1 /*
2 * Copyright 1995-2022 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/http.h>
23 #include <openssl/rsa.h>
24 #include <openssl/dsa.h>
25 #include <openssl/x509v3.h>
26 #include "internal/asn1.h"
27 #include "crypto/pkcs7.h"
28 #include "crypto/x509.h"
29 #include "crypto/rsa.h"
30
X509_verify(X509 * a,EVP_PKEY * r)31 int X509_verify(X509 *a, EVP_PKEY *r)
32 {
33 if (X509_ALGOR_cmp(&a->sig_alg, &a->cert_info.signature) != 0)
34 return 0;
35
36 return ASN1_item_verify_ex(ASN1_ITEM_rptr(X509_CINF), &a->sig_alg,
37 &a->signature, &a->cert_info,
38 a->distinguishing_id, r, a->libctx, a->propq);
39 }
40
X509_REQ_verify_ex(X509_REQ * a,EVP_PKEY * r,OSSL_LIB_CTX * libctx,const char * propq)41 int X509_REQ_verify_ex(X509_REQ *a, EVP_PKEY *r, OSSL_LIB_CTX *libctx,
42 const char *propq)
43 {
44 return ASN1_item_verify_ex(ASN1_ITEM_rptr(X509_REQ_INFO), &a->sig_alg,
45 a->signature, &a->req_info, a->distinguishing_id,
46 r, libctx, propq);
47 }
48
X509_REQ_verify(X509_REQ * a,EVP_PKEY * r)49 int X509_REQ_verify(X509_REQ *a, EVP_PKEY *r)
50 {
51 return X509_REQ_verify_ex(a, r, NULL, NULL);
52 }
53
NETSCAPE_SPKI_verify(NETSCAPE_SPKI * a,EVP_PKEY * r)54 int NETSCAPE_SPKI_verify(NETSCAPE_SPKI *a, EVP_PKEY *r)
55 {
56 return ASN1_item_verify(ASN1_ITEM_rptr(NETSCAPE_SPKAC),
57 &a->sig_algor, a->signature, a->spkac, r);
58 }
59
X509_sign(X509 * x,EVP_PKEY * pkey,const EVP_MD * md)60 int X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
61 {
62 if (x == NULL) {
63 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
64 return 0;
65 }
66
67 /*
68 * Setting the modified flag before signing it. This makes the cached
69 * encoding to be ignored, so even if the certificate fields have changed,
70 * they are signed correctly.
71 * The X509_sign_ctx, X509_REQ_sign{,_ctx}, X509_CRL_sign{,_ctx} functions
72 * which exist below are the same.
73 */
74 x->cert_info.enc.modified = 1;
75 return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_CINF), &x->cert_info.signature,
76 &x->sig_alg, &x->signature, &x->cert_info, NULL,
77 pkey, md, x->libctx, x->propq);
78 }
79
X509_sign_ctx(X509 * x,EVP_MD_CTX * ctx)80 int X509_sign_ctx(X509 *x, EVP_MD_CTX *ctx)
81 {
82 if (x == NULL) {
83 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
84 return 0;
85 }
86 x->cert_info.enc.modified = 1;
87 return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_CINF),
88 &x->cert_info.signature,
89 &x->sig_alg, &x->signature, &x->cert_info, ctx);
90 }
91
simple_get_asn1(const char * url,BIO * bio,BIO * rbio,int timeout,const ASN1_ITEM * it)92 static ASN1_VALUE *simple_get_asn1(const char *url, BIO *bio, BIO *rbio,
93 int timeout, const ASN1_ITEM *it)
94 {
95 size_t max_resp_len = (it == ASN1_ITEM_rptr(X509_CRL)) ?
96 OSSL_HTTP_DEFAULT_MAX_CRL_LEN : OSSL_HTTP_DEFAULT_MAX_RESP_LEN;
97 BIO *mem = OSSL_HTTP_get(url, NULL /* proxy */, NULL /* no_proxy */,
98 bio, rbio, NULL /* cb */, NULL /* arg */,
99 1024 /* buf_size */, NULL /* headers */,
100 NULL /* expected_ct */, 1 /* expect_asn1 */,
101 max_resp_len, timeout);
102 ASN1_VALUE *res = ASN1_item_d2i_bio(it, mem, NULL);
103
104 BIO_free(mem);
105 return res;
106 }
107
X509_load_http(const char * url,BIO * bio,BIO * rbio,int timeout)108 X509 *X509_load_http(const char *url, BIO *bio, BIO *rbio, int timeout)
109 {
110 return (X509 *)simple_get_asn1(url, bio, rbio, timeout,
111 ASN1_ITEM_rptr(X509));
112 }
113
X509_REQ_sign(X509_REQ * x,EVP_PKEY * pkey,const EVP_MD * md)114 int X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md)
115 {
116 if (x == NULL) {
117 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
118 return 0;
119 }
120 x->req_info.enc.modified = 1;
121 return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_REQ_INFO), &x->sig_alg, NULL,
122 x->signature, &x->req_info, NULL,
123 pkey, md, x->libctx, x->propq);
124 }
125
X509_REQ_sign_ctx(X509_REQ * x,EVP_MD_CTX * ctx)126 int X509_REQ_sign_ctx(X509_REQ *x, EVP_MD_CTX *ctx)
127 {
128 if (x == NULL) {
129 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
130 return 0;
131 }
132 x->req_info.enc.modified = 1;
133 return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_REQ_INFO),
134 &x->sig_alg, NULL, x->signature, &x->req_info,
135 ctx);
136 }
137
X509_CRL_sign(X509_CRL * x,EVP_PKEY * pkey,const EVP_MD * md)138 int X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md)
139 {
140 if (x == NULL) {
141 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
142 return 0;
143 }
144 x->crl.enc.modified = 1;
145 return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_CRL_INFO), &x->crl.sig_alg,
146 &x->sig_alg, &x->signature, &x->crl, NULL,
147 pkey, md, x->libctx, x->propq);
148 }
149
X509_CRL_sign_ctx(X509_CRL * x,EVP_MD_CTX * ctx)150 int X509_CRL_sign_ctx(X509_CRL *x, EVP_MD_CTX *ctx)
151 {
152 if (x == NULL) {
153 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
154 return 0;
155 }
156 x->crl.enc.modified = 1;
157 return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_CRL_INFO),
158 &x->crl.sig_alg, &x->sig_alg, &x->signature,
159 &x->crl, ctx);
160 }
161
X509_CRL_load_http(const char * url,BIO * bio,BIO * rbio,int timeout)162 X509_CRL *X509_CRL_load_http(const char *url, BIO *bio, BIO *rbio, int timeout)
163 {
164 return (X509_CRL *)simple_get_asn1(url, bio, rbio, timeout,
165 ASN1_ITEM_rptr(X509_CRL));
166 }
167
NETSCAPE_SPKI_sign(NETSCAPE_SPKI * x,EVP_PKEY * pkey,const EVP_MD * md)168 int NETSCAPE_SPKI_sign(NETSCAPE_SPKI *x, EVP_PKEY *pkey, const EVP_MD *md)
169 {
170 return
171 ASN1_item_sign_ex(ASN1_ITEM_rptr(NETSCAPE_SPKAC), &x->sig_algor, NULL,
172 x->signature, x->spkac, NULL, pkey, md, NULL, NULL);
173 }
174
175 #ifndef OPENSSL_NO_STDIO
d2i_X509_fp(FILE * fp,X509 ** x509)176 X509 *d2i_X509_fp(FILE *fp, X509 **x509)
177 {
178 return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509), fp, x509);
179 }
180
i2d_X509_fp(FILE * fp,const X509 * x509)181 int i2d_X509_fp(FILE *fp, const X509 *x509)
182 {
183 return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509), fp, x509);
184 }
185 #endif
186
d2i_X509_bio(BIO * bp,X509 ** x509)187 X509 *d2i_X509_bio(BIO *bp, X509 **x509)
188 {
189 return ASN1_item_d2i_bio(ASN1_ITEM_rptr(X509), bp, x509);
190 }
191
i2d_X509_bio(BIO * bp,const X509 * x509)192 int i2d_X509_bio(BIO *bp, const X509 *x509)
193 {
194 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509), bp, x509);
195 }
196
197 #ifndef OPENSSL_NO_STDIO
d2i_X509_CRL_fp(FILE * fp,X509_CRL ** crl)198 X509_CRL *d2i_X509_CRL_fp(FILE *fp, X509_CRL **crl)
199 {
200 return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509_CRL), fp, crl);
201 }
202
i2d_X509_CRL_fp(FILE * fp,const X509_CRL * crl)203 int i2d_X509_CRL_fp(FILE *fp, const X509_CRL *crl)
204 {
205 return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509_CRL), fp, crl);
206 }
207 #endif
208
d2i_X509_CRL_bio(BIO * bp,X509_CRL ** crl)209 X509_CRL *d2i_X509_CRL_bio(BIO *bp, X509_CRL **crl)
210 {
211 return ASN1_item_d2i_bio(ASN1_ITEM_rptr(X509_CRL), bp, crl);
212 }
213
i2d_X509_CRL_bio(BIO * bp,const X509_CRL * crl)214 int i2d_X509_CRL_bio(BIO *bp, const X509_CRL *crl)
215 {
216 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509_CRL), bp, crl);
217 }
218
219 #ifndef OPENSSL_NO_STDIO
d2i_PKCS7_fp(FILE * fp,PKCS7 ** p7)220 PKCS7 *d2i_PKCS7_fp(FILE *fp, PKCS7 **p7)
221 {
222 PKCS7 *ret;
223 OSSL_LIB_CTX *libctx = NULL;
224 const char *propq = NULL;
225
226 if (p7 != NULL && *p7 != NULL) {
227 libctx = (*p7)->ctx.libctx;
228 propq = (*p7)->ctx.propq;
229 }
230
231 ret = ASN1_item_d2i_fp_ex(ASN1_ITEM_rptr(PKCS7), fp, p7, libctx, propq);
232 if (ret != NULL)
233 ossl_pkcs7_resolve_libctx(ret);
234 return ret;
235 }
236
i2d_PKCS7_fp(FILE * fp,const PKCS7 * p7)237 int i2d_PKCS7_fp(FILE *fp, const PKCS7 *p7)
238 {
239 return ASN1_item_i2d_fp(ASN1_ITEM_rptr(PKCS7), fp, p7);
240 }
241 #endif
242
d2i_PKCS7_bio(BIO * bp,PKCS7 ** p7)243 PKCS7 *d2i_PKCS7_bio(BIO *bp, PKCS7 **p7)
244 {
245 PKCS7 *ret;
246 OSSL_LIB_CTX *libctx = NULL;
247 const char *propq = NULL;
248
249 if (p7 != NULL && *p7 != NULL) {
250 libctx = (*p7)->ctx.libctx;
251 propq = (*p7)->ctx.propq;
252 }
253
254 ret = ASN1_item_d2i_bio_ex(ASN1_ITEM_rptr(PKCS7), bp, p7, libctx, propq);
255 if (ret != NULL)
256 ossl_pkcs7_resolve_libctx(ret);
257 return ret;
258 }
259
i2d_PKCS7_bio(BIO * bp,const PKCS7 * p7)260 int i2d_PKCS7_bio(BIO *bp, const PKCS7 *p7)
261 {
262 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(PKCS7), bp, p7);
263 }
264
265 #ifndef OPENSSL_NO_STDIO
d2i_X509_REQ_fp(FILE * fp,X509_REQ ** req)266 X509_REQ *d2i_X509_REQ_fp(FILE *fp, X509_REQ **req)
267 {
268 return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509_REQ), fp, req);
269 }
270
i2d_X509_REQ_fp(FILE * fp,const X509_REQ * req)271 int i2d_X509_REQ_fp(FILE *fp, const X509_REQ *req)
272 {
273 return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509_REQ), fp, req);
274 }
275 #endif
276
d2i_X509_REQ_bio(BIO * bp,X509_REQ ** req)277 X509_REQ *d2i_X509_REQ_bio(BIO *bp, X509_REQ **req)
278 {
279 OSSL_LIB_CTX *libctx = NULL;
280 const char *propq = NULL;
281
282 if (req != NULL && *req != NULL) {
283 libctx = (*req)->libctx;
284 propq = (*req)->propq;
285 }
286
287 return ASN1_item_d2i_bio_ex(ASN1_ITEM_rptr(X509_REQ), bp, req, libctx, propq);
288 }
289
i2d_X509_REQ_bio(BIO * bp,const X509_REQ * req)290 int i2d_X509_REQ_bio(BIO *bp, const X509_REQ *req)
291 {
292 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509_REQ), bp, req);
293 }
294
295 #ifndef OPENSSL_NO_STDIO
d2i_RSAPrivateKey_fp(FILE * fp,RSA ** rsa)296 RSA *d2i_RSAPrivateKey_fp(FILE *fp, RSA **rsa)
297 {
298 return ASN1_item_d2i_fp(ASN1_ITEM_rptr(RSAPrivateKey), fp, rsa);
299 }
300
i2d_RSAPrivateKey_fp(FILE * fp,const RSA * rsa)301 int i2d_RSAPrivateKey_fp(FILE *fp, const RSA *rsa)
302 {
303 return ASN1_item_i2d_fp(ASN1_ITEM_rptr(RSAPrivateKey), fp, rsa);
304 }
305
d2i_RSAPublicKey_fp(FILE * fp,RSA ** rsa)306 RSA *d2i_RSAPublicKey_fp(FILE *fp, RSA **rsa)
307 {
308 return ASN1_item_d2i_fp(ASN1_ITEM_rptr(RSAPublicKey), fp, rsa);
309 }
310
d2i_RSA_PUBKEY_fp(FILE * fp,RSA ** rsa)311 RSA *d2i_RSA_PUBKEY_fp(FILE *fp, RSA **rsa)
312 {
313 return ASN1_d2i_fp((void *(*)(void))
314 RSA_new, (D2I_OF(void)) d2i_RSA_PUBKEY, fp,
315 (void **)rsa);
316 }
317
i2d_RSAPublicKey_fp(FILE * fp,const RSA * rsa)318 int i2d_RSAPublicKey_fp(FILE *fp, const RSA *rsa)
319 {
320 return ASN1_item_i2d_fp(ASN1_ITEM_rptr(RSAPublicKey), fp, rsa);
321 }
322
i2d_RSA_PUBKEY_fp(FILE * fp,const RSA * rsa)323 int i2d_RSA_PUBKEY_fp(FILE *fp, const RSA *rsa)
324 {
325 return ASN1_i2d_fp((I2D_OF(void))i2d_RSA_PUBKEY, fp, rsa);
326 }
327 #endif
328
d2i_RSAPrivateKey_bio(BIO * bp,RSA ** rsa)329 RSA *d2i_RSAPrivateKey_bio(BIO *bp, RSA **rsa)
330 {
331 return ASN1_item_d2i_bio(ASN1_ITEM_rptr(RSAPrivateKey), bp, rsa);
332 }
333
i2d_RSAPrivateKey_bio(BIO * bp,const RSA * rsa)334 int i2d_RSAPrivateKey_bio(BIO *bp, const RSA *rsa)
335 {
336 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(RSAPrivateKey), bp, rsa);
337 }
338
d2i_RSAPublicKey_bio(BIO * bp,RSA ** rsa)339 RSA *d2i_RSAPublicKey_bio(BIO *bp, RSA **rsa)
340 {
341 return ASN1_item_d2i_bio(ASN1_ITEM_rptr(RSAPublicKey), bp, rsa);
342 }
343
d2i_RSA_PUBKEY_bio(BIO * bp,RSA ** rsa)344 RSA *d2i_RSA_PUBKEY_bio(BIO *bp, RSA **rsa)
345 {
346 return ASN1_d2i_bio_of(RSA, RSA_new, d2i_RSA_PUBKEY, bp, rsa);
347 }
348
i2d_RSAPublicKey_bio(BIO * bp,const RSA * rsa)349 int i2d_RSAPublicKey_bio(BIO *bp, const RSA *rsa)
350 {
351 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(RSAPublicKey), bp, rsa);
352 }
353
i2d_RSA_PUBKEY_bio(BIO * bp,const RSA * rsa)354 int i2d_RSA_PUBKEY_bio(BIO *bp, const RSA *rsa)
355 {
356 return ASN1_i2d_bio_of(RSA, i2d_RSA_PUBKEY, bp, rsa);
357 }
358
359 #ifndef OPENSSL_NO_DSA
360 # ifndef OPENSSL_NO_STDIO
d2i_DSAPrivateKey_fp(FILE * fp,DSA ** dsa)361 DSA *d2i_DSAPrivateKey_fp(FILE *fp, DSA **dsa)
362 {
363 return ASN1_d2i_fp_of(DSA, DSA_new, d2i_DSAPrivateKey, fp, dsa);
364 }
365
i2d_DSAPrivateKey_fp(FILE * fp,const DSA * dsa)366 int i2d_DSAPrivateKey_fp(FILE *fp, const DSA *dsa)
367 {
368 return ASN1_i2d_fp_of(DSA, i2d_DSAPrivateKey, fp, dsa);
369 }
370
d2i_DSA_PUBKEY_fp(FILE * fp,DSA ** dsa)371 DSA *d2i_DSA_PUBKEY_fp(FILE *fp, DSA **dsa)
372 {
373 return ASN1_d2i_fp_of(DSA, DSA_new, d2i_DSA_PUBKEY, fp, dsa);
374 }
375
i2d_DSA_PUBKEY_fp(FILE * fp,const DSA * dsa)376 int i2d_DSA_PUBKEY_fp(FILE *fp, const DSA *dsa)
377 {
378 return ASN1_i2d_fp_of(DSA, i2d_DSA_PUBKEY, fp, dsa);
379 }
380 # endif
381
d2i_DSAPrivateKey_bio(BIO * bp,DSA ** dsa)382 DSA *d2i_DSAPrivateKey_bio(BIO *bp, DSA **dsa)
383 {
384 return ASN1_d2i_bio_of(DSA, DSA_new, d2i_DSAPrivateKey, bp, dsa);
385 }
386
i2d_DSAPrivateKey_bio(BIO * bp,const DSA * dsa)387 int i2d_DSAPrivateKey_bio(BIO *bp, const DSA *dsa)
388 {
389 return ASN1_i2d_bio_of(DSA, i2d_DSAPrivateKey, bp, dsa);
390 }
391
d2i_DSA_PUBKEY_bio(BIO * bp,DSA ** dsa)392 DSA *d2i_DSA_PUBKEY_bio(BIO *bp, DSA **dsa)
393 {
394 return ASN1_d2i_bio_of(DSA, DSA_new, d2i_DSA_PUBKEY, bp, dsa);
395 }
396
i2d_DSA_PUBKEY_bio(BIO * bp,const DSA * dsa)397 int i2d_DSA_PUBKEY_bio(BIO *bp, const DSA *dsa)
398 {
399 return ASN1_i2d_bio_of(DSA, i2d_DSA_PUBKEY, bp, dsa);
400 }
401
402 #endif
403
404 #ifndef OPENSSL_NO_EC
405 # ifndef OPENSSL_NO_STDIO
d2i_EC_PUBKEY_fp(FILE * fp,EC_KEY ** eckey)406 EC_KEY *d2i_EC_PUBKEY_fp(FILE *fp, EC_KEY **eckey)
407 {
408 return ASN1_d2i_fp_of(EC_KEY, EC_KEY_new, d2i_EC_PUBKEY, fp, eckey);
409 }
410
i2d_EC_PUBKEY_fp(FILE * fp,const EC_KEY * eckey)411 int i2d_EC_PUBKEY_fp(FILE *fp, const EC_KEY *eckey)
412 {
413 return ASN1_i2d_fp_of(EC_KEY, i2d_EC_PUBKEY, fp, eckey);
414 }
415
d2i_ECPrivateKey_fp(FILE * fp,EC_KEY ** eckey)416 EC_KEY *d2i_ECPrivateKey_fp(FILE *fp, EC_KEY **eckey)
417 {
418 return ASN1_d2i_fp_of(EC_KEY, EC_KEY_new, d2i_ECPrivateKey, fp, eckey);
419 }
420
i2d_ECPrivateKey_fp(FILE * fp,const EC_KEY * eckey)421 int i2d_ECPrivateKey_fp(FILE *fp, const EC_KEY *eckey)
422 {
423 return ASN1_i2d_fp_of(EC_KEY, i2d_ECPrivateKey, fp, eckey);
424 }
425 # endif
d2i_EC_PUBKEY_bio(BIO * bp,EC_KEY ** eckey)426 EC_KEY *d2i_EC_PUBKEY_bio(BIO *bp, EC_KEY **eckey)
427 {
428 return ASN1_d2i_bio_of(EC_KEY, EC_KEY_new, d2i_EC_PUBKEY, bp, eckey);
429 }
430
i2d_EC_PUBKEY_bio(BIO * bp,const EC_KEY * ecdsa)431 int i2d_EC_PUBKEY_bio(BIO *bp, const EC_KEY *ecdsa)
432 {
433 return ASN1_i2d_bio_of(EC_KEY, i2d_EC_PUBKEY, bp, ecdsa);
434 }
435
d2i_ECPrivateKey_bio(BIO * bp,EC_KEY ** eckey)436 EC_KEY *d2i_ECPrivateKey_bio(BIO *bp, EC_KEY **eckey)
437 {
438 return ASN1_d2i_bio_of(EC_KEY, EC_KEY_new, d2i_ECPrivateKey, bp, eckey);
439 }
440
i2d_ECPrivateKey_bio(BIO * bp,const EC_KEY * eckey)441 int i2d_ECPrivateKey_bio(BIO *bp, const EC_KEY *eckey)
442 {
443 return ASN1_i2d_bio_of(EC_KEY, i2d_ECPrivateKey, bp, eckey);
444 }
445 #endif
446
X509_pubkey_digest(const X509 * data,const EVP_MD * type,unsigned char * md,unsigned int * len)447 int X509_pubkey_digest(const X509 *data, const EVP_MD *type,
448 unsigned char *md, unsigned int *len)
449 {
450 ASN1_BIT_STRING *key = X509_get0_pubkey_bitstr(data);
451
452 if (key == NULL)
453 return 0;
454 return EVP_Digest(key->data, key->length, md, len, type, NULL);
455 }
456
X509_digest(const X509 * cert,const EVP_MD * md,unsigned char * data,unsigned int * len)457 int X509_digest(const X509 *cert, const EVP_MD *md, unsigned char *data,
458 unsigned int *len)
459 {
460 if (EVP_MD_is_a(md, SN_sha1) && (cert->ex_flags & EXFLAG_SET) != 0
461 && (cert->ex_flags & EXFLAG_NO_FINGERPRINT) == 0) {
462 /* Asking for SHA1 and we already computed it. */
463 if (len != NULL)
464 *len = sizeof(cert->sha1_hash);
465 memcpy(data, cert->sha1_hash, sizeof(cert->sha1_hash));
466 return 1;
467 }
468 return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509), md, (char *)cert,
469 data, len, cert->libctx, cert->propq);
470 }
471
472 /* calculate cert digest using the same hash algorithm as in its signature */
X509_digest_sig(const X509 * cert,EVP_MD ** md_used,int * md_is_fallback)473 ASN1_OCTET_STRING *X509_digest_sig(const X509 *cert,
474 EVP_MD **md_used, int *md_is_fallback)
475 {
476 unsigned int len;
477 unsigned char hash[EVP_MAX_MD_SIZE];
478 int mdnid, pknid;
479 EVP_MD *md = NULL;
480 const char *md_name;
481 ASN1_OCTET_STRING *new;
482
483 if (md_used != NULL)
484 *md_used = NULL;
485 if (md_is_fallback != NULL)
486 *md_is_fallback = 0;
487
488 if (cert == NULL) {
489 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
490 return NULL;
491 }
492
493 if (!OBJ_find_sigid_algs(X509_get_signature_nid(cert), &mdnid, &pknid)) {
494 ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_SIGID_ALGS);
495 return NULL;
496 }
497
498 if (mdnid == NID_undef) {
499 if (pknid == EVP_PKEY_RSA_PSS) {
500 RSA_PSS_PARAMS *pss = ossl_rsa_pss_decode(&cert->sig_alg);
501 const EVP_MD *mgf1md, *mmd = NULL;
502 int saltlen, trailerfield;
503
504 if (pss == NULL
505 || !ossl_rsa_pss_get_param_unverified(pss, &mmd, &mgf1md,
506 &saltlen,
507 &trailerfield)
508 || mmd == NULL) {
509 RSA_PSS_PARAMS_free(pss);
510 ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
511 return NULL;
512 }
513 RSA_PSS_PARAMS_free(pss);
514 /* Fetch explicitly and do not fallback */
515 if ((md = EVP_MD_fetch(cert->libctx, EVP_MD_get0_name(mmd),
516 cert->propq)) == NULL)
517 /* Error code from fetch is sufficient */
518 return NULL;
519 } else if (pknid != NID_undef) {
520 /* A known algorithm, but without a digest */
521 switch (pknid) {
522 case NID_ED25519: /* Follow CMS default given in RFC8419 */
523 md_name = "SHA512";
524 break;
525 case NID_ED448: /* Follow CMS default given in RFC8419 */
526 md_name = "SHAKE256";
527 break;
528 default: /* Fall back to SHA-256 */
529 md_name = "SHA256";
530 break;
531 }
532 if ((md = EVP_MD_fetch(cert->libctx, md_name,
533 cert->propq)) == NULL)
534 return NULL;
535 if (md_is_fallback != NULL)
536 *md_is_fallback = 1;
537 } else {
538 /* A completely unknown algorithm */
539 ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
540 return NULL;
541 }
542 } else if ((md = EVP_MD_fetch(cert->libctx, OBJ_nid2sn(mdnid),
543 cert->propq)) == NULL
544 && (md = (EVP_MD *)EVP_get_digestbynid(mdnid)) == NULL) {
545 ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
546 return NULL;
547 }
548 if (!X509_digest(cert, md, hash, &len)
549 || (new = ASN1_OCTET_STRING_new()) == NULL)
550 goto err;
551 if (ASN1_OCTET_STRING_set(new, hash, len)) {
552 if (md_used != NULL)
553 *md_used = md;
554 else
555 EVP_MD_free(md);
556 return new;
557 }
558 ASN1_OCTET_STRING_free(new);
559 err:
560 EVP_MD_free(md);
561 return NULL;
562 }
563
X509_CRL_digest(const X509_CRL * data,const EVP_MD * type,unsigned char * md,unsigned int * len)564 int X509_CRL_digest(const X509_CRL *data, const EVP_MD *type,
565 unsigned char *md, unsigned int *len)
566 {
567 if (type == NULL) {
568 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
569 return 0;
570 }
571 if (EVP_MD_is_a(type, SN_sha1)
572 && (data->flags & EXFLAG_SET) != 0
573 && (data->flags & EXFLAG_NO_FINGERPRINT) == 0) {
574 /* Asking for SHA1; always computed in CRL d2i. */
575 if (len != NULL)
576 *len = sizeof(data->sha1_hash);
577 memcpy(md, data->sha1_hash, sizeof(data->sha1_hash));
578 return 1;
579 }
580 return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509_CRL), type, (char *)data,
581 md, len, data->libctx, data->propq);
582 }
583
X509_REQ_digest(const X509_REQ * data,const EVP_MD * type,unsigned char * md,unsigned int * len)584 int X509_REQ_digest(const X509_REQ *data, const EVP_MD *type,
585 unsigned char *md, unsigned int *len)
586 {
587 return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509_REQ), type, (char *)data,
588 md, len, data->libctx, data->propq);
589 }
590
X509_NAME_digest(const X509_NAME * data,const EVP_MD * type,unsigned char * md,unsigned int * len)591 int X509_NAME_digest(const X509_NAME *data, const EVP_MD *type,
592 unsigned char *md, unsigned int *len)
593 {
594 return ASN1_item_digest(ASN1_ITEM_rptr(X509_NAME), type, (char *)data,
595 md, len);
596 }
597
PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL * data,const EVP_MD * type,unsigned char * md,unsigned int * len)598 int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
599 const EVP_MD *type, unsigned char *md,
600 unsigned int *len)
601 {
602 return ASN1_item_digest(ASN1_ITEM_rptr(PKCS7_ISSUER_AND_SERIAL), type,
603 (char *)data, md, len);
604 }
605
606 #ifndef OPENSSL_NO_STDIO
d2i_PKCS8_fp(FILE * fp,X509_SIG ** p8)607 X509_SIG *d2i_PKCS8_fp(FILE *fp, X509_SIG **p8)
608 {
609 return ASN1_d2i_fp_of(X509_SIG, X509_SIG_new, d2i_X509_SIG, fp, p8);
610 }
611
i2d_PKCS8_fp(FILE * fp,const X509_SIG * p8)612 int i2d_PKCS8_fp(FILE *fp, const X509_SIG *p8)
613 {
614 return ASN1_i2d_fp_of(X509_SIG, i2d_X509_SIG, fp, p8);
615 }
616 #endif
617
d2i_PKCS8_bio(BIO * bp,X509_SIG ** p8)618 X509_SIG *d2i_PKCS8_bio(BIO *bp, X509_SIG **p8)
619 {
620 return ASN1_d2i_bio_of(X509_SIG, X509_SIG_new, d2i_X509_SIG, bp, p8);
621 }
622
i2d_PKCS8_bio(BIO * bp,const X509_SIG * p8)623 int i2d_PKCS8_bio(BIO *bp, const X509_SIG *p8)
624 {
625 return ASN1_i2d_bio_of(X509_SIG, i2d_X509_SIG, bp, p8);
626 }
627
628 #ifndef OPENSSL_NO_STDIO
d2i_X509_PUBKEY_fp(FILE * fp,X509_PUBKEY ** xpk)629 X509_PUBKEY *d2i_X509_PUBKEY_fp(FILE *fp, X509_PUBKEY **xpk)
630 {
631 return ASN1_d2i_fp_of(X509_PUBKEY, X509_PUBKEY_new, d2i_X509_PUBKEY,
632 fp, xpk);
633 }
634
i2d_X509_PUBKEY_fp(FILE * fp,const X509_PUBKEY * xpk)635 int i2d_X509_PUBKEY_fp(FILE *fp, const X509_PUBKEY *xpk)
636 {
637 return ASN1_i2d_fp_of(X509_PUBKEY, i2d_X509_PUBKEY, fp, xpk);
638 }
639 #endif
640
d2i_X509_PUBKEY_bio(BIO * bp,X509_PUBKEY ** xpk)641 X509_PUBKEY *d2i_X509_PUBKEY_bio(BIO *bp, X509_PUBKEY **xpk)
642 {
643 return ASN1_d2i_bio_of(X509_PUBKEY, X509_PUBKEY_new, d2i_X509_PUBKEY,
644 bp, xpk);
645 }
646
i2d_X509_PUBKEY_bio(BIO * bp,const X509_PUBKEY * xpk)647 int i2d_X509_PUBKEY_bio(BIO *bp, const X509_PUBKEY *xpk)
648 {
649 return ASN1_i2d_bio_of(X509_PUBKEY, i2d_X509_PUBKEY, bp, xpk);
650 }
651
652 #ifndef OPENSSL_NO_STDIO
d2i_PKCS8_PRIV_KEY_INFO_fp(FILE * fp,PKCS8_PRIV_KEY_INFO ** p8inf)653 PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO_fp(FILE *fp,
654 PKCS8_PRIV_KEY_INFO **p8inf)
655 {
656 return ASN1_d2i_fp_of(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_new,
657 d2i_PKCS8_PRIV_KEY_INFO, fp, p8inf);
658 }
659
i2d_PKCS8_PRIV_KEY_INFO_fp(FILE * fp,const PKCS8_PRIV_KEY_INFO * p8inf)660 int i2d_PKCS8_PRIV_KEY_INFO_fp(FILE *fp, const PKCS8_PRIV_KEY_INFO *p8inf)
661 {
662 return ASN1_i2d_fp_of(PKCS8_PRIV_KEY_INFO, i2d_PKCS8_PRIV_KEY_INFO, fp,
663 p8inf);
664 }
665
i2d_PKCS8PrivateKeyInfo_fp(FILE * fp,const EVP_PKEY * key)666 int i2d_PKCS8PrivateKeyInfo_fp(FILE *fp, const EVP_PKEY *key)
667 {
668 PKCS8_PRIV_KEY_INFO *p8inf;
669 int ret;
670
671 p8inf = EVP_PKEY2PKCS8(key);
672 if (p8inf == NULL)
673 return 0;
674 ret = i2d_PKCS8_PRIV_KEY_INFO_fp(fp, p8inf);
675 PKCS8_PRIV_KEY_INFO_free(p8inf);
676 return ret;
677 }
678
i2d_PrivateKey_fp(FILE * fp,const EVP_PKEY * pkey)679 int i2d_PrivateKey_fp(FILE *fp, const EVP_PKEY *pkey)
680 {
681 return ASN1_i2d_fp_of(EVP_PKEY, i2d_PrivateKey, fp, pkey);
682 }
683
d2i_PrivateKey_fp(FILE * fp,EVP_PKEY ** a)684 EVP_PKEY *d2i_PrivateKey_fp(FILE *fp, EVP_PKEY **a)
685 {
686 return ASN1_d2i_fp_of(EVP_PKEY, EVP_PKEY_new, d2i_AutoPrivateKey, fp, a);
687 }
688
d2i_PrivateKey_ex_fp(FILE * fp,EVP_PKEY ** a,OSSL_LIB_CTX * libctx,const char * propq)689 EVP_PKEY *d2i_PrivateKey_ex_fp(FILE *fp, EVP_PKEY **a, OSSL_LIB_CTX *libctx,
690 const char *propq)
691 {
692 BIO *b;
693 void *ret;
694
695 if ((b = BIO_new(BIO_s_file())) == NULL) {
696 ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
697 return NULL;
698 }
699 BIO_set_fp(b, fp, BIO_NOCLOSE);
700 ret = d2i_PrivateKey_ex_bio(b, a, libctx, propq);
701 BIO_free(b);
702 return ret;
703 }
704
i2d_PUBKEY_fp(FILE * fp,const EVP_PKEY * pkey)705 int i2d_PUBKEY_fp(FILE *fp, const EVP_PKEY *pkey)
706 {
707 return ASN1_i2d_fp_of(EVP_PKEY, i2d_PUBKEY, fp, pkey);
708 }
709
d2i_PUBKEY_fp(FILE * fp,EVP_PKEY ** a)710 EVP_PKEY *d2i_PUBKEY_fp(FILE *fp, EVP_PKEY **a)
711 {
712 return ASN1_d2i_fp_of(EVP_PKEY, EVP_PKEY_new, d2i_PUBKEY, fp, a);
713 }
714
715 #endif
716
d2i_PKCS8_PRIV_KEY_INFO_bio(BIO * bp,PKCS8_PRIV_KEY_INFO ** p8inf)717 PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO_bio(BIO *bp,
718 PKCS8_PRIV_KEY_INFO **p8inf)
719 {
720 return ASN1_d2i_bio_of(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_new,
721 d2i_PKCS8_PRIV_KEY_INFO, bp, p8inf);
722 }
723
i2d_PKCS8_PRIV_KEY_INFO_bio(BIO * bp,const PKCS8_PRIV_KEY_INFO * p8inf)724 int i2d_PKCS8_PRIV_KEY_INFO_bio(BIO *bp, const PKCS8_PRIV_KEY_INFO *p8inf)
725 {
726 return ASN1_i2d_bio_of(PKCS8_PRIV_KEY_INFO, i2d_PKCS8_PRIV_KEY_INFO, bp,
727 p8inf);
728 }
729
i2d_PKCS8PrivateKeyInfo_bio(BIO * bp,const EVP_PKEY * key)730 int i2d_PKCS8PrivateKeyInfo_bio(BIO *bp, const EVP_PKEY *key)
731 {
732 PKCS8_PRIV_KEY_INFO *p8inf;
733 int ret;
734
735 p8inf = EVP_PKEY2PKCS8(key);
736 if (p8inf == NULL)
737 return 0;
738 ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
739 PKCS8_PRIV_KEY_INFO_free(p8inf);
740 return ret;
741 }
742
i2d_PrivateKey_bio(BIO * bp,const EVP_PKEY * pkey)743 int i2d_PrivateKey_bio(BIO *bp, const EVP_PKEY *pkey)
744 {
745 return ASN1_i2d_bio_of(EVP_PKEY, i2d_PrivateKey, bp, pkey);
746 }
747
d2i_PrivateKey_bio(BIO * bp,EVP_PKEY ** a)748 EVP_PKEY *d2i_PrivateKey_bio(BIO *bp, EVP_PKEY **a)
749 {
750 return ASN1_d2i_bio_of(EVP_PKEY, EVP_PKEY_new, d2i_AutoPrivateKey, bp, a);
751 }
752
d2i_PrivateKey_ex_bio(BIO * bp,EVP_PKEY ** a,OSSL_LIB_CTX * libctx,const char * propq)753 EVP_PKEY *d2i_PrivateKey_ex_bio(BIO *bp, EVP_PKEY **a, OSSL_LIB_CTX *libctx,
754 const char *propq)
755 {
756 BUF_MEM *b = NULL;
757 const unsigned char *p;
758 void *ret = NULL;
759 int len;
760
761 len = asn1_d2i_read_bio(bp, &b);
762 if (len < 0)
763 goto err;
764
765 p = (unsigned char *)b->data;
766 ret = d2i_AutoPrivateKey_ex(a, &p, len, libctx, propq);
767 err:
768 BUF_MEM_free(b);
769 return ret;
770 }
771
i2d_PUBKEY_bio(BIO * bp,const EVP_PKEY * pkey)772 int i2d_PUBKEY_bio(BIO *bp, const EVP_PKEY *pkey)
773 {
774 return ASN1_i2d_bio_of(EVP_PKEY, i2d_PUBKEY, bp, pkey);
775 }
776
d2i_PUBKEY_bio(BIO * bp,EVP_PKEY ** a)777 EVP_PKEY *d2i_PUBKEY_bio(BIO *bp, EVP_PKEY **a)
778 {
779 return ASN1_d2i_bio_of(EVP_PKEY, EVP_PKEY_new, d2i_PUBKEY, bp, a);
780 }
781