| /* 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 <stdio.h> |
| #include <string.h> |
| |
| #include <openssl/dh.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> |
| |
| EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, |
| void *u) |
| { |
| char *nm = NULL; |
| const unsigned char *p = NULL; |
| unsigned char *data = NULL; |
| long len; |
| EVP_PKEY *ret = NULL; |
| |
| if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u)) |
| return NULL; |
| p = data; |
| |
| if (strcmp(nm, PEM_STRING_PKCS8INF) == 0) { |
| PKCS8_PRIV_KEY_INFO *p8inf; |
| p8inf = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len); |
| if (!p8inf) |
| goto p8err; |
| ret = EVP_PKCS82PKEY(p8inf); |
| if (x) { |
| if (*x) |
| EVP_PKEY_free((EVP_PKEY *)*x); |
| *x = ret; |
| } |
| PKCS8_PRIV_KEY_INFO_free(p8inf); |
| } else if (strcmp(nm, PEM_STRING_PKCS8) == 0) { |
| PKCS8_PRIV_KEY_INFO *p8inf; |
| X509_SIG *p8; |
| int klen; |
| char psbuf[PEM_BUFSIZE]; |
| p8 = d2i_X509_SIG(NULL, &p, len); |
| if (!p8) |
| goto p8err; |
| |
| klen = 0; |
| if (!cb) |
| cb = PEM_def_callback; |
| klen = cb(psbuf, PEM_BUFSIZE, 0, u); |
| if (klen <= 0) { |
| OPENSSL_PUT_ERROR(PEM, PEM_R_BAD_PASSWORD_READ); |
| X509_SIG_free(p8); |
| goto err; |
| } |
| p8inf = PKCS8_decrypt(p8, psbuf, klen); |
| X509_SIG_free(p8); |
| OPENSSL_cleanse(psbuf, klen); |
| if (!p8inf) |
| goto p8err; |
| ret = EVP_PKCS82PKEY(p8inf); |
| if (x) { |
| if (*x) |
| EVP_PKEY_free((EVP_PKEY *)*x); |
| *x = ret; |
| } |
| PKCS8_PRIV_KEY_INFO_free(p8inf); |
| } else if (strcmp(nm, PEM_STRING_RSA) == 0) { |
| /* TODO(davidben): d2i_PrivateKey parses PKCS#8 along with the |
| * standalone format. This and the cases below probably should not |
| * accept PKCS#8. */ |
| ret = d2i_PrivateKey(EVP_PKEY_RSA, x, &p, len); |
| } else if (strcmp(nm, PEM_STRING_EC) == 0) { |
| ret = d2i_PrivateKey(EVP_PKEY_EC, x, &p, len); |
| } else if (strcmp(nm, PEM_STRING_DSA) == 0) { |
| ret = d2i_PrivateKey(EVP_PKEY_DSA, x, &p, len); |
| } |
| p8err: |
| if (ret == NULL) |
| OPENSSL_PUT_ERROR(PEM, ERR_R_ASN1_LIB); |
| |
| err: |
| OPENSSL_free(nm); |
| OPENSSL_free(data); |
| return (ret); |
| } |
| |
| int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, |
| unsigned char *kstr, int klen, |
| pem_password_cb *cb, void *u) |
| { |
| return PEM_write_bio_PKCS8PrivateKey(bp, x, enc, (char *)kstr, klen, cb, u); |
| } |
| |
| EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, |
| void *u) |
| { |
| BIO *b = BIO_new_fp(fp, BIO_NOCLOSE); |
| if (b == NULL) { |
| OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB); |
| return NULL; |
| } |
| EVP_PKEY *ret = PEM_read_bio_PrivateKey(b, x, cb, u); |
| BIO_free(b); |
| return ret; |
| } |
| |
| int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, |
| unsigned char *kstr, int klen, |
| pem_password_cb *cb, void *u) |
| { |
| BIO *b = BIO_new_fp(fp, BIO_NOCLOSE); |
| if (b == NULL) { |
| OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB); |
| return 0; |
| } |
| int ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u); |
| BIO_free(b); |
| return ret; |
| } |
| |
| |
| /* Transparently read in PKCS#3 or X9.42 DH parameters */ |
| |
| DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u) |
| { |
| char *nm = NULL; |
| const unsigned char *p = NULL; |
| unsigned char *data = NULL; |
| long len; |
| DH *ret = NULL; |
| |
| if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_DHPARAMS, bp, cb, u)) |
| return NULL; |
| p = data; |
| |
| ret = d2i_DHparams(x, &p, len); |
| |
| if (ret == NULL) |
| OPENSSL_PUT_ERROR(PEM, ERR_R_ASN1_LIB); |
| OPENSSL_free(nm); |
| OPENSSL_free(data); |
| return ret; |
| } |
| |
| DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u) |
| { |
| BIO *b = BIO_new_fp(fp, BIO_NOCLOSE); |
| if (b == NULL) { |
| OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB); |
| return NULL; |
| } |
| DH *ret = PEM_read_bio_DHparams(b, x, cb, u); |
| BIO_free(b); |
| return ret; |
| } |
