source: rtems-libbsd/freebsd/crypto/openssl/apps/dsa.c @ d1dac78

5
Last change on this file since d1dac78 was d1dac78, checked in by Christian Mauderer <christian.mauderer@…>, on 03/26/19 at 10:08:47

bin/openssl: Port to RTEMS.
  • Property mode set to 100644
File size: 7.9 KB
Line 
1#include <machine/rtems-bsd-user-space.h>
2#ifdef __rtems__
3#include <machine/rtems-bsd-program.h>
4#include "rtems-bsd-openssl-namespace.h"
5#endif /* __rtems__ */
6
7/*
8 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
9 *
10 * Licensed under the OpenSSL license (the "License").  You may not use
11 * this file except in compliance with the License.  You can obtain a copy
12 * in the file LICENSE in the source distribution or at
13 * https://www.openssl.org/source/license.html
14 */
15
16#include <openssl/opensslconf.h>
17#ifdef OPENSSL_NO_DSA
18NON_EMPTY_TRANSLATION_UNIT
19#else
20
21# include <stdio.h>
22# include <stdlib.h>
23# include <string.h>
24# include <time.h>
25# include "apps.h"
26# include "progs.h"
27# include <openssl/bio.h>
28# include <openssl/err.h>
29# include <openssl/dsa.h>
30# include <openssl/evp.h>
31# include <openssl/x509.h>
32# include <openssl/pem.h>
33# include <openssl/bn.h>
34
35typedef enum OPTION_choice {
36    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
37    OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENGINE,
38    /* Do not change the order here; see case statements below */
39    OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
40    OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_PUBIN,
41    OPT_PUBOUT, OPT_CIPHER, OPT_PASSIN, OPT_PASSOUT
42} OPTION_CHOICE;
43
44const OPTIONS dsa_options[] = {
45    {"help", OPT_HELP, '-', "Display this summary"},
46    {"inform", OPT_INFORM, 'f', "Input format, DER PEM PVK"},
47    {"outform", OPT_OUTFORM, 'f', "Output format, DER PEM PVK"},
48    {"in", OPT_IN, 's', "Input key"},
49    {"out", OPT_OUT, '>', "Output file"},
50    {"noout", OPT_NOOUT, '-', "Don't print key out"},
51    {"text", OPT_TEXT, '-', "Print the key in text"},
52    {"modulus", OPT_MODULUS, '-', "Print the DSA public value"},
53    {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
54    {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
55    {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
56    {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
57    {"", OPT_CIPHER, '-', "Any supported cipher"},
58# ifndef OPENSSL_NO_RC4
59    {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
60    {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
61    {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
62# endif
63# ifndef OPENSSL_NO_ENGINE
64    {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
65# endif
66    {NULL}
67};
68
69int dsa_main(int argc, char **argv)
70{
71    BIO *out = NULL;
72    DSA *dsa = NULL;
73    ENGINE *e = NULL;
74    const EVP_CIPHER *enc = NULL;
75    char *infile = NULL, *outfile = NULL, *prog;
76    char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
77    OPTION_CHOICE o;
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
81    int pvk_encr = 2;
82# endif
83    int private = 0;
84
85    prog = opt_init(argc, argv, dsa_options);
86    while ((o = opt_next()) != OPT_EOF) {
87        switch (o) {
88        case OPT_EOF:
89        case OPT_ERR:
90 opthelp:
91            ret = 0;
92            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
93            goto end;
94        case OPT_HELP:
95            opt_help(dsa_options);
96            ret = 0;
97            goto end;
98        case OPT_INFORM:
99            if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
100                goto opthelp;
101            break;
102        case OPT_IN:
103            infile = opt_arg();
104            break;
105        case OPT_OUTFORM:
106            if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
107                goto opthelp;
108            break;
109        case OPT_OUT:
110            outfile = opt_arg();
111            break;
112        case OPT_ENGINE:
113            e = setup_engine(opt_arg(), 0);
114            break;
115        case OPT_PASSIN:
116            passinarg = opt_arg();
117            break;
118        case OPT_PASSOUT:
119            passoutarg = opt_arg();
120            break;
121        case OPT_PVK_STRONG:    /* pvk_encr:= 2 */
122        case OPT_PVK_WEAK:      /* pvk_encr:= 1 */
123        case OPT_PVK_NONE:      /* pvk_encr:= 0 */
124#ifndef OPENSSL_NO_RC4
125            pvk_encr = (o - OPT_PVK_NONE);
126#endif
127            break;
128        case OPT_NOOUT:
129            noout = 1;
130            break;
131        case OPT_TEXT:
132            text = 1;
133            break;
134        case OPT_MODULUS:
135            modulus = 1;
136            break;
137        case OPT_PUBIN:
138            pubin = 1;
139            break;
140        case OPT_PUBOUT:
141            pubout = 1;
142            break;
143        case OPT_CIPHER:
144            if (!opt_cipher(opt_unknown(), &enc))
145                goto end;
146            break;
147        }
148    }
149    argc = opt_num_rest();
150    if (argc != 0)
151        goto opthelp;
152
153    private = pubin || pubout ? 0 : 1;
154    if (text && !pubin)
155        private = 1;
156
157    if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
158        BIO_printf(bio_err, "Error getting passwords\n");
159        goto end;
160    }
161
162    BIO_printf(bio_err, "read DSA key\n");
163    {
164        EVP_PKEY *pkey;
165
166        if (pubin)
167            pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
168        else
169            pkey = load_key(infile, informat, 1, passin, e, "Private Key");
170
171        if (pkey != NULL) {
172            dsa = EVP_PKEY_get1_DSA(pkey);
173            EVP_PKEY_free(pkey);
174        }
175    }
176    if (dsa == NULL) {
177        BIO_printf(bio_err, "unable to load Key\n");
178        ERR_print_errors(bio_err);
179        goto end;
180    }
181
182    out = bio_open_owner(outfile, outformat, private);
183    if (out == NULL)
184        goto end;
185
186    if (text) {
187        assert(pubin || private);
188        if (!DSA_print(out, dsa, 0)) {
189            perror(outfile);
190            ERR_print_errors(bio_err);
191            goto end;
192        }
193    }
194
195    if (modulus) {
196        const BIGNUM *pub_key = NULL;
197        DSA_get0_key(dsa, &pub_key, NULL);
198        BIO_printf(out, "Public Key=");
199        BN_print(out, pub_key);
200        BIO_printf(out, "\n");
201    }
202
203    if (noout) {
204        ret = 0;
205        goto end;
206    }
207    BIO_printf(bio_err, "writing DSA key\n");
208    if (outformat == FORMAT_ASN1) {
209        if (pubin || pubout) {
210            i = i2d_DSA_PUBKEY_bio(out, dsa);
211        } else {
212            assert(private);
213            i = i2d_DSAPrivateKey_bio(out, dsa);
214        }
215    } else if (outformat == FORMAT_PEM) {
216        if (pubin || pubout) {
217            i = PEM_write_bio_DSA_PUBKEY(out, dsa);
218        } else {
219            assert(private);
220            i = PEM_write_bio_DSAPrivateKey(out, dsa, enc,
221                                            NULL, 0, NULL, passout);
222        }
223# ifndef OPENSSL_NO_RSA
224    } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
225        EVP_PKEY *pk;
226        pk = EVP_PKEY_new();
227        if (pk == NULL)
228           goto end;
229
230        EVP_PKEY_set1_DSA(pk, dsa);
231        if (outformat == FORMAT_PVK) {
232            if (pubin) {
233                BIO_printf(bio_err, "PVK form impossible with public key input\n");
234                EVP_PKEY_free(pk);
235                goto end;
236            }
237            assert(private);
238#  ifdef OPENSSL_NO_RC4
239            BIO_printf(bio_err, "PVK format not supported\n");
240            EVP_PKEY_free(pk);
241            goto end;
242#  else
243            i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
244#  endif
245        } else if (pubin || pubout) {
246            i = i2b_PublicKey_bio(out, pk);
247        } else {
248            assert(private);
249            i = i2b_PrivateKey_bio(out, pk);
250        }
251        EVP_PKEY_free(pk);
252# endif
253    } else {
254        BIO_printf(bio_err, "bad output format specified for outfile\n");
255        goto end;
256    }
257    if (i <= 0) {
258        BIO_printf(bio_err, "unable to write private key\n");
259        ERR_print_errors(bio_err);
260        goto end;
261    }
262    ret = 0;
263 end:
264    BIO_free_all(out);
265    DSA_free(dsa);
266    release_engine(e);
267    OPENSSL_free(passin);
268    OPENSSL_free(passout);
269    return ret;
270}
271#endif
272#ifdef __rtems__
273#include "rtems-bsd-openssl-dsa-data.h"
274#endif /* __rtems__ */
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