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KEYS: Move the algorithm pointer array from x509 to public_key.c 

Move the public-key algorithm pointer array from x509_public_key.c to
public_key.c as it isn't X.509 specific.

Note that to make this configure correctly, the public key part must be
dependent on the RSA module rather than the other way round.  This needs a
further patch to make use of the crypto module loading stuff rather than using
a fixed table.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
This commit is contained in:
David Howells 2013-08-30 16:15:18 +01:00
parent 9abc4e66eb
commit 206ce59a10
4 changed files with 11 additions and 11 deletions
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2
crypto/asymmetric_keys/Kconfig
View File

@ -12,6 +12,7 @@ if ASYMMETRIC_KEY_TYPE
config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
tristate "Asymmetric public-key crypto algorithm subtype"
select MPILIB
select PUBLIC_KEY_ALGO_RSA
help
This option provides support for asymmetric public key type handling.
If signature generation and/or verification are to be used,
@ -20,7 +21,6 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
config PUBLIC_KEY_ALGO_RSA
tristate "RSA public-key algorithm"
depends on ASYMMETRIC_PUBLIC_KEY_SUBTYPE
select MPILIB_EXTRA
help
This option enables support for the RSA algorithm (PKCS#1, RFC3447).

8
crypto/asymmetric_keys/public_key.c
View File

@ -28,6 +28,14 @@ const char *const pkey_algo_name[PKEY_ALGO__LAST] = {
};
EXPORT_SYMBOL_GPL(pkey_algo_name);
const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST] = {
#if defined(CONFIG_PUBLIC_KEY_ALGO_RSA) || \
defined(CONFIG_PUBLIC_KEY_ALGO_RSA_MODULE)
[PKEY_ALGO_RSA] = &RSA_public_key_algorithm,
#endif
};
EXPORT_SYMBOL_GPL(pkey_algo);
const char *const pkey_hash_algo_name[PKEY_HASH__LAST] = {
[PKEY_HASH_MD4] = "md4",
[PKEY_HASH_MD5] = "md5",

11
crypto/asymmetric_keys/x509_public_key.c
View File

@ -23,15 +23,6 @@
#include "public_key.h"
#include "x509_parser.h"
static const
struct public_key_algorithm *x509_public_key_algorithms[PKEY_ALGO__LAST] = {
[PKEY_ALGO_DSA] = NULL,
#if defined(CONFIG_PUBLIC_KEY_ALGO_RSA) || \
defined(CONFIG_PUBLIC_KEY_ALGO_RSA_MODULE)
[PKEY_ALGO_RSA] = &RSA_public_key_algorithm,
#endif
};
/*
* Check the signature on a certificate using the provided public key
*/
@ -174,7 +165,7 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
goto error_free_cert;
}
cert->pub->algo = x509_public_key_algorithms[cert->pkey_algo];
cert->pub->algo = pkey_algo[cert->pkey_algo];
cert->pub->id_type = PKEY_ID_X509;
/* Check the signature on the key */

1
include/crypto/public_key.h
View File

@ -23,6 +23,7 @@ enum pkey_algo {
};
extern const char *const pkey_algo_name[PKEY_ALGO__LAST];
extern const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST];
enum pkey_hash_algo {
PKEY_HASH_MD4,