include/openssl/pem.h

   1 /*
   2  * Copyright 1995-2018 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 # ifdef OPENSSL_NO_STDIO
  70
  71 #  define IMPLEMENT_PEM_read_fp(name, type, str, asn1) /**/
  72 #  define IMPLEMENT_PEM_write_fp(name, type, str, asn1) /**/
  73 #  ifndef OPENSSL_NO_DEPRECATED_3_0
  74 #   define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1) /**/
  75 #  endif
  76 #  define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1) /**/
  77 #  ifndef OPENSSL_NO_DEPRECATED_3_0
  78 #   define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1) /**/
  79 #  endif
  80 # else
  81
  82 #  define IMPLEMENT_PEM_read_fp(name, type, str, asn1)                  \
  83     type *PEM_read_##name(FILE *fp, type **x, pem_password_cb *cb, void *u) \
  84     {                                                                   \
  85         return PEM_ASN1_read((d2i_of_void *)d2i_##asn1, str, fp,        \
  86                              (void **)x, cb, u);                        \
  87     }
  88
  89 #  define IMPLEMENT_PEM_write_fp(name, type, str, asn1)                 \
  90     int PEM_write_##name(FILE *fp, const type *x)                       \
  91     {                                                                   \
  92         return PEM_ASN1_write((i2d_of_void *)i2d_##asn1, str, fp,       \
  93                               x, NULL, NULL, 0, NULL, NULL);            \
  94     }
  95
  96 #  ifndef OPENSSL_NO_DEPRECATED_3_0
  97 #   define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)  \
  98     IMPLEMENT_PEM_write_fp(name, type, str, asn1)
  99 #  endif
 100
 101 #  define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)              \
 102     int PEM_write_##name(FILE *fp, const type *x,                       \
 103                          const EVP_CIPHER *enc,                         \
 104                          const unsigned char *kstr, int klen,           \
 105                          pem_password_cb *cb, void *u)                  \
 106     {                                                                   \
 107         return PEM_ASN1_write((i2d_of_void *)i2d_##asn1, str, fp,       \
 108                               x, enc, kstr, klen, cb, u);               \
 109     }
 110
 111 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 112 #   define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)       \
 113     IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
 114 #  endif
 115 # endif
 116
 117 # define IMPLEMENT_PEM_read_bio(name, type, str, asn1)                  \
 118     type *PEM_read_bio_##name(BIO *bp, type **x,                        \
 119                               pem_password_cb *cb, void *u)             \
 120     {                                                                   \
 121         return PEM_ASN1_read_bio((d2i_of_void *)d2i_##asn1, str, bp,    \
 122                                  (void **)x, cb, u);                    \
 123     }
 124
 125 # define IMPLEMENT_PEM_write_bio(name, type, str, asn1)                 \
 126     int PEM_write_bio_##name(BIO *bp, const type *x)                    \
 127     {                                                                   \
 128         return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1, str, bp,   \
 129                                   x, NULL,NULL,0,NULL,NULL);            \
 130     }
 131
 132 # ifndef OPENSSL_NO_DEPRECATED_3_0
 133 #  define IMPLEMENT_PEM_write_bio_const(name, type, str, asn1)   \
 134     IMPLEMENT_PEM_write_bio(name, type, str, asn1)
 135 # endif
 136
 137 # define IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)              \
 138     int PEM_write_bio_##name(BIO *bp, const type *x,                    \
 139                              const EVP_CIPHER *enc,                     \
 140                              const unsigned char *kstr, int klen,       \
 141                              pem_password_cb *cb, void *u)              \
 142     {                                                                   \
 143         return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1, str, bp,   \
 144                                   x, enc, kstr, klen, cb, u);           \
 145     }
 146
 147 # ifndef OPENSSL_NO_DEPRECATED_3_0
 148 #  define IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1)  \
 149     IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1)
 150 # endif
 151
 152 # define IMPLEMENT_PEM_write(name, type, str, asn1) \
 153         IMPLEMENT_PEM_write_bio(name, type, str, asn1) \
 154         IMPLEMENT_PEM_write_fp(name, type, str, asn1)
 155
 156 # ifndef OPENSSL_NO_DEPRECATED_3_0
 157 #  define IMPLEMENT_PEM_write_const(name, type, str, asn1) \
 158         IMPLEMENT_PEM_write_bio_const(name, type, str, asn1) \
 159         IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)
 160 # endif
 161
 162 # define IMPLEMENT_PEM_write_cb(name, type, str, asn1) \
 163         IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1) \
 164         IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)
 165
 166 # ifndef OPENSSL_NO_DEPRECATED_3_0
 167 #  define IMPLEMENT_PEM_write_cb_const(name, type, str, asn1) \
 168         IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1) \
 169         IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)
 170 # endif
 171
 172 # define IMPLEMENT_PEM_read(name, type, str, asn1) \
 173         IMPLEMENT_PEM_read_bio(name, type, str, asn1) \
 174         IMPLEMENT_PEM_read_fp(name, type, str, asn1)
 175
 176 # define IMPLEMENT_PEM_rw(name, type, str, asn1) \
 177         IMPLEMENT_PEM_read(name, type, str, asn1) \
 178         IMPLEMENT_PEM_write(name, type, str, asn1)
 179
 180 # ifndef OPENSSL_NO_DEPRECATED_3_0
 181 #  define IMPLEMENT_PEM_rw_const(name, type, str, asn1) \
 182         IMPLEMENT_PEM_read(name, type, str, asn1) \
 183         IMPLEMENT_PEM_write_const(name, type, str, asn1)
 184 # endif
 185
 186 # define IMPLEMENT_PEM_rw_cb(name, type, str, asn1) \
 187         IMPLEMENT_PEM_read(name, type, str, asn1) \
 188         IMPLEMENT_PEM_write_cb(name, type, str, asn1)
 189
 190 /* These are the same except they are for the declarations */
 191
 192 # if defined(OPENSSL_NO_STDIO)
 193
 194 #  define DECLARE_PEM_read_fp(name, type) /**/
 195 #  define DECLARE_PEM_write_fp(name, type) /**/
 196 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 197 #   define DECLARE_PEM_write_fp_const(name, type) /**/
 198 #  endif
 199 #  define DECLARE_PEM_write_cb_fp(name, type) /**/
 200 # else
 201
 202 #  define DECLARE_PEM_read_fp(name, type)                               \
 203     type *PEM_read_##name(FILE *fp, type **x, pem_password_cb *cb, void *u);
 204
 205 #  define DECLARE_PEM_write_fp(name, type)              \
 206     int PEM_write_##name(FILE *fp, const type *x);
 207
 208 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 209 #   define DECLARE_PEM_write_fp_const(name, type)        \
 210     DECLARE_PEM_write_fp(name, type)
 211 #  endif
 212
 213 #  define DECLARE_PEM_write_cb_fp(name, type)                   \
 214     int PEM_write_##name(FILE *fp, const type *x,               \
 215                          const EVP_CIPHER *enc,                 \
 216                          const unsigned char *kstr, int klen,   \
 217                          pem_password_cb *cb, void *u);
 218
 219 # endif
 220
 221 #  define DECLARE_PEM_read_bio(name, type)                      \
 222     type *PEM_read_bio_##name(BIO *bp, type **x,                \
 223                               pem_password_cb *cb, void *u);
 224
 225 #  define DECLARE_PEM_write_bio(name, type)             \
 226     int PEM_write_bio_##name(BIO *bp, const type *x);
 227
 228 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 229 #   define DECLARE_PEM_write_bio_const(name, type)       \
 230     DECLARE_PEM_write_bio(name, type)
 231 #  endif
 232
 233 #  define DECLARE_PEM_write_cb_bio(name, type)                          \
 234     int PEM_write_bio_##name(BIO *bp, const type *x,                    \
 235                              const EVP_CIPHER *enc,                     \
 236                              const unsigned char *kstr, int klen,       \
 237                              pem_password_cb *cb, void *u);
 238
 239 # define DECLARE_PEM_write(name, type) \
 240         DECLARE_PEM_write_bio(name, type) \
 241         DECLARE_PEM_write_fp(name, type)
 242 # ifndef OPENSSL_NO_DEPRECATED_3_0
 243 #  define DECLARE_PEM_write_const(name, type) \
 244         DECLARE_PEM_write_bio_const(name, type) \
 245         DECLARE_PEM_write_fp_const(name, type)
 246 # endif
 247 # define DECLARE_PEM_write_cb(name, type) \
 248         DECLARE_PEM_write_cb_bio(name, type) \
 249         DECLARE_PEM_write_cb_fp(name, type)
 250 # define DECLARE_PEM_read(name, type) \
 251         DECLARE_PEM_read_bio(name, type) \
 252         DECLARE_PEM_read_fp(name, type)
 253 # define DECLARE_PEM_rw(name, type) \
 254         DECLARE_PEM_read(name, type) \
 255         DECLARE_PEM_write(name, type)
 256 # ifndef OPENSSL_NO_DEPRECATED_3_0
 257 #  define DECLARE_PEM_rw_const(name, type) \
 258         DECLARE_PEM_read(name, type) \
 259         DECLARE_PEM_write_const(name, type)
 260 # endif
 261 # define DECLARE_PEM_rw_cb(name, type) \
 262         DECLARE_PEM_read(name, type) \
 263         DECLARE_PEM_write_cb(name, type)
 264
 265 int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher);
 266 int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *len,
 267                   pem_password_cb *callback, void *u);
 268
 269 int PEM_read_bio(BIO *bp, char **name, char **header,
 270                  unsigned char **data, long *len);
 271 #   define PEM_FLAG_SECURE             0x1
 272 #   define PEM_FLAG_EAY_COMPATIBLE     0x2
 273 #   define PEM_FLAG_ONLY_B64           0x4
 274 int PEM_read_bio_ex(BIO *bp, char **name, char **header,
 275                     unsigned char **data, long *len, unsigned int flags);
 276 int PEM_bytes_read_bio_secmem(unsigned char **pdata, long *plen, char **pnm,
 277                               const char *name, BIO *bp, pem_password_cb *cb,
 278                               void *u);
 279 int PEM_write_bio(BIO *bp, const char *name, const char *hdr,
 280                   const unsigned char *data, long len);
 281 int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm,
 282                        const char *name, BIO *bp, pem_password_cb *cb,
 283                        void *u);
 284 void *PEM_ASN1_read_bio(d2i_of_void *d2i, const char *name, BIO *bp, void **x,
 285                         pem_password_cb *cb, void *u);
 286 int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp,
 287                        const void *x, const EVP_CIPHER *enc,
 288                        const unsigned char *kstr, int klen,
 289                        pem_password_cb *cb, void *u);
 290
 291 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
 292                                             pem_password_cb *cb, void *u);
 293 int PEM_X509_INFO_write_bio(BIO *bp, const X509_INFO *xi, EVP_CIPHER *enc,
 294                             const unsigned char *kstr, int klen,
 295                             pem_password_cb *cd, void *u);
 296
 297 #ifndef OPENSSL_NO_STDIO
 298 int PEM_read(FILE *fp, char **name, char **header,
 299              unsigned char **data, long *len);
 300 int PEM_write(FILE *fp, const char *name, const char *hdr,
 301               const unsigned char *data, long len);
 302 void *PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp, void **x,
 303                     pem_password_cb *cb, void *u);
 304 int PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp,
 305                    const void *x, const EVP_CIPHER *enc,
 306                    const unsigned char *kstr, int klen,
 307                    pem_password_cb *callback, void *u);
 308 STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
 309                                         pem_password_cb *cb, void *u);
 310 #endif
 311
 312 int PEM_SignInit(EVP_MD_CTX *ctx, EVP_MD *type);
 313 int PEM_SignUpdate(EVP_MD_CTX *ctx, const unsigned char *d, unsigned int cnt);
 314 int PEM_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
 315                   unsigned int *siglen, EVP_PKEY *pkey);
 316
 317 /* The default pem_password_cb that's used internally */
 318 int PEM_def_callback(char *buf, int num, int rwflag, void *userdata);
 319 void PEM_proc_type(char *buf, int type);
 320 void PEM_dek_info(char *buf, const char *type, int len, const char *str);
 321
 322 # include <openssl/symhacks.h>
 323
 324 DECLARE_PEM_rw(X509, X509)
 325 DECLARE_PEM_rw(X509_AUX, X509)
 326 DECLARE_PEM_rw(X509_REQ, X509_REQ)
 327 DECLARE_PEM_write(X509_REQ_NEW, X509_REQ)
 328 DECLARE_PEM_rw(X509_CRL, X509_CRL)
 329 DECLARE_PEM_rw(PKCS7, PKCS7)
 330 DECLARE_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE)
 331 DECLARE_PEM_rw(PKCS8, X509_SIG)
 332 DECLARE_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
 333 # ifndef OPENSSL_NO_RSA
 334 DECLARE_PEM_rw_cb(RSAPrivateKey, RSA)
 335 DECLARE_PEM_rw(RSAPublicKey, RSA)
 336 DECLARE_PEM_rw(RSA_PUBKEY, RSA)
 337 # endif
 338 # ifndef OPENSSL_NO_DSA
 339 DECLARE_PEM_rw_cb(DSAPrivateKey, DSA)
 340 DECLARE_PEM_rw(DSA_PUBKEY, DSA)
 341 DECLARE_PEM_rw(DSAparams, DSA)
 342 # endif
 343 # ifndef OPENSSL_NO_EC
 344 DECLARE_PEM_rw(ECPKParameters, EC_GROUP)
 345 DECLARE_PEM_rw_cb(ECPrivateKey, EC_KEY)
 346 DECLARE_PEM_rw(EC_PUBKEY, EC_KEY)
 347 # endif
 348 # ifndef OPENSSL_NO_DH
 349 DECLARE_PEM_rw(DHparams, DH)
 350 DECLARE_PEM_write(DHxparams, DH)
 351 # endif
 352 DECLARE_PEM_rw_cb(PrivateKey, EVP_PKEY)
 353 DECLARE_PEM_rw(PUBKEY, EVP_PKEY)
 354
 355 int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
 356                                          const EVP_CIPHER *enc,
 357                                          const unsigned char *kstr, int klen,
 358                                          pem_password_cb *cb, void *u);
 359
 360 /* Why do these take a signed char *kstr? */
 361 int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, const EVP_PKEY *x, int nid,
 362                                       const char *kstr, int klen,
 363                                       pem_password_cb *cb, void *u);
 364 int PEM_write_bio_PKCS8PrivateKey(BIO *, const EVP_PKEY *, const EVP_CIPHER *,
 365                                   const char *kstr, int klen,
 366                                   pem_password_cb *cb, void *u);
 367 int i2d_PKCS8PrivateKey_bio(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 368                             const char *kstr, int klen,
 369                             pem_password_cb *cb, void *u);
 370 int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, const EVP_PKEY *x, int nid,
 371                                 const char *kstr, int klen,
 372                                 pem_password_cb *cb, void *u);
 373 EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
 374                                   void *u);
 375
 376 # ifndef OPENSSL_NO_STDIO
 377 int i2d_PKCS8PrivateKey_fp(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 378                            const char *kstr, int klen,
 379                            pem_password_cb *cb, void *u);
 380 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, const EVP_PKEY *x, int nid,
 381                                const char *kstr, int klen,
 382                                pem_password_cb *cb, void *u);
 383 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, const EVP_PKEY *x, int nid,
 384                                   const char *kstr, int klen,
 385                                   pem_password_cb *cb, void *u);
 386
 387 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
 388                                  void *u);
 389
 390 int PEM_write_PKCS8PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
 391                               const char *kstr, int klen,
 392                               pem_password_cb *cd, void *u);
 393 # endif
 394 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x);
 395 int PEM_write_bio_Parameters(BIO *bp, const EVP_PKEY *x);
 396
 397 # ifndef OPENSSL_NO_DSA
 398 EVP_PKEY *b2i_PrivateKey(const unsigned char **in, long length);
 399 EVP_PKEY *b2i_PublicKey(const unsigned char **in, long length);
 400 EVP_PKEY *b2i_PrivateKey_bio(BIO *in);
 401 EVP_PKEY *b2i_PublicKey_bio(BIO *in);
 402 int i2b_PrivateKey_bio(BIO *out, const EVP_PKEY *pk);
 403 int i2b_PublicKey_bio(BIO *out, const EVP_PKEY *pk);
 404 #  ifndef OPENSSL_NO_RC4
 405 EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u);
 406 int i2b_PVK_bio(BIO *out, const EVP_PKEY *pk, int enclevel,
 407                 pem_password_cb *cb, void *u);
 408 #  endif
 409 # endif
 410
 411 # ifdef  __cplusplus
 412 }
 413 # endif
 414 #endif