xref: /freebsd/crypto/openssl/crypto/x509/x_all.c (revision 0d0c8621fd181e507f0fb50ffcca606faf66a8c2)
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