Release 4.15 crypto/sha1_generic.c
/*
* Cryptographic API.
*
* SHA1 Secure Hash Algorithm.
*
* Derived from cryptoapi implementation, adapted for in-place
* scatterlist interface.
*
* Copyright (c) Alan Smithee.
* Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
* Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
*
* 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.
*
*/
#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/cryptohash.h>
#include <linux/types.h>
#include <crypto/sha.h>
#include <crypto/sha1_base.h>
#include <asm/byteorder.h>
const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE] = {
0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d,
0x32, 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90,
0xaf, 0xd8, 0x07, 0x09
};
EXPORT_SYMBOL_GPL(sha1_zero_message_hash);
static void sha1_generic_block_fn(struct sha1_state *sst, u8 const *src,
int blocks)
{
u32 temp[SHA_WORKSPACE_WORDS];
while (blocks--) {
sha_transform(sst->state, src, temp);
src += SHA1_BLOCK_SIZE;
}
memzero_explicit(temp, sizeof(temp));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Morris | 18 | 31.58% | 3 | 30.00% |
| Matt Mackall | 12 | 21.05% | 1 | 10.00% |
| Nico Pitre | 12 | 21.05% | 1 | 10.00% |
| Ard Biesheuvel | 11 | 19.30% | 1 | 10.00% |
| Herbert Xu | 2 | 3.51% | 2 | 20.00% |
| Daniel Borkmann | 1 | 1.75% | 1 | 10.00% |
| Mandeep Singh Baines | 1 | 1.75% | 1 | 10.00% |
| Total | 57 | 100.00% | 10 | 100.00% |
int crypto_sha1_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha1_base_do_update(desc, data, len, sha1_generic_block_fn);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ard Biesheuvel | 24 | 77.42% | 1 | 33.33% |
| James Morris | 6 | 19.35% | 1 | 33.33% |
| Adrian-Ken Rueegsegger | 1 | 3.23% | 1 | 33.33% |
| Total | 31 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(crypto_sha1_update);
static int sha1_final(struct shash_desc *desc, u8 *out)
{
sha1_base_do_finalize(desc, sha1_generic_block_fn);
return sha1_base_finish(desc, out);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Morris | 17 | 56.67% | 2 | 40.00% |
| Adrian-Ken Rueegsegger | 6 | 20.00% | 1 | 20.00% |
| Ard Biesheuvel | 5 | 16.67% | 1 | 20.00% |
| Herbert Xu | 2 | 6.67% | 1 | 20.00% |
| Total | 30 | 100.00% | 5 | 100.00% |
int crypto_sha1_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
sha1_base_do_update(desc, data, len, sha1_generic_block_fn);
return sha1_final(desc, out);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Herbert Xu | 24 | 57.14% | 1 | 50.00% |
| Ard Biesheuvel | 18 | 42.86% | 1 | 50.00% |
| Total | 42 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(crypto_sha1_finup);
static struct shash_alg alg = {
.digestsize = SHA1_DIGEST_SIZE,
.init = sha1_base_init,
.update = crypto_sha1_update,
.final = sha1_final,
.finup = crypto_sha1_finup,
.descsize = sizeof(struct sha1_state),
.base = {
.cra_name = "sha1",
.cra_driver_name= "sha1-generic",
.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = SHA1_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
};
static int __init sha1_generic_mod_init(void)
{
return crypto_register_shash(&alg);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Morris | 14 | 87.50% | 1 | 33.33% |
| Adrian-Ken Rueegsegger | 1 | 6.25% | 1 | 33.33% |
| Kamalesh Babulal | 1 | 6.25% | 1 | 33.33% |
| Total | 16 | 100.00% | 3 | 100.00% |
static void __exit sha1_generic_mod_fini(void)
{
crypto_unregister_shash(&alg);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Morris | 13 | 86.67% | 1 | 33.33% |
| Kamalesh Babulal | 1 | 6.67% | 1 | 33.33% |
| Adrian-Ken Rueegsegger | 1 | 6.67% | 1 | 33.33% |
| Total | 15 | 100.00% | 3 | 100.00% |
module_init(sha1_generic_mod_init);
module_exit(sha1_generic_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
MODULE_ALIAS_CRYPTO("sha1");
MODULE_ALIAS_CRYPTO("sha1-generic");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Morris | 132 | 34.38% | 3 | 15.00% |
| Ard Biesheuvel | 69 | 17.97% | 1 | 5.00% |
| Corentin Labbe | 54 | 14.06% | 1 | 5.00% |
| Herbert Xu | 38 | 9.90% | 3 | 15.00% |
| Adrian-Ken Rueegsegger | 34 | 8.85% | 1 | 5.00% |
| Matt Mackall | 17 | 4.43% | 1 | 5.00% |
| Nico Pitre | 12 | 3.12% | 1 | 5.00% |
| Mathias Krause | 11 | 2.86% | 2 | 10.00% |
| Michal Ludvig | 6 | 1.56% | 1 | 5.00% |
| Kamalesh Babulal | 4 | 1.04% | 1 | 5.00% |
| Jan Glauber | 3 | 0.78% | 1 | 5.00% |
| Mandeep Singh Baines | 1 | 0.26% | 1 | 5.00% |
| Kees Cook | 1 | 0.26% | 1 | 5.00% |
| Sebastian Andrzej Siewior | 1 | 0.26% | 1 | 5.00% |
| Daniel Borkmann | 1 | 0.26% | 1 | 5.00% |
| Total | 384 | 100.00% | 20 | 100.00% |
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