diff options
Diffstat (limited to 'algo.h')
| -rw-r--r-- | algo.h | 40 |
1 files changed, 33 insertions, 7 deletions
@@ -35,7 +35,7 @@ struct Algo_Type { - unsigned char *name; /* identifying name */ + const unsigned char *name; /* identifying name */ char val; /* a value for this cipher, or -1 for invalid */ const void *data; /* algorithm specific data */ char usable; /* whether we can use this algorithm */ @@ -59,8 +59,8 @@ extern const struct dropbear_hash dropbear_nohash; struct dropbear_cipher { const struct ltc_cipher_descriptor *cipherdesc; - unsigned long keysize; - unsigned char blocksize; + const unsigned long keysize; + const unsigned char blocksize; }; struct dropbear_cipher_mode { @@ -74,12 +74,27 @@ struct dropbear_cipher_mode { }; struct dropbear_hash { - const struct ltc_hash_descriptor *hashdesc; - unsigned long keysize; - unsigned char hashsize; + const struct ltc_hash_descriptor *hash_desc; + const unsigned long keysize; + // hashsize may be truncated from the size returned by hash_desc, + // eg sha1-96 + const unsigned char hashsize; +}; + +struct dropbear_kex { + // "normal" DH KEX + const unsigned char *dh_p_bytes; + const int dh_p_len; + + // elliptic curve DH KEX +#ifdef DROPBEAR_ECDH + const struct dropbear_ecc_curve *ecc_curve; +#endif + + // both + const struct ltc_hash_descriptor *hash_desc; }; -void crypto_init(); int have_algo(char* algo, size_t algolen, algo_type algos[]); void buf_put_algolist(buffer * buf, algo_type localalgos[]); @@ -102,5 +117,16 @@ int check_user_algos(const char* user_algo_list, algo_type * algos, char * algolist_string(algo_type algos[]); #endif +#ifdef DROPBEAR_ECDH +#define IS_NORMAL_DH(algo) ((algo)->dh_p_bytes != NULL) +#else +#define IS_NORMAL_DH(algo) 1 +#endif + +enum { + DROPBEAR_COMP_NONE, + DROPBEAR_COMP_ZLIB, + DROPBEAR_COMP_ZLIB_DELAY, +}; #endif /* _ALGO_H_ */ |