xref: /freebsd/crypto/openssl/include/openssl/pem.h (revision 88b8b7f0c4e9948667a2279e78e975a784049cba)
1 /*
2  * Copyright 1995-2025 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 #ifndef OPENSSL_PEM_H
11 # define OPENSSL_PEM_H
12 # pragma once
13 
14 # include <openssl/macros.h>
15 # ifndef OPENSSL_NO_DEPRECATED_3_0
16 #  define HEADER_PEM_H
17 # endif
18 
19 # include <openssl/e_os2.h>
20 # include <openssl/bio.h>
21 # include <openssl/safestack.h>
22 # include <openssl/evp.h>
23 # include <openssl/x509.h>
24 # include <openssl/pemerr.h>
25 # ifndef OPENSSL_NO_STDIO
26 #  include <stdio.h>
27 # endif
28 
29 #ifdef  __cplusplus
30 extern "C" {
31 #endif
32 
33 # define PEM_BUFSIZE             1024
34 
35 # define PEM_STRING_X509_OLD     "X509 CERTIFICATE"
36 # define PEM_STRING_X509         "CERTIFICATE"
37 # define PEM_STRING_X509_TRUSTED "TRUSTED CERTIFICATE"
38 # define PEM_STRING_X509_REQ_OLD "NEW CERTIFICATE REQUEST"
39 # define PEM_STRING_X509_REQ     "CERTIFICATE REQUEST"
40 # define PEM_STRING_X509_CRL     "X509 CRL"
41 # define PEM_STRING_EVP_PKEY     "ANY PRIVATE KEY"
42 # define PEM_STRING_PUBLIC       "PUBLIC KEY"
43 # define PEM_STRING_RSA          "RSA PRIVATE KEY"
44 # define PEM_STRING_RSA_PUBLIC   "RSA PUBLIC KEY"
45 # define PEM_STRING_DSA          "DSA PRIVATE KEY"
46 # define PEM_STRING_DSA_PUBLIC   "DSA PUBLIC KEY"
47 # define PEM_STRING_PKCS7        "PKCS7"
48 # define PEM_STRING_PKCS7_SIGNED "PKCS #7 SIGNED DATA"
49 # define PEM_STRING_PKCS8        "ENCRYPTED PRIVATE KEY"
50 # define PEM_STRING_PKCS8INF     "PRIVATE KEY"
51 # define PEM_STRING_DHPARAMS     "DH PARAMETERS"
52 # define PEM_STRING_DHXPARAMS    "X9.42 DH PARAMETERS"
53 # define PEM_STRING_SSL_SESSION  "SSL SESSION PARAMETERS"
54 # define PEM_STRING_DSAPARAMS    "DSA PARAMETERS"
55 # define PEM_STRING_ECDSA_PUBLIC "ECDSA PUBLIC KEY"
56 # define PEM_STRING_ECPARAMETERS "EC PARAMETERS"
57 # define PEM_STRING_ECPRIVATEKEY "EC PRIVATE KEY"
58 # define PEM_STRING_PARAMETERS   "PARAMETERS"
59 # define PEM_STRING_CMS          "CMS"
60 # define PEM_STRING_SM2PRIVATEKEY "SM2 PRIVATE KEY"
61 # define PEM_STRING_SM2PARAMETERS "SM2 PARAMETERS"
62 # define PEM_STRING_ACERT        "ATTRIBUTE CERTIFICATE"
63 
64 # define PEM_TYPE_ENCRYPTED      10
65 # define PEM_TYPE_MIC_ONLY       20
66 # define PEM_TYPE_MIC_CLEAR      30
67 # define PEM_TYPE_CLEAR          40
68 
69 /*
70  * These macros make the PEM_read/PEM_write functions easier to maintain and
71  * write. Now they are all implemented with either: IMPLEMENT_PEM_rw(...) or
72  * IMPLEMENT_PEM_rw_cb(...)
73  */
74 
75 # define PEM_read_cb_fnsig(name, type, INTYPE, readname)                \
76     type *PEM_##readname##_##name(INTYPE *out, type **x,                \
77                                  pem_password_cb *cb, void *u)
78 # define PEM_read_cb_ex_fnsig(name, type, INTYPE, readname)             \
79     type *PEM_##readname##_##name##_ex(INTYPE *out, type **x,           \
80                                        pem_password_cb *cb, void *u,    \
81                                        OSSL_LIB_CTX *libctx,            \
82                                        const char *propq)
83 
84 # define PEM_write_fnsig(name, type, OUTTYPE, writename)                \
85     int PEM_##writename##_##name(OUTTYPE *out, const type *x)
86 # define PEM_write_cb_fnsig(name, type, OUTTYPE, writename)             \
87     int PEM_##writename##_##name(OUTTYPE *out, const type *x,           \
88                                  const EVP_CIPHER *enc,                 \
89                                  const unsigned char *kstr, int klen,   \
90                                  pem_password_cb *cb, void *u)
91 # define PEM_write_ex_fnsig(name, type, OUTTYPE, writename)             \
92     int PEM_##writename##_##name##_ex(OUTTYPE *out, const type *x,      \
93                                       OSSL_LIB_CTX *libctx,             \
94                                       const char *propq)
95 # define PEM_write_cb_ex_fnsig(name, type, OUTTYPE, writename)          \
96     int PEM_##writename##_##name##_ex(OUTTYPE *out, const type *x,      \
97                                       const EVP_CIPHER *enc,            \
98                                       const unsigned char *kstr, int klen, \
99                                       pem_password_cb *cb, void *u,     \
100                                       OSSL_LIB_CTX *libctx,             \
101                                       const char *propq)
102 
103 # ifdef OPENSSL_NO_STDIO
104 
105 #  define IMPLEMENT_PEM_read_fp(name, type, str, asn1) /**/
106 #  define IMPLEMENT_PEM_write_fp(name, type, str, asn1) /**/
107 #  ifndef OPENSSL_NO_DEPRECATED_3_0
108 #   define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1) /**/
109 #  endif
110 #  define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1) /**/
111 #  ifndef OPENSSL_NO_DEPRECATED_3_0
112 #   define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1) /**/
113 #  endif
114 # else
115 
116 #  define IMPLEMENT_PEM_read_fp(name, type, str, asn1)                  \
117     type *PEM_read_##name(FILE *fp, type **x, pem_password_cb *cb, void *u) \
118     {                                                                   \
119         return PEM_ASN1_read((d2i_of_void *)d2i_##asn1, str, fp,        \
120                              (void **)x, cb, u);                        \
121     }
122 
123 #  define IMPLEMENT_PEM_write_fp(name, type, str, asn1)                 \
124     PEM_write_fnsig(name, type, FILE, write)                            \
125     {                                                                   \
126         return PEM_ASN1_write((i2d_of_void *)i2d_##asn1, str, out,      \
127                               x, NULL, NULL, 0, NULL, NULL);            \
128     }
129 
130 #  ifndef OPENSSL_NO_DEPRECATED_3_0
131 #   define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)  \
132     IMPLEMENT_PEM_write_fp(name, type, str, asn1)
133 #  endif
134 
135 #  define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)              \
136     PEM_write_cb_fnsig(name, type, FILE, write)                         \
137     {                                                                   \
138         return PEM_ASN1_write((i2d_of_void *)i2d_##asn1, str, out,      \
139                               x, enc, kstr, klen, cb, u);               \
140     }
141 
142 #  ifndef OPENSSL_NO_DEPRECATED_3_0
143 #   define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)       \
144     IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
145 #  endif
146 # endif
147 
148 # define IMPLEMENT_PEM_read_bio(name, type, str, asn1)                  \
149     type *PEM_read_bio_##name(BIO *bp, type **x,                        \
150                               pem_password_cb *cb, void *u)             \
151     {                                                                   \
152         return PEM_ASN1_read_bio((d2i_of_void *)d2i_##asn1, str, bp,    \
153                                  (void **)x, cb, u);                    \
154     }
155 
156 # define IMPLEMENT_PEM_write_bio(name, type, str, asn1)                 \
157     PEM_write_fnsig(name, type, BIO, write_bio)                         \
158     {                                                                   \
159         return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1, str, out,  \
160                                   x, NULL,NULL,0,NULL,NULL);            \
161     }
162 
163 # ifndef OPENSSL_NO_DEPRECATED_3_0
164 #  define IMPLEMENT_PEM_write_bio_const(name, type, str, asn1)   \
165     IMPLEMENT_PEM_write_bio(name, type, str, asn1)
166 # endif
167 
168 # define IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)              \
169     PEM_write_cb_fnsig(name, type, BIO, write_bio)                      \
170     {                                                                   \
171         return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1, str, out,  \
172                                   x, enc, kstr, klen, cb, u);           \
173     }
174 
175 # ifndef OPENSSL_NO_DEPRECATED_3_0
176 #  define IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1)  \
177     IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)
178 # endif
179 
180 # define IMPLEMENT_PEM_write(name, type, str, asn1) \
181         IMPLEMENT_PEM_write_bio(name, type, str, asn1) \
182         IMPLEMENT_PEM_write_fp(name, type, str, asn1)
183 
184 # ifndef OPENSSL_NO_DEPRECATED_3_0
185 #  define IMPLEMENT_PEM_write_const(name, type, str, asn1) \
186         IMPLEMENT_PEM_write_bio_const(name, type, str, asn1) \
187         IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)
188 # endif
189 
190 # define IMPLEMENT_PEM_write_cb(name, type, str, asn1) \
191         IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1) \
192         IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
193 
194 # ifndef OPENSSL_NO_DEPRECATED_3_0
195 #  define IMPLEMENT_PEM_write_cb_const(name, type, str, asn1) \
196         IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1) \
197         IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)
198 # endif
199 
200 # define IMPLEMENT_PEM_read(name, type, str, asn1) \
201         IMPLEMENT_PEM_read_bio(name, type, str, asn1) \
202         IMPLEMENT_PEM_read_fp(name, type, str, asn1)
203 
204 # define IMPLEMENT_PEM_rw(name, type, str, asn1) \
205         IMPLEMENT_PEM_read(name, type, str, asn1) \
206         IMPLEMENT_PEM_write(name, type, str, asn1)
207 
208 # ifndef OPENSSL_NO_DEPRECATED_3_0
209 #  define IMPLEMENT_PEM_rw_const(name, type, str, asn1) \
210         IMPLEMENT_PEM_read(name, type, str, asn1) \
211         IMPLEMENT_PEM_write_const(name, type, str, asn1)
212 # endif
213 
214 # define IMPLEMENT_PEM_rw_cb(name, type, str, asn1) \
215         IMPLEMENT_PEM_read(name, type, str, asn1) \
216         IMPLEMENT_PEM_write_cb(name, type, str, asn1)
217 
218 /* These are the same except they are for the declarations */
219 
220 /*
221  * The mysterious 'extern' that's passed to some macros is innocuous,
222  * and is there to quiet pre-C99 compilers that may complain about empty
223  * arguments in macro calls.
224  */
225 # if defined(OPENSSL_NO_STDIO)
226 
227 #  define DECLARE_PEM_read_fp_attr(attr, name, type) /**/
228 #  define DECLARE_PEM_read_fp_ex_attr(attr, name, type) /**/
229 #  define DECLARE_PEM_write_fp_attr(attr, name, type) /**/
230 #  define DECLARE_PEM_write_fp_ex_attr(attr, name, type) /**/
231 #  ifndef OPENSSL_NO_DEPRECATED_3_0
232 #   define DECLARE_PEM_write_fp_const_attr(attr, name, type) /**/
233 #  endif
234 #  define DECLARE_PEM_write_cb_fp_attr(attr, name, type) /**/
235 #  define DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type) /**/
236 
237 # else
238 
239 #  define DECLARE_PEM_read_fp_attr(attr, name, type)                        \
240     attr PEM_read_cb_fnsig(name, type, FILE, read);
241 #  define DECLARE_PEM_read_fp_ex_attr(attr, name, type)                     \
242     attr PEM_read_cb_fnsig(name, type, FILE, read);                         \
243     attr PEM_read_cb_ex_fnsig(name, type, FILE, read);
244 
245 #  define DECLARE_PEM_write_fp_attr(attr, name, type)                       \
246     attr PEM_write_fnsig(name, type, FILE, write);
247 #  define DECLARE_PEM_write_fp_ex_attr(attr, name, type)                    \
248     attr PEM_write_fnsig(name, type, FILE, write);                          \
249     attr PEM_write_ex_fnsig(name, type, FILE, write);
250 #  ifndef OPENSSL_NO_DEPRECATED_3_0
251 #   define DECLARE_PEM_write_fp_const_attr(attr, name, type)                \
252     attr PEM_write_fnsig(name, type, FILE, write);
253 #  endif
254 #  define DECLARE_PEM_write_cb_fp_attr(attr, name, type)                    \
255     attr PEM_write_cb_fnsig(name, type, FILE, write);
256 #  define DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type)                 \
257     attr PEM_write_cb_fnsig(name, type, FILE, write);                       \
258     attr PEM_write_cb_ex_fnsig(name, type, FILE, write);
259 
260 # endif
261 
262 # define DECLARE_PEM_read_fp(name, type)                                    \
263     DECLARE_PEM_read_fp_attr(extern, name, type)
264 # define DECLARE_PEM_write_fp(name, type)                                   \
265     DECLARE_PEM_write_fp_attr(extern, name, type)
266 # ifndef OPENSSL_NO_DEPRECATED_3_0
267 #   define DECLARE_PEM_write_fp_const(name, type)                           \
268     DECLARE_PEM_write_fp_const_attr(extern, name, type)
269 # endif
270 # define DECLARE_PEM_write_cb_fp(name, type)                                \
271     DECLARE_PEM_write_cb_fp_attr(extern, name, type)
272 
273 #  define DECLARE_PEM_read_bio_attr(attr, name, type)                       \
274     attr PEM_read_cb_fnsig(name, type, BIO, read_bio);
275 #  define DECLARE_PEM_read_bio_ex_attr(attr, name, type)                    \
276     attr PEM_read_cb_fnsig(name, type, BIO, read_bio);                      \
277     attr PEM_read_cb_ex_fnsig(name, type, BIO, read_bio);
278 # define DECLARE_PEM_read_bio(name, type)                                   \
279     DECLARE_PEM_read_bio_attr(extern, name, type)
280 # define DECLARE_PEM_read_bio_ex(name, type)                                \
281     DECLARE_PEM_read_bio_ex_attr(extern, name, type)
282 
283 # define DECLARE_PEM_write_bio_attr(attr, name, type)                       \
284     attr PEM_write_fnsig(name, type, BIO, write_bio);
285 # define DECLARE_PEM_write_bio_ex_attr(attr, name, type)                    \
286     attr PEM_write_fnsig(name, type, BIO, write_bio);                       \
287     attr PEM_write_ex_fnsig(name, type, BIO, write_bio);
288 # define DECLARE_PEM_write_bio(name, type)                                  \
289     DECLARE_PEM_write_bio_attr(extern, name, type)
290 # define DECLARE_PEM_write_bio_ex(name, type)                               \
291     DECLARE_PEM_write_bio_ex_attr(extern, name, type)
292 
293 # ifndef OPENSSL_NO_DEPRECATED_3_0
294 #  define DECLARE_PEM_write_bio_const_attr(attr, name, type)                \
295     attr PEM_write_fnsig(name, type, BIO, write_bio);
296 #  define DECLARE_PEM_write_bio_const(name, type)      \
297     DECLARE_PEM_write_bio_const_attr(extern, name, type)
298 # endif
299 
300 # define DECLARE_PEM_write_cb_bio_attr(attr, name, type)                    \
301     attr PEM_write_cb_fnsig(name, type, BIO, write_bio);
302 # define DECLARE_PEM_write_cb_bio_ex_attr(attr, name, type)                 \
303     attr PEM_write_cb_fnsig(name, type, BIO, write_bio);                    \
304     attr PEM_write_cb_ex_fnsig(name, type, BIO, write_bio);
305 # define DECLARE_PEM_write_cb_bio(name, type)                               \
306     DECLARE_PEM_write_cb_bio_attr(extern, name, type)
307 # define DECLARE_PEM_write_cb_ex_bio(name, type)                            \
308     DECLARE_PEM_write_cb_bio_ex_attr(extern, name, type)
309 
310 # define DECLARE_PEM_write_attr(attr, name, type)                           \
311     DECLARE_PEM_write_bio_attr(attr, name, type)                            \
312     DECLARE_PEM_write_fp_attr(attr, name, type)
313 # define DECLARE_PEM_write_ex_attr(attr, name, type)                        \
314     DECLARE_PEM_write_bio_ex_attr(attr, name, type)                         \
315     DECLARE_PEM_write_fp_ex_attr(attr, name, type)
316 # define DECLARE_PEM_write(name, type) \
317     DECLARE_PEM_write_attr(extern, name, type)
318 # define DECLARE_PEM_write_ex(name, type) \
319     DECLARE_PEM_write_ex_attr(extern, name, type)
320 # ifndef OPENSSL_NO_DEPRECATED_3_0
321 #  define DECLARE_PEM_write_const_attr(attr, name, type)                    \
322     DECLARE_PEM_write_bio_const_attr(attr, name, type)                      \
323     DECLARE_PEM_write_fp_const_attr(attr, name, type)
324 #  define DECLARE_PEM_write_const(name, type)                               \
325     DECLARE_PEM_write_const_attr(extern, name, type)
326 # endif
327 # define DECLARE_PEM_write_cb_attr(attr, name, type)                        \
328     DECLARE_PEM_write_cb_bio_attr(attr, name, type)                         \
329     DECLARE_PEM_write_cb_fp_attr(attr, name, type)
330 # define DECLARE_PEM_write_cb_ex_attr(attr, name, type)                     \
331     DECLARE_PEM_write_cb_bio_ex_attr(attr, name, type)                      \
332     DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type)
333 # define DECLARE_PEM_write_cb(name, type)                                   \
334     DECLARE_PEM_write_cb_attr(extern, name, type)
335 # define DECLARE_PEM_write_cb_ex(name, type)                                \
336     DECLARE_PEM_write_cb_ex_attr(extern, name, type)
337 # define DECLARE_PEM_read_attr(attr, name, type)                            \
338     DECLARE_PEM_read_bio_attr(attr, name, type)                             \
339     DECLARE_PEM_read_fp_attr(attr, name, type)
340 # define DECLARE_PEM_read_ex_attr(attr, name, type)                         \
341     DECLARE_PEM_read_bio_ex_attr(attr, name, type)                          \
342     DECLARE_PEM_read_fp_ex_attr(attr, name, type)
343 # define DECLARE_PEM_read(name, type)                                       \
344     DECLARE_PEM_read_attr(extern, name, type)
345 # define DECLARE_PEM_read_ex(name, type)                                    \
346     DECLARE_PEM_read_ex_attr(extern, name, type)
347 # define DECLARE_PEM_rw_attr(attr, name, type)                              \
348     DECLARE_PEM_read_attr(attr, name, type)                                 \
349     DECLARE_PEM_write_attr(attr, name, type)
350 # define DECLARE_PEM_rw_ex_attr(attr, name, type)                           \
351     DECLARE_PEM_read_ex_attr(attr, name, type)                              \
352     DECLARE_PEM_write_ex_attr(attr, name, type)
353 # define DECLARE_PEM_rw(name, type) \
354     DECLARE_PEM_rw_attr(extern, name, type)
355 # define DECLARE_PEM_rw_ex(name, type) \
356     DECLARE_PEM_rw_ex_attr(extern, name, type)
357 # ifndef OPENSSL_NO_DEPRECATED_3_0
358 #  define DECLARE_PEM_rw_const_attr(attr, name, type)                       \
359     DECLARE_PEM_read_attr(attr, name, type)                                 \
360     DECLARE_PEM_write_const_attr(attr, name, type)
361 #  define DECLARE_PEM_rw_const(name, type) \
362     DECLARE_PEM_rw_const_attr(extern, name, type)
363 # endif
364 # define DECLARE_PEM_rw_cb_attr(attr, name, type)                           \
365     DECLARE_PEM_read_attr(attr, name, type)                                 \
366     DECLARE_PEM_write_cb_attr(attr, name, type)
367 # define DECLARE_PEM_rw_cb_ex_attr(attr, name, type)                        \
368     DECLARE_PEM_read_ex_attr(attr, name, type)                              \
369     DECLARE_PEM_write_cb_ex_attr(attr, name, type)
370 # define DECLARE_PEM_rw_cb(name, type) \
371     DECLARE_PEM_rw_cb_attr(extern, name, type)
372 # define DECLARE_PEM_rw_cb_ex(name, type) \
373     DECLARE_PEM_rw_cb_ex_attr(extern, name, type)
374 
375 int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher);
376 int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *len,
377                   pem_password_cb *callback, void *u);
378 
379 int PEM_read_bio(BIO *bp, char **name, char **header,
380                  unsigned char **data, long *len);
381 #   define PEM_FLAG_SECURE             0x1
382 #   define PEM_FLAG_EAY_COMPATIBLE     0x2
383 #   define PEM_FLAG_ONLY_B64           0x4
384 int PEM_read_bio_ex(BIO *bp, char **name, char **header,
385                     unsigned char **data, long *len, unsigned int flags);
386 int PEM_bytes_read_bio_secmem(unsigned char **pdata, long *plen, char **pnm,
387                               const char *name, BIO *bp, pem_password_cb *cb,
388                               void *u);
389 int PEM_write_bio(BIO *bp, const char *name, const char *hdr,
390                   const unsigned char *data, long len);
391 int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm,
392                        const char *name, BIO *bp, pem_password_cb *cb,
393                        void *u);
394 void *PEM_ASN1_read_bio(d2i_of_void *d2i, const char *name, BIO *bp, void **x,
395                         pem_password_cb *cb, void *u);
396 int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp,
397                        const void *x, const EVP_CIPHER *enc,
398                        const unsigned char *kstr, int klen,
399                        pem_password_cb *cb, void *u);
400 int PEM_ASN1_write_bio_ctx(OSSL_i2d_of_void_ctx *i2d, void *vctx,
401                            const char *name, BIO *bp, const void *x,
402                            const EVP_CIPHER *enc, const unsigned char *kstr,
403                            int klen, pem_password_cb *cb, void *u);
404 
405 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
406                                             pem_password_cb *cb, void *u);
407 STACK_OF(X509_INFO)
408 *PEM_X509_INFO_read_bio_ex(BIO *bp, STACK_OF(X509_INFO) *sk,
409                            pem_password_cb *cb, void *u, OSSL_LIB_CTX *libctx,
410                            const char *propq);
411 
412 int PEM_X509_INFO_write_bio(BIO *bp, const X509_INFO *xi, EVP_CIPHER *enc,
413                             const unsigned char *kstr, int klen,
414                             pem_password_cb *cd, void *u);
415 
416 #ifndef OPENSSL_NO_STDIO
417 int PEM_read(FILE *fp, char **name, char **header,
418              unsigned char **data, long *len);
419 int PEM_write(FILE *fp, const char *name, const char *hdr,
420               const unsigned char *data, long len);
421 void *PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp, void **x,
422                     pem_password_cb *cb, void *u);
423 int PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp,
424                    const void *x, const EVP_CIPHER *enc,
425                    const unsigned char *kstr, int klen,
426                    pem_password_cb *callback, void *u);
427 STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
428                                         pem_password_cb *cb, void *u);
429 STACK_OF(X509_INFO)
430 *PEM_X509_INFO_read_ex(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb,
431                        void *u, OSSL_LIB_CTX *libctx, const char *propq);
432 #endif
433 
434 int PEM_SignInit(EVP_MD_CTX *ctx, EVP_MD *type);
435 int PEM_SignUpdate(EVP_MD_CTX *ctx, const unsigned char *d, unsigned int cnt);
436 int PEM_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
437                   unsigned int *siglen, EVP_PKEY *pkey);
438 
439 /* The default pem_password_cb that's used internally */
440 int PEM_def_callback(char *buf, int num, int rwflag, void *userdata);
441 void PEM_proc_type(char *buf, int type);
442 void PEM_dek_info(char *buf, const char *type, int len, const char *str);
443 
444 # include <openssl/symhacks.h>
445 
446 DECLARE_PEM_rw(X509, X509)
447 DECLARE_PEM_rw(X509_AUX, X509)
448 DECLARE_PEM_rw(X509_REQ, X509_REQ)
449 DECLARE_PEM_write(X509_REQ_NEW, X509_REQ)
450 DECLARE_PEM_rw(X509_CRL, X509_CRL)
451 DECLARE_PEM_rw(X509_PUBKEY, X509_PUBKEY)
452 DECLARE_PEM_rw(PKCS7, PKCS7)
453 DECLARE_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE)
454 DECLARE_PEM_rw(PKCS8, X509_SIG)
455 DECLARE_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
456 # ifndef OPENSSL_NO_DEPRECATED_3_0
457 DECLARE_PEM_rw_cb_attr(OSSL_DEPRECATEDIN_3_0, RSAPrivateKey, RSA)
458 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, RSAPublicKey, RSA)
459 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, RSA_PUBKEY, RSA)
460 # endif
461 # ifndef OPENSSL_NO_DEPRECATED_3_0
462 #  ifndef OPENSSL_NO_DSA
463 DECLARE_PEM_rw_cb_attr(OSSL_DEPRECATEDIN_3_0, DSAPrivateKey, DSA)
464 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DSA_PUBKEY, DSA)
465 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DSAparams, DSA)
466 #  endif
467 # endif
468 
469 # ifndef OPENSSL_NO_DEPRECATED_3_0
470 #  ifndef OPENSSL_NO_EC
471 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, ECPKParameters, EC_GROUP)
472 DECLARE_PEM_rw_cb_attr(OSSL_DEPRECATEDIN_3_0, ECPrivateKey, EC_KEY)
473 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, EC_PUBKEY, EC_KEY)
474 #  endif
475 # endif
476 
477 # ifndef OPENSSL_NO_DH
478 #  ifndef OPENSSL_NO_DEPRECATED_3_0
479 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DHparams, DH)
480 DECLARE_PEM_write_attr(OSSL_DEPRECATEDIN_3_0, DHxparams, DH)
481 #  endif
482 # endif
483 DECLARE_PEM_rw_cb_ex(PrivateKey, EVP_PKEY)
484 DECLARE_PEM_rw_ex(PUBKEY, EVP_PKEY)
485 
486 int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
487                                          const EVP_CIPHER *enc,
488                                          const unsigned char *kstr, int klen,
489                                          pem_password_cb *cb, void *u);
490 
491 /* Why do these take a signed char *kstr? */
492 int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, const EVP_PKEY *x, int nid,
493                                       const char *kstr, int klen,
494                                       pem_password_cb *cb, void *u);
495 int PEM_write_bio_PKCS8PrivateKey(BIO *, const EVP_PKEY *, const EVP_CIPHER *,
496                                   const char *kstr, int klen,
497                                   pem_password_cb *cb, void *u);
498 int i2d_PKCS8PrivateKey_bio(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
499                             const char *kstr, int klen,
500                             pem_password_cb *cb, void *u);
501 int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, const EVP_PKEY *x, int nid,
502                                 const char *kstr, int klen,
503                                 pem_password_cb *cb, void *u);
504 EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
505                                   void *u);
506 
507 # ifndef OPENSSL_NO_STDIO
508 int i2d_PKCS8PrivateKey_fp(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
509                            const char *kstr, int klen,
510                            pem_password_cb *cb, void *u);
511 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, const EVP_PKEY *x, int nid,
512                                const char *kstr, int klen,
513                                pem_password_cb *cb, void *u);
514 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, const EVP_PKEY *x, int nid,
515                                   const char *kstr, int klen,
516                                   pem_password_cb *cb, void *u);
517 
518 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
519                                  void *u);
520 
521 int PEM_write_PKCS8PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
522                               const char *kstr, int klen,
523                               pem_password_cb *cd, void *u);
524 # endif
525 EVP_PKEY *PEM_read_bio_Parameters_ex(BIO *bp, EVP_PKEY **x,
526                                      OSSL_LIB_CTX *libctx, const char *propq);
527 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x);
528 int PEM_write_bio_Parameters(BIO *bp, const EVP_PKEY *x);
529 
530 EVP_PKEY *b2i_PrivateKey(const unsigned char **in, long length);
531 EVP_PKEY *b2i_PublicKey(const unsigned char **in, long length);
532 EVP_PKEY *b2i_PrivateKey_bio(BIO *in);
533 EVP_PKEY *b2i_PublicKey_bio(BIO *in);
534 int i2b_PrivateKey_bio(BIO *out, const EVP_PKEY *pk);
535 int i2b_PublicKey_bio(BIO *out, const EVP_PKEY *pk);
536 EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u);
537 EVP_PKEY *b2i_PVK_bio_ex(BIO *in, pem_password_cb *cb, void *u,
538                          OSSL_LIB_CTX *libctx, const char *propq);
539 int i2b_PVK_bio(BIO *out, const EVP_PKEY *pk, int enclevel,
540                 pem_password_cb *cb, void *u);
541 int i2b_PVK_bio_ex(BIO *out, const EVP_PKEY *pk, int enclevel,
542                    pem_password_cb *cb, void *u,
543                    OSSL_LIB_CTX *libctx, const char *propq);
544 
545 # ifdef  __cplusplus
546 }
547 # endif
548 #endif
549