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#include <stdio.h>
#include <string.h>
#include <stddef.h>
#include <sys/types.h>
#include <freeswan.h>
#include "constants.h"
#include "defs.h"
#include "log.h"
#include "libblowfish/blowfish.h"
#include "alg_info.h"
#include "ike_alg.h"
#define BLOWFISH_CBC_BLOCK_SIZE 8 /* block size */
#define BLOWFISH_KEY_MIN_LEN 128
#define BLOWFISH_KEY_MAX_LEN 448
static void
do_blowfish(u_int8_t *buf, size_t buf_len, u_int8_t *key, size_t key_size, u_int8_t *iv, bool enc)
{
BF_KEY bf_ctx;
BF_set_key(&bf_ctx, key_size , key);
BF_cbc_encrypt(buf, buf, buf_len, &bf_ctx, iv, enc);
}
struct encrypt_desc algo_blowfish =
{
algo_type: IKE_ALG_ENCRYPT,
algo_id: OAKLEY_BLOWFISH_CBC,
algo_next: NULL,
enc_ctxsize: sizeof(BF_KEY),
enc_blocksize: BLOWFISH_CBC_BLOCK_SIZE,
keyminlen: BLOWFISH_KEY_MIN_LEN,
keydeflen: BLOWFISH_KEY_MIN_LEN,
keymaxlen: BLOWFISH_KEY_MAX_LEN,
do_crypt: do_blowfish,
};
int ike_alg_blowfish_init(void);
int
ike_alg_blowfish_init(void)
{
int ret = ike_alg_register_enc(&algo_blowfish);
return ret;
}
/*
IKE_ALG_INIT_NAME: ike_alg_blowfish_init
*/
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