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 #include <openssl/opensslconf.h>
12 NON_EMPTY_TRANSLATION_UNIT
21 # include <openssl/bio.h>
22 # include <openssl/err.h>
23 # include <openssl/dsa.h>
24 # include <openssl/evp.h>
25 # include <openssl/x509.h>
26 # include <openssl/pem.h>
27 # include <openssl/bn.h>
29 typedef enum OPTION_choice {
30 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
31 OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENGINE,
32 /* Do not change the order here; see case statements below */
33 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
34 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_PUBIN,
35 OPT_PUBOUT, OPT_CIPHER, OPT_PASSIN, OPT_PASSOUT
38 const OPTIONS dsa_options[] = {
39 OPT_SECTION("General"),
40 {"help", OPT_HELP, '-', "Display this summary"},
41 {"", OPT_CIPHER, '-', "Any supported cipher"},
42 # ifndef OPENSSL_NO_RC4
43 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
44 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
45 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
47 # ifndef OPENSSL_NO_ENGINE
48 {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
52 {"in", OPT_IN, 's', "Input key"},
53 {"inform", OPT_INFORM, 'f', "Input format, DER PEM PVK"},
54 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
55 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
57 OPT_SECTION("Output"),
58 {"out", OPT_OUT, '>', "Output file"},
59 {"outform", OPT_OUTFORM, 'f', "Output format, DER PEM PVK"},
60 {"noout", OPT_NOOUT, '-', "Don't print key out"},
61 {"text", OPT_TEXT, '-', "Print the key in text"},
62 {"modulus", OPT_MODULUS, '-', "Print the DSA public value"},
63 {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
64 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
69 int dsa_main(int argc, char **argv)
74 const EVP_CIPHER *enc = NULL;
75 char *infile = NULL, *outfile = NULL, *prog;
76 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
78 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
79 int i, modulus = 0, pubin = 0, pubout = 0, ret = 1;
80 # ifndef OPENSSL_NO_RC4
84 EVP_PKEY *pkey = NULL;
86 prog = opt_init(argc, argv, dsa_options);
87 while ((o = opt_next()) != OPT_EOF) {
93 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
96 opt_help(dsa_options);
100 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
107 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
114 e = setup_engine(opt_arg(), 0);
117 passinarg = opt_arg();
120 passoutarg = opt_arg();
122 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
123 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
124 case OPT_PVK_NONE: /* pvk_encr:= 0 */
125 #ifndef OPENSSL_NO_RC4
126 pvk_encr = (o - OPT_PVK_NONE);
145 if (!opt_cipher(opt_unknown(), &enc))
150 argc = opt_num_rest();
154 private = pubin || pubout ? 0 : 1;
158 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
159 BIO_printf(bio_err, "Error getting passwords\n");
163 BIO_printf(bio_err, "read DSA key\n");
165 pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
167 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
170 dsa = EVP_PKEY_get1_DSA(pkey);
173 BIO_printf(bio_err, "unable to load Key\n");
174 ERR_print_errors(bio_err);
178 out = bio_open_owner(outfile, outformat, private);
183 assert(pubin || private);
184 if (!EVP_PKEY_print_private(out, pkey, 0, NULL)) {
186 ERR_print_errors(bio_err);
192 const BIGNUM *pub_key = NULL;
193 DSA_get0_key(dsa, &pub_key, NULL);
194 BIO_printf(out, "Public Key=");
195 BN_print(out, pub_key);
196 BIO_printf(out, "\n");
203 BIO_printf(bio_err, "writing DSA key\n");
204 if (outformat == FORMAT_ASN1) {
205 if (pubin || pubout) {
206 i = i2d_DSA_PUBKEY_bio(out, dsa);
209 i = i2d_DSAPrivateKey_bio(out, dsa);
211 } else if (outformat == FORMAT_PEM) {
212 if (pubin || pubout) {
213 i = PEM_write_bio_DSA_PUBKEY(out, dsa);
216 i = PEM_write_bio_DSAPrivateKey(out, dsa, enc,
217 NULL, 0, NULL, passout);
219 # ifndef OPENSSL_NO_RSA
220 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
226 EVP_PKEY_set1_DSA(pk, dsa);
227 if (outformat == FORMAT_PVK) {
229 BIO_printf(bio_err, "PVK form impossible with public key input\n");
234 # ifdef OPENSSL_NO_RC4
235 BIO_printf(bio_err, "PVK format not supported\n");
239 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
241 } else if (pubin || pubout) {
242 i = i2b_PublicKey_bio(out, pk);
245 i = i2b_PrivateKey_bio(out, pk);
250 BIO_printf(bio_err, "bad output format specified for outfile\n");
254 BIO_printf(bio_err, "unable to write private key\n");
255 ERR_print_errors(bio_err);
264 OPENSSL_free(passin);
265 OPENSSL_free(passout);