xref: /freebsd/crypto/openssl/crypto/x509/x_all.c (revision b077aed33b7b6aefca7b17ddb250cf521f938613)
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     BIO *mem = OSSL_HTTP_get(url, NULL /* proxy */, NULL /* no_proxy */,
96                              bio, rbio, NULL /* cb */, NULL /* arg */,
97                              1024 /* buf_size */, NULL /* headers */,
98                              NULL /* expected_ct */, 1 /* expect_asn1 */,
99                              OSSL_HTTP_DEFAULT_MAX_RESP_LEN, timeout);
100     ASN1_VALUE *res = ASN1_item_d2i_bio(it, mem, NULL);
101 
102     BIO_free(mem);
103     return res;
104 }
105 
X509_load_http(const char * url,BIO * bio,BIO * rbio,int timeout)106 X509 *X509_load_http(const char *url, BIO *bio, BIO *rbio, int timeout)
107 {
108     return (X509 *)simple_get_asn1(url, bio, rbio, timeout,
109                                    ASN1_ITEM_rptr(X509));
110 }
111 
X509_REQ_sign(X509_REQ * x,EVP_PKEY * pkey,const EVP_MD * md)112 int X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md)
113 {
114     if (x == NULL) {
115         ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
116         return 0;
117     }
118     x->req_info.enc.modified = 1;
119     return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_REQ_INFO), &x->sig_alg, NULL,
120                              x->signature, &x->req_info, NULL,
121                              pkey, md, x->libctx, x->propq);
122 }
123 
X509_REQ_sign_ctx(X509_REQ * x,EVP_MD_CTX * ctx)124 int X509_REQ_sign_ctx(X509_REQ *x, EVP_MD_CTX *ctx)
125 {
126     if (x == NULL) {
127         ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
128         return 0;
129     }
130     x->req_info.enc.modified = 1;
131     return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_REQ_INFO),
132                               &x->sig_alg, NULL, x->signature, &x->req_info,
133                               ctx);
134 }
135 
X509_CRL_sign(X509_CRL * x,EVP_PKEY * pkey,const EVP_MD * md)136 int X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md)
137 {
138     if (x == NULL) {
139         ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
140         return 0;
141     }
142     x->crl.enc.modified = 1;
143     return ASN1_item_sign_ex(ASN1_ITEM_rptr(X509_CRL_INFO), &x->crl.sig_alg,
144                              &x->sig_alg, &x->signature, &x->crl, NULL,
145                              pkey, md, x->libctx, x->propq);
146 }
147 
X509_CRL_sign_ctx(X509_CRL * x,EVP_MD_CTX * ctx)148 int X509_CRL_sign_ctx(X509_CRL *x, EVP_MD_CTX *ctx)
149 {
150     if (x == NULL) {
151         ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
152         return 0;
153     }
154     x->crl.enc.modified = 1;
155     return ASN1_item_sign_ctx(ASN1_ITEM_rptr(X509_CRL_INFO),
156                               &x->crl.sig_alg, &x->sig_alg, &x->signature,
157                               &x->crl, ctx);
158 }
159 
X509_CRL_load_http(const char * url,BIO * bio,BIO * rbio,int timeout)160 X509_CRL *X509_CRL_load_http(const char *url, BIO *bio, BIO *rbio, int timeout)
161 {
162     return (X509_CRL *)simple_get_asn1(url, bio, rbio, timeout,
163                                        ASN1_ITEM_rptr(X509_CRL));
164 }
165 
NETSCAPE_SPKI_sign(NETSCAPE_SPKI * x,EVP_PKEY * pkey,const EVP_MD * md)166 int NETSCAPE_SPKI_sign(NETSCAPE_SPKI *x, EVP_PKEY *pkey, const EVP_MD *md)
167 {
168     return
169         ASN1_item_sign_ex(ASN1_ITEM_rptr(NETSCAPE_SPKAC), &x->sig_algor, NULL,
170                           x->signature, x->spkac, NULL, pkey, md, NULL, NULL);
171 }
172 
173 #ifndef OPENSSL_NO_STDIO
d2i_X509_fp(FILE * fp,X509 ** x509)174 X509 *d2i_X509_fp(FILE *fp, X509 **x509)
175 {
176     return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509), fp, x509);
177 }
178 
i2d_X509_fp(FILE * fp,const X509 * x509)179 int i2d_X509_fp(FILE *fp, const X509 *x509)
180 {
181     return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509), fp, x509);
182 }
183 #endif
184 
d2i_X509_bio(BIO * bp,X509 ** x509)185 X509 *d2i_X509_bio(BIO *bp, X509 **x509)
186 {
187     return ASN1_item_d2i_bio(ASN1_ITEM_rptr(X509), bp, x509);
188 }
189 
i2d_X509_bio(BIO * bp,const X509 * x509)190 int i2d_X509_bio(BIO *bp, const X509 *x509)
191 {
192     return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509), bp, x509);
193 }
194 
195 #ifndef OPENSSL_NO_STDIO
d2i_X509_CRL_fp(FILE * fp,X509_CRL ** crl)196 X509_CRL *d2i_X509_CRL_fp(FILE *fp, X509_CRL **crl)
197 {
198     return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509_CRL), fp, crl);
199 }
200 
i2d_X509_CRL_fp(FILE * fp,const X509_CRL * crl)201 int i2d_X509_CRL_fp(FILE *fp, const X509_CRL *crl)
202 {
203     return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509_CRL), fp, crl);
204 }
205 #endif
206 
d2i_X509_CRL_bio(BIO * bp,X509_CRL ** crl)207 X509_CRL *d2i_X509_CRL_bio(BIO *bp, X509_CRL **crl)
208 {
209     return ASN1_item_d2i_bio(ASN1_ITEM_rptr(X509_CRL), bp, crl);
210 }
211 
i2d_X509_CRL_bio(BIO * bp,const X509_CRL * crl)212 int i2d_X509_CRL_bio(BIO *bp, const X509_CRL *crl)
213 {
214     return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509_CRL), bp, crl);
215 }
216 
217 #ifndef OPENSSL_NO_STDIO
d2i_PKCS7_fp(FILE * fp,PKCS7 ** p7)218 PKCS7 *d2i_PKCS7_fp(FILE *fp, PKCS7 **p7)
219 {
220     PKCS7 *ret;
221     OSSL_LIB_CTX *libctx = NULL;
222     const char *propq = NULL;
223 
224     if (p7 != NULL && *p7 != NULL) {
225         libctx = (*p7)->ctx.libctx;
226         propq = (*p7)->ctx.propq;
227     }
228 
229     ret = ASN1_item_d2i_fp_ex(ASN1_ITEM_rptr(PKCS7), fp, p7, libctx, propq);
230     if (ret != NULL)
231         ossl_pkcs7_resolve_libctx(ret);
232     return ret;
233 }
234 
i2d_PKCS7_fp(FILE * fp,const PKCS7 * p7)235 int i2d_PKCS7_fp(FILE *fp, const PKCS7 *p7)
236 {
237     return ASN1_item_i2d_fp(ASN1_ITEM_rptr(PKCS7), fp, p7);
238 }
239 #endif
240 
d2i_PKCS7_bio(BIO * bp,PKCS7 ** p7)241 PKCS7 *d2i_PKCS7_bio(BIO *bp, PKCS7 **p7)
242 {
243     PKCS7 *ret;
244     OSSL_LIB_CTX *libctx = NULL;
245     const char *propq = NULL;
246 
247     if (p7 != NULL && *p7 != NULL) {
248         libctx = (*p7)->ctx.libctx;
249         propq = (*p7)->ctx.propq;
250     }
251 
252     ret = ASN1_item_d2i_bio_ex(ASN1_ITEM_rptr(PKCS7), bp, p7, libctx, propq);
253     if (ret != NULL)
254         ossl_pkcs7_resolve_libctx(ret);
255     return ret;
256 }
257 
i2d_PKCS7_bio(BIO * bp,const PKCS7 * p7)258 int i2d_PKCS7_bio(BIO *bp, const PKCS7 *p7)
259 {
260     return ASN1_item_i2d_bio(ASN1_ITEM_rptr(PKCS7), bp, p7);
261 }
262 
263 #ifndef OPENSSL_NO_STDIO
d2i_X509_REQ_fp(FILE * fp,X509_REQ ** req)264 X509_REQ *d2i_X509_REQ_fp(FILE *fp, X509_REQ **req)
265 {
266     return ASN1_item_d2i_fp(ASN1_ITEM_rptr(X509_REQ), fp, req);
267 }
268 
i2d_X509_REQ_fp(FILE * fp,const X509_REQ * req)269 int i2d_X509_REQ_fp(FILE *fp, const X509_REQ *req)
270 {
271     return ASN1_item_i2d_fp(ASN1_ITEM_rptr(X509_REQ), fp, req);
272 }
273 #endif
274 
d2i_X509_REQ_bio(BIO * bp,X509_REQ ** req)275 X509_REQ *d2i_X509_REQ_bio(BIO *bp, X509_REQ **req)
276 {
277     OSSL_LIB_CTX *libctx = NULL;
278     const char *propq = NULL;
279 
280     if (req != NULL && *req != NULL) {
281         libctx = (*req)->libctx;
282         propq = (*req)->propq;
283     }
284 
285     return ASN1_item_d2i_bio_ex(ASN1_ITEM_rptr(X509_REQ), bp, req, libctx, propq);
286 }
287 
i2d_X509_REQ_bio(BIO * bp,const X509_REQ * req)288 int i2d_X509_REQ_bio(BIO *bp, const X509_REQ *req)
289 {
290     return ASN1_item_i2d_bio(ASN1_ITEM_rptr(X509_REQ), bp, req);
291 }
292 
293 #ifndef OPENSSL_NO_STDIO
d2i_RSAPrivateKey_fp(FILE * fp,RSA ** rsa)294 RSA *d2i_RSAPrivateKey_fp(FILE *fp, RSA **rsa)
295 {
296     return ASN1_item_d2i_fp(ASN1_ITEM_rptr(RSAPrivateKey), fp, rsa);
297 }
298 
i2d_RSAPrivateKey_fp(FILE * fp,const RSA * rsa)299 int i2d_RSAPrivateKey_fp(FILE *fp, const RSA *rsa)
300 {
301     return ASN1_item_i2d_fp(ASN1_ITEM_rptr(RSAPrivateKey), fp, rsa);
302 }
303 
d2i_RSAPublicKey_fp(FILE * fp,RSA ** rsa)304 RSA *d2i_RSAPublicKey_fp(FILE *fp, RSA **rsa)
305 {
306     return ASN1_item_d2i_fp(ASN1_ITEM_rptr(RSAPublicKey), fp, rsa);
307 }
308 
d2i_RSA_PUBKEY_fp(FILE * fp,RSA ** rsa)309 RSA *d2i_RSA_PUBKEY_fp(FILE *fp, RSA **rsa)
310 {
311     return ASN1_d2i_fp((void *(*)(void))
312                        RSA_new, (D2I_OF(void)) d2i_RSA_PUBKEY, fp,
313                        (void **)rsa);
314 }
315 
i2d_RSAPublicKey_fp(FILE * fp,const RSA * rsa)316 int i2d_RSAPublicKey_fp(FILE *fp, const RSA *rsa)
317 {
318     return ASN1_item_i2d_fp(ASN1_ITEM_rptr(RSAPublicKey), fp, rsa);
319 }
320 
i2d_RSA_PUBKEY_fp(FILE * fp,const RSA * rsa)321 int i2d_RSA_PUBKEY_fp(FILE *fp, const RSA *rsa)
322 {
323     return ASN1_i2d_fp((I2D_OF(void))i2d_RSA_PUBKEY, fp, rsa);
324 }
325 #endif
326 
d2i_RSAPrivateKey_bio(BIO * bp,RSA ** rsa)327 RSA *d2i_RSAPrivateKey_bio(BIO *bp, RSA **rsa)
328 {
329     return ASN1_item_d2i_bio(ASN1_ITEM_rptr(RSAPrivateKey), bp, rsa);
330 }
331 
i2d_RSAPrivateKey_bio(BIO * bp,const RSA * rsa)332 int i2d_RSAPrivateKey_bio(BIO *bp, const RSA *rsa)
333 {
334     return ASN1_item_i2d_bio(ASN1_ITEM_rptr(RSAPrivateKey), bp, rsa);
335 }
336 
d2i_RSAPublicKey_bio(BIO * bp,RSA ** rsa)337 RSA *d2i_RSAPublicKey_bio(BIO *bp, RSA **rsa)
338 {
339     return ASN1_item_d2i_bio(ASN1_ITEM_rptr(RSAPublicKey), bp, rsa);
340 }
341 
d2i_RSA_PUBKEY_bio(BIO * bp,RSA ** rsa)342 RSA *d2i_RSA_PUBKEY_bio(BIO *bp, RSA **rsa)
343 {
344     return ASN1_d2i_bio_of(RSA, RSA_new, d2i_RSA_PUBKEY, bp, rsa);
345 }
346 
i2d_RSAPublicKey_bio(BIO * bp,const RSA * rsa)347 int i2d_RSAPublicKey_bio(BIO *bp, const RSA *rsa)
348 {
349     return ASN1_item_i2d_bio(ASN1_ITEM_rptr(RSAPublicKey), bp, rsa);
350 }
351 
i2d_RSA_PUBKEY_bio(BIO * bp,const RSA * rsa)352 int i2d_RSA_PUBKEY_bio(BIO *bp, const RSA *rsa)
353 {
354     return ASN1_i2d_bio_of(RSA, i2d_RSA_PUBKEY, bp, rsa);
355 }
356 
357 #ifndef OPENSSL_NO_DSA
358 # ifndef OPENSSL_NO_STDIO
d2i_DSAPrivateKey_fp(FILE * fp,DSA ** dsa)359 DSA *d2i_DSAPrivateKey_fp(FILE *fp, DSA **dsa)
360 {
361     return ASN1_d2i_fp_of(DSA, DSA_new, d2i_DSAPrivateKey, fp, dsa);
362 }
363 
i2d_DSAPrivateKey_fp(FILE * fp,const DSA * dsa)364 int i2d_DSAPrivateKey_fp(FILE *fp, const DSA *dsa)
365 {
366     return ASN1_i2d_fp_of(DSA, i2d_DSAPrivateKey, fp, dsa);
367 }
368 
d2i_DSA_PUBKEY_fp(FILE * fp,DSA ** dsa)369 DSA *d2i_DSA_PUBKEY_fp(FILE *fp, DSA **dsa)
370 {
371     return ASN1_d2i_fp_of(DSA, DSA_new, d2i_DSA_PUBKEY, fp, dsa);
372 }
373 
i2d_DSA_PUBKEY_fp(FILE * fp,const DSA * dsa)374 int i2d_DSA_PUBKEY_fp(FILE *fp, const DSA *dsa)
375 {
376     return ASN1_i2d_fp_of(DSA, i2d_DSA_PUBKEY, fp, dsa);
377 }
378 # endif
379 
d2i_DSAPrivateKey_bio(BIO * bp,DSA ** dsa)380 DSA *d2i_DSAPrivateKey_bio(BIO *bp, DSA **dsa)
381 {
382     return ASN1_d2i_bio_of(DSA, DSA_new, d2i_DSAPrivateKey, bp, dsa);
383 }
384 
i2d_DSAPrivateKey_bio(BIO * bp,const DSA * dsa)385 int i2d_DSAPrivateKey_bio(BIO *bp, const DSA *dsa)
386 {
387     return ASN1_i2d_bio_of(DSA, i2d_DSAPrivateKey, bp, dsa);
388 }
389 
d2i_DSA_PUBKEY_bio(BIO * bp,DSA ** dsa)390 DSA *d2i_DSA_PUBKEY_bio(BIO *bp, DSA **dsa)
391 {
392     return ASN1_d2i_bio_of(DSA, DSA_new, d2i_DSA_PUBKEY, bp, dsa);
393 }
394 
i2d_DSA_PUBKEY_bio(BIO * bp,const DSA * dsa)395 int i2d_DSA_PUBKEY_bio(BIO *bp, const DSA *dsa)
396 {
397     return ASN1_i2d_bio_of(DSA, i2d_DSA_PUBKEY, bp, dsa);
398 }
399 
400 #endif
401 
402 #ifndef OPENSSL_NO_EC
403 # ifndef OPENSSL_NO_STDIO
d2i_EC_PUBKEY_fp(FILE * fp,EC_KEY ** eckey)404 EC_KEY *d2i_EC_PUBKEY_fp(FILE *fp, EC_KEY **eckey)
405 {
406     return ASN1_d2i_fp_of(EC_KEY, EC_KEY_new, d2i_EC_PUBKEY, fp, eckey);
407 }
408 
i2d_EC_PUBKEY_fp(FILE * fp,const EC_KEY * eckey)409 int i2d_EC_PUBKEY_fp(FILE *fp, const EC_KEY *eckey)
410 {
411     return ASN1_i2d_fp_of(EC_KEY, i2d_EC_PUBKEY, fp, eckey);
412 }
413 
d2i_ECPrivateKey_fp(FILE * fp,EC_KEY ** eckey)414 EC_KEY *d2i_ECPrivateKey_fp(FILE *fp, EC_KEY **eckey)
415 {
416     return ASN1_d2i_fp_of(EC_KEY, EC_KEY_new, d2i_ECPrivateKey, fp, eckey);
417 }
418 
i2d_ECPrivateKey_fp(FILE * fp,const EC_KEY * eckey)419 int i2d_ECPrivateKey_fp(FILE *fp, const EC_KEY *eckey)
420 {
421     return ASN1_i2d_fp_of(EC_KEY, i2d_ECPrivateKey, fp, eckey);
422 }
423 # endif
d2i_EC_PUBKEY_bio(BIO * bp,EC_KEY ** eckey)424 EC_KEY *d2i_EC_PUBKEY_bio(BIO *bp, EC_KEY **eckey)
425 {
426     return ASN1_d2i_bio_of(EC_KEY, EC_KEY_new, d2i_EC_PUBKEY, bp, eckey);
427 }
428 
i2d_EC_PUBKEY_bio(BIO * bp,const EC_KEY * ecdsa)429 int i2d_EC_PUBKEY_bio(BIO *bp, const EC_KEY *ecdsa)
430 {
431     return ASN1_i2d_bio_of(EC_KEY, i2d_EC_PUBKEY, bp, ecdsa);
432 }
433 
d2i_ECPrivateKey_bio(BIO * bp,EC_KEY ** eckey)434 EC_KEY *d2i_ECPrivateKey_bio(BIO *bp, EC_KEY **eckey)
435 {
436     return ASN1_d2i_bio_of(EC_KEY, EC_KEY_new, d2i_ECPrivateKey, bp, eckey);
437 }
438 
i2d_ECPrivateKey_bio(BIO * bp,const EC_KEY * eckey)439 int i2d_ECPrivateKey_bio(BIO *bp, const EC_KEY *eckey)
440 {
441     return ASN1_i2d_bio_of(EC_KEY, i2d_ECPrivateKey, bp, eckey);
442 }
443 #endif
444 
X509_pubkey_digest(const X509 * data,const EVP_MD * type,unsigned char * md,unsigned int * len)445 int X509_pubkey_digest(const X509 *data, const EVP_MD *type,
446                        unsigned char *md, unsigned int *len)
447 {
448     ASN1_BIT_STRING *key = X509_get0_pubkey_bitstr(data);
449 
450     if (key == NULL)
451         return 0;
452     return EVP_Digest(key->data, key->length, md, len, type, NULL);
453 }
454 
X509_digest(const X509 * cert,const EVP_MD * md,unsigned char * data,unsigned int * len)455 int X509_digest(const X509 *cert, const EVP_MD *md, unsigned char *data,
456                 unsigned int *len)
457 {
458     if (EVP_MD_is_a(md, SN_sha1) && (cert->ex_flags & EXFLAG_SET) != 0
459             && (cert->ex_flags & EXFLAG_NO_FINGERPRINT) == 0) {
460         /* Asking for SHA1 and we already computed it. */
461         if (len != NULL)
462             *len = sizeof(cert->sha1_hash);
463         memcpy(data, cert->sha1_hash, sizeof(cert->sha1_hash));
464         return 1;
465     }
466     return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509), md, (char *)cert,
467                                     data, len, cert->libctx, cert->propq);
468 }
469 
470 /* 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)471 ASN1_OCTET_STRING *X509_digest_sig(const X509 *cert,
472                                    EVP_MD **md_used, int *md_is_fallback)
473 {
474     unsigned int len;
475     unsigned char hash[EVP_MAX_MD_SIZE];
476     int mdnid, pknid;
477     EVP_MD *md = NULL;
478     const char *md_name;
479     ASN1_OCTET_STRING *new;
480 
481     if (md_used != NULL)
482         *md_used = NULL;
483     if (md_is_fallback != NULL)
484         *md_is_fallback = 0;
485 
486     if (cert == NULL) {
487         ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
488         return NULL;
489     }
490 
491     if (!OBJ_find_sigid_algs(X509_get_signature_nid(cert), &mdnid, &pknid)) {
492         ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_SIGID_ALGS);
493         return NULL;
494     }
495 
496     if (mdnid == NID_undef) {
497         if (pknid == EVP_PKEY_RSA_PSS) {
498             RSA_PSS_PARAMS *pss = ossl_rsa_pss_decode(&cert->sig_alg);
499             const EVP_MD *mgf1md, *mmd = NULL;
500             int saltlen, trailerfield;
501 
502             if (pss == NULL
503                 || !ossl_rsa_pss_get_param_unverified(pss, &mmd, &mgf1md,
504                                                       &saltlen,
505                                                       &trailerfield)
506                 || mmd == NULL) {
507                 RSA_PSS_PARAMS_free(pss);
508                 ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
509                 return NULL;
510             }
511             RSA_PSS_PARAMS_free(pss);
512             /* Fetch explicitly and do not fallback */
513             if ((md = EVP_MD_fetch(cert->libctx, EVP_MD_get0_name(mmd),
514                                    cert->propq)) == NULL)
515                 /* Error code from fetch is sufficient */
516                 return NULL;
517         } else if (pknid != NID_undef) {
518             /* A known algorithm, but without a digest */
519             switch (pknid) {
520             case NID_ED25519: /* Follow CMS default given in RFC8419 */
521                 md_name = "SHA512";
522                 break;
523             case NID_ED448: /* Follow CMS default given in RFC8419 */
524                 md_name = "SHAKE256";
525                 break;
526             default: /* Fall back to SHA-256 */
527                 md_name = "SHA256";
528                 break;
529             }
530             if ((md = EVP_MD_fetch(cert->libctx, md_name,
531                                    cert->propq)) == NULL)
532                 return NULL;
533             if (md_is_fallback != NULL)
534                 *md_is_fallback = 1;
535         } else {
536             /* A completely unknown algorithm */
537             ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
538             return NULL;
539         }
540     } else if ((md = EVP_MD_fetch(cert->libctx, OBJ_nid2sn(mdnid),
541                                   cert->propq)) == NULL
542                && (md = (EVP_MD *)EVP_get_digestbynid(mdnid)) == NULL) {
543         ERR_raise(ERR_LIB_X509, X509_R_UNSUPPORTED_ALGORITHM);
544         return NULL;
545     }
546     if (!X509_digest(cert, md, hash, &len)
547             || (new = ASN1_OCTET_STRING_new()) == NULL)
548         goto err;
549     if (ASN1_OCTET_STRING_set(new, hash, len)) {
550         if (md_used != NULL)
551             *md_used = md;
552         else
553             EVP_MD_free(md);
554         return new;
555     }
556     ASN1_OCTET_STRING_free(new);
557  err:
558     EVP_MD_free(md);
559     return NULL;
560 }
561 
X509_CRL_digest(const X509_CRL * data,const EVP_MD * type,unsigned char * md,unsigned int * len)562 int X509_CRL_digest(const X509_CRL *data, const EVP_MD *type,
563                     unsigned char *md, unsigned int *len)
564 {
565     if (type == NULL) {
566         ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
567         return 0;
568     }
569     if (EVP_MD_is_a(type, SN_sha1)
570             && (data->flags & EXFLAG_SET) != 0
571             && (data->flags & EXFLAG_NO_FINGERPRINT) == 0) {
572         /* Asking for SHA1; always computed in CRL d2i. */
573         if (len != NULL)
574             *len = sizeof(data->sha1_hash);
575         memcpy(md, data->sha1_hash, sizeof(data->sha1_hash));
576         return 1;
577     }
578     return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509_CRL), type, (char *)data,
579                                     md, len, data->libctx, data->propq);
580 }
581 
X509_REQ_digest(const X509_REQ * data,const EVP_MD * type,unsigned char * md,unsigned int * len)582 int X509_REQ_digest(const X509_REQ *data, const EVP_MD *type,
583                     unsigned char *md, unsigned int *len)
584 {
585     return ossl_asn1_item_digest_ex(ASN1_ITEM_rptr(X509_REQ), type, (char *)data,
586                                     md, len, data->libctx, data->propq);
587 }
588 
X509_NAME_digest(const X509_NAME * data,const EVP_MD * type,unsigned char * md,unsigned int * len)589 int X509_NAME_digest(const X509_NAME *data, const EVP_MD *type,
590                      unsigned char *md, unsigned int *len)
591 {
592     return ASN1_item_digest(ASN1_ITEM_rptr(X509_NAME), type, (char *)data,
593                             md, len);
594 }
595 
PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL * data,const EVP_MD * type,unsigned char * md,unsigned int * len)596 int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
597                                    const EVP_MD *type, unsigned char *md,
598                                    unsigned int *len)
599 {
600     return ASN1_item_digest(ASN1_ITEM_rptr(PKCS7_ISSUER_AND_SERIAL), type,
601                             (char *)data, md, len);
602 }
603 
604 #ifndef OPENSSL_NO_STDIO
d2i_PKCS8_fp(FILE * fp,X509_SIG ** p8)605 X509_SIG *d2i_PKCS8_fp(FILE *fp, X509_SIG **p8)
606 {
607     return ASN1_d2i_fp_of(X509_SIG, X509_SIG_new, d2i_X509_SIG, fp, p8);
608 }
609 
i2d_PKCS8_fp(FILE * fp,const X509_SIG * p8)610 int i2d_PKCS8_fp(FILE *fp, const X509_SIG *p8)
611 {
612     return ASN1_i2d_fp_of(X509_SIG, i2d_X509_SIG, fp, p8);
613 }
614 #endif
615 
d2i_PKCS8_bio(BIO * bp,X509_SIG ** p8)616 X509_SIG *d2i_PKCS8_bio(BIO *bp, X509_SIG **p8)
617 {
618     return ASN1_d2i_bio_of(X509_SIG, X509_SIG_new, d2i_X509_SIG, bp, p8);
619 }
620 
i2d_PKCS8_bio(BIO * bp,const X509_SIG * p8)621 int i2d_PKCS8_bio(BIO *bp, const X509_SIG *p8)
622 {
623     return ASN1_i2d_bio_of(X509_SIG, i2d_X509_SIG, bp, p8);
624 }
625 
626 #ifndef OPENSSL_NO_STDIO
d2i_X509_PUBKEY_fp(FILE * fp,X509_PUBKEY ** xpk)627 X509_PUBKEY *d2i_X509_PUBKEY_fp(FILE *fp, X509_PUBKEY **xpk)
628 {
629     return ASN1_d2i_fp_of(X509_PUBKEY, X509_PUBKEY_new, d2i_X509_PUBKEY,
630                           fp, xpk);
631 }
632 
i2d_X509_PUBKEY_fp(FILE * fp,const X509_PUBKEY * xpk)633 int i2d_X509_PUBKEY_fp(FILE *fp, const X509_PUBKEY *xpk)
634 {
635     return ASN1_i2d_fp_of(X509_PUBKEY, i2d_X509_PUBKEY, fp, xpk);
636 }
637 #endif
638 
d2i_X509_PUBKEY_bio(BIO * bp,X509_PUBKEY ** xpk)639 X509_PUBKEY *d2i_X509_PUBKEY_bio(BIO *bp, X509_PUBKEY **xpk)
640 {
641     return ASN1_d2i_bio_of(X509_PUBKEY, X509_PUBKEY_new, d2i_X509_PUBKEY,
642                            bp, xpk);
643 }
644 
i2d_X509_PUBKEY_bio(BIO * bp,const X509_PUBKEY * xpk)645 int i2d_X509_PUBKEY_bio(BIO *bp, const X509_PUBKEY *xpk)
646 {
647     return ASN1_i2d_bio_of(X509_PUBKEY, i2d_X509_PUBKEY, bp, xpk);
648 }
649 
650 #ifndef OPENSSL_NO_STDIO
d2i_PKCS8_PRIV_KEY_INFO_fp(FILE * fp,PKCS8_PRIV_KEY_INFO ** p8inf)651 PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO_fp(FILE *fp,
652                                                 PKCS8_PRIV_KEY_INFO **p8inf)
653 {
654     return ASN1_d2i_fp_of(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_new,
655                           d2i_PKCS8_PRIV_KEY_INFO, fp, p8inf);
656 }
657 
i2d_PKCS8_PRIV_KEY_INFO_fp(FILE * fp,const PKCS8_PRIV_KEY_INFO * p8inf)658 int i2d_PKCS8_PRIV_KEY_INFO_fp(FILE *fp, const PKCS8_PRIV_KEY_INFO *p8inf)
659 {
660     return ASN1_i2d_fp_of(PKCS8_PRIV_KEY_INFO, i2d_PKCS8_PRIV_KEY_INFO, fp,
661                           p8inf);
662 }
663 
i2d_PKCS8PrivateKeyInfo_fp(FILE * fp,const EVP_PKEY * key)664 int i2d_PKCS8PrivateKeyInfo_fp(FILE *fp, const EVP_PKEY *key)
665 {
666     PKCS8_PRIV_KEY_INFO *p8inf;
667     int ret;
668 
669     p8inf = EVP_PKEY2PKCS8(key);
670     if (p8inf == NULL)
671         return 0;
672     ret = i2d_PKCS8_PRIV_KEY_INFO_fp(fp, p8inf);
673     PKCS8_PRIV_KEY_INFO_free(p8inf);
674     return ret;
675 }
676 
i2d_PrivateKey_fp(FILE * fp,const EVP_PKEY * pkey)677 int i2d_PrivateKey_fp(FILE *fp, const EVP_PKEY *pkey)
678 {
679     return ASN1_i2d_fp_of(EVP_PKEY, i2d_PrivateKey, fp, pkey);
680 }
681 
d2i_PrivateKey_fp(FILE * fp,EVP_PKEY ** a)682 EVP_PKEY *d2i_PrivateKey_fp(FILE *fp, EVP_PKEY **a)
683 {
684     return ASN1_d2i_fp_of(EVP_PKEY, EVP_PKEY_new, d2i_AutoPrivateKey, fp, a);
685 }
686 
d2i_PrivateKey_ex_fp(FILE * fp,EVP_PKEY ** a,OSSL_LIB_CTX * libctx,const char * propq)687 EVP_PKEY *d2i_PrivateKey_ex_fp(FILE *fp, EVP_PKEY **a, OSSL_LIB_CTX *libctx,
688                                const char *propq)
689 {
690     BIO *b;
691     void *ret;
692 
693     if ((b = BIO_new(BIO_s_file())) == NULL) {
694         ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
695         return NULL;
696     }
697     BIO_set_fp(b, fp, BIO_NOCLOSE);
698     ret = d2i_PrivateKey_ex_bio(b, a, libctx, propq);
699     BIO_free(b);
700     return ret;
701 }
702 
i2d_PUBKEY_fp(FILE * fp,const EVP_PKEY * pkey)703 int i2d_PUBKEY_fp(FILE *fp, const EVP_PKEY *pkey)
704 {
705     return ASN1_i2d_fp_of(EVP_PKEY, i2d_PUBKEY, fp, pkey);
706 }
707 
d2i_PUBKEY_fp(FILE * fp,EVP_PKEY ** a)708 EVP_PKEY *d2i_PUBKEY_fp(FILE *fp, EVP_PKEY **a)
709 {
710     return ASN1_d2i_fp_of(EVP_PKEY, EVP_PKEY_new, d2i_PUBKEY, fp, a);
711 }
712 
713 #endif
714 
d2i_PKCS8_PRIV_KEY_INFO_bio(BIO * bp,PKCS8_PRIV_KEY_INFO ** p8inf)715 PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO_bio(BIO *bp,
716                                                  PKCS8_PRIV_KEY_INFO **p8inf)
717 {
718     return ASN1_d2i_bio_of(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_new,
719                            d2i_PKCS8_PRIV_KEY_INFO, bp, p8inf);
720 }
721 
i2d_PKCS8_PRIV_KEY_INFO_bio(BIO * bp,const PKCS8_PRIV_KEY_INFO * p8inf)722 int i2d_PKCS8_PRIV_KEY_INFO_bio(BIO *bp, const PKCS8_PRIV_KEY_INFO *p8inf)
723 {
724     return ASN1_i2d_bio_of(PKCS8_PRIV_KEY_INFO, i2d_PKCS8_PRIV_KEY_INFO, bp,
725                            p8inf);
726 }
727 
i2d_PKCS8PrivateKeyInfo_bio(BIO * bp,const EVP_PKEY * key)728 int i2d_PKCS8PrivateKeyInfo_bio(BIO *bp, const EVP_PKEY *key)
729 {
730     PKCS8_PRIV_KEY_INFO *p8inf;
731     int ret;
732 
733     p8inf = EVP_PKEY2PKCS8(key);
734     if (p8inf == NULL)
735         return 0;
736     ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
737     PKCS8_PRIV_KEY_INFO_free(p8inf);
738     return ret;
739 }
740 
i2d_PrivateKey_bio(BIO * bp,const EVP_PKEY * pkey)741 int i2d_PrivateKey_bio(BIO *bp, const EVP_PKEY *pkey)
742 {
743     return ASN1_i2d_bio_of(EVP_PKEY, i2d_PrivateKey, bp, pkey);
744 }
745 
d2i_PrivateKey_bio(BIO * bp,EVP_PKEY ** a)746 EVP_PKEY *d2i_PrivateKey_bio(BIO *bp, EVP_PKEY **a)
747 {
748     return ASN1_d2i_bio_of(EVP_PKEY, EVP_PKEY_new, d2i_AutoPrivateKey, bp, a);
749 }
750 
d2i_PrivateKey_ex_bio(BIO * bp,EVP_PKEY ** a,OSSL_LIB_CTX * libctx,const char * propq)751 EVP_PKEY *d2i_PrivateKey_ex_bio(BIO *bp, EVP_PKEY **a, OSSL_LIB_CTX *libctx,
752                                 const char *propq)
753 {
754     BUF_MEM *b = NULL;
755     const unsigned char *p;
756     void *ret = NULL;
757     int len;
758 
759     len = asn1_d2i_read_bio(bp, &b);
760     if (len < 0)
761         goto err;
762 
763     p = (unsigned char *)b->data;
764     ret = d2i_AutoPrivateKey_ex(a, &p, len, libctx, propq);
765  err:
766     BUF_MEM_free(b);
767     return ret;
768 }
769 
i2d_PUBKEY_bio(BIO * bp,const EVP_PKEY * pkey)770 int i2d_PUBKEY_bio(BIO *bp, const EVP_PKEY *pkey)
771 {
772     return ASN1_i2d_bio_of(EVP_PKEY, i2d_PUBKEY, bp, pkey);
773 }
774 
d2i_PUBKEY_bio(BIO * bp,EVP_PKEY ** a)775 EVP_PKEY *d2i_PUBKEY_bio(BIO *bp, EVP_PKEY **a)
776 {
777     return ASN1_d2i_bio_of(EVP_PKEY, EVP_PKEY_new, d2i_PUBKEY, bp, a);
778 }
779