diff options
Diffstat (limited to 'ecc.c')
| -rw-r--r-- | ecc.c | 22 |
1 files changed, 7 insertions, 15 deletions
@@ -181,17 +181,6 @@ mp_int * dropbear_ecc_shared_secret(ecc_key *public_key, ecc_key *private_key) goto done; } -#if 0 - // XXX - possibly not neccessary tests? - if (ltc_ecc_is_valid_idx(private_key->idx) == 0 || ltc_ecc_is_valid_idx(public_key->idx) == 0) { - goto done; - } - - if (XSTRCMP(private_key->dp->name, public_key->dp->name) != 0) { - goto done; - } -#endif - /* make new point */ result = ltc_ecc_new_point(); if (result == NULL) { @@ -211,20 +200,23 @@ mp_int * dropbear_ecc_shared_secret(ecc_key *public_key, ecc_key *private_key) err = DROPBEAR_SUCCESS; done: if (err == DROPBEAR_SUCCESS) { - shared_secret = prime; - prime = NULL; + shared_secret = m_malloc(sizeof(*shared_secret)); + m_mp_init(shared_secret); + mp_copy(result->x, shared_secret); } if (prime) { mp_clear(prime); m_free(prime); } - ltc_ecc_del_point(result); + if (result) + { + ltc_ecc_del_point(result); + } if (err == DROPBEAR_FAILURE) { dropbear_exit("ECC error"); } - return shared_secret; } |