2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
12 NON_EMPTY_TRANSLATION_UNIT
20 # include <openssl/bio.h>
21 # include <openssl/err.h>
22 # include <openssl/dsa.h>
23 # include <openssl/evp.h>
24 # include <openssl/x509.h>
25 # include <openssl/pem.h>
26 # include <openssl/bn.h>
28 typedef enum OPTION_choice {
29 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
30 OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENGINE,
31 /* Do not change the order here; see case statements below */
32 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
33 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_PUBIN,
34 OPT_PUBOUT, OPT_CIPHER, OPT_PASSIN, OPT_PASSOUT
37 const OPTIONS dsa_options[] = {
38 {"help", OPT_HELP, '-', "Display this summary"},
39 {"inform", OPT_INFORM, 'f', "Input format, DER PEM PVK"},
40 {"outform", OPT_OUTFORM, 'f', "Output format, DER PEM PVK"},
41 {"in", OPT_IN, 's', "Input key"},
42 {"out", OPT_OUT, '>', "Output file"},
43 {"noout", OPT_NOOUT, '-', "Don't print key out"},
44 {"text", OPT_TEXT, '-', "Print the key in text"},
45 {"modulus", OPT_MODULUS, '-', "Print the DSA public value"},
46 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
47 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
48 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
49 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
50 {"", OPT_CIPHER, '-', "Any supported cipher"},
51 # ifndef OPENSSL_NO_RC4
52 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
53 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
54 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
56 # ifndef OPENSSL_NO_ENGINE
57 {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
62 int dsa_main(int argc, char **argv)
67 const EVP_CIPHER *enc = NULL;
68 char *infile = NULL, *outfile = NULL, *prog;
69 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
71 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
72 int i, modulus = 0, pubin = 0, pubout = 0, ret = 1;
73 # ifndef OPENSSL_NO_RC4
78 prog = opt_init(argc, argv, dsa_options);
79 while ((o = opt_next()) != OPT_EOF) {
85 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
88 opt_help(dsa_options);
92 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
99 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
106 e = setup_engine(opt_arg(), 0);
109 passinarg = opt_arg();
112 passoutarg = opt_arg();
114 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
115 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
116 case OPT_PVK_NONE: /* pvk_encr:= 0 */
117 #ifndef OPENSSL_NO_RC4
118 pvk_encr = (o - OPT_PVK_NONE);
137 if (!opt_cipher(opt_unknown(), &enc))
142 argc = opt_num_rest();
146 private = pubin || pubout ? 0 : 1;
150 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
151 BIO_printf(bio_err, "Error getting passwords\n");
155 BIO_printf(bio_err, "read DSA key\n");
160 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
162 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
165 dsa = EVP_PKEY_get1_DSA(pkey);
170 BIO_printf(bio_err, "unable to load Key\n");
171 ERR_print_errors(bio_err);
175 out = bio_open_owner(outfile, outformat, private);
180 assert(pubin || private);
181 if (!DSA_print(out, dsa, 0)) {
183 ERR_print_errors(bio_err);
189 const BIGNUM *pub_key = NULL;
190 DSA_get0_key(dsa, &pub_key, NULL);
191 BIO_printf(out, "Public Key=");
192 BN_print(out, pub_key);
193 BIO_printf(out, "\n");
200 BIO_printf(bio_err, "writing DSA key\n");
201 if (outformat == FORMAT_ASN1) {
202 if (pubin || pubout) {
203 i = i2d_DSA_PUBKEY_bio(out, dsa);
206 i = i2d_DSAPrivateKey_bio(out, dsa);
208 } else if (outformat == FORMAT_PEM) {
209 if (pubin || pubout) {
210 i = PEM_write_bio_DSA_PUBKEY(out, dsa);
213 i = PEM_write_bio_DSAPrivateKey(out, dsa, enc,
214 NULL, 0, NULL, passout);
216 # ifndef OPENSSL_NO_RSA
217 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
220 EVP_PKEY_set1_DSA(pk, dsa);
221 if (outformat == FORMAT_PVK) {
223 BIO_printf(bio_err, "PVK form impossible with public key input\n");
228 # ifdef OPENSSL_NO_RC4
229 BIO_printf(bio_err, "PVK format not supported\n");
233 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
235 } else if (pubin || pubout) {
236 i = i2b_PublicKey_bio(out, pk);
239 i = i2b_PrivateKey_bio(out, pk);
244 BIO_printf(bio_err, "bad output format specified for outfile\n");
248 BIO_printf(bio_err, "unable to write private key\n");
249 ERR_print_errors(bio_err);
257 OPENSSL_free(passin);
258 OPENSSL_free(passout);