Gecko [ paroquia-rio-de-mouro.pt ]

Name	Size	Permission	Date
internal	[ DIR ]	drwxr-xr-x	2018-04-05 07:11
ablk_helper.h	734 B	-rw-r--r--	2016-01-11 00:01
aead.h	18.71 KB	-rw-r--r--	2016-01-11 00:01
aes.h	1019 B	-rw-r--r--	2016-01-11 00:01
akcipher.h	11.52 KB	-rw-r--r--	2016-01-11 00:01
algapi.h	10.31 KB	-rw-r--r--	2016-01-11 00:01
authenc.h	845 B	-rw-r--r--	2016-01-11 00:01
b128ops.h	2.41 KB	-rw-r--r--	2016-01-11 00:01
blowfish.h	376 B	-rw-r--r--	2016-01-11 00:01
cast5.h	551 B	-rw-r--r--	2016-01-11 00:01
cast6.h	597 B	-rw-r--r--	2016-01-11 00:01
cast_common.h	193 B	-rw-r--r--	2016-01-11 00:01
chacha20.h	595 B	-rw-r--r--	2016-01-11 00:01
compress.h	4.03 KB	-rw-r--r--	2016-01-11 00:01
cryptd.h	1.84 KB	-rw-r--r--	2016-01-11 00:01
crypto_wq.h	122 B	-rw-r--r--	2016-01-11 00:01
ctr.h	524 B	-rw-r--r--	2016-01-11 00:01
des.h	503 B	-rw-r--r--	2016-01-11 00:01
drbg.h	8.57 KB	-rw-r--r--	2016-01-11 00:01
gf128mul.h	8.04 KB	-rw-r--r--	2016-01-11 00:01
ghash.h	342 B	-rw-r--r--	2018-04-02 18:07
hash.h	29.56 KB	-rw-r--r--	2018-04-02 18:07
hash_info.h	1.13 KB	-rw-r--r--	2018-04-02 18:07
if_alg.h	2.46 KB	-rw-r--r--	2018-04-02 18:07
lrw.h	1.18 KB	-rw-r--r--	2016-01-11 00:01
mcryptd.h	2.33 KB	-rw-r--r--	2018-04-02 18:07
md5.h	401 B	-rw-r--r--	2016-01-11 00:01
null.h	303 B	-rw-r--r--	2016-01-11 00:01
padlock.h	649 B	-rw-r--r--	2016-01-11 00:01
pcrypt.h	1.4 KB	-rw-r--r--	2016-01-11 00:01
pkcs7.h	1.2 KB	-rw-r--r--	2016-01-11 00:01
poly1305.h	977 B	-rw-r--r--	2016-01-11 00:01
public_key.h	2.79 KB	-rw-r--r--	2018-04-02 18:07
rng.h	6.59 KB	-rw-r--r--	2016-01-11 00:01
scatterwalk.h	2.91 KB	-rw-r--r--	2016-01-11 00:01
serpent.h	673 B	-rw-r--r--	2016-01-11 00:01
sha.h	2.66 KB	-rw-r--r--	2016-01-11 00:01
sha1_base.h	2.47 KB	-rw-r--r--	2016-01-11 00:01
sha256_base.h	3.03 KB	-rw-r--r--	2016-01-11 00:01
sha512_base.h	3.19 KB	-rw-r--r--	2016-01-11 00:01
skcipher.h	15.63 KB	-rw-r--r--	2018-04-02 18:07
twofish.h	716 B	-rw-r--r--	2016-01-11 00:01
vmac.h	2.12 KB	-rw-r--r--	2016-01-11 00:01
xts.h	1.19 KB	-rw-r--r--	2018-04-02 18:07

Rename

/*
 * sha1_base.h - core logic for SHA-1 implementations
 *
 * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <crypto/internal/hash.h>
#include <crypto/sha.h>
#include <linux/crypto.h>
#include <linux/module.h>

#include <asm/unaligned.h>

typedef void (sha1_block_fn)(struct sha1_state *sst, u8 const *src, int blocks);

static inline int sha1_base_init(struct shash_desc *desc)
{
	struct sha1_state *sctx = shash_desc_ctx(desc);

sctx->state[0] = SHA1_H0;
	sctx->state[1] = SHA1_H1;
	sctx->state[2] = SHA1_H2;
	sctx->state[3] = SHA1_H3;
	sctx->state[4] = SHA1_H4;
	sctx->count = 0;

return 0;
}

static inline int sha1_base_do_update(struct shash_desc *desc,
				      const u8 *data,
				      unsigned int len,
				      sha1_block_fn *block_fn)
{
	struct sha1_state *sctx = shash_desc_ctx(desc);
	unsigned int partial = sctx->count % SHA1_BLOCK_SIZE;

sctx->count += len;

if (unlikely((partial + len) >= SHA1_BLOCK_SIZE)) {
		int blocks;

if (partial) {
			int p = SHA1_BLOCK_SIZE - partial;

memcpy(sctx->buffer + partial, data, p);
			data += p;
			len -= p;

block_fn(sctx, sctx->buffer, 1);
		}

blocks = len / SHA1_BLOCK_SIZE;
		len %= SHA1_BLOCK_SIZE;

if (blocks) {
			block_fn(sctx, data, blocks);
			data += blocks * SHA1_BLOCK_SIZE;
		}
		partial = 0;
	}
	if (len)
		memcpy(sctx->buffer + partial, data, len);

return 0;
}

static inline int sha1_base_do_finalize(struct shash_desc *desc,
					sha1_block_fn *block_fn)
{
	const int bit_offset = SHA1_BLOCK_SIZE - sizeof(__be64);
	struct sha1_state *sctx = shash_desc_ctx(desc);
	__be64 *bits = (__be64 *)(sctx->buffer + bit_offset);
	unsigned int partial = sctx->count % SHA1_BLOCK_SIZE;

sctx->buffer[partial++] = 0x80;
	if (partial > bit_offset) {
		memset(sctx->buffer + partial, 0x0, SHA1_BLOCK_SIZE - partial);
		partial = 0;

block_fn(sctx, sctx->buffer, 1);
	}

memset(sctx->buffer + partial, 0x0, bit_offset - partial);
	*bits = cpu_to_be64(sctx->count << 3);
	block_fn(sctx, sctx->buffer, 1);

return 0;
}

static inline int sha1_base_finish(struct shash_desc *desc, u8 *out)
{
	struct sha1_state *sctx = shash_desc_ctx(desc);
	__be32 *digest = (__be32 *)out;
	int i;

for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(__be32); i++)
		put_unaligned_be32(sctx->state[i], digest++);

*sctx = (struct sha1_state){};
	return 0;
}