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crypto: keys - Revert "convert public key to akcipher api"

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This needs to go through the security tree so I'm reverting the
patches for now.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2016-02-09 16:18:01 +08:00
parent ed1afac914
commit f75516a815
14 changed files with 314 additions and 137 deletions
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48
include/crypto/public_key.h
View file

@ -14,6 +14,7 @@
#ifndef _LINUX_PUBLIC_KEY_H
#define _LINUX_PUBLIC_KEY_H
#include <linux/mpi.h>
#include <crypto/hash_info.h>
enum pkey_algo {
@ -23,6 +24,7 @@ enum pkey_algo {
};
extern const char *const pkey_algo_name[PKEY_ALGO__LAST];
extern const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST];
/* asymmetric key implementation supports only up to SHA224 */
#define PKEY_HASH__LAST (HASH_ALGO_SHA224 + 1)
@ -57,10 +59,31 @@ extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR];
* part.
*/
struct public_key {
void *key;
u32 keylen;
const struct public_key_algorithm *algo;
u8 capabilities;
#define PKEY_CAN_ENCRYPT 0x01
#define PKEY_CAN_DECRYPT 0x02
#define PKEY_CAN_SIGN 0x04
#define PKEY_CAN_VERIFY 0x08
enum pkey_algo pkey_algo : 8;
enum pkey_id_type id_type : 8;
union {
MPI mpi[5];
struct {
MPI p; /* DSA prime */
MPI q; /* DSA group order */
MPI g; /* DSA group generator */
MPI y; /* DSA public-key value = g^x mod p */
MPI x; /* DSA secret exponent (if present) */
} dsa;
struct {
MPI n; /* RSA public modulus */
MPI e; /* RSA public encryption exponent */
MPI d; /* RSA secret encryption exponent (if present) */
MPI p; /* RSA secret prime (if present) */
MPI q; /* RSA secret prime (if present) */
} rsa;
};
};
extern void public_key_destroy(void *payload);
@ -69,15 +92,23 @@ extern void public_key_destroy(void *payload);
* Public key cryptography signature data
*/
struct public_key_signature {
u8 *s; /* Signature */
u32 s_size; /* Number of bytes in signature */
u8 *digest;
u8 digest_size; /* Number of bytes in digest */
u8 digest_size; /* Number of bytes in digest */
u8 nr_mpi; /* Occupancy of mpi[] */
enum pkey_algo pkey_algo : 8;
enum hash_algo pkey_hash_algo : 8;
union {
MPI mpi[2];
struct {
MPI s; /* m^d mod n */
} rsa;
struct {
MPI r;
MPI s;
} dsa;
};
};
extern struct asymmetric_key_subtype public_key_subtype;
struct key;
extern int verify_signature(const struct key *key,
const struct public_key_signature *sig);
@ -88,9 +119,4 @@ extern struct key *x509_request_asymmetric_key(struct key *keyring,
const struct asymmetric_key_id *skid,
bool partial);
int public_key_verify_signature(const struct public_key *pkey,
const struct public_key_signature *sig);
int rsa_verify_signature(const struct public_key *pkey,
const struct public_key_signature *sig);
#endif /* _LINUX_PUBLIC_KEY_H */