include/openssl/pem.h

   1 /*
   2  * Copyright 1995-2021 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
  61 # define PEM_TYPE_ENCRYPTED      10
  62 # define PEM_TYPE_MIC_ONLY       20
  63 # define PEM_TYPE_MIC_CLEAR      30
  64 # define PEM_TYPE_CLEAR          40
  65
  66 /*
  67  * These macros make the PEM_read/PEM_write functions easier to maintain and
  68  * write. Now they are all implemented with either: IMPLEMENT_PEM_rw(...) or
  69  * IMPLEMENT_PEM_rw_cb(...)
  70  */
  71
  72 # define PEM_read_cb_fnsig(name, type, INTYPE, readname)                \
  73     type *PEM_##readname##_##name(INTYPE *out, type **x,                \
  74                                  pem_password_cb *cb, void *u)
  75 # define PEM_read_cb_ex_fnsig(name, type, INTYPE, readname)             \
  76     type *PEM_##readname##_##name##_ex(INTYPE *out, type **x,           \
  77                                        pem_password_cb *cb, void *u,    \
  78                                        OSSL_LIB_CTX *libctx,            \
  79                                        const char *propq)
  80
  81 # define PEM_write_fnsig(name, type, OUTTYPE, writename)                \
  82     int PEM_##writename##_##name(OUTTYPE *out, const type *x)
  83 # define PEM_write_cb_fnsig(name, type, OUTTYPE, writename)             \
  84     int PEM_##writename##_##name(OUTTYPE *out, const type *x,           \
  85                                  const EVP_CIPHER *enc,                 \
  86                                  const unsigned char *kstr, int klen,   \
  87                                  pem_password_cb *cb, void *u)
  88 # define PEM_write_ex_fnsig(name, type, OUTTYPE, writename)             \
  89     int PEM_##writename##_##name##_ex(OUTTYPE *out, const type *x,      \
  90                                       OSSL_LIB_CTX *libctx,             \
  91                                       const char *propq)
  92 # define PEM_write_cb_ex_fnsig(name, type, OUTTYPE, writename)          \
  93     int PEM_##writename##_##name##_ex(OUTTYPE *out, const type *x,      \
  94                                       const EVP_CIPHER *enc,            \
  95                                       const unsigned char *kstr, int klen, \
  96                                       pem_password_cb *cb, void *u,     \
  97                                       OSSL_LIB_CTX *libctx,             \
  98                                       const char *propq)
  99
 100 # ifdef OPENSSL_NO_STDIO
 101
 102 #  define IMPLEMENT_PEM_read_fp(name, type, str, asn1) /**/
 103 #  define IMPLEMENT_PEM_write_fp(name, type, str, asn1) /**/
 104 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 105 #   define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1) /**/
 106 #  endif
 107 #  define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1) /**/
 108 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 109 #   define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1) /**/
 110 #  endif
 111 # else
 112
 113 #  define IMPLEMENT_PEM_read_fp(name, type, str, asn1)                  \
 114     type *PEM_read_##name(FILE *fp, type **x, pem_password_cb *cb, void *u) \
 115     {                                                                   \
 116         return PEM_ASN1_read((d2i_of_void *)d2i_##asn1, str, fp,        \
 117                              (void **)x, cb, u);                        \
 118     }
 119
 120 #  define IMPLEMENT_PEM_write_fp(name, type, str, asn1)                 \
 121     PEM_write_fnsig(name, type, FILE, write)                            \
 122     {                                                                   \
 123         return PEM_ASN1_write((i2d_of_void *)i2d_##asn1, str, out,      \
 124                               x, NULL, NULL, 0, NULL, NULL);            \
 125     }
 126
 127 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 128 #   define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)  \
 129     IMPLEMENT_PEM_write_fp(name, type, str, asn1)
 130 #  endif
 131
 132 #  define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)              \
 133     PEM_write_cb_fnsig(name, type, FILE, write)                         \
 134     {                                                                   \
 135         return PEM_ASN1_write((i2d_of_void *)i2d_##asn1, str, out,      \
 136                               x, enc, kstr, klen, cb, u);               \
 137     }
 138
 139 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 140 #   define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)       \
 141     IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
 142 #  endif
 143 # endif
 144
 145 # define IMPLEMENT_PEM_read_bio(name, type, str, asn1)                  \
 146     type *PEM_read_bio_##name(BIO *bp, type **x,                        \
 147                               pem_password_cb *cb, void *u)             \
 148     {                                                                   \
 149         return PEM_ASN1_read_bio((d2i_of_void *)d2i_##asn1, str, bp,    \
 150                                  (void **)x, cb, u);                    \
 151     }
 152
 153 # define IMPLEMENT_PEM_write_bio(name, type, str, asn1)                 \
 154     PEM_write_fnsig(name, type, BIO, write_bio)                         \
 155     {                                                                   \
 156         return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1, str, out,  \
 157                                   x, NULL,NULL,0,NULL,NULL);            \
 158     }
 159
 160 # ifndef OPENSSL_NO_DEPRECATED_3_0
 161 #  define IMPLEMENT_PEM_write_bio_const(name, type, str, asn1)   \
 162     IMPLEMENT_PEM_write_bio(name, type, str, asn1)
 163 # endif
 164
 165 # define IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)              \
 166     PEM_write_cb_fnsig(name, type, BIO, write_bio)                      \
 167     {                                                                   \
 168         return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1, str, out,  \
 169                                   x, enc, kstr, klen, cb, u);           \
 170     }
 171
 172 # ifndef OPENSSL_NO_DEPRECATED_3_0
 173 #  define IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1)  \
 174     IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)
 175 # endif
 176
 177 # define IMPLEMENT_PEM_write(name, type, str, asn1) \
 178         IMPLEMENT_PEM_write_bio(name, type, str, asn1) \
 179         IMPLEMENT_PEM_write_fp(name, type, str, asn1)
 180
 181 # ifndef OPENSSL_NO_DEPRECATED_3_0
 182 #  define IMPLEMENT_PEM_write_const(name, type, str, asn1) \
 183         IMPLEMENT_PEM_write_bio_const(name, type, str, asn1) \
 184         IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)
 185 # endif
 186
 187 # define IMPLEMENT_PEM_write_cb(name, type, str, asn1) \
 188         IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1) \
 189         IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
 190
 191 # ifndef OPENSSL_NO_DEPRECATED_3_0
 192 #  define IMPLEMENT_PEM_write_cb_const(name, type, str, asn1) \
 193         IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1) \
 194         IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)
 195 # endif
 196
 197 # define IMPLEMENT_PEM_read(name, type, str, asn1) \
 198         IMPLEMENT_PEM_read_bio(name, type, str, asn1) \
 199         IMPLEMENT_PEM_read_fp(name, type, str, asn1)
 200
 201 # define IMPLEMENT_PEM_rw(name, type, str, asn1) \
 202         IMPLEMENT_PEM_read(name, type, str, asn1) \
 203         IMPLEMENT_PEM_write(name, type, str, asn1)
 204
 205 # ifndef OPENSSL_NO_DEPRECATED_3_0
 206 #  define IMPLEMENT_PEM_rw_const(name, type, str, asn1) \
 207         IMPLEMENT_PEM_read(name, type, str, asn1) \
 208         IMPLEMENT_PEM_write_const(name, type, str, asn1)
 209 # endif
 210
 211 # define IMPLEMENT_PEM_rw_cb(name, type, str, asn1) \
 212         IMPLEMENT_PEM_read(name, type, str, asn1) \
 213         IMPLEMENT_PEM_write_cb(name, type, str, asn1)
 214
 215 /* These are the same except they are for the declarations */
 216
 217 /*
 218  * The mysterious 'extern' that's passed to some macros is innocuous,
 219  * and is there to quiet pre-C99 compilers that may complain about empty
 220  * arguments in macro calls.
 221  */
 222 # if defined(OPENSSL_NO_STDIO)
 223
 224 #  define DECLARE_PEM_read_fp_attr(attr, name, type) /**/
 225 #  define DECLARE_PEM_read_fp_ex_attr(attr, name, type) /**/
 226 #  define DECLARE_PEM_write_fp_attr(attr, name, type) /**/
 227 #  define DECLARE_PEM_write_fp_ex_attr(attr, name, type) /**/
 228 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 229 #   define DECLARE_PEM_write_fp_const_attr(attr, name, type) /**/
 230 #  endif
 231 #  define DECLARE_PEM_write_cb_fp_attr(attr, name, type) /**/
 232 #  define DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type) /**/
 233
 234 # else
 235
 236 #  define DECLARE_PEM_read_fp_attr(attr, name, type)                        \
 237     attr PEM_read_cb_fnsig(name, type, FILE, read);
 238 #  define DECLARE_PEM_read_fp_ex_attr(attr, name, type)                     \
 239     attr PEM_read_cb_fnsig(name, type, FILE, read);                         \
 240     attr PEM_read_cb_ex_fnsig(name, type, FILE, read);
 241
 242 #  define DECLARE_PEM_write_fp_attr(attr, name, type)                       \
 243     attr PEM_write_fnsig(name, type, FILE, write);
 244 #  define DECLARE_PEM_write_fp_ex_attr(attr, name, type)                    \
 245     attr PEM_write_fnsig(name, type, FILE, write);                          \
 246     attr PEM_write_ex_fnsig(name, type, FILE, write);
 247 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 248 #   define DECLARE_PEM_write_fp_const_attr(attr, name, type)                \
 249     attr PEM_write_fnsig(name, type, FILE, write);
 250 #  endif
 251 #  define DECLARE_PEM_write_cb_fp_attr(attr, name, type)                    \
 252     attr PEM_write_cb_fnsig(name, type, FILE, write);
 253 #  define DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type)                 \
 254     attr PEM_write_cb_fnsig(name, type, FILE, write);                       \
 255     attr PEM_write_cb_ex_fnsig(name, type, FILE, write);
 256
 257 # endif
 258
 259 # define DECLARE_PEM_read_fp(name, type)                                    \
 260     DECLARE_PEM_read_fp_attr(extern, name, type)
 261 # define DECLARE_PEM_write_fp(name, type)                                   \
 262     DECLARE_PEM_write_fp_attr(extern, name, type)
 263 # ifndef OPENSSL_NO_DEPRECATED_3_0
 264 #   define DECLARE_PEM_write_fp_const(name, type)                           \
 265     DECLARE_PEM_write_fp_const_attr(extern, name, type)
 266 # endif
 267 # define DECLARE_PEM_write_cb_fp(name, type)                                \
 268     DECLARE_PEM_write_cb_fp_attr(extern, name, type)
 269
 270 #  define DECLARE_PEM_read_bio_attr(attr, name, type)                       \
 271     attr PEM_read_cb_fnsig(name, type, BIO, read_bio);
 272 #  define DECLARE_PEM_read_bio_ex_attr(attr, name, type)                    \
 273     attr PEM_read_cb_fnsig(name, type, BIO, read_bio);                      \
 274     attr PEM_read_cb_ex_fnsig(name, type, BIO, read_bio);
 275 # define DECLARE_PEM_read_bio(name, type)                                   \
 276     DECLARE_PEM_read_bio_attr(extern, name, type)
 277 # define DECLARE_PEM_read_bio_ex(name, type)                                \
 278     DECLARE_PEM_read_bio_ex_attr(extern, name, type)
 279
 280 # define DECLARE_PEM_write_bio_attr(attr, name, type)                       \
 281     attr PEM_write_fnsig(name, type, BIO, write_bio);
 282 # define DECLARE_PEM_write_bio_ex_attr(attr, name, type)                    \
 283     attr PEM_write_fnsig(name, type, BIO, write_bio);                       \
 284     attr PEM_write_ex_fnsig(name, type, BIO, write_bio);
 285 # define DECLARE_PEM_write_bio(name, type)                                  \
 286     DECLARE_PEM_write_bio_attr(extern, name, type)
 287 # define DECLARE_PEM_write_bio_ex(name, type)                               \
 288     DECLARE_PEM_write_bio_ex_attr(extern, name, type)
 289
 290 # ifndef OPENSSL_NO_DEPRECATED_3_0
 291 #  define DECLARE_PEM_write_bio_const_attr(attr, name, type)                \
 292     attr PEM_write_fnsig(name, type, BIO, write_bio);
 293 #  define DECLARE_PEM_write_bio_const(name, type)      \
 294     DECLARE_PEM_write_bio_const_attr(extern, name, type)
 295 # endif
 296
 297 # define DECLARE_PEM_write_cb_bio_attr(attr, name, type)                    \
 298     attr PEM_write_cb_fnsig(name, type, BIO, write_bio);
 299 # define DECLARE_PEM_write_cb_bio_ex_attr(attr, name, type)                 \
 300     attr PEM_write_cb_fnsig(name, type, BIO, write_bio);                    \
 301     attr PEM_write_cb_ex_fnsig(name, type, BIO, write_bio);
 302 # define DECLARE_PEM_write_cb_bio(name, type)                               \
 303     DECLARE_PEM_write_cb_bio_attr(extern, name, type)
 304 # define DECLARE_PEM_write_cb_ex_bio(name, type)                            \
 305     DECLARE_PEM_write_cb_bio_ex_attr(extern, name, type)
 306
 307 # define DECLARE_PEM_write_attr(attr, name, type)                           \
 308     DECLARE_PEM_write_bio_attr(attr, name, type)                            \
 309     DECLARE_PEM_write_fp_attr(attr, name, type)
 310 # define DECLARE_PEM_write_ex_attr(attr, name, type)                        \
 311     DECLARE_PEM_write_bio_ex_attr(attr, name, type)                         \
 312     DECLARE_PEM_write_fp_ex_attr(attr, name, type)
 313 # define DECLARE_PEM_write(name, type) \
 314     DECLARE_PEM_write_attr(extern, name, type)
 315 # define DECLARE_PEM_write_ex(name, type) \
 316     DECLARE_PEM_write_ex_attr(extern, name, type)
 317 # ifndef OPENSSL_NO_DEPRECATED_3_0
 318 #  define DECLARE_PEM_write_const_attr(attr, name, type)                    \
 319     DECLARE_PEM_write_bio_const_attr(attr, name, type)                      \
 320     DECLARE_PEM_write_fp_const_attr(attr, name, type)
 321 #  define DECLARE_PEM_write_const(name, type)                               \
 322     DECLARE_PEM_write_const_attr(extern, name, type)
 323 # endif
 324 # define DECLARE_PEM_write_cb_attr(attr, name, type)                        \
 325     DECLARE_PEM_write_cb_bio_attr(attr, name, type)                         \
 326     DECLARE_PEM_write_cb_fp_attr(attr, name, type)
 327 # define DECLARE_PEM_write_cb_ex_attr(attr, name, type)                     \
 328     DECLARE_PEM_write_cb_bio_ex_attr(attr, name, type)                      \
 329     DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type)
 330 # define DECLARE_PEM_write_cb(name, type)                                   \
 331     DECLARE_PEM_write_cb_attr(extern, name, type)
 332 # define DECLARE_PEM_write_cb_ex(name, type)                                \
 333     DECLARE_PEM_write_cb_ex_attr(extern, name, type)
 334 # define DECLARE_PEM_read_attr(attr, name, type)                            \
 335     DECLARE_PEM_read_bio_attr(attr, name, type)                             \
 336     DECLARE_PEM_read_fp_attr(attr, name, type)
 337 # define DECLARE_PEM_read_ex_attr(attr, name, type)                         \
 338     DECLARE_PEM_read_bio_ex_attr(attr, name, type)                          \
 339     DECLARE_PEM_read_fp_ex_attr(attr, name, type)
 340 # define DECLARE_PEM_read(name, type)                                       \
 341     DECLARE_PEM_read_attr(extern, name, type)
 342 # define DECLARE_PEM_read_ex(name, type)                                    \
 343     DECLARE_PEM_read_ex_attr(extern, name, type)
 344 # define DECLARE_PEM_rw_attr(attr, name, type)                              \
 345     DECLARE_PEM_read_attr(attr, name, type)                                 \
 346     DECLARE_PEM_write_attr(attr, name, type)
 347 # define DECLARE_PEM_rw_ex_attr(attr, name, type)                           \
 348     DECLARE_PEM_read_ex_attr(attr, name, type)                              \
 349     DECLARE_PEM_write_ex_attr(attr, name, type)
 350 # define DECLARE_PEM_rw(name, type) \
 351     DECLARE_PEM_rw_attr(extern, name, type)
 352 # define DECLARE_PEM_rw_ex(name, type) \
 353     DECLARE_PEM_rw_ex_attr(extern, name, type)
 354 # ifndef OPENSSL_NO_DEPRECATED_3_0
 355 #  define DECLARE_PEM_rw_const_attr(attr, name, type)                       \
 356     DECLARE_PEM_read_attr(attr, name, type)                                 \
 357     DECLARE_PEM_write_const_attr(attr, name, type)
 358 #  define DECLARE_PEM_rw_const(name, type) \
 359     DECLARE_PEM_rw_const_attr(extern, name, type)
 360 # endif
 361 # define DECLARE_PEM_rw_cb_attr(attr, name, type)                           \
 362     DECLARE_PEM_read_attr(attr, name, type)                                 \
 363     DECLARE_PEM_write_cb_attr(attr, name, type)
 364 # define DECLARE_PEM_rw_cb_ex_attr(attr, name, type)                        \
 365     DECLARE_PEM_read_ex_attr(attr, name, type)                              \
 366     DECLARE_PEM_write_cb_ex_attr(attr, name, type)
 367 # define DECLARE_PEM_rw_cb(name, type) \
 368     DECLARE_PEM_rw_cb_attr(extern, name, type)
 369 # define DECLARE_PEM_rw_cb_ex(name, type) \
 370     DECLARE_PEM_rw_cb_ex_attr(extern, name, type)
 371
 372 int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher);
 373 int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *len,
 374                   pem_password_cb *callback, void *u);
 375
 376 int PEM_read_bio(BIO *bp, char **name, char **header,
 377                  unsigned char **data, long *len);
 378 #   define PEM_FLAG_SECURE             0x1
 379 #   define PEM_FLAG_EAY_COMPATIBLE     0x2
 380 #   define PEM_FLAG_ONLY_B64           0x4
 381 int PEM_read_bio_ex(BIO *bp, char **name, char **header,
 382                     unsigned char **data, long *len, unsigned int flags);
 383 int PEM_bytes_read_bio_secmem(unsigned char **pdata, long *plen, char **pnm,
 384                               const char *name, BIO *bp, pem_password_cb *cb,
 385                               void *u);
 386 int PEM_write_bio(BIO *bp, const char *name, const char *hdr,
 387                   const unsigned char *data, long len);
 388 int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm,
 389                        const char *name, BIO *bp, pem_password_cb *cb,
 390                        void *u);
 391 void *PEM_ASN1_read_bio(d2i_of_void *d2i, const char *name, BIO *bp, void **x,
 392                         pem_password_cb *cb, void *u);
 393 int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp,
 394                        const void *x, const EVP_CIPHER *enc,
 395                        const unsigned char *kstr, int klen,
 396                        pem_password_cb *cb, void *u);
 397
 398 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
 399                                             pem_password_cb *cb, void *u);
 400 STACK_OF(X509_INFO)
 401 *PEM_X509_INFO_read_bio_ex(BIO *bp, STACK_OF(X509_INFO) *sk,
 402                            pem_password_cb *cb, void *u, OSSL_LIB_CTX *libctx,
 403                            const char *propq);
 404
 405 int PEM_X509_INFO_write_bio(BIO *bp, const X509_INFO *xi, EVP_CIPHER *enc,
 406                             const unsigned char *kstr, int klen,
 407                             pem_password_cb *cd, void *u);
 408
 409 #ifndef OPENSSL_NO_STDIO
 410 int PEM_read(FILE *fp, char **name, char **header,
 411              unsigned char **data, long *len);
 412 int PEM_write(FILE *fp, const char *name, const char *hdr,
 413               const unsigned char *data, long len);
 414 void *PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp, void **x,
 415                     pem_password_cb *cb, void *u);
 416 int PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp,
 417                    const void *x, const EVP_CIPHER *enc,
 418                    const unsigned char *kstr, int klen,
 419                    pem_password_cb *callback, void *u);
 420 STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
 421                                         pem_password_cb *cb, void *u);
 422 STACK_OF(X509_INFO)
 423 *PEM_X509_INFO_read_ex(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb,
 424                        void *u, OSSL_LIB_CTX *libctx, const char *propq);
 425 #endif
 426
 427 int PEM_SignInit(EVP_MD_CTX *ctx, EVP_MD *type);
 428 int PEM_SignUpdate(EVP_MD_CTX *ctx, const unsigned char *d, unsigned int cnt);
 429 int PEM_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
 430                   unsigned int *siglen, EVP_PKEY *pkey);
 431
 432 /* The default pem_password_cb that's used internally */
 433 int PEM_def_callback(char *buf, int num, int rwflag, void *userdata);
 434 void PEM_proc_type(char *buf, int type);
 435 void PEM_dek_info(char *buf, const char *type, int len, const char *str);
 436
 437 # include <openssl/symhacks.h>
 438
 439 DECLARE_PEM_rw(X509, X509)
 440 DECLARE_PEM_rw(X509_AUX, X509)
 441 DECLARE_PEM_rw(X509_REQ, X509_REQ)
 442 DECLARE_PEM_write(X509_REQ_NEW, X509_REQ)
 443 DECLARE_PEM_rw(X509_CRL, X509_CRL)
 444 DECLARE_PEM_rw(X509_PUBKEY, X509_PUBKEY)
 445 DECLARE_PEM_rw(PKCS7, PKCS7)
 446 DECLARE_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE)
 447 DECLARE_PEM_rw(PKCS8, X509_SIG)
 448 DECLARE_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
 449 # ifndef OPENSSL_NO_DEPRECATED_3_0
 450 DECLARE_PEM_rw_cb_attr(OSSL_DEPRECATEDIN_3_0, RSAPrivateKey, RSA)
 451 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, RSAPublicKey, RSA)
 452 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, RSA_PUBKEY, RSA)
 453 # endif
 454 # ifndef OPENSSL_NO_DEPRECATED_3_0
 455 #  ifndef OPENSSL_NO_DSA
 456 DECLARE_PEM_rw_cb_attr(OSSL_DEPRECATEDIN_3_0, DSAPrivateKey, DSA)
 457 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DSA_PUBKEY, DSA)
 458 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DSAparams, DSA)
 459 #  endif
 460 # endif
 461
 462 # ifndef OPENSSL_NO_DEPRECATED_3_0
 463 #  ifndef OPENSSL_NO_EC
 464 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, ECPKParameters, EC_GROUP)
 465 DECLARE_PEM_rw_cb_attr(OSSL_DEPRECATEDIN_3_0, ECPrivateKey, EC_KEY)
 466 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, EC_PUBKEY, EC_KEY)
 467 #  endif
 468 # endif
 469
 470 # ifndef OPENSSL_NO_DH
 471 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 472 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DHparams, DH)
 473 DECLARE_PEM_write_attr(OSSL_DEPRECATEDIN_3_0, DHxparams, DH)
 474 #  endif
 475 # endif
 476 DECLARE_PEM_rw_cb_ex(PrivateKey, EVP_PKEY)
 477 DECLARE_PEM_rw_ex(PUBKEY, EVP_PKEY)
 478
 479 int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
 480                                          const EVP_CIPHER *enc,
 481                                          const unsigned char *kstr, int klen,
 482                                          pem_password_cb *cb, void *u);
 483
 484 /* Why do these take a signed char *kstr? */
 485 int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, const EVP_PKEY *x, int nid,
 486                                       const char *kstr, int klen,
 487                                       pem_password_cb *cb, void *u);
 488 int PEM_write_bio_PKCS8PrivateKey(BIO *, const EVP_PKEY *, const EVP_CIPHER *,
 489                                   const char *kstr, int klen,
 490                                   pem_password_cb *cb, void *u);
 491 int i2d_PKCS8PrivateKey_bio(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 492                             const char *kstr, int klen,
 493                             pem_password_cb *cb, void *u);
 494 int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, const EVP_PKEY *x, int nid,
 495                                 const char *kstr, int klen,
 496                                 pem_password_cb *cb, void *u);
 497 EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
 498                                   void *u);
 499
 500 # ifndef OPENSSL_NO_STDIO
 501 int i2d_PKCS8PrivateKey_fp(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 502                            const char *kstr, int klen,
 503                            pem_password_cb *cb, void *u);
 504 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, const EVP_PKEY *x, int nid,
 505                                const char *kstr, int klen,
 506                                pem_password_cb *cb, void *u);
 507 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, const EVP_PKEY *x, int nid,
 508                                   const char *kstr, int klen,
 509                                   pem_password_cb *cb, void *u);
 510
 511 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
 512                                  void *u);
 513
 514 int PEM_write_PKCS8PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 515                               const char *kstr, int klen,
 516                               pem_password_cb *cd, void *u);
 517 # endif
 518 EVP_PKEY *PEM_read_bio_Parameters_ex(BIO *bp, EVP_PKEY **x,
 519                                      OSSL_LIB_CTX *libctx, const char *propq);
 520 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x);
 521 int PEM_write_bio_Parameters(BIO *bp, const EVP_PKEY *x);
 522
 523 EVP_PKEY *b2i_PrivateKey(const unsigned char **in, long length);
 524 EVP_PKEY *b2i_PublicKey(const unsigned char **in, long length);
 525 EVP_PKEY *b2i_PrivateKey_bio(BIO *in);
 526 EVP_PKEY *b2i_PublicKey_bio(BIO *in);
 527 int i2b_PrivateKey_bio(BIO *out, const EVP_PKEY *pk);
 528 int i2b_PublicKey_bio(BIO *out, const EVP_PKEY *pk);
 529 EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u);
 530 EVP_PKEY *b2i_PVK_bio_ex(BIO *in, pem_password_cb *cb, void *u,
 531                          OSSL_LIB_CTX *libctx, const char *propq);
 532 int i2b_PVK_bio(BIO *out, const EVP_PKEY *pk, int enclevel,
 533                 pem_password_cb *cb, void *u);
 534 int i2b_PVK_bio_ex(BIO *out, const EVP_PKEY *pk, int enclevel,
 535                    pem_password_cb *cb, void *u,
 536                    OSSL_LIB_CTX *libctx, const char *propq);
 537
 538 # ifdef  __cplusplus
 539 }
 540 # endif
 541 #endif