| /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | 
 |  * All rights reserved. | 
 |  * | 
 |  * This package is an SSL implementation written | 
 |  * by Eric Young (eay@cryptsoft.com). | 
 |  * The implementation was written so as to conform with Netscapes SSL. | 
 |  * | 
 |  * This library is free for commercial and non-commercial use as long as | 
 |  * the following conditions are aheared to.  The following conditions | 
 |  * apply to all code found in this distribution, be it the RC4, RSA, | 
 |  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation | 
 |  * included with this distribution is covered by the same copyright terms | 
 |  * except that the holder is Tim Hudson (tjh@cryptsoft.com). | 
 |  * | 
 |  * Copyright remains Eric Young's, and as such any Copyright notices in | 
 |  * the code are not to be removed. | 
 |  * If this package is used in a product, Eric Young should be given attribution | 
 |  * as the author of the parts of the library used. | 
 |  * This can be in the form of a textual message at program startup or | 
 |  * in documentation (online or textual) provided with the package. | 
 |  * | 
 |  * Redistribution and use in source and binary forms, with or without | 
 |  * modification, are permitted provided that the following conditions | 
 |  * are met: | 
 |  * 1. Redistributions of source code must retain the copyright | 
 |  *    notice, this list of conditions and the following disclaimer. | 
 |  * 2. Redistributions in binary form must reproduce the above copyright | 
 |  *    notice, this list of conditions and the following disclaimer in the | 
 |  *    documentation and/or other materials provided with the distribution. | 
 |  * 3. All advertising materials mentioning features or use of this software | 
 |  *    must display the following acknowledgement: | 
 |  *    "This product includes cryptographic software written by | 
 |  *     Eric Young (eay@cryptsoft.com)" | 
 |  *    The word 'cryptographic' can be left out if the rouines from the library | 
 |  *    being used are not cryptographic related :-). | 
 |  * 4. If you include any Windows specific code (or a derivative thereof) from | 
 |  *    the apps directory (application code) you must include an acknowledgement: | 
 |  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | 
 |  * | 
 |  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | 
 |  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 
 |  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 
 |  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | 
 |  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | 
 |  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | 
 |  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | 
 |  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | 
 |  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 
 |  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | 
 |  * SUCH DAMAGE. | 
 |  * | 
 |  * The licence and distribution terms for any publically available version or | 
 |  * derivative of this code cannot be changed.  i.e. this code cannot simply be | 
 |  * copied and put under another distribution licence | 
 |  * [including the GNU Public Licence.] | 
 |  */ | 
 |  | 
 | #include <stdio.h> | 
 | #include "internal/cryptlib.h" | 
 | #include <openssl/buffer.h> | 
 | #include <openssl/objects.h> | 
 | #include <openssl/evp.h> | 
 | #include <openssl/rand.h> | 
 | #include <openssl/x509.h> | 
 | #include <openssl/pkcs12.h> | 
 | #include <openssl/pem.h> | 
 |  | 
 | static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, | 
 |                       int nid, const EVP_CIPHER *enc, | 
 |                       char *kstr, int klen, pem_password_cb *cb, void *u); | 
 |  | 
 | #ifndef OPENSSL_NO_STDIO | 
 | static int do_pk8pkey_fp(FILE *bp, EVP_PKEY *x, int isder, | 
 |                          int nid, const EVP_CIPHER *enc, | 
 |                          char *kstr, int klen, pem_password_cb *cb, void *u); | 
 | #endif | 
 | /* | 
 |  * These functions write a private key in PKCS#8 format: it is a "drop in" | 
 |  * replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc' | 
 |  * is NULL then it uses the unencrypted private key form. The 'nid' versions | 
 |  * uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0. | 
 |  */ | 
 |  | 
 | int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid, | 
 |                                       char *kstr, int klen, | 
 |                                       pem_password_cb *cb, void *u) | 
 | { | 
 |     return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u); | 
 | } | 
 |  | 
 | int PEM_write_bio_PKCS8PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, | 
 |                                   char *kstr, int klen, | 
 |                                   pem_password_cb *cb, void *u) | 
 | { | 
 |     return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u); | 
 | } | 
 |  | 
 | int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, | 
 |                             char *kstr, int klen, | 
 |                             pem_password_cb *cb, void *u) | 
 | { | 
 |     return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u); | 
 | } | 
 |  | 
 | int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid, | 
 |                                 char *kstr, int klen, | 
 |                                 pem_password_cb *cb, void *u) | 
 | { | 
 |     return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u); | 
 | } | 
 |  | 
 | static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, | 
 |                       const EVP_CIPHER *enc, char *kstr, int klen, | 
 |                       pem_password_cb *cb, void *u) | 
 | { | 
 |     X509_SIG *p8; | 
 |     PKCS8_PRIV_KEY_INFO *p8inf; | 
 |     char buf[PEM_BUFSIZE]; | 
 |     int ret; | 
 |  | 
 |     if ((p8inf = EVP_PKEY2PKCS8(x)) == NULL) { | 
 |         PEMerr(PEM_F_DO_PK8PKEY, PEM_R_ERROR_CONVERTING_PRIVATE_KEY); | 
 |         return 0; | 
 |     } | 
 |     if (enc || (nid != -1)) { | 
 |         if (!kstr) { | 
 |             if (!cb) | 
 |                 klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u); | 
 |             else | 
 |                 klen = cb(buf, PEM_BUFSIZE, 1, u); | 
 |             if (klen <= 0) { | 
 |                 PEMerr(PEM_F_DO_PK8PKEY, PEM_R_READ_KEY); | 
 |                 PKCS8_PRIV_KEY_INFO_free(p8inf); | 
 |                 return 0; | 
 |             } | 
 |  | 
 |             kstr = buf; | 
 |         } | 
 |         p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf); | 
 |         if (kstr == buf) | 
 |             OPENSSL_cleanse(buf, klen); | 
 |         PKCS8_PRIV_KEY_INFO_free(p8inf); | 
 |         if (p8 == NULL) | 
 |             return 0; | 
 |         if (isder) | 
 |             ret = i2d_PKCS8_bio(bp, p8); | 
 |         else | 
 |             ret = PEM_write_bio_PKCS8(bp, p8); | 
 |         X509_SIG_free(p8); | 
 |         return ret; | 
 |     } else { | 
 |         if (isder) | 
 |             ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf); | 
 |         else | 
 |             ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf); | 
 |         PKCS8_PRIV_KEY_INFO_free(p8inf); | 
 |         return ret; | 
 |     } | 
 | } | 
 |  | 
 | EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, | 
 |                                   void *u) | 
 | { | 
 |     PKCS8_PRIV_KEY_INFO *p8inf = NULL; | 
 |     X509_SIG *p8 = NULL; | 
 |     int klen; | 
 |     EVP_PKEY *ret; | 
 |     char psbuf[PEM_BUFSIZE]; | 
 |     p8 = d2i_PKCS8_bio(bp, NULL); | 
 |     if (!p8) | 
 |         return NULL; | 
 |     if (cb) | 
 |         klen = cb(psbuf, PEM_BUFSIZE, 0, u); | 
 |     else | 
 |         klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u); | 
 |     if (klen <= 0) { | 
 |         PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ); | 
 |         X509_SIG_free(p8); | 
 |         return NULL; | 
 |     } | 
 |     p8inf = PKCS8_decrypt(p8, psbuf, klen); | 
 |     X509_SIG_free(p8); | 
 |     if (!p8inf) | 
 |         return NULL; | 
 |     ret = EVP_PKCS82PKEY(p8inf); | 
 |     PKCS8_PRIV_KEY_INFO_free(p8inf); | 
 |     if (!ret) | 
 |         return NULL; | 
 |     if (x) { | 
 |         EVP_PKEY_free(*x); | 
 |         *x = ret; | 
 |     } | 
 |     return ret; | 
 | } | 
 |  | 
 | #ifndef OPENSSL_NO_STDIO | 
 |  | 
 | int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, | 
 |                            char *kstr, int klen, pem_password_cb *cb, void *u) | 
 | { | 
 |     return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u); | 
 | } | 
 |  | 
 | int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid, | 
 |                                char *kstr, int klen, | 
 |                                pem_password_cb *cb, void *u) | 
 | { | 
 |     return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u); | 
 | } | 
 |  | 
 | int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid, | 
 |                                   char *kstr, int klen, | 
 |                                   pem_password_cb *cb, void *u) | 
 | { | 
 |     return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u); | 
 | } | 
 |  | 
 | int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, | 
 |                               char *kstr, int klen, pem_password_cb *cb, | 
 |                               void *u) | 
 | { | 
 |     return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u); | 
 | } | 
 |  | 
 | static int do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, | 
 |                          const EVP_CIPHER *enc, char *kstr, int klen, | 
 |                          pem_password_cb *cb, void *u) | 
 | { | 
 |     BIO *bp; | 
 |     int ret; | 
 |  | 
 |     if ((bp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { | 
 |         PEMerr(PEM_F_DO_PK8PKEY_FP, ERR_R_BUF_LIB); | 
 |         return (0); | 
 |     } | 
 |     ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u); | 
 |     BIO_free(bp); | 
 |     return ret; | 
 | } | 
 |  | 
 | EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, | 
 |                                  void *u) | 
 | { | 
 |     BIO *bp; | 
 |     EVP_PKEY *ret; | 
 |  | 
 |     if ((bp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { | 
 |         PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_FP, ERR_R_BUF_LIB); | 
 |         return NULL; | 
 |     } | 
 |     ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u); | 
 |     BIO_free(bp); | 
 |     return ret; | 
 | } | 
 |  | 
 | #endif | 
 |  | 
 | IMPLEMENT_PEM_rw(PKCS8, X509_SIG, PEM_STRING_PKCS8, X509_SIG) | 
 |  | 
 |  | 
 | IMPLEMENT_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF, | 
 |              PKCS8_PRIV_KEY_INFO) |