diff options
Diffstat (limited to 'src/pluto/crypto.h')
| -rw-r--r-- | src/pluto/crypto.h | 91 |
1 files changed, 20 insertions, 71 deletions
diff --git a/src/pluto/crypto.h b/src/pluto/crypto.h index e773d86df..06c4e1d1a 100644 --- a/src/pluto/crypto.h +++ b/src/pluto/crypto.h @@ -10,31 +10,20 @@ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. - * - * RCSID $Id: crypto.h 3252 2007-10-06 21:24:50Z andreas $ */ -#include <gmp.h> /* GNU MP library */ +#include <crypto/crypters/crypter.h> +#include <crypto/signers/signer.h> +#include <crypto/hashers/hasher.h> +#include <crypto/prfs/prf.h> +#include <credentials/keys/public_key.h> -#include "libsha2/sha2.h" #include "ike_alg.h" extern void init_crypto(void); +extern void free_crypto(void); -/* Oakley group descriptions */ - -extern MP_INT groupgenerator; /* MODP group generator (2) */ - -struct oakley_group_desc { - u_int16_t group; - MP_INT *modulus; - size_t bytes; -}; - -extern const struct oakley_group_desc unset_group; /* magic signifier */ -extern const struct oakley_group_desc *lookup_group(u_int16_t group); -#define OAKLEY_GROUP_SIZE 7 -extern const struct oakley_group_desc oakley_group[OAKLEY_GROUP_SIZE]; +extern const struct dh_desc unset_group; /* magic signifier */ /* unification of cryptographic encoding/decoding algorithms * The IV is taken from and returned to st->st_new_iv. @@ -46,63 +35,23 @@ extern const struct oakley_group_desc oakley_group[OAKLEY_GROUP_SIZE]; #define MAX_OAKLEY_KEY_LEN0 (3 * DES_CBC_BLOCK_SIZE) #define MAX_OAKLEY_KEY_LEN (256/BITS_PER_BYTE) -struct state; /* forward declaration, dammit */ +struct state; /* forward declaration, dammit */ -void crypto_cbc_encrypt(const struct encrypt_desc *e, bool enc, u_int8_t *buf, size_t size, struct state *st); - -#define update_iv(st) memcpy((st)->st_iv, (st)->st_new_iv \ - , (st)->st_iv_len = (st)->st_new_iv_len) +#define update_iv(st) memcpy((st)->st_iv, (st)->st_new_iv \ + , (st)->st_iv_len = (st)->st_new_iv_len) #define set_ph1_iv(st, iv) \ - passert((st)->st_ph1_iv_len <= sizeof((st)->st_ph1_iv)); \ - memcpy((st)->st_ph1_iv, (iv), (st)->st_ph1_iv_len); + passert((st)->st_ph1_iv_len <= sizeof((st)->st_ph1_iv)); \ + memcpy((st)->st_ph1_iv, (iv), (st)->st_ph1_iv_len); /* unification of cryptographic hashing mechanisms */ -#ifndef NO_HASH_CTX -union hash_ctx { - MD5_CTX ctx_md5; - SHA1_CTX ctx_sha1; - sha256_context ctx_sha256; - sha512_context ctx_sha512; - }; - -/* HMAC package - * Note that hmac_ctx can be (and is) copied since there are - * no persistent pointers into it. - */ - -struct hmac_ctx { - const struct hash_desc *h; /* underlying hash function */ - size_t hmac_digest_size; /* copy of h->hash_digest_size */ - union hash_ctx hash_ctx; /* ctx for hash function */ - u_char buf1[MAX_HASH_BLOCK_SIZE]; - u_char buf2[MAX_HASH_BLOCK_SIZE]; - }; - -extern void hmac_init( - struct hmac_ctx *ctx, - const struct hash_desc *h, - const u_char *key, - size_t key_len); - -#define hmac_init_chunk(ctx, h, ch) hmac_init((ctx), (h), (ch).ptr, (ch).len) - -extern void hmac_reinit(struct hmac_ctx *ctx); /* saves recreating pads */ - -extern void hmac_update( - struct hmac_ctx *ctx, - const u_char *data, - size_t data_len); - -#define hmac_update_chunk(ctx, ch) hmac_update((ctx), (ch).ptr, (ch).len) - -extern void hmac_final(u_char *output, struct hmac_ctx *ctx); +extern encryption_algorithm_t oakley_to_encryption_algorithm(int alg); +extern hash_algorithm_t oakley_to_hash_algorithm(int alg); +extern pseudo_random_function_t oakley_to_prf(int alg); +extern signature_scheme_t oakley_to_signature_scheme(int method); +extern int oakley_from_encryption_algorithm(encryption_algorithm_t alg); +extern int oakley_from_integrity_algorithm(integrity_algorithm_t alg); +extern int esp_from_encryption_algorithm(encryption_algorithm_t alg); +extern int esp_from_integrity_algorithm(integrity_algorithm_t alg); -#define hmac_final_chunk(ch, name, ctx) { \ - pfreeany((ch).ptr); \ - (ch).len = (ctx)->hmac_digest_size; \ - (ch).ptr = alloc_bytes((ch).len, name); \ - hmac_final((ch).ptr, (ctx)); \ - } -#endif |