aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/openssl/apps/pkcs8.c
blob: 205536560ac13413de476e306390c88a418c2b01 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
/*
 * Copyright 1999-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include "progs.h"
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/pkcs12.h>

typedef enum OPTION_choice {
    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
    OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
    OPT_TOPK8, OPT_NOITER, OPT_NOCRYPT,
#ifndef OPENSSL_NO_SCRYPT
    OPT_SCRYPT, OPT_SCRYPT_N, OPT_SCRYPT_R, OPT_SCRYPT_P,
#endif
    OPT_V2, OPT_V1, OPT_V2PRF, OPT_ITER, OPT_PASSIN, OPT_PASSOUT,
    OPT_TRADITIONAL,
    OPT_R_ENUM
} OPTION_CHOICE;

const OPTIONS pkcs8_options[] = {
    {"help", OPT_HELP, '-', "Display this summary"},
    {"inform", OPT_INFORM, 'F', "Input format (DER or PEM)"},
    {"outform", OPT_OUTFORM, 'F', "Output format (DER or PEM)"},
    {"in", OPT_IN, '<', "Input file"},
    {"out", OPT_OUT, '>', "Output file"},
    {"topk8", OPT_TOPK8, '-', "Output PKCS8 file"},
    {"noiter", OPT_NOITER, '-', "Use 1 as iteration count"},
    {"nocrypt", OPT_NOCRYPT, '-', "Use or expect unencrypted private key"},
    OPT_R_OPTIONS,
    {"v2", OPT_V2, 's', "Use PKCS#5 v2.0 and cipher"},
    {"v1", OPT_V1, 's', "Use PKCS#5 v1.5 and cipher"},
    {"v2prf", OPT_V2PRF, 's', "Set the PRF algorithm to use with PKCS#5 v2.0"},
    {"iter", OPT_ITER, 'p', "Specify the iteration count"},
    {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
    {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
    {"traditional", OPT_TRADITIONAL, '-', "use traditional format private key"},
#ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif
#ifndef OPENSSL_NO_SCRYPT
    {"scrypt", OPT_SCRYPT, '-', "Use scrypt algorithm"},
    {"scrypt_N", OPT_SCRYPT_N, 's', "Set scrypt N parameter"},
    {"scrypt_r", OPT_SCRYPT_R, 's', "Set scrypt r parameter"},
    {"scrypt_p", OPT_SCRYPT_P, 's', "Set scrypt p parameter"},
#endif
    {NULL}
};

int pkcs8_main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL;
    ENGINE *e = NULL;
    EVP_PKEY *pkey = NULL;
    PKCS8_PRIV_KEY_INFO *p8inf = NULL;
    X509_SIG *p8 = NULL;
    const EVP_CIPHER *cipher = NULL;
    char *infile = NULL, *outfile = NULL;
    char *passinarg = NULL, *passoutarg = NULL, *prog;
#ifndef OPENSSL_NO_UI_CONSOLE
    char pass[APP_PASS_LEN];
#endif
    char *passin = NULL, *passout = NULL, *p8pass = NULL;
    OPTION_CHOICE o;
    int nocrypt = 0, ret = 1, iter = PKCS12_DEFAULT_ITER;
    int informat = FORMAT_PEM, outformat = FORMAT_PEM, topk8 = 0, pbe_nid = -1;
    int private = 0, traditional = 0;
#ifndef OPENSSL_NO_SCRYPT
    long scrypt_N = 0, scrypt_r = 0, scrypt_p = 0;
#endif

    prog = opt_init(argc, argv, pkcs8_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
 opthelp:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            opt_help(pkcs8_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
                goto opthelp;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUTFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
                goto opthelp;
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_TOPK8:
            topk8 = 1;
            break;
        case OPT_NOITER:
            iter = 1;
            break;
        case OPT_NOCRYPT:
            nocrypt = 1;
            break;
        case OPT_R_CASES:
            if (!opt_rand(o))
                goto end;
            break;
        case OPT_TRADITIONAL:
            traditional = 1;
            break;
        case OPT_V2:
            if (!opt_cipher(opt_arg(), &cipher))
                goto opthelp;
            break;
        case OPT_V1:
            pbe_nid = OBJ_txt2nid(opt_arg());
            if (pbe_nid == NID_undef) {
                BIO_printf(bio_err,
                           "%s: Unknown PBE algorithm %s\n", prog, opt_arg());
                goto opthelp;
            }
            break;
        case OPT_V2PRF:
            pbe_nid = OBJ_txt2nid(opt_arg());
            if (!EVP_PBE_find(EVP_PBE_TYPE_PRF, pbe_nid, NULL, NULL, 0)) {
                BIO_printf(bio_err,
                           "%s: Unknown PRF algorithm %s\n", prog, opt_arg());
                goto opthelp;
            }
            if (cipher == NULL)
                cipher = EVP_aes_256_cbc();
            break;
        case OPT_ITER:
            if (!opt_int(opt_arg(), &iter))
                goto opthelp;
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        case OPT_PASSOUT:
            passoutarg = opt_arg();
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
#ifndef OPENSSL_NO_SCRYPT
        case OPT_SCRYPT:
            scrypt_N = 16384;
            scrypt_r = 8;
            scrypt_p = 1;
            if (cipher == NULL)
                cipher = EVP_aes_256_cbc();
            break;
        case OPT_SCRYPT_N:
            if (!opt_long(opt_arg(), &scrypt_N) || scrypt_N <= 0)
                goto opthelp;
            break;
        case OPT_SCRYPT_R:
            if (!opt_long(opt_arg(), &scrypt_r) || scrypt_r <= 0)
                goto opthelp;
            break;
        case OPT_SCRYPT_P:
            if (!opt_long(opt_arg(), &scrypt_p) || scrypt_p <= 0)
                goto opthelp;
            break;
#endif
        }
    }
    argc = opt_num_rest();
    if (argc != 0)
        goto opthelp;

    private = 1;

    if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
        BIO_printf(bio_err, "Error getting passwords\n");
        goto end;
    }

    if ((pbe_nid == -1) && cipher == NULL)
        cipher = EVP_aes_256_cbc();

    in = bio_open_default(infile, 'r', informat);
    if (in == NULL)
        goto end;
    out = bio_open_owner(outfile, outformat, private);
    if (out == NULL)
        goto end;

    if (topk8) {
        pkey = load_key(infile, informat, 1, passin, e, "key");
        if (pkey == NULL)
            goto end;
        if ((p8inf = EVP_PKEY2PKCS8(pkey)) == NULL) {
            BIO_printf(bio_err, "Error converting key\n");
            ERR_print_errors(bio_err);
            goto end;
        }
        if (nocrypt) {
            assert(private);
            if (outformat == FORMAT_PEM) {
                PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);
            } else if (outformat == FORMAT_ASN1) {
                i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);
            } else {
                BIO_printf(bio_err, "Bad format specified for key\n");
                goto end;
            }
        } else {
            X509_ALGOR *pbe;
            if (cipher) {
#ifndef OPENSSL_NO_SCRYPT
                if (scrypt_N && scrypt_r && scrypt_p)
                    pbe = PKCS5_pbe2_set_scrypt(cipher, NULL, 0, NULL,
                                                scrypt_N, scrypt_r, scrypt_p);
                else
#endif
                    pbe = PKCS5_pbe2_set_iv(cipher, iter, NULL, 0, NULL,
                                            pbe_nid);
            } else {
                pbe = PKCS5_pbe_set(pbe_nid, iter, NULL, 0);
            }
            if (pbe == NULL) {
                BIO_printf(bio_err, "Error setting PBE algorithm\n");
                ERR_print_errors(bio_err);
                goto end;
            }
            if (passout != NULL) {
                p8pass = passout;
            } else if (1) {
                /* To avoid bit rot */
#ifndef OPENSSL_NO_UI_CONSOLE
                p8pass = pass;
                if (EVP_read_pw_string
                    (pass, sizeof(pass), "Enter Encryption Password:", 1)) {
                    X509_ALGOR_free(pbe);
                    goto end;
                }
            } else {
#endif
                BIO_printf(bio_err, "Password required\n");
                goto end;
            }
            p8 = PKCS8_set0_pbe(p8pass, strlen(p8pass), p8inf, pbe);
            if (p8 == NULL) {
                X509_ALGOR_free(pbe);
                BIO_printf(bio_err, "Error encrypting key\n");
                ERR_print_errors(bio_err);
                goto end;
            }
            assert(private);
            if (outformat == FORMAT_PEM)
                PEM_write_bio_PKCS8(out, p8);
            else if (outformat == FORMAT_ASN1)
                i2d_PKCS8_bio(out, p8);
            else {
                BIO_printf(bio_err, "Bad format specified for key\n");
                goto end;
            }
        }

        ret = 0;
        goto end;
    }

    if (nocrypt) {
        if (informat == FORMAT_PEM) {
            p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in, NULL, NULL, NULL);
        } else if (informat == FORMAT_ASN1) {
            p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);
        } else {
            BIO_printf(bio_err, "Bad format specified for key\n");
            goto end;
        }
    } else {
        if (informat == FORMAT_PEM) {
            p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);
        } else if (informat == FORMAT_ASN1) {
            p8 = d2i_PKCS8_bio(in, NULL);
        } else {
            BIO_printf(bio_err, "Bad format specified for key\n");
            goto end;
        }

        if (p8 == NULL) {
            BIO_printf(bio_err, "Error reading key\n");
            ERR_print_errors(bio_err);
            goto end;
        }
        if (passin != NULL) {
            p8pass = passin;
        } else if (1) {
#ifndef OPENSSL_NO_UI_CONSOLE
            p8pass = pass;
            if (EVP_read_pw_string(pass, sizeof(pass), "Enter Password:", 0)) {
                BIO_printf(bio_err, "Can't read Password\n");
                goto end;
            }
        } else {
#endif
            BIO_printf(bio_err, "Password required\n");
            goto end;
        }
        p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass));
    }

    if (p8inf == NULL) {
        BIO_printf(bio_err, "Error decrypting key\n");
        ERR_print_errors(bio_err);
        goto end;
    }

    if ((pkey = EVP_PKCS82PKEY(p8inf)) == NULL) {
        BIO_printf(bio_err, "Error converting key\n");
        ERR_print_errors(bio_err);
        goto end;
    }

    assert(private);
    if (outformat == FORMAT_PEM) {
        if (traditional)
            PEM_write_bio_PrivateKey_traditional(out, pkey, NULL, NULL, 0,
                                                 NULL, passout);
        else
            PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL, passout);
    } else if (outformat == FORMAT_ASN1) {
        i2d_PrivateKey_bio(out, pkey);
    } else {
        BIO_printf(bio_err, "Bad format specified for key\n");
        goto end;
    }
    ret = 0;

 end:
    X509_SIG_free(p8);
    PKCS8_PRIV_KEY_INFO_free(p8inf);
    EVP_PKEY_free(pkey);
    release_engine(e);
    BIO_free_all(out);
    BIO_free(in);
    OPENSSL_free(passin);
    OPENSSL_free(passout);

    return ret;
}