762 lines
17 KiB
C
762 lines
17 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 "buffer.h"
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#include "objects.h"
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#include "evp.h"
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#include "rand.h"
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#include "x509.h"
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#include "pem.h"
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#ifndef NO_DES
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#include "des.h"
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#endif
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char *PEM_version="PEM part of SSLeay 0.9.0b 29-Jun-1998";
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#define MIN_LENGTH 4
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/* PEMerr(PEM_F_PEM_WRITE_BIO,ERR_R_MALLOC_FAILURE);
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* PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
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*/
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#ifndef NOPROTO
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static int def_callback(char *buf, int num, int w);
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static int load_iv(unsigned char **fromp,unsigned char *to, int num);
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#else
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static int def_callback();
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static int load_iv();
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#endif
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static int def_callback(buf, num, w)
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char *buf;
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int num;
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int w;
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{
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#ifdef 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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char *prompt;
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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(buf, type)
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char *buf;
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int type;
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{
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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(buf, type, len, str)
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char *buf;
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char *type;
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int len;
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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 NO_FP_API
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char *PEM_ASN1_read(d2i,name,fp, x, cb)
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char *(*d2i)();
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char *name;
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FILE *fp;
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char **x;
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int (*cb)();
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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);
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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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char *PEM_ASN1_read_bio(d2i,name,bp, x, cb)
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char *(*d2i)();
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char *name;
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BIO *bp;
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char **x;
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int (*cb)();
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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)) return(NULL);
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if ( (strcmp(nm,name) == 0) ||
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((strcmp(nm,PEM_STRING_RSA) == 0) &&
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(strcmp(name,PEM_STRING_EVP_PKEY) == 0)) ||
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((strcmp(nm,PEM_STRING_DSA) == 0) &&
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(strcmp(name,PEM_STRING_EVP_PKEY) == 0)) ||
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((strcmp(nm,PEM_STRING_X509_OLD) == 0) &&
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(strcmp(name,PEM_STRING_X509) == 0)) ||
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((strcmp(nm,PEM_STRING_X509_REQ_OLD) == 0) &&
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(strcmp(name,PEM_STRING_X509_REQ) == 0))
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)
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break;
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Free(nm);
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Free(header);
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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)) goto err;
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p=data;
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if (strcmp(name,PEM_STRING_EVP_PKEY) == 0)
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{
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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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}
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else
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ret=d2i(x,&p,len);
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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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Free(nm);
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Free(header);
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Free(data);
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return(ret);
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}
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#ifndef NO_FP_API
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int PEM_ASN1_write(i2d,name,fp, x, enc, kstr, klen, callback)
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int (*i2d)();
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char *name;
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FILE *fp;
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char *x;
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EVP_CIPHER *enc;
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unsigned char *kstr;
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int klen;
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int (*callback)();
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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);
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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(i2d,name,bp, x, enc, kstr, klen, callback)
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int (*i2d)();
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char *name;
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BIO *bp;
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char *x;
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EVP_CIPHER *enc;
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unsigned char *kstr;
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int klen;
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int (*callback)();
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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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char *objstr=NULL;
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#define PEM_BUFSIZE 1024
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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 *)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);
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else
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klen=(*callback)(buf,PEM_BUFSIZE,1);
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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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kstr=(unsigned char *)buf;
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}
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RAND_seed(data,i);/* put in the RSA key. */
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RAND_bytes(iv,8); /* Generate a salt */
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/* The 'iv' is used as the iv and as a salt. It is
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* 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);
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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);
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/* 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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}
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else
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{
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ret=1;
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buf[0]='\0';
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}
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i=PEM_write_bio(bp,name,buf,data,i);
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if (i <= 0) ret=0;
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err:
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memset(key,0,sizeof(key));
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memset(iv,0,sizeof(iv));
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memset((char *)&ctx,0,sizeof(ctx));
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memset(buf,0,PEM_BUFSIZE);
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memset(data,0,(unsigned int)dsize);
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Free(data);
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return(ret);
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}
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int PEM_do_header(cipher, data, plen, callback)
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EVP_CIPHER_INFO *cipher;
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unsigned char *data;
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long *plen;
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int (*callback)();
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{
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int i,j,o,klen;
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long len;
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EVP_CIPHER_CTX ctx;
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unsigned char key[EVP_MAX_KEY_LENGTH];
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char buf[PEM_BUFSIZE];
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len= *plen;
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if (cipher->cipher == NULL) return(1);
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if (callback == NULL)
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klen=def_callback(buf,PEM_BUFSIZE,0);
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else
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klen=callback(buf,PEM_BUFSIZE,0);
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if (klen <= 0)
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{
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PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
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return(0);
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}
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EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
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(unsigned char *)buf,klen,1,key,NULL);
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j=(int)len;
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EVP_DecryptInit(&ctx,cipher->cipher,key,&(cipher->iv[0]));
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EVP_DecryptUpdate(&ctx,data,&i,data,j);
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o=EVP_DecryptFinal(&ctx,&(data[i]),&j);
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EVP_CIPHER_CTX_cleanup(&ctx);
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memset((char *)buf,0,sizeof(buf));
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memset((char *)key,0,sizeof(key));
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j+=i;
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if (!o)
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{
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PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
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return(0);
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}
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*plen=j;
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return(1);
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}
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int PEM_get_EVP_CIPHER_INFO(header,cipher)
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char *header;
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EVP_CIPHER_INFO *cipher;
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{
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int o;
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EVP_CIPHER *enc=NULL;
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char *p,c;
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cipher->cipher=NULL;
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if ((header == NULL) || (*header == '\0') || (*header == '\n'))
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return(1);
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if (strncmp(header,"Proc-Type: ",11) != 0)
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{ PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
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header+=11;
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if (*header != '4') return(0); header++;
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if (*header != ',') return(0); header++;
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if (strncmp(header,"ENCRYPTED",9) != 0)
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{ PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
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for (; (*header != '\n') && (*header != '\0'); header++)
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;
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if (*header == '\0')
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{ PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
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header++;
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if (strncmp(header,"DEK-Info: ",10) != 0)
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{ PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
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header+=10;
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p=header;
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for (;;)
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{
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c= *header;
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if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
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((c >= '0') && (c <= '9'))))
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break;
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header++;
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}
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*header='\0';
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o=OBJ_sn2nid(p);
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cipher->cipher=enc=EVP_get_cipherbyname(p);
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*header=c;
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header++;
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if (enc == NULL)
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{
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PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
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return(0);
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}
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if (!load_iv((unsigned char **)&header,&(cipher->iv[0]),8)) return(0);
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return(1);
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}
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static int load_iv(fromp,to,num)
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unsigned char **fromp,*to;
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int num;
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{
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int v,i;
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unsigned char *from;
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from= *fromp;
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for (i=0; i<num; i++) to[i]=0;
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num*=2;
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for (i=0; i<num; i++)
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{
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if ((*from >= '0') && (*from <= '9'))
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v= *from-'0';
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else if ((*from >= 'A') && (*from <= 'F'))
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v= *from-'A'+10;
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else if ((*from >= 'a') && (*from <= 'f'))
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v= *from-'a'+10;
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else
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{
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PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
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return(0);
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}
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from++;
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to[i/2]|=v<<(long)((!(i&1))*4);
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}
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*fromp=from;
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return(1);
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}
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#ifndef NO_FP_API
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int PEM_write(fp, name, header, data,len)
|
|
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(bp, name, header, data,len)
|
|
BIO *bp;
|
|
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 *)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;
|
|
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 NO_FP_API
|
|
int PEM_read(fp, name, header, data,len)
|
|
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(bp, name, header, data, len)
|
|
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;
|
|
}
|
|
strncpy(nameB->data,&(buf[11]),(unsigned int)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;
|
|
}
|
|
strncpy(&(headerB->data[hl]),buf,(unsigned int)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;
|
|
}
|
|
strncpy(&(dataB->data[bl]),buf,(unsigned int)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]),(unsigned int)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;
|
|
Free(nameB);
|
|
Free(headerB);
|
|
Free(dataB);
|
|
return(1);
|
|
err:
|
|
BUF_MEM_free(nameB);
|
|
BUF_MEM_free(headerB);
|
|
BUF_MEM_free(dataB);
|
|
return(0);
|
|
}
|