5 /* nettle, low-level cryptographics library
7 * Copyright (C) 2002 Niels Möller
9 * The nettle library is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or (at your
12 * option) any later version.
14 * The nettle library is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17 * License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with the nettle library; see the file COPYING.LIB. If not, write to
21 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
48 progress(void *ctx, int c)
56 main(int argc, char **argv)
58 struct yarrow256_ctx yarrow;
59 struct rsa_public_key pub;
60 struct rsa_private_key priv;
63 char *pub_name = NULL;
64 const char *priv_name = NULL;
65 const char *random_name = NULL;
67 struct nettle_buffer pub_buffer;
68 struct nettle_buffer priv_buffer;
70 while ( (c = getopt(argc, argv, "o:r:")) != -1)
83 werror("Unknown option `-%c'.\n", optopt);
85 werror("Unknown option character `\\x%x'.\n",
94 werror("No filename provided.\n");
98 pub_name = xalloc(strlen(priv_name) + 5);
99 sprintf(pub_name, "%s.pub", priv_name);
101 /* NOTE: No sources */
102 yarrow256_init(&yarrow, 0, NULL);
104 /* Read some data to seed the generator */
105 if (!simple_random(&yarrow, random_name))
107 werror("Initialization of randomness generator failed.\n");
111 rsa_public_key_init(&pub);
112 rsa_private_key_init(&priv);
114 if (!rsa_generate_keypair
116 (void *) &yarrow, (nettle_random_func *) yarrow256_random,
120 werror("Key generation failed.\n");
124 nettle_buffer_init(&priv_buffer);
125 nettle_buffer_init(&pub_buffer);
127 if (!rsa_keypair_to_sexp(&pub_buffer, "rsa-pkcs1-sha1", &pub, NULL))
129 werror("Formatting public key failed.\n");
133 if (!rsa_keypair_to_sexp(&priv_buffer, "rsa-pkcs1-sha1", &pub, &priv))
135 werror("Formatting private key failed.\n");
139 if (!write_file(pub_name, pub_buffer.size, pub_buffer.contents))
141 werror("Failed to write public key: %s\n",
146 /* NOTE: This doesn't set up paranoid access restrictions on the
147 * private key file, like a serious key generation tool would do. */
148 if (!write_file(priv_name, priv_buffer.size, priv_buffer.contents))
150 werror("Failed to write private key: %s\n",