include/openssl/pem.h

   1 /*
   2  * Copyright 1995-2020 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
  26 #ifdef  __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 # define PEM_BUFSIZE             1024
  31
  32 # define PEM_STRING_X509_OLD     "X509 CERTIFICATE"
  33 # define PEM_STRING_X509         "CERTIFICATE"
  34 # define PEM_STRING_X509_TRUSTED "TRUSTED CERTIFICATE"
  35 # define PEM_STRING_X509_REQ_OLD "NEW CERTIFICATE REQUEST"
  36 # define PEM_STRING_X509_REQ     "CERTIFICATE REQUEST"
  37 # define PEM_STRING_X509_CRL     "X509 CRL"
  38 # define PEM_STRING_EVP_PKEY     "ANY PRIVATE KEY"
  39 # define PEM_STRING_PUBLIC       "PUBLIC KEY"
  40 # define PEM_STRING_RSA          "RSA PRIVATE KEY"
  41 # define PEM_STRING_RSA_PUBLIC   "RSA PUBLIC KEY"
  42 # define PEM_STRING_DSA          "DSA PRIVATE KEY"
  43 # define PEM_STRING_DSA_PUBLIC   "DSA PUBLIC KEY"
  44 # define PEM_STRING_PKCS7        "PKCS7"
  45 # define PEM_STRING_PKCS7_SIGNED "PKCS #7 SIGNED DATA"
  46 # define PEM_STRING_PKCS8        "ENCRYPTED PRIVATE KEY"
  47 # define PEM_STRING_PKCS8INF     "PRIVATE KEY"
  48 # define PEM_STRING_DHPARAMS     "DH PARAMETERS"
  49 # define PEM_STRING_DHXPARAMS    "X9.42 DH PARAMETERS"
  50 # define PEM_STRING_SSL_SESSION  "SSL SESSION PARAMETERS"
  51 # define PEM_STRING_DSAPARAMS    "DSA PARAMETERS"
  52 # define PEM_STRING_ECDSA_PUBLIC "ECDSA PUBLIC KEY"
  53 # define PEM_STRING_ECPARAMETERS "EC PARAMETERS"
  54 # define PEM_STRING_ECPRIVATEKEY "EC PRIVATE KEY"
  55 # define PEM_STRING_PARAMETERS   "PARAMETERS"
  56 # define PEM_STRING_CMS          "CMS"
  57
  58 # define PEM_TYPE_ENCRYPTED      10
  59 # define PEM_TYPE_MIC_ONLY       20
  60 # define PEM_TYPE_MIC_CLEAR      30
  61 # define PEM_TYPE_CLEAR          40
  62
  63 /*
  64  * These macros make the PEM_read/PEM_write functions easier to maintain and
  65  * write. Now they are all implemented with either: IMPLEMENT_PEM_rw(...) or
  66  * IMPLEMENT_PEM_rw_cb(...)
  67  */
  68
  69 # define PEM_read_cb_fnsig(name, type, INTYPE, readname)                \
  70     type *PEM_##readname##_##name(INTYPE *out, type **x,                \
  71                                  pem_password_cb *cb, void *u)
  72 # define PEM_read_cb_ex_fnsig(name, type, INTYPE, readname)             \
  73     type *PEM_##readname##_##name##_ex(INTYPE *out, type **x,           \
  74                                        pem_password_cb *cb, void *u,    \
  75                                        OSSL_LIB_CTX *libctx,            \
  76                                        const char *propq)
  77
  78 # define PEM_write_fnsig(name, type, OUTTYPE, writename)                \
  79     int PEM_##writename##_##name(OUTTYPE *out, const type *x)
  80 # define PEM_write_cb_fnsig(name, type, OUTTYPE, writename)             \
  81     int PEM_##writename##_##name(OUTTYPE *out, const type *x,           \
  82                                  const EVP_CIPHER *enc,                 \
  83                                  const unsigned char *kstr, int klen,   \
  84                                  pem_password_cb *cb, void *u)
  85 # define PEM_write_ex_fnsig(name, type, OUTTYPE, writename)             \
  86     int PEM_##writename##_##name##_ex(OUTTYPE *out, const type *x,      \
  87                                       OSSL_LIB_CTX *libctx,             \
  88                                       const char *propq)
  89 # define PEM_write_cb_ex_fnsig(name, type, OUTTYPE, writename)          \
  90     int PEM_##writename##_##name##_ex(OUTTYPE *out, const type *x,      \
  91                                       const EVP_CIPHER *enc,            \
  92                                       const unsigned char *kstr, int klen, \
  93                                       pem_password_cb *cb, void *u,     \
  94                                       OSSL_LIB_CTX *libctx,             \
  95                                       const char *propq)
  96
  97 # ifdef OPENSSL_NO_STDIO
  98
  99 #  define IMPLEMENT_PEM_read_fp(name, type, str, asn1) /**/
 100 #  define IMPLEMENT_PEM_write_fp(name, type, str, asn1) /**/
 101 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 102 #   define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1) /**/
 103 #  endif
 104 #  define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1) /**/
 105 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 106 #   define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1) /**/
 107 #  endif
 108 # else
 109
 110 #  define IMPLEMENT_PEM_read_fp(name, type, str, asn1)                  \
 111     type *PEM_read_##name(FILE *fp, type **x, pem_password_cb *cb, void *u) \
 112     {                                                                   \
 113         return PEM_ASN1_read((d2i_of_void *)d2i_##asn1, str, fp,        \
 114                              (void **)x, cb, u);                        \
 115     }
 116
 117 #  define IMPLEMENT_PEM_write_fp(name, type, str, asn1)                 \
 118     PEM_write_fnsig(name, type, FILE, write)                            \
 119     {                                                                   \
 120         return PEM_ASN1_write((i2d_of_void *)i2d_##asn1, str, out,      \
 121                               x, NULL, NULL, 0, NULL, NULL);            \
 122     }
 123
 124 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 125 #   define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)  \
 126     IMPLEMENT_PEM_write_fp(name, type, str, asn1)
 127 #  endif
 128
 129 #  define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)              \
 130     PEM_write_cb_fnsig(name, type, FILE, write)                         \
 131     {                                                                   \
 132         return PEM_ASN1_write((i2d_of_void *)i2d_##asn1, str, out,      \
 133                               x, enc, kstr, klen, cb, u);               \
 134     }
 135
 136 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 137 #   define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)       \
 138     IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
 139 #  endif
 140 # endif
 141
 142 # define IMPLEMENT_PEM_read_bio(name, type, str, asn1)                  \
 143     type *PEM_read_bio_##name(BIO *bp, type **x,                        \
 144                               pem_password_cb *cb, void *u)             \
 145     {                                                                   \
 146         return PEM_ASN1_read_bio((d2i_of_void *)d2i_##asn1, str, bp,    \
 147                                  (void **)x, cb, u);                    \
 148     }
 149
 150 # define IMPLEMENT_PEM_write_bio(name, type, str, asn1)                 \
 151     PEM_write_fnsig(name, type, BIO, write_bio)                         \
 152     {                                                                   \
 153         return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1, str, out,  \
 154                                   x, NULL,NULL,0,NULL,NULL);            \
 155     }
 156
 157 # ifndef OPENSSL_NO_DEPRECATED_3_0
 158 #  define IMPLEMENT_PEM_write_bio_const(name, type, str, asn1)   \
 159     IMPLEMENT_PEM_write_bio(name, type, str, asn1)
 160 # endif
 161
 162 # define IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)              \
 163     PEM_write_cb_fnsig(name, type, BIO, write_bio)                      \
 164     {                                                                   \
 165         return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1, str, out,  \
 166                                   x, enc, kstr, klen, cb, u);           \
 167     }
 168
 169 # ifndef OPENSSL_NO_DEPRECATED_3_0
 170 #  define IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1)  \
 171     IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)
 172 # endif
 173
 174 # define IMPLEMENT_PEM_write(name, type, str, asn1) \
 175         IMPLEMENT_PEM_write_bio(name, type, str, asn1) \
 176         IMPLEMENT_PEM_write_fp(name, type, str, asn1)
 177
 178 # ifndef OPENSSL_NO_DEPRECATED_3_0
 179 #  define IMPLEMENT_PEM_write_const(name, type, str, asn1) \
 180         IMPLEMENT_PEM_write_bio_const(name, type, str, asn1) \
 181         IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)
 182 # endif
 183
 184 # define IMPLEMENT_PEM_write_cb(name, type, str, asn1) \
 185         IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1) \
 186         IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
 187
 188 # ifndef OPENSSL_NO_DEPRECATED_3_0
 189 #  define IMPLEMENT_PEM_write_cb_const(name, type, str, asn1) \
 190         IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1) \
 191         IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)
 192 # endif
 193
 194 # define IMPLEMENT_PEM_read(name, type, str, asn1) \
 195         IMPLEMENT_PEM_read_bio(name, type, str, asn1) \
 196         IMPLEMENT_PEM_read_fp(name, type, str, asn1)
 197
 198 # define IMPLEMENT_PEM_rw(name, type, str, asn1) \
 199         IMPLEMENT_PEM_read(name, type, str, asn1) \
 200         IMPLEMENT_PEM_write(name, type, str, asn1)
 201
 202 # ifndef OPENSSL_NO_DEPRECATED_3_0
 203 #  define IMPLEMENT_PEM_rw_const(name, type, str, asn1) \
 204         IMPLEMENT_PEM_read(name, type, str, asn1) \
 205         IMPLEMENT_PEM_write_const(name, type, str, asn1)
 206 # endif
 207
 208 # define IMPLEMENT_PEM_rw_cb(name, type, str, asn1) \
 209         IMPLEMENT_PEM_read(name, type, str, asn1) \
 210         IMPLEMENT_PEM_write_cb(name, type, str, asn1)
 211
 212 /* These are the same except they are for the declarations */
 213
 214 /*
 215  * The mysterious 'extern' that's passed to some macros is innocuous,
 216  * and is there to quiet pre-C99 compilers that may complain about empty
 217  * arguments in macro calls.
 218  */
 219 # if defined(OPENSSL_NO_STDIO)
 220
 221 #  define DECLARE_PEM_read_fp_attr(attr, name, type) /**/
 222 #  define DECLARE_PEM_read_fp_ex_attr(attr, name, type) /**/
 223 #  define DECLARE_PEM_write_fp_attr(attr, name, type) /**/
 224 #  define DECLARE_PEM_write_fp_ex_attr(attr, name, type) /**/
 225 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 226 #   define DECLARE_PEM_write_fp_const_attr(attr, name, type) /**/
 227 #  endif
 228 #  define DECLARE_PEM_write_cb_fp_attr(attr, name, type) /**/
 229 #  define DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type) /**/
 230
 231 # else
 232
 233 #  define DECLARE_PEM_read_fp_attr(attr, name, type)                        \
 234     attr PEM_read_cb_fnsig(name, type, FILE, read);
 235 #  define DECLARE_PEM_read_fp_ex_attr(attr, name, type)                     \
 236     attr PEM_read_cb_fnsig(name, type, FILE, read);                         \
 237     attr PEM_read_cb_ex_fnsig(name, type, FILE, read);
 238
 239 #  define DECLARE_PEM_write_fp_attr(attr, name, type)                       \
 240     attr PEM_write_fnsig(name, type, FILE, write);
 241 #  define DECLARE_PEM_write_fp_ex_attr(attr, name, type)                    \
 242     attr PEM_write_fnsig(name, type, FILE, write);                          \
 243     attr PEM_write_ex_fnsig(name, type, FILE, write);
 244 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 245 #   define DECLARE_PEM_write_fp_const_attr(attr, name, type)                \
 246     attr PEM_write_fnsig(name, type, FILE, write);
 247 #  endif
 248 #  define DECLARE_PEM_write_cb_fp_attr(attr, name, type)                    \
 249     attr PEM_write_cb_fnsig(name, type, FILE, write);
 250 #  define DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type)                 \
 251     attr PEM_write_cb_fnsig(name, type, FILE, write);                       \
 252     attr PEM_write_cb_ex_fnsig(name, type, FILE, write);
 253
 254 # endif
 255
 256 # define DECLARE_PEM_read_fp(name, type)                                    \
 257     DECLARE_PEM_read_fp_attr(extern, name, type)
 258 # define DECLARE_PEM_write_fp(name, type)                                   \
 259     DECLARE_PEM_write_fp_attr(extern, name, type)
 260 # ifndef OPENSSL_NO_DEPRECATED_3_0
 261 #   define DECLARE_PEM_write_fp_const(name, type)                           \
 262     DECLARE_PEM_write_fp_const_attr(extern, name, type)
 263 # endif
 264 # define DECLARE_PEM_write_cb_fp(name, type)                                \
 265     DECLARE_PEM_write_cb_fp_attr(extern, name, type)
 266
 267 #  define DECLARE_PEM_read_bio_attr(attr, name, type)                       \
 268     attr PEM_read_cb_fnsig(name, type, BIO, read_bio);
 269 #  define DECLARE_PEM_read_bio_ex_attr(attr, name, type)                    \
 270     attr PEM_read_cb_fnsig(name, type, BIO, read_bio);                      \
 271     attr PEM_read_cb_ex_fnsig(name, type, BIO, read_bio);
 272 # define DECLARE_PEM_read_bio(name, type)                                   \
 273     DECLARE_PEM_read_bio_attr(extern, name, type)
 274 # define DECLARE_PEM_read_bio_ex(name, type)                                \
 275     DECLARE_PEM_read_bio_ex_attr(extern, name, type)
 276
 277 # define DECLARE_PEM_write_bio_attr(attr, name, type)                       \
 278     attr PEM_write_fnsig(name, type, BIO, write_bio);
 279 # define DECLARE_PEM_write_bio_ex_attr(attr, name, type)                    \
 280     attr PEM_write_fnsig(name, type, BIO, write_bio);                       \
 281     attr PEM_write_ex_fnsig(name, type, BIO, write_bio);
 282 # define DECLARE_PEM_write_bio(name, type)                                  \
 283     DECLARE_PEM_write_bio_attr(extern, name, type)
 284 # define DECLARE_PEM_write_bio_ex(name, type)                               \
 285     DECLARE_PEM_write_bio_ex_attr(extern, name, type)
 286
 287 # ifndef OPENSSL_NO_DEPRECATED_3_0
 288 #  define DECLARE_PEM_write_bio_const_attr(attr, name, type)                \
 289     attr PEM_write_fnsig(name, type, BIO, write_bio);
 290 #  define DECLARE_PEM_write_bio_const(name, type)      \
 291     DECLARE_PEM_write_bio_const_attr(extern, name, type)
 292 # endif
 293
 294 # define DECLARE_PEM_write_cb_bio_attr(attr, name, type)                    \
 295     attr PEM_write_cb_fnsig(name, type, BIO, write_bio);
 296 # define DECLARE_PEM_write_cb_bio_ex_attr(attr, name, type)                 \
 297     attr PEM_write_cb_fnsig(name, type, BIO, write_bio);                    \
 298     attr PEM_write_cb_ex_fnsig(name, type, BIO, write_bio);
 299 # define DECLARE_PEM_write_cb_bio(name, type)                               \
 300     DECLARE_PEM_write_cb_bio_attr(extern, name, type)
 301 # define DECLARE_PEM_write_cb_ex_bio(name, type)                            \
 302     DECLARE_PEM_write_cb_bio_ex_attr(extern, name, type)
 303
 304 # define DECLARE_PEM_write_attr(attr, name, type)                           \
 305     DECLARE_PEM_write_bio_attr(attr, name, type)                            \
 306     DECLARE_PEM_write_fp_attr(attr, name, type)
 307 # define DECLARE_PEM_write_ex_attr(attr, name, type)                        \
 308     DECLARE_PEM_write_bio_ex_attr(attr, name, type)                         \
 309     DECLARE_PEM_write_fp_ex_attr(attr, name, type)
 310 # define DECLARE_PEM_write(name, type) \
 311     DECLARE_PEM_write_attr(extern, name, type)
 312 # define DECLARE_PEM_write_ex(name, type) \
 313     DECLARE_PEM_write_ex_attr(extern, name, type)
 314 # ifndef OPENSSL_NO_DEPRECATED_3_0
 315 #  define DECLARE_PEM_write_const_attr(attr, name, type)                    \
 316     DECLARE_PEM_write_bio_const_attr(attr, name, type)                      \
 317     DECLARE_PEM_write_fp_const_attr(attr, name, type)
 318 #  define DECLARE_PEM_write_const(name, type)                               \
 319     DECLARE_PEM_write_const_attr(extern, name, type)
 320 # endif
 321 # define DECLARE_PEM_write_cb_attr(attr, name, type)                        \
 322     DECLARE_PEM_write_cb_bio_attr(attr, name, type)                         \
 323     DECLARE_PEM_write_cb_fp_attr(attr, name, type)
 324 # define DECLARE_PEM_write_cb_ex_attr(attr, name, type)                     \
 325     DECLARE_PEM_write_cb_bio_ex_attr(attr, name, type)                      \
 326     DECLARE_PEM_write_cb_fp_ex_attr(attr, name, type)
 327 # define DECLARE_PEM_write_cb(name, type)                                   \
 328     DECLARE_PEM_write_cb_attr(extern, name, type)
 329 # define DECLARE_PEM_write_cb_ex(name, type)                                \
 330     DECLARE_PEM_write_cb_ex_attr(extern, name, type)
 331 # define DECLARE_PEM_read_attr(attr, name, type)                            \
 332     DECLARE_PEM_read_bio_attr(attr, name, type)                             \
 333     DECLARE_PEM_read_fp_attr(attr, name, type)
 334 # define DECLARE_PEM_read_ex_attr(attr, name, type)                         \
 335     DECLARE_PEM_read_bio_ex_attr(attr, name, type)                          \
 336     DECLARE_PEM_read_fp_ex_attr(attr, name, type)
 337 # define DECLARE_PEM_read(name, type)                                       \
 338     DECLARE_PEM_read_attr(extern, name, type)
 339 # define DECLARE_PEM_read_ex(name, type)                                    \
 340     DECLARE_PEM_read_ex_attr(extern, name, type)
 341 # define DECLARE_PEM_rw_attr(attr, name, type)                              \
 342     DECLARE_PEM_read_attr(attr, name, type)                                 \
 343     DECLARE_PEM_write_attr(attr, name, type)
 344 # define DECLARE_PEM_rw_ex_attr(attr, name, type)                           \
 345     DECLARE_PEM_read_ex_attr(attr, name, type)                              \
 346     DECLARE_PEM_write_ex_attr(attr, name, type)
 347 # define DECLARE_PEM_rw(name, type) \
 348     DECLARE_PEM_rw_attr(extern, name, type)
 349 # define DECLARE_PEM_rw_ex(name, type) \
 350     DECLARE_PEM_rw_ex_attr(extern, name, type)
 351 # ifndef OPENSSL_NO_DEPRECATED_3_0
 352 #  define DECLARE_PEM_rw_const_attr(attr, name, type)                       \
 353     DECLARE_PEM_read_attr(attr, name, type)                                 \
 354     DECLARE_PEM_write_const_attr(attr, name, type)
 355 #  define DECLARE_PEM_rw_const(name, type) \
 356     DECLARE_PEM_rw_const_attr(extern, name, type)
 357 # endif
 358 # define DECLARE_PEM_rw_cb_attr(attr, name, type)                           \
 359     DECLARE_PEM_read_attr(attr, name, type)                                 \
 360     DECLARE_PEM_write_cb_attr(attr, name, type)
 361 # define DECLARE_PEM_rw_cb_ex_attr(attr, name, type)                        \
 362     DECLARE_PEM_read_ex_attr(attr, name, type)                              \
 363     DECLARE_PEM_write_cb_ex_attr(attr, name, type)
 364 # define DECLARE_PEM_rw_cb(name, type) \
 365     DECLARE_PEM_rw_cb_attr(extern, name, type)
 366 # define DECLARE_PEM_rw_cb_ex(name, type) \
 367     DECLARE_PEM_rw_cb_ex_attr(extern, name, type)
 368
 369 int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher);
 370 int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *len,
 371                   pem_password_cb *callback, void *u);
 372
 373 int PEM_read_bio(BIO *bp, char **name, char **header,
 374                  unsigned char **data, long *len);
 375 #   define PEM_FLAG_SECURE             0x1
 376 #   define PEM_FLAG_EAY_COMPATIBLE     0x2
 377 #   define PEM_FLAG_ONLY_B64           0x4
 378 int PEM_read_bio_ex(BIO *bp, char **name, char **header,
 379                     unsigned char **data, long *len, unsigned int flags);
 380 int PEM_bytes_read_bio_secmem(unsigned char **pdata, long *plen, char **pnm,
 381                               const char *name, BIO *bp, pem_password_cb *cb,
 382                               void *u);
 383 int PEM_write_bio(BIO *bp, const char *name, const char *hdr,
 384                   const unsigned char *data, long len);
 385 int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm,
 386                        const char *name, BIO *bp, pem_password_cb *cb,
 387                        void *u);
 388 void *PEM_ASN1_read_bio(d2i_of_void *d2i, const char *name, BIO *bp, void **x,
 389                         pem_password_cb *cb, void *u);
 390 int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp,
 391                        const void *x, const EVP_CIPHER *enc,
 392                        const unsigned char *kstr, int klen,
 393                        pem_password_cb *cb, void *u);
 394
 395 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
 396                                             pem_password_cb *cb, void *u);
 397 STACK_OF(X509_INFO)
 398 *PEM_X509_INFO_read_bio_ex(BIO *bp, STACK_OF(X509_INFO) *sk,
 399                            pem_password_cb *cb, void *u, OSSL_LIB_CTX *libctx,
 400                            const char *propq);
 401
 402 int PEM_X509_INFO_write_bio(BIO *bp, const X509_INFO *xi, EVP_CIPHER *enc,
 403                             const unsigned char *kstr, int klen,
 404                             pem_password_cb *cd, void *u);
 405
 406 #ifndef OPENSSL_NO_STDIO
 407 int PEM_read(FILE *fp, char **name, char **header,
 408              unsigned char **data, long *len);
 409 int PEM_write(FILE *fp, const char *name, const char *hdr,
 410               const unsigned char *data, long len);
 411 void *PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp, void **x,
 412                     pem_password_cb *cb, void *u);
 413 int PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp,
 414                    const void *x, const EVP_CIPHER *enc,
 415                    const unsigned char *kstr, int klen,
 416                    pem_password_cb *callback, void *u);
 417 STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
 418                                         pem_password_cb *cb, void *u);
 419 STACK_OF(X509_INFO)
 420 *PEM_X509_INFO_read_ex(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb,
 421                        void *u, OSSL_LIB_CTX *libctx, const char *propq);
 422 #endif
 423
 424 int PEM_SignInit(EVP_MD_CTX *ctx, EVP_MD *type);
 425 int PEM_SignUpdate(EVP_MD_CTX *ctx, const unsigned char *d, unsigned int cnt);
 426 int PEM_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
 427                   unsigned int *siglen, EVP_PKEY *pkey);
 428
 429 /* The default pem_password_cb that's used internally */
 430 int PEM_def_callback(char *buf, int num, int rwflag, void *userdata);
 431 void PEM_proc_type(char *buf, int type);
 432 void PEM_dek_info(char *buf, const char *type, int len, const char *str);
 433
 434 # include <openssl/symhacks.h>
 435
 436 DECLARE_PEM_rw(X509, X509)
 437 DECLARE_PEM_rw(X509_AUX, X509)
 438 DECLARE_PEM_rw(X509_REQ, X509_REQ)
 439 DECLARE_PEM_write(X509_REQ_NEW, X509_REQ)
 440 DECLARE_PEM_rw(X509_CRL, X509_CRL)
 441 DECLARE_PEM_rw(X509_PUBKEY, X509_PUBKEY)
 442 DECLARE_PEM_rw(PKCS7, PKCS7)
 443 DECLARE_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE)
 444 DECLARE_PEM_rw(PKCS8, X509_SIG)
 445 DECLARE_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
 446 # ifndef OPENSSL_NO_DEPRECATED_3_0
 447 DECLARE_PEM_rw_cb_attr(OSSL_DEPRECATEDIN_3_0, RSAPrivateKey, RSA)
 448 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, RSAPublicKey, RSA)
 449 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, RSA_PUBKEY, RSA)
 450 # endif
 451 # ifndef OPENSSL_NO_DEPRECATED_3_0
 452 #  ifndef OPENSSL_NO_DSA
 453 DECLARE_PEM_rw_cb_attr(OSSL_DEPRECATEDIN_3_0, DSAPrivateKey, DSA)
 454 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DSA_PUBKEY, DSA)
 455 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DSAparams, DSA)
 456 #  endif
 457 # endif
 458 # ifndef OPENSSL_NO_EC
 459 DECLARE_PEM_rw(ECPKParameters, EC_GROUP)
 460 DECLARE_PEM_rw_cb(ECPrivateKey, EC_KEY)
 461 DECLARE_PEM_rw(EC_PUBKEY, EC_KEY)
 462 # endif
 463 # ifndef OPENSSL_NO_DH
 464 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 465 DECLARE_PEM_rw_attr(OSSL_DEPRECATEDIN_3_0, DHparams, DH)
 466 DECLARE_PEM_write_attr(OSSL_DEPRECATEDIN_3_0, DHxparams, DH)
 467 #  endif
 468 # endif
 469 DECLARE_PEM_rw_cb_ex(PrivateKey, EVP_PKEY)
 470 DECLARE_PEM_rw_ex(PUBKEY, EVP_PKEY)
 471
 472 int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
 473                                          const EVP_CIPHER *enc,
 474                                          const unsigned char *kstr, int klen,
 475                                          pem_password_cb *cb, void *u);
 476
 477 /* Why do these take a signed char *kstr? */
 478 int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, const EVP_PKEY *x, int nid,
 479                                       const char *kstr, int klen,
 480                                       pem_password_cb *cb, void *u);
 481 int PEM_write_bio_PKCS8PrivateKey(BIO *, const EVP_PKEY *, const EVP_CIPHER *,
 482                                   const char *kstr, int klen,
 483                                   pem_password_cb *cb, void *u);
 484 int i2d_PKCS8PrivateKey_bio(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 485                             const char *kstr, int klen,
 486                             pem_password_cb *cb, void *u);
 487 int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, const EVP_PKEY *x, int nid,
 488                                 const char *kstr, int klen,
 489                                 pem_password_cb *cb, void *u);
 490 EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
 491                                   void *u);
 492
 493 # ifndef OPENSSL_NO_STDIO
 494 int i2d_PKCS8PrivateKey_fp(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 495                            const char *kstr, int klen,
 496                            pem_password_cb *cb, void *u);
 497 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, const EVP_PKEY *x, int nid,
 498                                const char *kstr, int klen,
 499                                pem_password_cb *cb, void *u);
 500 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, const EVP_PKEY *x, int nid,
 501                                   const char *kstr, int klen,
 502                                   pem_password_cb *cb, void *u);
 503
 504 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
 505                                  void *u);
 506
 507 int PEM_write_PKCS8PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 508                               const char *kstr, int klen,
 509                               pem_password_cb *cd, void *u);
 510 # endif
 511 EVP_PKEY *PEM_read_bio_Parameters_ex(BIO *bp, EVP_PKEY **x,
 512                                      OSSL_LIB_CTX *libctx, const char *propq);
 513 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x);
 514 int PEM_write_bio_Parameters(BIO *bp, const EVP_PKEY *x);
 515
 516 EVP_PKEY *b2i_PrivateKey(const unsigned char **in, long length);
 517 EVP_PKEY *b2i_PublicKey(const unsigned char **in, long length);
 518 EVP_PKEY *b2i_PrivateKey_bio(BIO *in);
 519 EVP_PKEY *b2i_PublicKey_bio(BIO *in);
 520 int i2b_PrivateKey_bio(BIO *out, const EVP_PKEY *pk);
 521 int i2b_PublicKey_bio(BIO *out, const EVP_PKEY *pk);
 522 EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u);
 523 int i2b_PVK_bio(BIO *out, const EVP_PKEY *pk, int enclevel,
 524                 pem_password_cb *cb, void *u);
 525
 526 # ifdef  __cplusplus
 527 }
 528 # endif
 529 #endif