pem_pk8.c
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- /* crypto/pem/pem_pkey.c */
- /* 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 "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);
- 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);
- /* 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))) {
- 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(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) {
- if(*x) EVP_PKEY_free(*x);
- *x = ret;
- }
- return ret;
- }
- #ifndef OPENSSL_NO_FP_API
- 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))) {
- 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))) {
- 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)