2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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 /* We need to use the deprecated DSA_print */
11 #define OPENSSL_SUPPRESS_DEPRECATED
13 #include <openssl/opensslconf.h>
15 NON_EMPTY_TRANSLATION_UNIT
24 # include <openssl/bio.h>
25 # include <openssl/err.h>
26 # include <openssl/dsa.h>
27 # include <openssl/evp.h>
28 # include <openssl/x509.h>
29 # include <openssl/pem.h>
30 # include <openssl/bn.h>
32 typedef enum OPTION_choice {
33 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
34 OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENGINE,
35 /* Do not change the order here; see case statements below */
36 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
37 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_PUBIN,
38 OPT_PUBOUT, OPT_CIPHER, OPT_PASSIN, OPT_PASSOUT,
42 const OPTIONS dsa_options[] = {
43 OPT_SECTION("General"),
44 {"help", OPT_HELP, '-', "Display this summary"},
45 {"", OPT_CIPHER, '-', "Any supported cipher"},
46 # ifndef OPENSSL_NO_RC4
47 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
48 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
49 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
51 # ifndef OPENSSL_NO_ENGINE
52 {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
56 {"in", OPT_IN, 's', "Input key"},
57 {"inform", OPT_INFORM, 'f', "Input format, DER PEM PVK"},
58 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
59 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
61 OPT_SECTION("Output"),
62 {"out", OPT_OUT, '>', "Output file"},
63 {"outform", OPT_OUTFORM, 'f', "Output format, DER PEM PVK"},
64 {"noout", OPT_NOOUT, '-', "Don't print key out"},
65 {"text", OPT_TEXT, '-', "Print the key in text"},
66 {"modulus", OPT_MODULUS, '-', "Print the DSA public value"},
67 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
68 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
74 int dsa_main(int argc, char **argv)
79 const EVP_CIPHER *enc = NULL;
80 char *infile = NULL, *outfile = NULL, *prog;
81 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
83 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
84 int i, modulus = 0, pubin = 0, pubout = 0, ret = 1;
85 # ifndef OPENSSL_NO_RC4
90 prog = opt_init(argc, argv, dsa_options);
91 while ((o = opt_next()) != OPT_EOF) {
97 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
100 opt_help(dsa_options);
104 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
111 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
118 e = setup_engine(opt_arg(), 0);
121 passinarg = opt_arg();
124 passoutarg = opt_arg();
126 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
127 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
128 case OPT_PVK_NONE: /* pvk_encr:= 0 */
129 #ifndef OPENSSL_NO_RC4
130 pvk_encr = (o - OPT_PVK_NONE);
149 if (!opt_cipher(opt_unknown(), &enc))
153 if (!opt_provider(o))
158 argc = opt_num_rest();
162 private = pubin || pubout ? 0 : 1;
166 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
167 BIO_printf(bio_err, "Error getting passwords\n");
171 BIO_printf(bio_err, "read DSA key\n");
176 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
178 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
181 dsa = EVP_PKEY_get1_DSA(pkey);
187 BIO_printf(bio_err, "unable to load Key\n");
188 ERR_print_errors(bio_err);
192 out = bio_open_owner(outfile, outformat, private);
197 assert(pubin || private);
198 if (!DSA_print(out, dsa, 0)) {
200 ERR_print_errors(bio_err);
206 const BIGNUM *pub_key = NULL;
207 DSA_get0_key(dsa, &pub_key, NULL);
208 BIO_printf(out, "Public Key=");
209 BN_print(out, pub_key);
210 BIO_printf(out, "\n");
217 BIO_printf(bio_err, "writing DSA key\n");
218 if (outformat == FORMAT_ASN1) {
219 if (pubin || pubout) {
220 i = i2d_DSA_PUBKEY_bio(out, dsa);
223 i = i2d_DSAPrivateKey_bio(out, dsa);
225 } else if (outformat == FORMAT_PEM) {
226 if (pubin || pubout) {
227 i = PEM_write_bio_DSA_PUBKEY(out, dsa);
230 i = PEM_write_bio_DSAPrivateKey(out, dsa, enc,
231 NULL, 0, NULL, passout);
233 # ifndef OPENSSL_NO_RSA
234 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
240 EVP_PKEY_set1_DSA(pk, dsa);
241 if (outformat == FORMAT_PVK) {
243 BIO_printf(bio_err, "PVK form impossible with public key input\n");
248 # ifdef OPENSSL_NO_RC4
249 BIO_printf(bio_err, "PVK format not supported\n");
253 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
255 } else if (pubin || pubout) {
256 i = i2b_PublicKey_bio(out, pk);
259 i = i2b_PrivateKey_bio(out, pk);
264 BIO_printf(bio_err, "bad output format specified for outfile\n");
268 BIO_printf(bio_err, "unable to write private key\n");
269 ERR_print_errors(bio_err);
277 OPENSSL_free(passin);
278 OPENSSL_free(passout);