| /* 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 <openssl/pem.h> |
| |
| #include <openssl/err.h> |
| #include <openssl/evp.h> |
| #include <openssl/mem.h> |
| #include <openssl/obj.h> |
| #include <openssl/pkcs8.h> |
| #include <openssl/rand.h> |
| #include <openssl/x509.h> |
| |
| static int do_pk8pkey(BIO *bp, const EVP_PKEY *x, int isder, int nid, |
| const EVP_CIPHER *enc, const char *pass, int pass_len, |
| pem_password_cb *cb, void *u); |
| static int do_pk8pkey_fp(FILE *bp, const EVP_PKEY *x, int isder, int nid, |
| const EVP_CIPHER *enc, const char *pass, int pass_len, |
| pem_password_cb *cb, void *u); |
| |
| // 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, const EVP_PKEY *x, int nid, |
| const char *pass, int pass_len, |
| pem_password_cb *cb, void *u) { |
| return do_pk8pkey(bp, x, 0, nid, NULL, pass, pass_len, cb, u); |
| } |
| |
| int PEM_write_bio_PKCS8PrivateKey(BIO *bp, const EVP_PKEY *x, |
| const EVP_CIPHER *enc, const char *pass, |
| int pass_len, pem_password_cb *cb, void *u) { |
| return do_pk8pkey(bp, x, 0, -1, enc, pass, pass_len, cb, u); |
| } |
| |
| int i2d_PKCS8PrivateKey_bio(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc, |
| const char *pass, int pass_len, pem_password_cb *cb, |
| void *u) { |
| return do_pk8pkey(bp, x, 1, -1, enc, pass, pass_len, cb, u); |
| } |
| |
| int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, const EVP_PKEY *x, int nid, |
| const char *pass, int pass_len, |
| pem_password_cb *cb, void *u) { |
| return do_pk8pkey(bp, x, 1, nid, NULL, pass, pass_len, cb, u); |
| } |
| |
| static int do_pk8pkey(BIO *bp, const EVP_PKEY *x, int isder, int nid, |
| const EVP_CIPHER *enc, const char *pass, int pass_len, |
| 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))) { |
| OPENSSL_PUT_ERROR(PEM, PEM_R_ERROR_CONVERTING_PRIVATE_KEY); |
| return 0; |
| } |
| if (enc || (nid != -1)) { |
| if (!pass) { |
| pass_len = 0; |
| if (!cb) { |
| cb = PEM_def_callback; |
| } |
| pass_len = cb(buf, PEM_BUFSIZE, 1, u); |
| if (pass_len <= 0) { |
| OPENSSL_PUT_ERROR(PEM, PEM_R_READ_KEY); |
| PKCS8_PRIV_KEY_INFO_free(p8inf); |
| return 0; |
| } |
| |
| pass = buf; |
| } |
| p8 = PKCS8_encrypt(nid, enc, pass, pass_len, NULL, 0, 0, p8inf); |
| if (pass == buf) { |
| OPENSSL_cleanse(buf, pass_len); |
| } |
| PKCS8_PRIV_KEY_INFO_free(p8inf); |
| 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 pass_len; |
| EVP_PKEY *ret; |
| char psbuf[PEM_BUFSIZE]; |
| p8 = d2i_PKCS8_bio(bp, NULL); |
| if (!p8) { |
| return NULL; |
| } |
| |
| pass_len = 0; |
| if (!cb) { |
| cb = PEM_def_callback; |
| } |
| pass_len = cb(psbuf, PEM_BUFSIZE, 0, u); |
| if (pass_len <= 0) { |
| OPENSSL_PUT_ERROR(PEM, PEM_R_BAD_PASSWORD_READ); |
| X509_SIG_free(p8); |
| return NULL; |
| } |
| p8inf = PKCS8_decrypt(p8, psbuf, pass_len); |
| X509_SIG_free(p8); |
| OPENSSL_cleanse(psbuf, pass_len); |
| if (!p8inf) { |
| return NULL; |
| } |
| ret = EVP_PKCS82PKEY(p8inf); |
| PKCS8_PRIV_KEY_INFO_free(p8inf); |
| if (!ret) { |
| return NULL; |
| } |
| if (x) { |
| if (*x) { |
| EVP_PKEY_free(*x); |
| } |
| *x = ret; |
| } |
| return ret; |
| } |
| |
| |
| int i2d_PKCS8PrivateKey_fp(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc, |
| const char *pass, int pass_len, pem_password_cb *cb, |
| void *u) { |
| return do_pk8pkey_fp(fp, x, 1, -1, enc, pass, pass_len, cb, u); |
| } |
| |
| int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, const EVP_PKEY *x, int nid, |
| const char *pass, int pass_len, |
| pem_password_cb *cb, void *u) { |
| return do_pk8pkey_fp(fp, x, 1, nid, NULL, pass, pass_len, cb, u); |
| } |
| |
| int PEM_write_PKCS8PrivateKey_nid(FILE *fp, const EVP_PKEY *x, int nid, |
| const char *pass, int pass_len, |
| pem_password_cb *cb, void *u) { |
| return do_pk8pkey_fp(fp, x, 0, nid, NULL, pass, pass_len, cb, u); |
| } |
| |
| int PEM_write_PKCS8PrivateKey(FILE *fp, const EVP_PKEY *x, |
| const EVP_CIPHER *enc, const char *pass, |
| int pass_len, pem_password_cb *cb, void *u) { |
| return do_pk8pkey_fp(fp, x, 0, -1, enc, pass, pass_len, cb, u); |
| } |
| |
| static int do_pk8pkey_fp(FILE *fp, const EVP_PKEY *x, int isder, int nid, |
| const EVP_CIPHER *enc, const char *pass, int pass_len, |
| pem_password_cb *cb, void *u) { |
| BIO *bp; |
| int ret; |
| if (!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) { |
| OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB); |
| return 0; |
| } |
| ret = do_pk8pkey(bp, x, isder, nid, enc, pass, pass_len, 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))) { |
| OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB); |
| return NULL; |
| } |
| ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u); |
| BIO_free(bp); |
| return ret; |
| } |
| |
| |
| 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) |
