mirror of
https://github.com/openssl/openssl.git
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cf1b7d9664
sure they are available in opensslconf.h, by giving them names starting with "OPENSSL_" to avoid conflicts with other packages and by making sure e_os2.h will cover all platform-specific cases together with opensslconf.h. I've checked fairly well that nothing breaks with this (apart from external software that will adapt if they have used something like NO_KRB5), but I can't guarantee it completely, so a review of this change would be a good thing.
964 lines
24 KiB
C
964 lines
24 KiB
C
/* crypto/pem/pem_lib.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/buffer.h>
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#include <openssl/objects.h>
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#include <openssl/evp.h>
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#include <openssl/rand.h>
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#include <openssl/x509.h>
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#include <openssl/pem.h>
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#include <openssl/pkcs12.h>
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#ifndef OPENSSL_NO_DES
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#include <openssl/des.h>
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#endif
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const char *PEM_version="PEM" OPENSSL_VERSION_PTEXT;
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#define MIN_LENGTH 4
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static int def_callback(char *buf, int num, int w, void *userdata);
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static int load_iv(unsigned char **fromp,unsigned char *to, int num);
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static int check_pem(const char *nm, const char *name);
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static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder,
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int nid, const EVP_CIPHER *enc,
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char *kstr, int klen,
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pem_password_cb *cb, void *u);
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static int do_pk8pkey_fp(FILE *bp, EVP_PKEY *x, int isder,
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int nid, const EVP_CIPHER *enc,
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char *kstr, int klen,
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pem_password_cb *cb, void *u);
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static int def_callback(char *buf, int num, int w, void *key)
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{
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#ifdef OPENSSL_NO_FP_API
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/* We should not ever call the default callback routine from
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* windows. */
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PEMerr(PEM_F_DEF_CALLBACK,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
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return(-1);
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#else
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int i,j;
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const char *prompt;
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if(key) {
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i=strlen(key);
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i=(i > num)?num:i;
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memcpy(buf,key,i);
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return(i);
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}
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prompt=EVP_get_pw_prompt();
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if (prompt == NULL)
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prompt="Enter PEM pass phrase:";
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for (;;)
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{
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i=EVP_read_pw_string(buf,num,prompt,w);
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if (i != 0)
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{
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PEMerr(PEM_F_DEF_CALLBACK,PEM_R_PROBLEMS_GETTING_PASSWORD);
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memset(buf,0,(unsigned int)num);
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return(-1);
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}
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j=strlen(buf);
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if (j < MIN_LENGTH)
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{
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fprintf(stderr,"phrase is too short, needs to be at least %d chars\n",MIN_LENGTH);
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}
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else
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break;
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}
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return(j);
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#endif
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}
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void PEM_proc_type(char *buf, int type)
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{
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const char *str;
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if (type == PEM_TYPE_ENCRYPTED)
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str="ENCRYPTED";
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else if (type == PEM_TYPE_MIC_CLEAR)
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str="MIC-CLEAR";
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else if (type == PEM_TYPE_MIC_ONLY)
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str="MIC-ONLY";
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else
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str="BAD-TYPE";
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strcat(buf,"Proc-Type: 4,");
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strcat(buf,str);
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strcat(buf,"\n");
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}
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void PEM_dek_info(char *buf, const char *type, int len, char *str)
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{
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static unsigned char map[17]="0123456789ABCDEF";
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long i;
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int j;
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strcat(buf,"DEK-Info: ");
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strcat(buf,type);
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strcat(buf,",");
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j=strlen(buf);
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for (i=0; i<len; i++)
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{
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buf[j+i*2] =map[(str[i]>>4)&0x0f];
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buf[j+i*2+1]=map[(str[i] )&0x0f];
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}
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buf[j+i*2]='\n';
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buf[j+i*2+1]='\0';
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}
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#ifndef OPENSSL_NO_FP_API
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char *PEM_ASN1_read(char *(*d2i)(), const char *name, FILE *fp, char **x,
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pem_password_cb *cb, void *u)
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{
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BIO *b;
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char *ret;
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if ((b=BIO_new(BIO_s_file())) == NULL)
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{
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PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB);
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return(0);
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}
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BIO_set_fp(b,fp,BIO_NOCLOSE);
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ret=PEM_ASN1_read_bio(d2i,name,b,x,cb,u);
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BIO_free(b);
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return(ret);
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}
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#endif
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static int check_pem(const char *nm, const char *name)
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{
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/* Normal matching nm and name */
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if (!strcmp(nm,name)) return 1;
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/* Make PEM_STRING_EVP_PKEY match any private key */
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if(!strcmp(nm,PEM_STRING_PKCS8) &&
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!strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
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if(!strcmp(nm,PEM_STRING_PKCS8INF) &&
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!strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
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if(!strcmp(nm,PEM_STRING_RSA) &&
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!strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
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if(!strcmp(nm,PEM_STRING_DSA) &&
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!strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
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/* Permit older strings */
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if(!strcmp(nm,PEM_STRING_X509_OLD) &&
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!strcmp(name,PEM_STRING_X509)) return 1;
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if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) &&
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!strcmp(name,PEM_STRING_X509_REQ)) return 1;
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/* Allow normal certs to be read as trusted certs */
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if(!strcmp(nm,PEM_STRING_X509) &&
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!strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
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if(!strcmp(nm,PEM_STRING_X509_OLD) &&
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!strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
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/* Some CAs use PKCS#7 with CERTIFICATE headers */
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if(!strcmp(nm, PEM_STRING_X509) &&
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!strcmp(name, PEM_STRING_PKCS7)) return 1;
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return 0;
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}
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char *PEM_ASN1_read_bio(char *(*d2i)(), const char *name, BIO *bp, char **x,
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pem_password_cb *cb, void *u)
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{
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EVP_CIPHER_INFO cipher;
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char *nm=NULL,*header=NULL;
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unsigned char *p=NULL,*data=NULL;
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long len;
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char *ret=NULL;
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for (;;)
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{
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if (!PEM_read_bio(bp,&nm,&header,&data,&len)) {
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if(ERR_GET_REASON(ERR_peek_error()) ==
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PEM_R_NO_START_LINE)
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ERR_add_error_data(2, "Expecting: ", name);
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return(NULL);
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}
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if(check_pem(nm, name)) break;
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OPENSSL_free(nm);
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OPENSSL_free(header);
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OPENSSL_free(data);
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}
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if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err;
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if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err;
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p=data;
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if (strcmp(name,PEM_STRING_EVP_PKEY) == 0) {
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if (strcmp(nm,PEM_STRING_RSA) == 0)
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ret=d2i(EVP_PKEY_RSA,x,&p,len);
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else if (strcmp(nm,PEM_STRING_DSA) == 0)
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ret=d2i(EVP_PKEY_DSA,x,&p,len);
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else if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
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PKCS8_PRIV_KEY_INFO *p8inf;
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p8inf=d2i_PKCS8_PRIV_KEY_INFO(
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(PKCS8_PRIV_KEY_INFO **) x, &p, len);
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ret = (char *)EVP_PKCS82PKEY(p8inf);
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PKCS8_PRIV_KEY_INFO_free(p8inf);
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} else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
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PKCS8_PRIV_KEY_INFO *p8inf;
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X509_SIG *p8;
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int klen;
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char psbuf[PEM_BUFSIZE];
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p8 = d2i_X509_SIG(NULL, &p, len);
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if(!p8) goto p8err;
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if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
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else klen=def_callback(psbuf,PEM_BUFSIZE,0,u);
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if (klen <= 0) {
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PEMerr(PEM_F_PEM_ASN1_READ_BIO,
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PEM_R_BAD_PASSWORD_READ);
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goto err;
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}
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p8inf = PKCS8_decrypt(p8, psbuf, klen);
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X509_SIG_free(p8);
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if(!p8inf) goto p8err;
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ret = (char *)EVP_PKCS82PKEY(p8inf);
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if(x) {
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if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
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*x = ret;
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}
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PKCS8_PRIV_KEY_INFO_free(p8inf);
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}
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} else ret=d2i(x,&p,len);
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p8err:
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if (ret == NULL)
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PEMerr(PEM_F_PEM_ASN1_READ_BIO,ERR_R_ASN1_LIB);
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err:
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OPENSSL_free(nm);
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OPENSSL_free(header);
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OPENSSL_free(data);
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return(ret);
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}
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#ifndef OPENSSL_NO_FP_API
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int PEM_ASN1_write(int (*i2d)(), const char *name, FILE *fp, char *x,
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const EVP_CIPHER *enc, unsigned char *kstr, int klen,
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pem_password_cb *callback, void *u)
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{
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BIO *b;
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int ret;
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if ((b=BIO_new(BIO_s_file())) == NULL)
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{
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PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB);
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return(0);
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}
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BIO_set_fp(b,fp,BIO_NOCLOSE);
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ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u);
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BIO_free(b);
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return(ret);
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}
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#endif
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int PEM_ASN1_write_bio(int (*i2d)(), const char *name, BIO *bp, char *x,
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const EVP_CIPHER *enc, unsigned char *kstr, int klen,
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pem_password_cb *callback, void *u)
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{
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EVP_CIPHER_CTX ctx;
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int dsize=0,i,j,ret=0;
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unsigned char *p,*data=NULL;
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const char *objstr=NULL;
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char buf[PEM_BUFSIZE];
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unsigned char key[EVP_MAX_KEY_LENGTH];
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unsigned char iv[EVP_MAX_IV_LENGTH];
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if (enc != NULL)
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{
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objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
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if (objstr == NULL)
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{
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PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
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goto err;
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}
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}
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if ((dsize=i2d(x,NULL)) < 0)
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{
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PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
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dsize=0;
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goto err;
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}
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/* dzise + 8 bytes are needed */
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data=(unsigned char *)OPENSSL_malloc((unsigned int)dsize+20);
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if (data == NULL)
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{
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PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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p=data;
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i=i2d(x,&p);
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if (enc != NULL)
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{
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if (kstr == NULL)
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{
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if (callback == NULL)
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klen=def_callback(buf,PEM_BUFSIZE,1,u);
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else
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klen=(*callback)(buf,PEM_BUFSIZE,1,u);
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if (klen <= 0)
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{
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PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
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goto err;
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}
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#ifdef CHARSET_EBCDIC
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/* Convert the pass phrase from EBCDIC */
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ebcdic2ascii(buf, buf, klen);
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#endif
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kstr=(unsigned char *)buf;
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}
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RAND_add(data,i,0);/* put in the RSA key. */
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if (RAND_pseudo_bytes(iv,8) < 0) /* Generate a salt */
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goto err;
|
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/* The 'iv' is used as the iv and as a salt. It is
|
|
* NOT taken from the BytesToKey function */
|
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EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
|
|
|
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if (kstr == (unsigned char *)buf) memset(buf,0,PEM_BUFSIZE);
|
|
|
|
buf[0]='\0';
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PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
|
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PEM_dek_info(buf,objstr,8,(char *)iv);
|
|
/* k=strlen(buf); */
|
|
|
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EVP_EncryptInit(&ctx,enc,key,iv);
|
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EVP_EncryptUpdate(&ctx,data,&j,data,i);
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EVP_EncryptFinal(&ctx,&(data[j]),&i);
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i+=j;
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ret=1;
|
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}
|
|
else
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{
|
|
ret=1;
|
|
buf[0]='\0';
|
|
}
|
|
i=PEM_write_bio(bp,name,buf,data,i);
|
|
if (i <= 0) ret=0;
|
|
err:
|
|
memset(key,0,sizeof(key));
|
|
memset(iv,0,sizeof(iv));
|
|
memset((char *)&ctx,0,sizeof(ctx));
|
|
memset(buf,0,PEM_BUFSIZE);
|
|
memset(data,0,(unsigned int)dsize);
|
|
OPENSSL_free(data);
|
|
return(ret);
|
|
}
|
|
|
|
int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
|
|
pem_password_cb *callback,void *u)
|
|
{
|
|
int i,j,o,klen;
|
|
long len;
|
|
EVP_CIPHER_CTX ctx;
|
|
unsigned char key[EVP_MAX_KEY_LENGTH];
|
|
char buf[PEM_BUFSIZE];
|
|
|
|
len= *plen;
|
|
|
|
if (cipher->cipher == NULL) return(1);
|
|
if (callback == NULL)
|
|
klen=def_callback(buf,PEM_BUFSIZE,0,u);
|
|
else
|
|
klen=callback(buf,PEM_BUFSIZE,0,u);
|
|
if (klen <= 0)
|
|
{
|
|
PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
|
|
return(0);
|
|
}
|
|
#ifdef CHARSET_EBCDIC
|
|
/* Convert the pass phrase from EBCDIC */
|
|
ebcdic2ascii(buf, buf, klen);
|
|
#endif
|
|
|
|
EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
|
|
(unsigned char *)buf,klen,1,key,NULL);
|
|
|
|
j=(int)len;
|
|
EVP_DecryptInit(&ctx,cipher->cipher,key,&(cipher->iv[0]));
|
|
EVP_DecryptUpdate(&ctx,data,&i,data,j);
|
|
o=EVP_DecryptFinal(&ctx,&(data[i]),&j);
|
|
EVP_CIPHER_CTX_cleanup(&ctx);
|
|
memset((char *)buf,0,sizeof(buf));
|
|
memset((char *)key,0,sizeof(key));
|
|
j+=i;
|
|
if (!o)
|
|
{
|
|
PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
|
|
return(0);
|
|
}
|
|
*plen=j;
|
|
return(1);
|
|
}
|
|
|
|
int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher)
|
|
{
|
|
int o;
|
|
const EVP_CIPHER *enc=NULL;
|
|
char *p,c;
|
|
|
|
cipher->cipher=NULL;
|
|
if ((header == NULL) || (*header == '\0') || (*header == '\n'))
|
|
return(1);
|
|
if (strncmp(header,"Proc-Type: ",11) != 0)
|
|
{ PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
|
|
header+=11;
|
|
if (*header != '4') return(0); header++;
|
|
if (*header != ',') return(0); header++;
|
|
if (strncmp(header,"ENCRYPTED",9) != 0)
|
|
{ PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
|
|
for (; (*header != '\n') && (*header != '\0'); header++)
|
|
;
|
|
if (*header == '\0')
|
|
{ PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
|
|
header++;
|
|
if (strncmp(header,"DEK-Info: ",10) != 0)
|
|
{ PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
|
|
header+=10;
|
|
|
|
p=header;
|
|
for (;;)
|
|
{
|
|
c= *header;
|
|
#ifndef CHARSET_EBCDIC
|
|
if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
|
|
((c >= '0') && (c <= '9'))))
|
|
break;
|
|
#else
|
|
if (!( isupper(c) || (c == '-') ||
|
|
isdigit(c)))
|
|
break;
|
|
#endif
|
|
header++;
|
|
}
|
|
*header='\0';
|
|
o=OBJ_sn2nid(p);
|
|
cipher->cipher=enc=EVP_get_cipherbyname(p);
|
|
*header=c;
|
|
header++;
|
|
|
|
if (enc == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
|
|
return(0);
|
|
}
|
|
if (!load_iv((unsigned char **)&header,&(cipher->iv[0]),8)) return(0);
|
|
|
|
return(1);
|
|
}
|
|
|
|
static int load_iv(unsigned char **fromp, unsigned char *to, int num)
|
|
{
|
|
int v,i;
|
|
unsigned char *from;
|
|
|
|
from= *fromp;
|
|
for (i=0; i<num; i++) to[i]=0;
|
|
num*=2;
|
|
for (i=0; i<num; i++)
|
|
{
|
|
if ((*from >= '0') && (*from <= '9'))
|
|
v= *from-'0';
|
|
else if ((*from >= 'A') && (*from <= 'F'))
|
|
v= *from-'A'+10;
|
|
else if ((*from >= 'a') && (*from <= 'f'))
|
|
v= *from-'a'+10;
|
|
else
|
|
{
|
|
PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
|
|
return(0);
|
|
}
|
|
from++;
|
|
to[i/2]|=v<<(long)((!(i&1))*4);
|
|
}
|
|
|
|
*fromp=from;
|
|
return(1);
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_FP_API
|
|
int PEM_write(FILE *fp, char *name, char *header, unsigned char *data,
|
|
long len)
|
|
{
|
|
BIO *b;
|
|
int ret;
|
|
|
|
if ((b=BIO_new(BIO_s_file())) == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB);
|
|
return(0);
|
|
}
|
|
BIO_set_fp(b,fp,BIO_NOCLOSE);
|
|
ret=PEM_write_bio(b, name, header, data,len);
|
|
BIO_free(b);
|
|
return(ret);
|
|
}
|
|
#endif
|
|
|
|
int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data,
|
|
long len)
|
|
{
|
|
int nlen,n,i,j,outl;
|
|
unsigned char *buf;
|
|
EVP_ENCODE_CTX ctx;
|
|
int reason=ERR_R_BUF_LIB;
|
|
|
|
EVP_EncodeInit(&ctx);
|
|
nlen=strlen(name);
|
|
|
|
if ( (BIO_write(bp,"-----BEGIN ",11) != 11) ||
|
|
(BIO_write(bp,name,nlen) != nlen) ||
|
|
(BIO_write(bp,"-----\n",6) != 6))
|
|
goto err;
|
|
|
|
i=strlen(header);
|
|
if (i > 0)
|
|
{
|
|
if ( (BIO_write(bp,header,i) != i) ||
|
|
(BIO_write(bp,"\n",1) != 1))
|
|
goto err;
|
|
}
|
|
|
|
buf=(unsigned char *)OPENSSL_malloc(PEM_BUFSIZE*8);
|
|
if (buf == NULL)
|
|
{
|
|
reason=ERR_R_MALLOC_FAILURE;
|
|
goto err;
|
|
}
|
|
|
|
i=j=0;
|
|
while (len > 0)
|
|
{
|
|
n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len);
|
|
EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n);
|
|
if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl))
|
|
goto err;
|
|
i+=outl;
|
|
len-=n;
|
|
j+=n;
|
|
}
|
|
EVP_EncodeFinal(&ctx,buf,&outl);
|
|
if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err;
|
|
OPENSSL_free(buf);
|
|
if ( (BIO_write(bp,"-----END ",9) != 9) ||
|
|
(BIO_write(bp,name,nlen) != nlen) ||
|
|
(BIO_write(bp,"-----\n",6) != 6))
|
|
goto err;
|
|
return(i+outl);
|
|
err:
|
|
PEMerr(PEM_F_PEM_WRITE_BIO,reason);
|
|
return(0);
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_FP_API
|
|
int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
|
|
long *len)
|
|
{
|
|
BIO *b;
|
|
int ret;
|
|
|
|
if ((b=BIO_new(BIO_s_file())) == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB);
|
|
return(0);
|
|
}
|
|
BIO_set_fp(b,fp,BIO_NOCLOSE);
|
|
ret=PEM_read_bio(b, name, header, data,len);
|
|
BIO_free(b);
|
|
return(ret);
|
|
}
|
|
#endif
|
|
|
|
int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
|
|
long *len)
|
|
{
|
|
EVP_ENCODE_CTX ctx;
|
|
int end=0,i,k,bl=0,hl=0,nohead=0;
|
|
char buf[256];
|
|
BUF_MEM *nameB;
|
|
BUF_MEM *headerB;
|
|
BUF_MEM *dataB,*tmpB;
|
|
|
|
nameB=BUF_MEM_new();
|
|
headerB=BUF_MEM_new();
|
|
dataB=BUF_MEM_new();
|
|
if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL))
|
|
{
|
|
PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
|
|
return(0);
|
|
}
|
|
|
|
buf[254]='\0';
|
|
for (;;)
|
|
{
|
|
i=BIO_gets(bp,buf,254);
|
|
|
|
if (i <= 0)
|
|
{
|
|
PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE);
|
|
goto err;
|
|
}
|
|
|
|
while ((i >= 0) && (buf[i] <= ' ')) i--;
|
|
buf[++i]='\n'; buf[++i]='\0';
|
|
|
|
if (strncmp(buf,"-----BEGIN ",11) == 0)
|
|
{
|
|
i=strlen(&(buf[11]));
|
|
|
|
if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0)
|
|
continue;
|
|
if (!BUF_MEM_grow(nameB,i+9))
|
|
{
|
|
PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
memcpy(nameB->data,&(buf[11]),i-6);
|
|
nameB->data[i-6]='\0';
|
|
break;
|
|
}
|
|
}
|
|
hl=0;
|
|
if (!BUF_MEM_grow(headerB,256))
|
|
{ PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
|
|
headerB->data[0]='\0';
|
|
for (;;)
|
|
{
|
|
i=BIO_gets(bp,buf,254);
|
|
if (i <= 0) break;
|
|
|
|
while ((i >= 0) && (buf[i] <= ' ')) i--;
|
|
buf[++i]='\n'; buf[++i]='\0';
|
|
|
|
if (buf[0] == '\n') break;
|
|
if (!BUF_MEM_grow(headerB,hl+i+9))
|
|
{ PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
|
|
if (strncmp(buf,"-----END ",9) == 0)
|
|
{
|
|
nohead=1;
|
|
break;
|
|
}
|
|
memcpy(&(headerB->data[hl]),buf,i);
|
|
headerB->data[hl+i]='\0';
|
|
hl+=i;
|
|
}
|
|
|
|
bl=0;
|
|
if (!BUF_MEM_grow(dataB,1024))
|
|
{ PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
|
|
dataB->data[0]='\0';
|
|
if (!nohead)
|
|
{
|
|
for (;;)
|
|
{
|
|
i=BIO_gets(bp,buf,254);
|
|
if (i <= 0) break;
|
|
|
|
while ((i >= 0) && (buf[i] <= ' ')) i--;
|
|
buf[++i]='\n'; buf[++i]='\0';
|
|
|
|
if (i != 65) end=1;
|
|
if (strncmp(buf,"-----END ",9) == 0)
|
|
break;
|
|
if (i > 65) break;
|
|
if (!BUF_MEM_grow(dataB,i+bl+9))
|
|
{
|
|
PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
memcpy(&(dataB->data[bl]),buf,i);
|
|
dataB->data[bl+i]='\0';
|
|
bl+=i;
|
|
if (end)
|
|
{
|
|
buf[0]='\0';
|
|
i=BIO_gets(bp,buf,254);
|
|
if (i <= 0) break;
|
|
|
|
while ((i >= 0) && (buf[i] <= ' ')) i--;
|
|
buf[++i]='\n'; buf[++i]='\0';
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
tmpB=headerB;
|
|
headerB=dataB;
|
|
dataB=tmpB;
|
|
bl=hl;
|
|
}
|
|
i=strlen(nameB->data);
|
|
if ( (strncmp(buf,"-----END ",9) != 0) ||
|
|
(strncmp(nameB->data,&(buf[9]),i) != 0) ||
|
|
(strncmp(&(buf[9+i]),"-----\n",6) != 0))
|
|
{
|
|
PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE);
|
|
goto err;
|
|
}
|
|
|
|
EVP_DecodeInit(&ctx);
|
|
i=EVP_DecodeUpdate(&ctx,
|
|
(unsigned char *)dataB->data,&bl,
|
|
(unsigned char *)dataB->data,bl);
|
|
if (i < 0)
|
|
{
|
|
PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
|
|
goto err;
|
|
}
|
|
i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k);
|
|
if (i < 0)
|
|
{
|
|
PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
|
|
goto err;
|
|
}
|
|
bl+=k;
|
|
|
|
if (bl == 0) goto err;
|
|
*name=nameB->data;
|
|
*header=headerB->data;
|
|
*data=(unsigned char *)dataB->data;
|
|
*len=bl;
|
|
OPENSSL_free(nameB);
|
|
OPENSSL_free(headerB);
|
|
OPENSSL_free(dataB);
|
|
return(1);
|
|
err:
|
|
BUF_MEM_free(nameB);
|
|
BUF_MEM_free(headerB);
|
|
BUF_MEM_free(dataB);
|
|
return(0);
|
|
}
|
|
|
|
/* 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_PEM_WRITE_BIO_PKCS8PRIVATEKEY,
|
|
PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
|
|
return 0;
|
|
}
|
|
if(enc || (nid != -1)) {
|
|
if(!kstr) {
|
|
if(!cb) klen = def_callback(buf, PEM_BUFSIZE, 1, u);
|
|
else klen = cb(buf, PEM_BUFSIZE, 1, u);
|
|
if(klen <= 0) {
|
|
PEMerr(PEM_F_PEM_WRITE_BIO_PKCS8PRIVATEKEY,
|
|
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) memset(buf, 0, 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;
|
|
}
|
|
}
|
|
|
|
/* Finally the DER version to read PKCS#8 encrypted private keys. It has to be
|
|
* here to access the default callback.
|
|
*/
|
|
|
|
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=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_PEM_F_DO_PK8KEY_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
|