Coverage Report

Created: 2025-12-10 06:24

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/openssl/crypto/x509/x_all.c
Line
Count
Source
1
/*
2
 * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
3
 *
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
8
 */
9
10
/*
11
 * Low level APIs are deprecated for public use, but still ok for
12
 * internal use.
13
 */
14
#include "internal/deprecated.h"
15
16
#include <stdio.h>
17
#include "internal/cryptlib.h"
18
#include <openssl/buffer.h>
19
#include <openssl/asn1.h>
20
#include <openssl/evp.h>
21
#include <openssl/x509.h>
22
#include <openssl/x509_acert.h>
23
#include <openssl/http.h>
24
#include <openssl/rsa.h>
25
#include <openssl/dsa.h>
26
#include <openssl/x509v3.h>
27
#include "internal/asn1.h"
28
#include "crypto/pkcs7.h"
29
#include "crypto/x509.h"
30
#include "crypto/x509_acert.h"
31
#include "crypto/rsa.h"
32
33
int X509_verify(X509 *a, EVP_PKEY *r)
34
0
{
35
0
    if (X509_ALGOR_cmp(&a->sig_alg, &a->cert_info.signature) != 0)
36
0
        return 0;
37
38
0
    return ASN1_item_verify_ex(ASN1_ITEM_rptr(X509_CINF), &a->sig_alg,
39
0
        &a->signature, &a->cert_info,
40
0
        a->distinguishing_id, r, a->libctx, a->propq);
41
0
}
42
43
int X509_REQ_verify_ex(X509_REQ *a, EVP_PKEY *r, OSSL_LIB_CTX *libctx,
44
    const char *propq)
45
0
{
46
0
    if (X509_REQ_get_version(a) != X509_REQ_VERSION_1) {
47
0
        ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_VERSION);
48
0
        return -1;
49
0
    }
50
51
0
    return ASN1_item_verify_ex(ASN1_ITEM_rptr(X509_REQ_INFO), &a->sig_alg,
52
0
        a->signature, &a->req_info, a->distinguishing_id,
53
0
        r, libctx, propq);
54
0
}
55
56
int X509_REQ_verify(X509_REQ *a, EVP_PKEY *r)
57
0
{
58
0
    return X509_REQ_verify_ex(a, r, NULL, NULL);
59
0
}
60
61
int X509_ACERT_verify(X509_ACERT *a, EVP_PKEY *r)
62
0
{
63
0
    if (X509_ALGOR_cmp(&a->sig_alg, &a->acinfo->signature) != 0)
64
0
        return 0;
65
66
0
    return ASN1_item_verify_ex(ASN1_ITEM_rptr(X509_ACERT_INFO), &a->sig_alg,
67
0
        &a->signature, a->acinfo,
68
0
        NULL, r, NULL, NULL);
69
0
}
70
71
int NETSCAPE_SPKI_verify(NETSCAPE_SPKI *a, EVP_PKEY *r)
72
0
{
73
0
    return ASN1_item_verify(ASN1_ITEM_rptr(NETSCAPE_SPKAC),
74
0
        &a->sig_algor, a->signature, a->spkac, r);
75
0
}
76
77
int X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
78
0
{
79
0
    if (x == NULL) {
80
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
81
0
        return 0;
82
0
    }
83
0
    if (sk_X509_EXTENSION_num(X509_get0_extensions(x)) > 0
84
0
        && !X509_set_version(x, X509_VERSION_3))
85
0
        return 0;
86
87
    /*
88
     * Setting the modified flag before signing it. This makes the cached
89
     * encoding to be ignored, so even if the certificate fields have changed,
90
     * they are signed correctly.
91
     * The X509_sign_ctx, X509_REQ_sign{,_ctx}, X509_CRL_sign{,_ctx} functions
92
     * which exist below are the same.
93
     */
94
0
    x->cert_info.enc.modified = 1;
95
0
    return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_CINF), &x->cert_info.signature,
96
0
        &x->sig_alg, &x->signature, &x->cert_info, NULL,
97
0
        pkey, md, x->libctx, x->propq);
98
0
}
99
100
int X509_sign_ctx(X509 *x, EVP_MD_CTX *ctx)
101
0
{
102
0
    if (x == NULL) {
103
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
104
0
        return 0;
105
0
    }
106
0
    if (sk_X509_EXTENSION_num(X509_get0_extensions(x)) > 0
107
0
        && !X509_set_version(x, X509_VERSION_3))
108
0
        return 0;
109
0
    x->cert_info.enc.modified = 1;
110
0
    return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_CINF),
111
0
        &x->cert_info.signature,
112
0
        &x->sig_alg, &x->signature, &x->cert_info, ctx);
113
0
}
114
115
static ASN1_VALUE *simple_get_asn1(const char *url, BIO *bio, BIO *rbio,
116
    int timeout, const ASN1_ITEM *it)
117
0
{
118
0
#ifndef OPENSSL_NO_HTTP
119
0
    size_t max_resp_len = (it == ASN1_ITEM_rptr(X509_CRL)) ? OSSL_HTTP_DEFAULT_MAX_CRL_LEN : OSSL_HTTP_DEFAULT_MAX_RESP_LEN;
120
0
    BIO *mem = OSSL_HTTP_get(url, NULL /* proxy */, NULL /* no_proxy */,
121
0
        bio, rbio, NULL /* cb */, NULL /* arg */,
122
0
        1024 /* buf_size */, NULL /* headers */,
123
0
        NULL /* expected_ct */, 1 /* expect_asn1 */,
124
0
        max_resp_len, timeout);
125
0
    ASN1_VALUE *res = ASN1_item_d2i_bio(it, mem, NULL);
126
127
0
    BIO_free(mem);
128
0
    return res;
129
#else
130
    return 0;
131
#endif
132
0
}
133
134
X509 *X509_load_http(const char *url, BIO *bio, BIO *rbio, int timeout)
135
0
{
136
0
    return (X509 *)simple_get_asn1(url, bio, rbio, timeout,
137
0
        ASN1_ITEM_rptr(X509));
138
0
}
139
140
int X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md)
141
0
{
142
0
    if (x == NULL) {
143
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
144
0
        return 0;
145
0
    }
146
0
    x->req_info.enc.modified = 1;
147
0
    return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_REQ_INFO), &x->sig_alg, NULL,
148
0
        x->signature, &x->req_info, NULL,
149
0
        pkey, md, x->libctx, x->propq);
150
0
}
151
152
int X509_REQ_sign_ctx(X509_REQ *x, EVP_MD_CTX *ctx)
153
0
{
154
0
    if (x == NULL) {
155
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
156
0
        return 0;
157
0
    }
158
0
    x->req_info.enc.modified = 1;
159
0
    return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_REQ_INFO),
160
0
        &x->sig_alg, NULL, x->signature, &x->req_info,
161
0
        ctx);
162
0
}
163
164
int X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md)
165
0
{
166
0
    if (x == NULL) {
167
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
168
0
        return 0;
169
0
    }
170
0
    x->crl.enc.modified = 1;
171
0
    return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_CRL_INFO), &x->crl.sig_alg,
172
0
        &x->sig_alg, &x->signature, &x->crl, NULL,
173
0
        pkey, md, x->libctx, x->propq);
174
0
}
175
176
int X509_CRL_sign_ctx(X509_CRL *x, EVP_MD_CTX *ctx)
177
0
{
178
0
    if (x == NULL) {
179
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
180
0
        return 0;
181
0
    }
182
0
    x->crl.enc.modified = 1;
183
0
    return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_CRL_INFO),
184
0
        &x->crl.sig_alg, &x->sig_alg, &x->signature,
185
0
        &x->crl, ctx);
186
0
}
187
188
X509_CRL *X509_CRL_load_http(const char *url, BIO *bio, BIO *rbio, int timeout)
189
0
{
190
0
    return (X509_CRL *)simple_get_asn1(url, bio, rbio, timeout,
191
0
        ASN1_ITEM_rptr(X509_CRL));
192
0
}
193
194
int X509_ACERT_sign(X509_ACERT *x, EVP_PKEY *pkey, const EVP_MD *md)
195
0
{
196
0
    return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_ACERT_INFO), &x->sig_alg,
197
0
        &x->acinfo->signature,
198
0
        &x->signature, x->acinfo, NULL,
199
0
        pkey, md, NULL, NULL);
200
0
}
201
202
int X509_ACERT_sign_ctx(X509_ACERT *x, EVP_MD_CTX *ctx)
203
0
{
204
0
    return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_ACERT_INFO),
205
0
        &x->sig_alg, &x->acinfo->signature, &x->signature,
206
0
        x->acinfo, ctx);
207
0
}
208
209
int NETSCAPE_SPKI_sign(NETSCAPE_SPKI *x, EVP_PKEY *pkey, const EVP_MD *md)
210
0
{
211
0
    return ASN1_item_sign_ex(ASN1_ITEM_rptr(NETSCAPE_SPKAC), &x->sig_algor, NULL,
212
0
        x->signature, x->spkac, NULL, pkey, md, NULL, NULL);
213
0
}
214
215
#ifndef OPENSSL_NO_STDIO
216
X509 *d2i_X509_fp(FILE *fp, X509 **x509)
217
0
{
218
0
    return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509), fp, x509);
219
0
}
220
221
int i2d_X509_fp(FILE *fp, const X509 *x509)
222
0
{
223
0
    return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509), fp, x509);
224
0
}
225
#endif
226
227
X509 *d2i_X509_bio(BIO *bp, X509 **x509)
228
0
{
229
0
    return ASN1_item_d2i_bio(ASN1_ITEM_rptr(X509), bp, x509);
230
0
}
231
232
int i2d_X509_bio(BIO *bp, const X509 *x509)
233
0
{
234
0
    return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509), bp, x509);
235
0
}
236
237
#ifndef OPENSSL_NO_STDIO
238
X509_CRL *d2i_X509_CRL_fp(FILE *fp, X509_CRL **crl)
239
0
{
240
0
    return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509_CRL), fp, crl);
241
0
}
242
243
int i2d_X509_CRL_fp(FILE *fp, const X509_CRL *crl)
244
0
{
245
0
    return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509_CRL), fp, crl);
246
0
}
247
#endif
248
249
X509_CRL *d2i_X509_CRL_bio(BIO *bp, X509_CRL **crl)
250
0
{
251
0
    return ASN1_item_d2i_bio(ASN1_ITEM_rptr(X509_CRL), bp, crl);
252
0
}
253
254
int i2d_X509_CRL_bio(BIO *bp, const X509_CRL *crl)
255
0
{
256
0
    return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509_CRL), bp, crl);
257
0
}
258
259
#ifndef OPENSSL_NO_STDIO
260
PKCS7 *d2i_PKCS7_fp(FILE *fp, PKCS7 **p7)
261
0
{
262
0
    PKCS7 *ret;
263
0
    OSSL_LIB_CTX *libctx = NULL;
264
0
    const char *propq = NULL;
265
266
0
    if (p7 != NULL && *p7 != NULL) {
267
0
        libctx = (*p7)->ctx.libctx;
268
0
        propq = (*p7)->ctx.propq;
269
0
    }
270
271
0
    ret = ASN1_item_d2i_fp_ex(ASN1_ITEM_rptr(PKCS7), fp, p7, libctx, propq);
272
0
    if (ret != NULL)
273
0
        ossl_pkcs7_resolve_libctx(ret);
274
0
    return ret;
275
0
}
276
277
int i2d_PKCS7_fp(FILE *fp, const PKCS7 *p7)
278
0
{
279
0
    return ASN1_item_i2d_fp(ASN1_ITEM_rptr(PKCS7), fp, p7);
280
0
}
281
#endif
282
283
PKCS7 *d2i_PKCS7_bio(BIO *bp, PKCS7 **p7)
284
0
{
285
0
    PKCS7 *ret;
286
0
    OSSL_LIB_CTX *libctx = NULL;
287
0
    const char *propq = NULL;
288
289
0
    if (p7 != NULL && *p7 != NULL) {
290
0
        libctx = (*p7)->ctx.libctx;
291
0
        propq = (*p7)->ctx.propq;
292
0
    }
293
294
0
    ret = ASN1_item_d2i_bio_ex(ASN1_ITEM_rptr(PKCS7), bp, p7, libctx, propq);
295
0
    if (ret != NULL)
296
0
        ossl_pkcs7_resolve_libctx(ret);
297
0
    return ret;
298
0
}
299
300
int i2d_PKCS7_bio(BIO *bp, const PKCS7 *p7)
301
0
{
302
0
    return ASN1_item_i2d_bio(ASN1_ITEM_rptr(PKCS7), bp, p7);
303
0
}
304
305
#ifndef OPENSSL_NO_STDIO
306
X509_REQ *d2i_X509_REQ_fp(FILE *fp, X509_REQ **req)
307
0
{
308
0
    return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509_REQ), fp, req);
309
0
}
310
311
int i2d_X509_REQ_fp(FILE *fp, const X509_REQ *req)
312
0
{
313
0
    return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509_REQ), fp, req);
314
0
}
315
#endif
316
317
X509_REQ *d2i_X509_REQ_bio(BIO *bp, X509_REQ **req)
318
0
{
319
0
    OSSL_LIB_CTX *libctx = NULL;
320
0
    const char *propq = NULL;
321
322
0
    if (req != NULL && *req != NULL) {
323
0
        libctx = (*req)->libctx;
324
0
        propq = (*req)->propq;
325
0
    }
326
327
0
    return ASN1_item_d2i_bio_ex(ASN1_ITEM_rptr(X509_REQ), bp, req, libctx, propq);
328
0
}
329
330
int i2d_X509_REQ_bio(BIO *bp, const X509_REQ *req)
331
0
{
332
0
    return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509_REQ), bp, req);
333
0
}
334
335
#ifndef OPENSSL_NO_STDIO
336
RSA *d2i_RSAPrivateKey_fp(FILE *fp, RSA **rsa)
337
0
{
338
0
    return ASN1_item_d2i_fp(ASN1_ITEM_rptr(RSAPrivateKey), fp, rsa);
339
0
}
340
341
int i2d_RSAPrivateKey_fp(FILE *fp, const RSA *rsa)
342
0
{
343
0
    return ASN1_item_i2d_fp(ASN1_ITEM_rptr(RSAPrivateKey), fp, rsa);
344
0
}
345
346
RSA *d2i_RSAPublicKey_fp(FILE *fp, RSA **rsa)
347
0
{
348
0
    return ASN1_item_d2i_fp(ASN1_ITEM_rptr(RSAPublicKey), fp, rsa);
349
0
}
350
351
RSA *d2i_RSA_PUBKEY_fp(FILE *fp, RSA **rsa)
352
0
{
353
0
    return ASN1_d2i_fp((void *(*)(void))
354
0
                           RSA_new,
355
0
        (D2I_OF(void))d2i_RSA_PUBKEY, fp,
356
0
        (void **)rsa);
357
0
}
358
359
int i2d_RSAPublicKey_fp(FILE *fp, const RSA *rsa)
360
0
{
361
0
    return ASN1_item_i2d_fp(ASN1_ITEM_rptr(RSAPublicKey), fp, rsa);
362
0
}
363
364
int i2d_RSA_PUBKEY_fp(FILE *fp, const RSA *rsa)
365
0
{
366
0
    return ASN1_i2d_fp((I2D_OF(void))i2d_RSA_PUBKEY, fp, rsa);
367
0
}
368
#endif
369
370
RSA *d2i_RSAPrivateKey_bio(BIO *bp, RSA **rsa)
371
0
{
372
0
    return ASN1_item_d2i_bio(ASN1_ITEM_rptr(RSAPrivateKey), bp, rsa);
373
0
}
374
375
int i2d_RSAPrivateKey_bio(BIO *bp, const RSA *rsa)
376
0
{
377
0
    return ASN1_item_i2d_bio(ASN1_ITEM_rptr(RSAPrivateKey), bp, rsa);
378
0
}
379
380
RSA *d2i_RSAPublicKey_bio(BIO *bp, RSA **rsa)
381
0
{
382
0
    return ASN1_item_d2i_bio(ASN1_ITEM_rptr(RSAPublicKey), bp, rsa);
383
0
}
384
385
RSA *d2i_RSA_PUBKEY_bio(BIO *bp, RSA **rsa)
386
0
{
387
0
    return ASN1_d2i_bio_of(RSA, RSA_new, d2i_RSA_PUBKEY, bp, rsa);
388
0
}
389
390
int i2d_RSAPublicKey_bio(BIO *bp, const RSA *rsa)
391
0
{
392
0
    return ASN1_item_i2d_bio(ASN1_ITEM_rptr(RSAPublicKey), bp, rsa);
393
0
}
394
395
int i2d_RSA_PUBKEY_bio(BIO *bp, const RSA *rsa)
396
0
{
397
0
    return ASN1_i2d_bio_of(RSA, i2d_RSA_PUBKEY, bp, rsa);
398
0
}
399
400
#ifndef OPENSSL_NO_DSA
401
#ifndef OPENSSL_NO_STDIO
402
DSA *d2i_DSAPrivateKey_fp(FILE *fp, DSA **dsa)
403
0
{
404
0
    return ASN1_d2i_fp_of(DSA, DSA_new, d2i_DSAPrivateKey, fp, dsa);
405
0
}
406
407
int i2d_DSAPrivateKey_fp(FILE *fp, const DSA *dsa)
408
0
{
409
0
    return ASN1_i2d_fp_of(DSA, i2d_DSAPrivateKey, fp, dsa);
410
0
}
411
412
DSA *d2i_DSA_PUBKEY_fp(FILE *fp, DSA **dsa)
413
0
{
414
0
    return ASN1_d2i_fp_of(DSA, DSA_new, d2i_DSA_PUBKEY, fp, dsa);
415
0
}
416
417
int i2d_DSA_PUBKEY_fp(FILE *fp, const DSA *dsa)
418
0
{
419
0
    return ASN1_i2d_fp_of(DSA, i2d_DSA_PUBKEY, fp, dsa);
420
0
}
421
#endif
422
423
DSA *d2i_DSAPrivateKey_bio(BIO *bp, DSA **dsa)
424
0
{
425
0
    return ASN1_d2i_bio_of(DSA, DSA_new, d2i_DSAPrivateKey, bp, dsa);
426
0
}
427
428
int i2d_DSAPrivateKey_bio(BIO *bp, const DSA *dsa)
429
0
{
430
0
    return ASN1_i2d_bio_of(DSA, i2d_DSAPrivateKey, bp, dsa);
431
0
}
432
433
DSA *d2i_DSA_PUBKEY_bio(BIO *bp, DSA **dsa)
434
0
{
435
0
    return ASN1_d2i_bio_of(DSA, DSA_new, d2i_DSA_PUBKEY, bp, dsa);
436
0
}
437
438
int i2d_DSA_PUBKEY_bio(BIO *bp, const DSA *dsa)
439
0
{
440
0
    return ASN1_i2d_bio_of(DSA, i2d_DSA_PUBKEY, bp, dsa);
441
0
}
442
443
#endif
444
445
#ifndef OPENSSL_NO_EC
446
#ifndef OPENSSL_NO_STDIO
447
EC_KEY *d2i_EC_PUBKEY_fp(FILE *fp, EC_KEY **eckey)
448
0
{
449
0
    return ASN1_d2i_fp_of(EC_KEY, EC_KEY_new, d2i_EC_PUBKEY, fp, eckey);
450
0
}
451
452
int i2d_EC_PUBKEY_fp(FILE *fp, const EC_KEY *eckey)
453
0
{
454
0
    return ASN1_i2d_fp_of(EC_KEY, i2d_EC_PUBKEY, fp, eckey);
455
0
}
456
457
EC_KEY *d2i_ECPrivateKey_fp(FILE *fp, EC_KEY **eckey)
458
0
{
459
0
    return ASN1_d2i_fp_of(EC_KEY, EC_KEY_new, d2i_ECPrivateKey, fp, eckey);
460
0
}
461
462
int i2d_ECPrivateKey_fp(FILE *fp, const EC_KEY *eckey)
463
0
{
464
0
    return ASN1_i2d_fp_of(EC_KEY, i2d_ECPrivateKey, fp, eckey);
465
0
}
466
#endif
467
EC_KEY *d2i_EC_PUBKEY_bio(BIO *bp, EC_KEY **eckey)
468
0
{
469
0
    return ASN1_d2i_bio_of(EC_KEY, EC_KEY_new, d2i_EC_PUBKEY, bp, eckey);
470
0
}
471
472
int i2d_EC_PUBKEY_bio(BIO *bp, const EC_KEY *ecdsa)
473
0
{
474
0
    return ASN1_i2d_bio_of(EC_KEY, i2d_EC_PUBKEY, bp, ecdsa);
475
0
}
476
477
EC_KEY *d2i_ECPrivateKey_bio(BIO *bp, EC_KEY **eckey)
478
0
{
479
0
    return ASN1_d2i_bio_of(EC_KEY, EC_KEY_new, d2i_ECPrivateKey, bp, eckey);
480
0
}
481
482
int i2d_ECPrivateKey_bio(BIO *bp, const EC_KEY *eckey)
483
0
{
484
0
    return ASN1_i2d_bio_of(EC_KEY, i2d_ECPrivateKey, bp, eckey);
485
0
}
486
#endif
487
488
int X509_pubkey_digest(const X509 *data, const EVP_MD *type,
489
    unsigned char *md, unsigned int *len)
490
0
{
491
0
    ASN1_BIT_STRING *key = X509_get0_pubkey_bitstr(data);
492
493
0
    if (key == NULL)
494
0
        return 0;
495
0
    return EVP_Digest(key->data, key->length, md, len, type, NULL);
496
0
}
497
498
int X509_digest(const X509 *cert, const EVP_MD *md, unsigned char *data,
499
    unsigned int *len)
500
0
{
501
0
    if (EVP_MD_is_a(md, SN_sha1) && (cert->ex_flags & EXFLAG_SET) != 0
502
0
        && (cert->ex_flags & EXFLAG_NO_FINGERPRINT) == 0) {
503
        /* Asking for SHA1 and we already computed it. */
504
0
        if (len != NULL)
505
0
            *len = sizeof(cert->sha1_hash);
506
0
        memcpy(data, cert->sha1_hash, sizeof(cert->sha1_hash));
507
0
        return 1;
508
0
    }
509
0
    return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509), md, (char *)cert,
510
0
        data, len, cert->libctx, cert->propq);
511
0
}
512
513
/* calculate cert digest using the same hash algorithm as in its signature */
514
ASN1_OCTET_STRING *X509_digest_sig(const X509 *cert,
515
    EVP_MD **md_used, int *md_is_fallback)
516
0
{
517
0
    unsigned int len;
518
0
    unsigned char hash[EVP_MAX_MD_SIZE];
519
0
    int mdnid, pknid;
520
0
    EVP_MD *md = NULL;
521
0
    const char *md_name;
522
0
    ASN1_OCTET_STRING *new;
523
524
0
    if (md_used != NULL)
525
0
        *md_used = NULL;
526
0
    if (md_is_fallback != NULL)
527
0
        *md_is_fallback = 0;
528
529
0
    if (cert == NULL) {
530
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
531
0
        return NULL;
532
0
    }
533
534
0
    if (!OBJ_find_sigid_algs(X509_get_signature_nid(cert), &mdnid, &pknid)) {
535
0
        ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_SIGID_ALGS);
536
0
        return NULL;
537
0
    }
538
539
0
    if (mdnid == NID_undef) {
540
0
        if (pknid == EVP_PKEY_RSA_PSS) {
541
0
            RSA_PSS_PARAMS *pss = ossl_rsa_pss_decode(&cert->sig_alg);
542
0
            const EVP_MD *mgf1md, *mmd = NULL;
543
0
            int saltlen, trailerfield;
544
545
0
            if (pss == NULL
546
0
                || !ossl_rsa_pss_get_param_unverified(pss, &mmd, &mgf1md,
547
0
                    &saltlen,
548
0
                    &trailerfield)
549
0
                || mmd == NULL) {
550
0
                RSA_PSS_PARAMS_free(pss);
551
0
                ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
552
0
                return NULL;
553
0
            }
554
0
            RSA_PSS_PARAMS_free(pss);
555
            /* Fetch explicitly and do not fallback */
556
0
            if ((md = EVP_MD_fetch(cert->libctx, EVP_MD_get0_name(mmd),
557
0
                     cert->propq))
558
0
                == NULL)
559
                /* Error code from fetch is sufficient */
560
0
                return NULL;
561
0
        } else if (pknid != NID_undef) {
562
            /* A known algorithm, but without a digest */
563
0
            switch (pknid) {
564
0
            case NID_ED25519: /* Follow CMS default given in RFC8419 */
565
0
                md_name = "SHA512";
566
0
                break;
567
0
            case NID_ED448: /* Follow CMS default given in RFC8419 */
568
0
                md_name = "SHAKE256";
569
0
                break;
570
0
            default: /* Fall back to SHA-256 */
571
0
                md_name = "SHA256";
572
0
                break;
573
0
            }
574
0
            if ((md = EVP_MD_fetch(cert->libctx, md_name,
575
0
                     cert->propq))
576
0
                == NULL)
577
0
                return NULL;
578
0
            if (md_is_fallback != NULL)
579
0
                *md_is_fallback = 1;
580
0
        } else {
581
            /* A completely unknown algorithm */
582
0
            ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
583
0
            return NULL;
584
0
        }
585
0
    } else if ((md = EVP_MD_fetch(cert->libctx, OBJ_nid2sn(mdnid),
586
0
                    cert->propq))
587
0
            == NULL
588
0
        && (md = (EVP_MD *)EVP_get_digestbynid(mdnid)) == NULL) {
589
0
        ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
590
0
        return NULL;
591
0
    }
592
0
    if (!X509_digest(cert, md, hash, &len)
593
0
        || (new = ASN1_OCTET_STRING_new()) == NULL)
594
0
        goto err;
595
0
    if (ASN1_OCTET_STRING_set(new, hash, len)) {
596
0
        if (md_used != NULL)
597
0
            *md_used = md;
598
0
        else
599
0
            EVP_MD_free(md);
600
0
        return new;
601
0
    }
602
0
    ASN1_OCTET_STRING_free(new);
603
0
err:
604
0
    EVP_MD_free(md);
605
0
    return NULL;
606
0
}
607
608
int X509_CRL_digest(const X509_CRL *data, const EVP_MD *type,
609
    unsigned char *md, unsigned int *len)
610
0
{
611
0
    if (type == NULL) {
612
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
613
0
        return 0;
614
0
    }
615
0
    if (EVP_MD_is_a(type, SN_sha1)
616
0
        && (data->flags & EXFLAG_SET) != 0
617
0
        && (data->flags & EXFLAG_NO_FINGERPRINT) == 0) {
618
        /* Asking for SHA1; always computed in CRL d2i. */
619
0
        if (len != NULL)
620
0
            *len = sizeof(data->sha1_hash);
621
0
        memcpy(md, data->sha1_hash, sizeof(data->sha1_hash));
622
0
        return 1;
623
0
    }
624
0
    return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509_CRL), type, (char *)data,
625
0
        md, len, data->libctx, data->propq);
626
0
}
627
628
int X509_REQ_digest(const X509_REQ *data, const EVP_MD *type,
629
    unsigned char *md, unsigned int *len)
630
0
{
631
0
    return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509_REQ), type, (char *)data,
632
0
        md, len, data->libctx, data->propq);
633
0
}
634
635
int X509_NAME_digest(const X509_NAME *data, const EVP_MD *type,
636
    unsigned char *md, unsigned int *len)
637
0
{
638
0
    return ASN1_item_digest(ASN1_ITEM_rptr(X509_NAME), type, (char *)data,
639
0
        md, len);
640
0
}
641
642
int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
643
    const EVP_MD *type, unsigned char *md,
644
    unsigned int *len)
645
0
{
646
0
    return ASN1_item_digest(ASN1_ITEM_rptr(PKCS7_ISSUER_AND_SERIAL), type,
647
0
        (char *)data, md, len);
648
0
}
649
650
#ifndef OPENSSL_NO_STDIO
651
X509_SIG *d2i_PKCS8_fp(FILE *fp, X509_SIG **p8)
652
0
{
653
0
    return ASN1_d2i_fp_of(X509_SIG, X509_SIG_new, d2i_X509_SIG, fp, p8);
654
0
}
655
656
int i2d_PKCS8_fp(FILE *fp, const X509_SIG *p8)
657
0
{
658
0
    return ASN1_i2d_fp_of(X509_SIG, i2d_X509_SIG, fp, p8);
659
0
}
660
#endif
661
662
X509_SIG *d2i_PKCS8_bio(BIO *bp, X509_SIG **p8)
663
0
{
664
0
    return ASN1_d2i_bio_of(X509_SIG, X509_SIG_new, d2i_X509_SIG, bp, p8);
665
0
}
666
667
int i2d_PKCS8_bio(BIO *bp, const X509_SIG *p8)
668
0
{
669
0
    return ASN1_i2d_bio_of(X509_SIG, i2d_X509_SIG, bp, p8);
670
0
}
671
672
#ifndef OPENSSL_NO_STDIO
673
X509_PUBKEY *d2i_X509_PUBKEY_fp(FILE *fp, X509_PUBKEY **xpk)
674
0
{
675
0
    return ASN1_d2i_fp_of(X509_PUBKEY, X509_PUBKEY_new, d2i_X509_PUBKEY,
676
0
        fp, xpk);
677
0
}
678
679
int i2d_X509_PUBKEY_fp(FILE *fp, const X509_PUBKEY *xpk)
680
0
{
681
0
    return ASN1_i2d_fp_of(X509_PUBKEY, i2d_X509_PUBKEY, fp, xpk);
682
0
}
683
#endif
684
685
X509_PUBKEY *d2i_X509_PUBKEY_bio(BIO *bp, X509_PUBKEY **xpk)
686
0
{
687
0
    return ASN1_d2i_bio_of(X509_PUBKEY, X509_PUBKEY_new, d2i_X509_PUBKEY,
688
0
        bp, xpk);
689
0
}
690
691
int i2d_X509_PUBKEY_bio(BIO *bp, const X509_PUBKEY *xpk)
692
0
{
693
0
    return ASN1_i2d_bio_of(X509_PUBKEY, i2d_X509_PUBKEY, bp, xpk);
694
0
}
695
696
#ifndef OPENSSL_NO_STDIO
697
PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO_fp(FILE *fp,
698
    PKCS8_PRIV_KEY_INFO **p8inf)
699
0
{
700
0
    return ASN1_d2i_fp_of(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_new,
701
0
        d2i_PKCS8_PRIV_KEY_INFO, fp, p8inf);
702
0
}
703
704
int i2d_PKCS8_PRIV_KEY_INFO_fp(FILE *fp, const PKCS8_PRIV_KEY_INFO *p8inf)
705
0
{
706
0
    return ASN1_i2d_fp_of(PKCS8_PRIV_KEY_INFO, i2d_PKCS8_PRIV_KEY_INFO, fp,
707
0
        p8inf);
708
0
}
709
710
int i2d_PKCS8PrivateKeyInfo_fp(FILE *fp, const EVP_PKEY *key)
711
0
{
712
0
    PKCS8_PRIV_KEY_INFO *p8inf;
713
0
    int ret;
714
715
0
    p8inf = EVP_PKEY2PKCS8(key);
716
0
    if (p8inf == NULL)
717
0
        return 0;
718
0
    ret = i2d_PKCS8_PRIV_KEY_INFO_fp(fp, p8inf);
719
0
    PKCS8_PRIV_KEY_INFO_free(p8inf);
720
0
    return ret;
721
0
}
722
723
int i2d_PrivateKey_fp(FILE *fp, const EVP_PKEY *pkey)
724
0
{
725
0
    return ASN1_i2d_fp_of(EVP_PKEY, i2d_PrivateKey, fp, pkey);
726
0
}
727
728
EVP_PKEY *d2i_PrivateKey_fp(FILE *fp, EVP_PKEY **a)
729
0
{
730
0
    return ASN1_d2i_fp_of(EVP_PKEY, EVP_PKEY_new, d2i_AutoPrivateKey, fp, a);
731
0
}
732
733
EVP_PKEY *d2i_PrivateKey_ex_fp(FILE *fp, EVP_PKEY **a, OSSL_LIB_CTX *libctx,
734
    const char *propq)
735
0
{
736
0
    BIO *b;
737
0
    void *ret;
738
739
0
    if ((b = BIO_new(BIO_s_file())) == NULL) {
740
0
        ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
741
0
        return NULL;
742
0
    }
743
0
    BIO_set_fp(b, fp, BIO_NOCLOSE);
744
0
    ret = d2i_PrivateKey_ex_bio(b, a, libctx, propq);
745
0
    BIO_free(b);
746
0
    return ret;
747
0
}
748
749
int i2d_PUBKEY_fp(FILE *fp, const EVP_PKEY *pkey)
750
0
{
751
0
    return ASN1_i2d_fp_of(EVP_PKEY, i2d_PUBKEY, fp, pkey);
752
0
}
753
754
EVP_PKEY *d2i_PUBKEY_ex_fp(FILE *fp, EVP_PKEY **a, OSSL_LIB_CTX *libctx,
755
    const char *propq)
756
0
{
757
0
    BIO *b;
758
0
    void *ret;
759
760
0
    if ((b = BIO_new(BIO_s_file())) == NULL) {
761
0
        ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
762
0
        return NULL;
763
0
    }
764
0
    BIO_set_fp(b, fp, BIO_NOCLOSE);
765
0
    ret = d2i_PUBKEY_ex_bio(b, a, libctx, propq);
766
0
    BIO_free(b);
767
0
    return ret;
768
0
}
769
770
EVP_PKEY *d2i_PUBKEY_fp(FILE *fp, EVP_PKEY **a)
771
0
{
772
0
    return ASN1_d2i_fp_of(EVP_PKEY, EVP_PKEY_new, d2i_PUBKEY, fp, a);
773
0
}
774
775
#endif
776
777
PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO_bio(BIO *bp,
778
    PKCS8_PRIV_KEY_INFO **p8inf)
779
0
{
780
0
    return ASN1_d2i_bio_of(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_new,
781
0
        d2i_PKCS8_PRIV_KEY_INFO, bp, p8inf);
782
0
}
783
784
int i2d_PKCS8_PRIV_KEY_INFO_bio(BIO *bp, const PKCS8_PRIV_KEY_INFO *p8inf)
785
0
{
786
0
    return ASN1_i2d_bio_of(PKCS8_PRIV_KEY_INFO, i2d_PKCS8_PRIV_KEY_INFO, bp,
787
0
        p8inf);
788
0
}
789
790
int i2d_PKCS8PrivateKeyInfo_bio(BIO *bp, const EVP_PKEY *key)
791
0
{
792
0
    PKCS8_PRIV_KEY_INFO *p8inf;
793
0
    int ret;
794
795
0
    p8inf = EVP_PKEY2PKCS8(key);
796
0
    if (p8inf == NULL)
797
0
        return 0;
798
0
    ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
799
0
    PKCS8_PRIV_KEY_INFO_free(p8inf);
800
0
    return ret;
801
0
}
802
803
int i2d_PrivateKey_bio(BIO *bp, const EVP_PKEY *pkey)
804
0
{
805
0
    return ASN1_i2d_bio_of(EVP_PKEY, i2d_PrivateKey, bp, pkey);
806
0
}
807
808
EVP_PKEY *d2i_PrivateKey_bio(BIO *bp, EVP_PKEY **a)
809
0
{
810
0
    return ASN1_d2i_bio_of(EVP_PKEY, EVP_PKEY_new, d2i_AutoPrivateKey, bp, a);
811
0
}
812
813
EVP_PKEY *d2i_PrivateKey_ex_bio(BIO *bp, EVP_PKEY **a, OSSL_LIB_CTX *libctx,
814
    const char *propq)
815
0
{
816
0
    BUF_MEM *b = NULL;
817
0
    const unsigned char *p;
818
0
    void *ret = NULL;
819
0
    int len;
820
821
0
    len = asn1_d2i_read_bio(bp, &b);
822
0
    if (len < 0)
823
0
        goto err;
824
825
0
    p = (unsigned char *)b->data;
826
0
    ret = d2i_AutoPrivateKey_ex(a, &p, len, libctx, propq);
827
0
err:
828
0
    BUF_MEM_free(b);
829
0
    return ret;
830
0
}
831
832
int i2d_PUBKEY_bio(BIO *bp, const EVP_PKEY *pkey)
833
0
{
834
0
    return ASN1_i2d_bio_of(EVP_PKEY, i2d_PUBKEY, bp, pkey);
835
0
}
836
837
EVP_PKEY *d2i_PUBKEY_ex_bio(BIO *bp, EVP_PKEY **a, OSSL_LIB_CTX *libctx,
838
    const char *propq)
839
0
{
840
0
    BUF_MEM *b = NULL;
841
0
    const unsigned char *p;
842
0
    void *ret = NULL;
843
0
    int len;
844
845
0
    len = asn1_d2i_read_bio(bp, &b);
846
0
    if (len < 0)
847
0
        goto err;
848
849
0
    p = (unsigned char *)b->data;
850
0
    ret = d2i_PUBKEY_ex(a, &p, len, libctx, propq);
851
0
err:
852
0
    BUF_MEM_free(b);
853
0
    return ret;
854
0
}
855
856
EVP_PKEY *d2i_PUBKEY_bio(BIO *bp, EVP_PKEY **a)
857
0
{
858
0
    return ASN1_d2i_bio_of(EVP_PKEY, EVP_PKEY_new, d2i_PUBKEY, bp, a);
859
0
}
860
861
#ifndef OPENSSL_NO_STDIO
862
X509_ACERT *d2i_X509_ACERT_fp(FILE *fp, X509_ACERT **acert)
863
0
{
864
0
    return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509_ACERT), fp, acert);
865
0
}
866
867
int i2d_X509_ACERT_fp(FILE *fp, const X509_ACERT *acert)
868
0
{
869
0
    return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509_ACERT), fp, acert);
870
0
}
871
#endif
872
873
X509_ACERT *d2i_X509_ACERT_bio(BIO *bp, X509_ACERT **acert)
874
0
{
875
0
    return ASN1_item_d2i_bio(ASN1_ITEM_rptr(X509_ACERT), bp, acert);
876
0
}
877
878
int i2d_X509_ACERT_bio(BIO *bp, const X509_ACERT *acert)
879
0
{
880
0
    return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509_ACERT), bp, acert);
881
0
}