diff options
Diffstat (limited to 'src/keys.c')
| -rw-r--r-- | src/keys.c | 193 |
1 files changed, 0 insertions, 193 deletions
@@ -44,199 +44,6 @@ * @{ */ -/** - * @brief Make a public_key object out of a private_key object. - * - * @param[in] prv The private key to generate the public key. - * - * @returns The generated public key, NULL on error. - * - * @see publickey_to_string() - */ -ssh_public_key publickey_from_privatekey(ssh_private_key prv) { - ssh_public_key key = NULL; -#ifdef HAVE_LIBGCRYPT - gcry_sexp_t sexp; - const char *tmp = NULL; - size_t size; - ssh_string p = NULL; - ssh_string q = NULL; - ssh_string g = NULL; - ssh_string y = NULL; - ssh_string e = NULL; - ssh_string n = NULL; -#endif /* HAVE_LIBGCRYPT */ - - key = malloc(sizeof(struct ssh_public_key_struct)); - if (key == NULL) { - return NULL; - } - ZERO_STRUCTP(key); - key->type = prv->type; - switch(key->type) { - case SSH_KEYTYPE_DSS: -#ifdef HAVE_LIBGCRYPT - sexp = gcry_sexp_find_token(prv->dsa_priv, "p", 0); - if (sexp == NULL) { - goto error; - } - tmp = gcry_sexp_nth_data(sexp, 1, &size); - p = ssh_string_new(size); - if (p == NULL) { - goto error; - } - ssh_string_fill(p,(char *) tmp, size); - gcry_sexp_release(sexp); - - sexp = gcry_sexp_find_token(prv->dsa_priv,"q",0); - if (sexp == NULL) { - goto error; - } - tmp = gcry_sexp_nth_data(sexp,1,&size); - q = ssh_string_new(size); - if (q == NULL) { - goto error; - } - ssh_string_fill(q,(char *) tmp,size); - gcry_sexp_release(sexp); - - sexp = gcry_sexp_find_token(prv->dsa_priv, "g", 0); - if (sexp == NULL) { - goto error; - } - tmp = gcry_sexp_nth_data(sexp,1,&size); - g = ssh_string_new(size); - if (g == NULL) { - goto error; - } - ssh_string_fill(g,(char *) tmp,size); - gcry_sexp_release(sexp); - - sexp = gcry_sexp_find_token(prv->dsa_priv,"y",0); - if (sexp == NULL) { - goto error; - } - tmp = gcry_sexp_nth_data(sexp,1,&size); - y = ssh_string_new(size); - if (y == NULL) { - goto error; - } - ssh_string_fill(y,(char *) tmp,size); - gcry_sexp_release(sexp); - - gcry_sexp_build(&key->dsa_pub, NULL, - "(public-key(dsa(p %b)(q %b)(g %b)(y %b)))", - ssh_string_len(p), ssh_string_data(p), - ssh_string_len(q), ssh_string_data(q), - ssh_string_len(g), ssh_string_data(g), - ssh_string_len(y), ssh_string_data(y)); - - ssh_string_burn(p); - ssh_string_free(p); - ssh_string_burn(q); - ssh_string_free(q); - ssh_string_burn(g); - ssh_string_free(g); - ssh_string_burn(y); - ssh_string_free(y); -#elif defined HAVE_LIBCRYPTO - key->dsa_pub = DSA_new(); - if (key->dsa_pub == NULL) { - goto error; - } - key->dsa_pub->p = BN_dup(prv->dsa_priv->p); - key->dsa_pub->q = BN_dup(prv->dsa_priv->q); - key->dsa_pub->g = BN_dup(prv->dsa_priv->g); - key->dsa_pub->pub_key = BN_dup(prv->dsa_priv->pub_key); - if (key->dsa_pub->p == NULL || - key->dsa_pub->q == NULL || - key->dsa_pub->g == NULL || - key->dsa_pub->pub_key == NULL) { - goto error; - } -#endif /* HAVE_LIBCRYPTO */ - break; - case SSH_KEYTYPE_RSA: - case SSH_KEYTYPE_RSA1: -#ifdef HAVE_LIBGCRYPT - sexp = gcry_sexp_find_token(prv->rsa_priv, "n", 0); - if (sexp == NULL) { - goto error; - } - tmp = gcry_sexp_nth_data(sexp, 1, &size); - n = ssh_string_new(size); - if (n == NULL) { - goto error; - } - ssh_string_fill(n, (char *) tmp, size); - gcry_sexp_release(sexp); - - sexp = gcry_sexp_find_token(prv->rsa_priv, "e", 0); - if (sexp == NULL) { - goto error; - } - tmp = gcry_sexp_nth_data(sexp, 1, &size); - e = ssh_string_new(size); - if (e == NULL) { - goto error; - } - ssh_string_fill(e, (char *) tmp, size); - gcry_sexp_release(sexp); - - gcry_sexp_build(&key->rsa_pub, NULL, - "(public-key(rsa(n %b)(e %b)))", - ssh_string_len(n), ssh_string_data(n), - ssh_string_len(e), ssh_string_data(e)); - if (key->rsa_pub == NULL) { - goto error; - } - - ssh_string_burn(e); - ssh_string_free(e); - ssh_string_burn(n); - ssh_string_free(n); -#elif defined HAVE_LIBCRYPTO - key->rsa_pub = RSA_new(); - if (key->rsa_pub == NULL) { - goto error; - } - key->rsa_pub->e = BN_dup(prv->rsa_priv->e); - key->rsa_pub->n = BN_dup(prv->rsa_priv->n); - if (key->rsa_pub->e == NULL || - key->rsa_pub->n == NULL) { - goto error; - } -#endif - break; - default: - publickey_free(key); - return NULL; - } - key->type_c = ssh_type_to_char(prv->type); - - return key; -error: -#ifdef HAVE_LIBGCRYPT - gcry_sexp_release(sexp); - ssh_string_burn(p); - ssh_string_free(p); - ssh_string_burn(q); - ssh_string_free(q); - ssh_string_burn(g); - ssh_string_free(g); - ssh_string_burn(y); - ssh_string_free(y); - - ssh_string_burn(e); - ssh_string_free(e); - ssh_string_burn(n); - ssh_string_free(n); -#endif - publickey_free(key); - - return NULL; -} - /** @} */ /* vim: set ts=4 sw=4 et cindent: */ |