
t1 = h + e1(e) + Ch(e,f,g) + 0x428a2f98 + W[ 0];
|
|
t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
|
|
t1 = g + e1(d) + Ch(d,e,f) + 0x71374491 + W[ 1];
|
|
t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
|
|
t1 = f + e1(c) + Ch(c,d,e) + 0xb5c0fbcf + W[ 2];
|
|
t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
|
|
t1 = e + e1(b) + Ch(b,c,d) + 0xe9b5dba5 + W[ 3];
|
|
t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
|
|
t1 = d + e1(a) + Ch(a,b,c) + 0x3956c25b + W[ 4];
|
|
t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
|
|
t1 = c + e1(h) + Ch(h,a,b) + 0x59f111f1 + W[ 5];
|
|
t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
|
|
t1 = b + e1(g) + Ch(g,h,a) + 0x923f82a4 + W[ 6];
|
|
t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
|
|
t1 = a + e1(f) + Ch(f,g,h) + 0xab1c5ed5 + W[ 7];
|
|
t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
|
|
|
|
t1 = h + e1(e) + Ch(e,f,g) + 0xd807aa98 + W[ 8];
|
|
t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
|
|
t1 = g + e1(d) + Ch(d,e,f) + 0x12835b01 + W[ 9];
|
|
t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
|
|
t1 = f + e1(c) + Ch(c,d,e) + 0x243185be + W[10];
|
|
t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
|
|
t1 = e + e1(b) + Ch(b,c,d) + 0x550c7dc3 + W[11];
|
|
t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
|
|
t1 = d + e1(a) + Ch(a,b,c) + 0x72be5d74 + W[12];
|
|
t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
|
|
t1 = c + e1(h) + Ch(h,a,b) + 0x80deb1fe + W[13];
|
|
t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
|
|
t1 = b + e1(g) + Ch(g,h,a) + 0x9bdc06a7 + W[14];
|
|
t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
|
|
t1 = a + e1(f) + Ch(f,g,h) + 0xc19bf174 + W[15];
|
|
t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
|
|
|
|
t1 = h + e1(e) + Ch(e,f,g) + 0xe49b69c1 + W[16];
|
|
t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
|
|
t1 = g + e1(d) + Ch(d,e,f) + 0xefbe4786 + W[17];
|
|
t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
|
|
t1 = f + e1(c) + Ch(c,d,e) + 0x0fc19dc6 + W[18];
|
|
t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
|
|
t1 = e + e1(b) + Ch(b,c,d) + 0x240ca1cc + W[19];
|
|
t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
|
|
t1 = d + e1(a) + Ch(a,b,c) + 0x2de92c6f + W[20];
|
|
t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
|
|
t1 = c + e1(h) + Ch(h,a,b) + 0x4a7484aa + W[21];
|
|
t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
|
|
t1 = b + e1(g) + Ch(g,h,a) + 0x5cb0a9dc + W[22];
|
|
t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
|
|
t1 = a + e1(f) + Ch(f,g,h) + 0x76f988da + W[23];
|
|
t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
|
|
|
|
t1 = h + e1(e) + Ch(e,f,g) + 0x983e5152 + W[24];
|
|
t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
|
|
t1 = g + e1(d) + Ch(d,e,f) + 0xa831c66d + W[25];
|
|
t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
|
|
t1 = f + e1(c) + Ch(c,d,e) + 0xb00327c8 + W[26];
|
|
t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
|
|
t1 = e + e1(b) + Ch(b,c,d) + 0xbf597fc7 + W[27];
|
|
t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
|
|
t1 = d + e1(a) + Ch(a,b,c) + 0xc6e00bf3 + W[28];
|
|
t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
|
|
t1 = c + e1(h) + Ch(h,a,b) + 0xd5a79147 + W[29];
|
|
t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
|
|
t1 = b + e1(g) + Ch(g,h,a) + 0x06ca6351 + W[30];
|
|
t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
|
|
t1 = a + e1(f) + Ch(f,g,h) + 0x14292967 + W[31];
|
|
t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
|
|
|
|
t1 = h + e1(e) + Ch(e,f,g) + 0x27b70a85 + W[32];
|
|
t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
|
|
t1 = g + e1(d) + Ch(d,e,f) + 0x2e1b2138 + W[33];
|
|
t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
|
|
t1 = f + e1(c) + Ch(c,d,e) + 0x4d2c6dfc + W[34];
|
|
t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
|
|
t1 = e + e1(b) + Ch(b,c,d) + 0x53380d13 + W[35];
|
|
t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
|
|
t1 = d + e1(a) + Ch(a,b,c) + 0x650a7354 + W[36];
|
|
t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
|
|
t1 = c + e1(h) + Ch(h,a,b) + 0x766a0abb + W[37];
|
|
t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
|
|
t1 = b + e1(g) + Ch(g,h,a) + 0x81c2c92e + W[38];
|
|
t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
|
|
t1 = a + e1(f) + Ch(f,g,h) + 0x92722c85 + W[39];
|
|
t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
|
|
|
|
t1 = h + e1(e) + Ch(e,f,g) + 0xa2bfe8a1 + W[40];
|
|
t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
|
|
t1 = g + e1(d) + Ch(d,e,f) + 0xa81a664b + W[41];
|
|
t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
|
|
t1 = f + e1(c) + Ch(c,d,e) + 0xc24b8b70 + W[42];
|
|
t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
|
|
t1 = e + e1(b) + Ch(b,c,d) + 0xc76c51a3 + W[43];
|
|
t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
|
|
t1 = d + e1(a) + Ch(a,b,c) + 0xd192e819 + W[44];
|
|
t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
|
|
t1 = c + e1(h) + Ch(h,a,b) + 0xd6990624 + W[45];
|
|
t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
|
|
t1 = b + e1(g) + Ch(g,h,a) + 0xf40e3585 + W[46];
|
|
t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
|
|
t1 = a + e1(f) + Ch(f,g,h) + 0x106aa070 + W[47];
|
|
t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
|
|
|
|
t1 = h + e1(e) + Ch(e,f,g) + 0x19a4c116 + W[48];
|
|
t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
|
|
t1 = g + e1(d) + Ch(d,e,f) + 0x1e376c08 + W[49];
|
|
t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
|
|
t1 = f + e1(c) + Ch(c,d,e) + 0x2748774c + W[50];
|
|
t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
|
|
t1 = e + e1(b) + Ch(b,c,d) + 0x34b0bcb5 + W[51];
|
|
t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
|
|
t1 = d + e1(a) + Ch(a,b,c) + 0x391c0cb3 + W[52];
|
|
t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
|
|
t1 = c + e1(h) + Ch(h,a,b) + 0x4ed8aa4a + W[53];
|
|
t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
|
|
t1 = b + e1(g) + Ch(g,h,a) + 0x5b9cca4f + W[54];
|
|
t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
|
|
t1 = a + e1(f) + Ch(f,g,h) + 0x682e6ff3 + W[55];
|
|
t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
|
|
|
|
t1 = h + e1(e) + Ch(e,f,g) + 0x748f82ee + W[56];
|
|
t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
|
|
t1 = g + e1(d) + Ch(d,e,f) + 0x78a5636f + W[57];
|
|
t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
|
|
t1 = f + e1(c) + Ch(c,d,e) + 0x84c87814 + W[58];
|
|
t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
|
|
t1 = e + e1(b) + Ch(b,c,d) + 0x8cc70208 + W[59];
|
|
t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
|
|
t1 = d + e1(a) + Ch(a,b,c) + 0x90befffa + W[60];
|
|
t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
|
|
t1 = c + e1(h) + Ch(h,a,b) + 0xa4506ceb + W[61];
|
|
t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
|
|
t1 = b + e1(g) + Ch(g,h,a) + 0xbef9a3f7 + W[62];
|
|
t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
|
|
t1 = a + e1(f) + Ch(f,g,h) + 0xc67178f2 + W[63];
|
|
t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
|
|
|
|
state[0] += a; state[1] += b; state[2] += c; state[3] += d;
|
|
state[4] += e; state[5] += f; state[6] += g; state[7] += h;
|
|
|
|
/* clear any sensitive info... */
|
|
a = b = c = d = e = f = g = h = t1 = t2 = 0;
|
|
memzero_explicit(W, 64 * sizeof(u32));
|
|
}
|
|
|
|
static void sha256_generic_block_fn(struct sha256_state *sst, u8 const *src,
|
|
int blocks)
|
|
{
|
|
while (blocks--) {
|
|
sha256_transform(sst->state, src);
|
|
src += SHA256_BLOCK_SIZE;
|
|
}
|
|
}
|
|
|
|
int crypto_sha256_update(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len)
|
|
{
|
|
return sha256_base_do_update(desc, data, len, sha256_generic_block_fn);
|
|
}
|
|
EXPORT_SYMBOL(crypto_sha256_update);
|
|
|
|
static int sha256_final(struct shash_desc *desc, u8 *out)
|
|
{
|
|
sha256_base_do_finalize(desc, sha256_generic_block_fn);
|
|
return sha256_base_finish(desc, out);
|
|
}
|
|
|
|
int crypto_sha256_finup(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len, u8 *hash)
|
|
{
|
|
sha256_base_do_update(desc, data, len, sha256_generic_block_fn);
|
|
return sha256_final(desc, hash);
|
|
}
|
|
EXPORT_SYMBOL(crypto_sha256_finup);
|
|
|
|
static struct shash_alg sha256_algs[2] = { {
|
|
.digestsize = SHA256_DIGEST_SIZE,
|
|
.init = sha256_base_init,
|
|
.update = crypto_sha256_update,
|
|
.final = sha256_final,
|
|
.finup = crypto_sha256_finup,
|
|
.descsize = sizeof(struct sha256_state),
|
|
.base = {
|
|
.cra_name = "sha256",
|
|
.cra_driver_name= "sha256-generic",
|
|
.cra_priority = 100,
|
|
.cra_blocksize = SHA256_BLOCK_SIZE,
|
|
.cra_module = THIS_MODULE,
|
|
}
|
|
}, {
|
|
.digestsize = SHA224_DIGEST_SIZE,
|
|
.init = sha224_base_init,
|
|
.update = crypto_sha256_update,
|
|
.final = sha256_final,
|
|
.finup = crypto_sha256_finup,
|
|
.descsize = sizeof(struct sha256_state),
|
|
.base = {
|
|
.cra_name = "sha224",
|
|
.cra_driver_name= "sha224-generic",
|
|
.cra_priority = 100,
|
|
.cra_blocksize = SHA224_BLOCK_SIZE,
|
|
.cra_module = THIS_MODULE,
|
|
}
|
|
} };
|
|
|
|
static int __init sha256_generic_mod_init(void)
|
|
{
|
|
return crypto_register_shashes(sha256_algs, ARRAY_SIZE(sha256_algs));
|
|
}
|
|
|
|
static void __exit sha256_generic_mod_fini(void)
|
|
{
|
|
crypto_unregister_shashes(sha256_algs, ARRAY_SIZE(sha256_algs));
|
|
}
|
|
|
|
subsys_initcall(sha256_generic_mod_init);
|
|
module_exit(sha256_generic_mod_fini);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm");
|
|
|
|
MODULE_ALIAS_CRYPTO("sha224");
|
|
MODULE_ALIAS_CRYPTO("sha224-generic");
|
|
MODULE_ALIAS_CRYPTO("sha256");
|
|
MODULE_ALIAS_CRYPTO("sha256-generic");
|