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crypto: provide single place for hash algo information

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This patch provides a single place for information about hash algorithms,
such as hash sizes and kernel driver names, which will be used by IMA
and the public key code.

Changelog:
- Fix sparse and checkpatch warnings
- Move hash algo enums to uapi for userspace signing functions.

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Dmitry Kasatkin 2013-05-06 15:40:01 +03:00 committed by Mimi Zohar
parent 08de59eb14
commit ee08997fee
5 changed files with 137 additions and 0 deletions
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3
crypto/Kconfig
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@ -1386,6 +1386,9 @@ config CRYPTO_USER_API_SKCIPHER
This option enables the user-spaces interface for symmetric
key cipher algorithms.
config CRYPTO_HASH_INFO
bool
source "drivers/crypto/Kconfig"
source crypto/asymmetric_keys/Kconfig

1
crypto/Makefile
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@ -104,3 +104,4 @@ obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o
obj-$(CONFIG_XOR_BLOCKS) += xor.o
obj-$(CONFIG_ASYNC_CORE) += async_tx/
obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/
obj-$(CONFIG_CRYPTO_HASH_INFO) += hash_info.o

56
crypto/hash_info.c Normal file
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@ -0,0 +1,56 @@
/*
* Hash Info: Hash algorithms information
*
* Copyright (c) 2013 Dmitry Kasatkin <d.kasatkin@samsung.com>
*
* 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 <linux/export.h>
#include <crypto/hash_info.h>
const char *const hash_algo_name[HASH_ALGO__LAST] = {
[HASH_ALGO_MD4] = "md4",
[HASH_ALGO_MD5] = "md5",
[HASH_ALGO_SHA1] = "sha1",
[HASH_ALGO_RIPE_MD_160] = "rmd160",
[HASH_ALGO_SHA256] = "sha256",
[HASH_ALGO_SHA384] = "sha384",
[HASH_ALGO_SHA512] = "sha512",
[HASH_ALGO_SHA224] = "sha224",
[HASH_ALGO_RIPE_MD_128] = "rmd128",
[HASH_ALGO_RIPE_MD_256] = "rmd256",
[HASH_ALGO_RIPE_MD_320] = "rmd320",
[HASH_ALGO_WP_256] = "wp256",
[HASH_ALGO_WP_384] = "wp384",
[HASH_ALGO_WP_512] = "wp512",
[HASH_ALGO_TGR_128] = "tgr128",
[HASH_ALGO_TGR_160] = "tgr160",
[HASH_ALGO_TGR_192] = "tgr192",
};
EXPORT_SYMBOL_GPL(hash_algo_name);
const int hash_digest_size[HASH_ALGO__LAST] = {
[HASH_ALGO_MD4] = MD5_DIGEST_SIZE,
[HASH_ALGO_MD5] = MD5_DIGEST_SIZE,
[HASH_ALGO_SHA1] = SHA1_DIGEST_SIZE,
[HASH_ALGO_RIPE_MD_160] = RMD160_DIGEST_SIZE,
[HASH_ALGO_SHA256] = SHA256_DIGEST_SIZE,
[HASH_ALGO_SHA384] = SHA384_DIGEST_SIZE,
[HASH_ALGO_SHA512] = SHA512_DIGEST_SIZE,
[HASH_ALGO_SHA224] = SHA224_DIGEST_SIZE,
[HASH_ALGO_RIPE_MD_128] = RMD128_DIGEST_SIZE,
[HASH_ALGO_RIPE_MD_256] = RMD256_DIGEST_SIZE,
[HASH_ALGO_RIPE_MD_320] = RMD320_DIGEST_SIZE,
[HASH_ALGO_WP_256] = WP256_DIGEST_SIZE,
[HASH_ALGO_WP_384] = WP384_DIGEST_SIZE,
[HASH_ALGO_WP_512] = WP512_DIGEST_SIZE,
[HASH_ALGO_TGR_128] = TGR128_DIGEST_SIZE,
[HASH_ALGO_TGR_160] = TGR160_DIGEST_SIZE,
[HASH_ALGO_TGR_192] = TGR192_DIGEST_SIZE,
};
EXPORT_SYMBOL_GPL(hash_digest_size);

40
include/crypto/hash_info.h Normal file
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@ -0,0 +1,40 @@
/*
* Hash Info: Hash algorithms information
*
* Copyright (c) 2013 Dmitry Kasatkin <d.kasatkin@samsung.com>
*
* 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.
*
*/
#ifndef _CRYPTO_HASH_INFO_H
#define _CRYPTO_HASH_INFO_H
#include <crypto/sha.h>
#include <crypto/md5.h>
#include <uapi/linux/hash_info.h>
/* not defined in include/crypto/ */
#define RMD128_DIGEST_SIZE 16
#define RMD160_DIGEST_SIZE 20
#define RMD256_DIGEST_SIZE 32
#define RMD320_DIGEST_SIZE 40
/* not defined in include/crypto/ */
#define WP512_DIGEST_SIZE 64
#define WP384_DIGEST_SIZE 48
#define WP256_DIGEST_SIZE 32
/* not defined in include/crypto/ */
#define TGR128_DIGEST_SIZE 16
#define TGR160_DIGEST_SIZE 20
#define TGR192_DIGEST_SIZE 24
extern const char *const hash_algo_name[HASH_ALGO__LAST];
extern const int hash_digest_size[HASH_ALGO__LAST];
#endif /* _CRYPTO_HASH_INFO_H */

37
include/uapi/linux/hash_info.h Normal file
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@ -0,0 +1,37 @@
/*
* Hash Info: Hash algorithms information
*
* Copyright (c) 2013 Dmitry Kasatkin <d.kasatkin@samsung.com>
*
* 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.
*
*/
#ifndef _UAPI_LINUX_HASH_INFO_H
#define _UAPI_LINUX_HASH_INFO_H
enum hash_algo {
HASH_ALGO_MD4,
HASH_ALGO_MD5,
HASH_ALGO_SHA1,
HASH_ALGO_RIPE_MD_160,
HASH_ALGO_SHA256,
HASH_ALGO_SHA384,
HASH_ALGO_SHA512,
HASH_ALGO_SHA224,
HASH_ALGO_RIPE_MD_128,
HASH_ALGO_RIPE_MD_256,
HASH_ALGO_RIPE_MD_320,
HASH_ALGO_WP_256,
HASH_ALGO_WP_384,
HASH_ALGO_WP_512,
HASH_ALGO_TGR_128,
HASH_ALGO_TGR_160,
HASH_ALGO_TGR_192,
HASH_ALGO__LAST
};
#endif /* _UAPI_LINUX_HASH_INFO_H */