diff options
Diffstat (limited to 'include/crypto/public_key.h')
| -rw-r--r-- | include/crypto/public_key.h | 48 |
1 files changed, 37 insertions, 11 deletions
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h index a1693ed77be6..cc2516df0efa 100644 --- a/include/crypto/public_key.h +++ b/include/crypto/public_key.h @@ -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 */ |