1 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
2  * All rights reserved.
3  *
4  * This package is an SSL implementation written
5  * by Eric Young (eay@cryptsoft.com).
6  * The implementation was written so as to conform with Netscapes SSL.
7  *
8  * This library is free for commercial and non-commercial use as long as
9  * the following conditions are aheared to.  The following conditions
10  * apply to all code found in this distribution, be it the RC4, RSA,
11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12  * included with this distribution is covered by the same copyright terms
13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14  *
15  * Copyright remains Eric Young's, and as such any Copyright notices in
16  * the code are not to be removed.
17  * If this package is used in a product, Eric Young should be given attribution
18  * as the author of the parts of the library used.
19  * This can be in the form of a textual message at program startup or
20  * in documentation (online or textual) provided with the package.
21  *
22  * Redistribution and use in source and binary forms, with or without
23  * modification, are permitted provided that the following conditions
24  * are met:
25  * 1. Redistributions of source code must retain the copyright
26  *    notice, this list of conditions and the following disclaimer.
27  * 2. Redistributions in binary form must reproduce the above copyright
28  *    notice, this list of conditions and the following disclaimer in the
29  *    documentation and/or other materials provided with the distribution.
30  * 3. All advertising materials mentioning features or use of this software
31  *    must display the following acknowledgement:
32  *    "This product includes cryptographic software written by
33  *     Eric Young (eay@cryptsoft.com)"
34  *    The word 'cryptographic' can be left out if the rouines from the library
35  *    being used are not cryptographic related :-).
36  * 4. If you include any Windows specific code (or a derivative thereof) from
37  *    the apps directory (application code) you must include an acknowledgement:
38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39  *
40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50  * SUCH DAMAGE.
51  *
52  * The licence and distribution terms for any publically available version or
53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
54  * copied and put under another distribution licence
55  * [including the GNU Public Licence.] */
56 
57 #ifndef OPENSSL_HEADER_PEM_H
58 #define OPENSSL_HEADER_PEM_H
59 
60 #include <openssl/base64.h>
61 #include <openssl/bio.h>
62 #include <openssl/cipher.h>
63 #include <openssl/digest.h>
64 #include <openssl/evp.h>
65 #include <openssl/pkcs7.h>
66 #include <openssl/stack.h>
67 #include <openssl/x509.h>
68 
69 // For compatibility with open-iscsi, which assumes that it can get
70 // |OPENSSL_malloc| from pem.h or err.h
71 #include <openssl/crypto.h>
72 
73 #ifdef __cplusplus
74 extern "C" {
75 #endif
76 
77 
78 #define PEM_BUFSIZE 1024
79 
80 #define PEM_STRING_X509_OLD "X509 CERTIFICATE"
81 #define PEM_STRING_X509 "CERTIFICATE"
82 #define PEM_STRING_X509_PAIR "CERTIFICATE PAIR"
83 #define PEM_STRING_X509_TRUSTED "TRUSTED CERTIFICATE"
84 #define PEM_STRING_X509_REQ_OLD "NEW CERTIFICATE REQUEST"
85 #define PEM_STRING_X509_REQ "CERTIFICATE REQUEST"
86 #define PEM_STRING_X509_CRL "X509 CRL"
87 #define PEM_STRING_EVP_PKEY "ANY PRIVATE KEY"
88 #define PEM_STRING_PUBLIC "PUBLIC KEY"
89 #define PEM_STRING_RSA "RSA PRIVATE KEY"
90 #define PEM_STRING_RSA_PUBLIC "RSA PUBLIC KEY"
91 #define PEM_STRING_DSA "DSA PRIVATE KEY"
92 #define PEM_STRING_DSA_PUBLIC "DSA PUBLIC KEY"
93 #define PEM_STRING_EC "EC PRIVATE KEY"
94 #define PEM_STRING_PKCS7 "PKCS7"
95 #define PEM_STRING_PKCS7_SIGNED "PKCS #7 SIGNED DATA"
96 #define PEM_STRING_PKCS8 "ENCRYPTED PRIVATE KEY"
97 #define PEM_STRING_PKCS8INF "PRIVATE KEY"
98 #define PEM_STRING_DHPARAMS "DH PARAMETERS"
99 #define PEM_STRING_SSL_SESSION "SSL SESSION PARAMETERS"
100 #define PEM_STRING_DSAPARAMS "DSA PARAMETERS"
101 #define PEM_STRING_ECDSA_PUBLIC "ECDSA PUBLIC KEY"
102 #define PEM_STRING_ECPRIVATEKEY "EC PRIVATE KEY"
103 #define PEM_STRING_CMS "CMS"
104 
105 // enc_type is one off
106 #define PEM_TYPE_ENCRYPTED 10
107 #define PEM_TYPE_MIC_ONLY 20
108 #define PEM_TYPE_MIC_CLEAR 30
109 #define PEM_TYPE_CLEAR 40
110 
111 // These macros make the PEM_read/PEM_write functions easier to maintain and
112 // write. Now they are all implemented with either:
113 // IMPLEMENT_PEM_rw(...) or IMPLEMENT_PEM_rw_cb(...)
114 
115 #ifdef OPENSSL_NO_FP_API
116 
117 #define IMPLEMENT_PEM_read_fp(name, type, str, asn1)            //
118 #define IMPLEMENT_PEM_write_fp(name, type, str, asn1)           //
119 #define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)     //
120 #define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)        //
121 #define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)  //
122 
123 #else
124 
125 #define IMPLEMENT_PEM_read_fp(name, type, str, asn1)                         \
126   static void *pem_read_##name##_d2i(void **x, const unsigned char **inp,    \
127                                      long len) {                             \
128     return d2i_##asn1((type **)x, inp, len);                                 \
129   }                                                                          \
130   OPENSSL_EXPORT type *PEM_read_##name(FILE *fp, type **x,                   \
131                                        pem_password_cb *cb, void *u) {       \
132     return (type *)PEM_ASN1_read(pem_read_##name##_d2i, str, fp, (void **)x, \
133                                  cb, u);                                     \
134   }
135 
136 #define IMPLEMENT_PEM_write_fp(name, type, str, asn1)                        \
137   static int pem_write_##name##_i2d(const void *x, unsigned char **outp) {   \
138     return i2d_##asn1((type *)x, outp);                                      \
139   }                                                                          \
140   OPENSSL_EXPORT int PEM_write_##name(FILE *fp, type *x) {                   \
141     return PEM_ASN1_write(pem_write_##name##_i2d, str, fp, x, NULL, NULL, 0, \
142                           NULL, NULL);                                       \
143   }
144 
145 #define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)                 \
146   static int pem_write_##name##_i2d(const void *x, unsigned char **outp) {  \
147     return i2d_##asn1((const type *)x, outp);                               \
148   }                                                                         \
149   OPENSSL_EXPORT int PEM_write_##name(FILE *fp, const type *x) {            \
150     return PEM_ASN1_write(pem_write_##name##_i2d, str, fp, (void *)x, NULL, \
151                           NULL, 0, NULL, NULL);                             \
152   }
153 
154 #define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)                       \
155   static int pem_write_##name##_i2d(const void *x, unsigned char **outp) {     \
156     return i2d_##asn1((type *)x, outp);                                        \
157   }                                                                            \
158   OPENSSL_EXPORT int PEM_write_##name(                                         \
159       FILE *fp, type *x, const EVP_CIPHER *enc, unsigned char *kstr, int klen, \
160       pem_password_cb *cb, void *u) {                                          \
161     return PEM_ASN1_write(pem_write_##name##_i2d, str, fp, x, enc, kstr, klen, \
162                           cb, u);                                              \
163   }
164 
165 #define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)                 \
166   static int pem_write_##name##_i2d(const void *x, unsigned char **outp) {     \
167     return i2d_##asn1((const type *)x, outp);                                  \
168   }                                                                            \
169   OPENSSL_EXPORT int PEM_write_##name(                                         \
170       FILE *fp, type *x, const EVP_CIPHER *enc, unsigned char *kstr, int klen, \
171       pem_password_cb *cb, void *u) {                                          \
172     return PEM_ASN1_write(pem_write_##name##_i2d, str, fp, x, enc, kstr, klen, \
173                           cb, u);                                              \
174   }
175 
176 #endif
177 
178 #define IMPLEMENT_PEM_read_bio(name, type, str, asn1)                         \
179   static void *pem_read_bio_##name##_d2i(void **x, const unsigned char **inp, \
180                                          long len) {                          \
181     return d2i_##asn1((type **)x, inp, len);                                  \
182   }                                                                           \
183   OPENSSL_EXPORT type *PEM_read_bio_##name(BIO *bp, type **x,                 \
184                                            pem_password_cb *cb, void *u) {    \
185     return (type *)PEM_ASN1_read_bio(pem_read_bio_##name##_d2i, str, bp,      \
186                                      (void **)x, cb, u);                      \
187   }
188 
189 #define IMPLEMENT_PEM_write_bio(name, type, str, asn1)                         \
190   static int pem_write_bio_##name##_i2d(const void *x, unsigned char **outp) { \
191     return i2d_##asn1((type *)x, outp);                                        \
192   }                                                                            \
193   OPENSSL_EXPORT int PEM_write_bio_##name(BIO *bp, type *x) {                  \
194     return PEM_ASN1_write_bio(pem_write_bio_##name##_i2d, str, bp, x, NULL,    \
195                               NULL, 0, NULL, NULL);                            \
196   }
197 
198 #define IMPLEMENT_PEM_write_bio_const(name, type, str, asn1)                   \
199   static int pem_write_bio_##name##_i2d(const void *x, unsigned char **outp) { \
200     return i2d_##asn1((const type *)x, outp);                                  \
201   }                                                                            \
202   OPENSSL_EXPORT int PEM_write_bio_##name(BIO *bp, const type *x) {            \
203     return PEM_ASN1_write_bio(pem_write_bio_##name##_i2d, str, bp, (void *)x,  \
204                               NULL, NULL, 0, NULL, NULL);                      \
205   }
206 
207 #define IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)                      \
208   static int pem_write_bio_##name##_i2d(const void *x, unsigned char **outp) { \
209     return i2d_##asn1((type *)x, outp);                                        \
210   }                                                                            \
211   OPENSSL_EXPORT int PEM_write_bio_##name(                                     \
212       BIO *bp, type *x, const EVP_CIPHER *enc, unsigned char *kstr, int klen,  \
213       pem_password_cb *cb, void *u) {                                          \
214     return PEM_ASN1_write_bio(pem_write_bio_##name##_i2d, str, bp, x, enc,     \
215                               kstr, klen, cb, u);                              \
216   }
217 
218 #define IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1)                \
219   static int pem_write_bio_##name##_i2d(const void *x, unsigned char **outp) { \
220     return i2d_##asn1((const type *)x, outp);                                  \
221   }                                                                            \
222   OPENSSL_EXPORT int PEM_write_bio_##name(                                     \
223       BIO *bp, type *x, const EVP_CIPHER *enc, unsigned char *kstr, int klen,  \
224       pem_password_cb *cb, void *u) {                                          \
225     return PEM_ASN1_write_bio(pem_write_bio_##name##_i2d, str, bp, (void *)x,  \
226                               enc, kstr, klen, cb, u);                         \
227   }
228 
229 #define IMPLEMENT_PEM_write(name, type, str, asn1) \
230   IMPLEMENT_PEM_write_bio(name, type, str, asn1)   \
231   IMPLEMENT_PEM_write_fp(name, type, str, asn1)
232 
233 #define IMPLEMENT_PEM_write_const(name, type, str, asn1) \
234   IMPLEMENT_PEM_write_bio_const(name, type, str, asn1)   \
235   IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)
236 
237 #define IMPLEMENT_PEM_write_cb(name, type, str, asn1) \
238   IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)   \
239   IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
240 
241 #define IMPLEMENT_PEM_write_cb_const(name, type, str, asn1) \
242   IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1)   \
243   IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)
244 
245 #define IMPLEMENT_PEM_read(name, type, str, asn1) \
246   IMPLEMENT_PEM_read_bio(name, type, str, asn1)   \
247   IMPLEMENT_PEM_read_fp(name, type, str, asn1)
248 
249 #define IMPLEMENT_PEM_rw(name, type, str, asn1) \
250   IMPLEMENT_PEM_read(name, type, str, asn1)     \
251   IMPLEMENT_PEM_write(name, type, str, asn1)
252 
253 #define IMPLEMENT_PEM_rw_const(name, type, str, asn1) \
254   IMPLEMENT_PEM_read(name, type, str, asn1)           \
255   IMPLEMENT_PEM_write_const(name, type, str, asn1)
256 
257 #define IMPLEMENT_PEM_rw_cb(name, type, str, asn1) \
258   IMPLEMENT_PEM_read(name, type, str, asn1)        \
259   IMPLEMENT_PEM_write_cb(name, type, str, asn1)
260 
261 // These are the same except they are for the declarations
262 
263 #if defined(OPENSSL_NO_FP_API)
264 
265 #define DECLARE_PEM_read_fp(name, type)      //
266 #define DECLARE_PEM_write_fp(name, type)     //
267 #define DECLARE_PEM_write_cb_fp(name, type)  //
268 
269 #else
270 
271 #define DECLARE_PEM_read_fp(name, type)                    \
272   OPENSSL_EXPORT type *PEM_read_##name(FILE *fp, type **x, \
273                                        pem_password_cb *cb, void *u);
274 
275 #define DECLARE_PEM_write_fp(name, type) \
276   OPENSSL_EXPORT int PEM_write_##name(FILE *fp, type *x);
277 
278 #define DECLARE_PEM_write_fp_const(name, type) \
279   OPENSSL_EXPORT int PEM_write_##name(FILE *fp, const type *x);
280 
281 #define DECLARE_PEM_write_cb_fp(name, type)                                    \
282   OPENSSL_EXPORT int PEM_write_##name(                                         \
283       FILE *fp, type *x, const EVP_CIPHER *enc, unsigned char *kstr, int klen, \
284       pem_password_cb *cb, void *u);
285 
286 #endif
287 
288 #define DECLARE_PEM_read_bio(name, type)                      \
289   OPENSSL_EXPORT type *PEM_read_bio_##name(BIO *bp, type **x, \
290                                            pem_password_cb *cb, void *u);
291 
292 #define DECLARE_PEM_write_bio(name, type) \
293   OPENSSL_EXPORT int PEM_write_bio_##name(BIO *bp, type *x);
294 
295 #define DECLARE_PEM_write_bio_const(name, type) \
296   OPENSSL_EXPORT int PEM_write_bio_##name(BIO *bp, const type *x);
297 
298 #define DECLARE_PEM_write_cb_bio(name, type)                                  \
299   OPENSSL_EXPORT int PEM_write_bio_##name(                                    \
300       BIO *bp, type *x, const EVP_CIPHER *enc, unsigned char *kstr, int klen, \
301       pem_password_cb *cb, void *u);
302 
303 
304 #define DECLARE_PEM_write(name, type) \
305   DECLARE_PEM_write_bio(name, type)   \
306   DECLARE_PEM_write_fp(name, type)
307 
308 #define DECLARE_PEM_write_const(name, type) \
309   DECLARE_PEM_write_bio_const(name, type)   \
310   DECLARE_PEM_write_fp_const(name, type)
311 
312 #define DECLARE_PEM_write_cb(name, type) \
313   DECLARE_PEM_write_cb_bio(name, type)   \
314   DECLARE_PEM_write_cb_fp(name, type)
315 
316 #define DECLARE_PEM_read(name, type) \
317   DECLARE_PEM_read_bio(name, type)   \
318   DECLARE_PEM_read_fp(name, type)
319 
320 #define DECLARE_PEM_rw(name, type) \
321   DECLARE_PEM_read(name, type)     \
322   DECLARE_PEM_write(name, type)
323 
324 #define DECLARE_PEM_rw_const(name, type) \
325   DECLARE_PEM_read(name, type)           \
326   DECLARE_PEM_write_const(name, type)
327 
328 #define DECLARE_PEM_rw_cb(name, type) \
329   DECLARE_PEM_read(name, type)        \
330   DECLARE_PEM_write_cb(name, type)
331 
332 // "userdata": new with OpenSSL 0.9.4
333 typedef int pem_password_cb(char *buf, int size, int rwflag, void *userdata);
334 
335 OPENSSL_EXPORT int PEM_get_EVP_CIPHER_INFO(char *header,
336                                            EVP_CIPHER_INFO *cipher);
337 OPENSSL_EXPORT int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data,
338                                  long *len, pem_password_cb *callback, void *u);
339 
340 // PEM_read_bio reads from |bp|, until the next PEM block. If one is found, it
341 // returns one and sets |*name|, |*header|, and |*data| to newly-allocated
342 // buffers containing the PEM type, the header block, and the decoded data,
343 // respectively. |*name| and |*header| are NUL-terminated C strings, while
344 // |*data| has |*len| bytes. The caller must release each of |*name|, |*header|,
345 // and |*data| with |OPENSSL_free| when done. If no PEM block is found, this
346 // function returns zero and pushes |PEM_R_NO_START_LINE| to the error queue. If
347 // one is found, but there is an error decoding it, it returns zero and pushes
348 // some other error to the error queue.
349 OPENSSL_EXPORT int PEM_read_bio(BIO *bp, char **name, char **header,
350                                 unsigned char **data, long *len);
351 
352 // PEM_write_bio writes a PEM block to |bp|, containing |len| bytes from |data|
353 // as data. |name| and |hdr| are NUL-terminated C strings containing the PEM
354 // type and header block, respectively. This function returns zero on error and
355 // the number of bytes written on success.
356 OPENSSL_EXPORT int PEM_write_bio(BIO *bp, const char *name, const char *hdr,
357                                  const unsigned char *data, long len);
358 
359 OPENSSL_EXPORT int PEM_bytes_read_bio(unsigned char **pdata, long *plen,
360                                       char **pnm, const char *name, BIO *bp,
361                                       pem_password_cb *cb, void *u);
362 OPENSSL_EXPORT void *PEM_ASN1_read_bio(d2i_of_void *d2i, const char *name,
363                                        BIO *bp, void **x, pem_password_cb *cb,
364                                        void *u);
365 OPENSSL_EXPORT int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name,
366                                       BIO *bp, void *x, const EVP_CIPHER *enc,
367                                       unsigned char *kstr, int klen,
368                                       pem_password_cb *cb, void *u);
369 
370 OPENSSL_EXPORT STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(
371     BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u);
372 OPENSSL_EXPORT int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi,
373                                            EVP_CIPHER *enc, unsigned char *kstr,
374                                            int klen, pem_password_cb *cd,
375                                            void *u);
376 
377 OPENSSL_EXPORT int PEM_read(FILE *fp, char **name, char **header,
378                             unsigned char **data, long *len);
379 OPENSSL_EXPORT int PEM_write(FILE *fp, const char *name, const char *hdr,
380                              const unsigned char *data, long len);
381 OPENSSL_EXPORT void *PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp,
382                                    void **x, pem_password_cb *cb, void *u);
383 OPENSSL_EXPORT int PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp,
384                                   void *x, const EVP_CIPHER *enc,
385                                   unsigned char *kstr, int klen,
386                                   pem_password_cb *callback, void *u);
387 OPENSSL_EXPORT STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp,
388                                                        STACK_OF(X509_INFO) *sk,
389                                                        pem_password_cb *cb,
390                                                        void *u);
391 
392 // PEM_def_callback treats |userdata| as a string and copies it into |buf|,
393 // assuming its |size| is sufficient. Returns the length of the string, or 0
394 // if there is not enough room. If either |buf| or |userdata| is NULL, 0 is
395 // returned. Note that this is different from OpenSSL, which prompts for a
396 // password.
397 OPENSSL_EXPORT int PEM_def_callback(char *buf, int size, int rwflag,
398                                     void *userdata);
399 OPENSSL_EXPORT void PEM_proc_type(char *buf, int type);
400 OPENSSL_EXPORT void PEM_dek_info(char *buf, const char *type, int len,
401                                  char *str);
402 
403 
404 DECLARE_PEM_rw(X509, X509)
405 
406 DECLARE_PEM_rw(X509_AUX, X509)
407 
408 DECLARE_PEM_rw(X509_REQ, X509_REQ)
409 DECLARE_PEM_write(X509_REQ_NEW, X509_REQ)
410 
411 DECLARE_PEM_rw(X509_CRL, X509_CRL)
412 
413 DECLARE_PEM_rw(PKCS7, PKCS7)
414 DECLARE_PEM_rw(PKCS8, X509_SIG)
415 
416 DECLARE_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
417 
418 DECLARE_PEM_rw_cb(RSAPrivateKey, RSA)
419 
420 DECLARE_PEM_rw_const(RSAPublicKey, RSA)
421 DECLARE_PEM_rw(RSA_PUBKEY, RSA)
422 
423 #ifndef OPENSSL_NO_DSA
424 
425 DECLARE_PEM_rw_cb(DSAPrivateKey, DSA)
426 
427 DECLARE_PEM_rw(DSA_PUBKEY, DSA)
428 
429 DECLARE_PEM_rw_const(DSAparams, DSA)
430 
431 #endif
432 
433 DECLARE_PEM_rw_cb(ECPrivateKey, EC_KEY)
434 DECLARE_PEM_rw(EC_PUBKEY, EC_KEY)
435 
436 
437 DECLARE_PEM_rw_const(DHparams, DH)
438 
439 
440 DECLARE_PEM_rw_cb(PrivateKey, EVP_PKEY)
441 
442 DECLARE_PEM_rw(PUBKEY, EVP_PKEY)
443 
444 OPENSSL_EXPORT int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x,
445                                                      int nid, char *kstr,
446                                                      int klen,
447                                                      pem_password_cb *cb,
448                                                      void *u);
449 OPENSSL_EXPORT int PEM_write_bio_PKCS8PrivateKey(BIO *, EVP_PKEY *,
450                                                  const EVP_CIPHER *, char *,
451                                                  int, pem_password_cb *,
452                                                  void *);
453 OPENSSL_EXPORT int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x,
454                                            const EVP_CIPHER *enc, char *kstr,
455                                            int klen, pem_password_cb *cb,
456                                            void *u);
457 OPENSSL_EXPORT int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid,
458                                                char *kstr, int klen,
459                                                pem_password_cb *cb, void *u);
460 OPENSSL_EXPORT EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x,
461                                                  pem_password_cb *cb, void *u);
462 
463 OPENSSL_EXPORT int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x,
464                                           const EVP_CIPHER *enc, char *kstr,
465                                           int klen, pem_password_cb *cb,
466                                           void *u);
467 OPENSSL_EXPORT int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid,
468                                               char *kstr, int klen,
469                                               pem_password_cb *cb, void *u);
470 OPENSSL_EXPORT int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid,
471                                                  char *kstr, int klen,
472                                                  pem_password_cb *cb, void *u);
473 
474 OPENSSL_EXPORT EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x,
475                                                 pem_password_cb *cb, void *u);
476 
477 OPENSSL_EXPORT int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x,
478                                              const EVP_CIPHER *enc, char *kstr,
479                                              int klen, pem_password_cb *cd,
480                                              void *u);
481 
482 
483 #ifdef __cplusplus
484 }
485 #endif
486 
487 #define PEM_R_BAD_BASE64_DECODE 100
488 #define PEM_R_BAD_DECRYPT 101
489 #define PEM_R_BAD_END_LINE 102
490 #define PEM_R_BAD_IV_CHARS 103
491 #define PEM_R_BAD_PASSWORD_READ 104
492 #define PEM_R_CIPHER_IS_NULL 105
493 #define PEM_R_ERROR_CONVERTING_PRIVATE_KEY 106
494 #define PEM_R_NOT_DEK_INFO 107
495 #define PEM_R_NOT_ENCRYPTED 108
496 #define PEM_R_NOT_PROC_TYPE 109
497 #define PEM_R_NO_START_LINE 110
498 #define PEM_R_READ_KEY 111
499 #define PEM_R_SHORT_HEADER 112
500 #define PEM_R_UNSUPPORTED_CIPHER 113
501 #define PEM_R_UNSUPPORTED_ENCRYPTION 114
502 
503 #endif  // OPENSSL_HEADER_PEM_H
504