sl@0: /* apps/enc.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include <stdlib.h>
sl@0: #include <string.h>
sl@0: #include "apps.h"
sl@0: #include <openssl/bio.h>
sl@0: #include <openssl/err.h>
sl@0: #include <openssl/evp.h>
sl@0: #include <openssl/objects.h>
sl@0: #include <openssl/x509.h>
sl@0: #include <openssl/rand.h>
sl@0: #include <openssl/pem.h>
sl@0: #include <ctype.h>
sl@0: 
sl@0: int set_hex(char *in,unsigned char *out,int size);
sl@0: #undef SIZE
sl@0: #undef BSIZE
sl@0: #undef PROG
sl@0: 
sl@0: #define SIZE	(512)
sl@0: #define BSIZE	(8*1024)
sl@0: #define	PROG	enc_main
sl@0: 
sl@0: 
sl@0: 
sl@0: static void show_ciphers(const OBJ_NAME *name,void *bio_)
sl@0: 	{
sl@0: 	BIO *bio=bio_;
sl@0: 	static int n;
sl@0: 
sl@0: 	if(!islower((unsigned char)*name->name))
sl@0: 		return;
sl@0: 
sl@0: 	BIO_printf(bio,"-%-25s",name->name);
sl@0: 	if(++n == 3)
sl@0: 		{
sl@0: 		BIO_printf(bio,"\n");
sl@0: 		n=0;
sl@0: 		}
sl@0: 	else
sl@0: 		BIO_printf(bio," ");
sl@0: 	}
sl@0: 
sl@0: int MAIN(int, char **);
sl@0: 
sl@0: int MAIN(int argc, char **argv)
sl@0: 	{
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 	ENGINE *e = NULL;
sl@0: #endif
sl@0: 	static const char magic[]="Salted__";
sl@0: 	char mbuf[sizeof magic-1];
sl@0: 	char *strbuf=NULL;
sl@0: 	unsigned char *buff=NULL,*bufsize=NULL;
sl@0: 	int bsize=BSIZE,verbose=0;
sl@0: 	int ret=1,inl;
sl@0: 	int nopad = 0;
sl@0: 	unsigned char key[EVP_MAX_KEY_LENGTH],iv[EVP_MAX_IV_LENGTH];
sl@0: 	unsigned char salt[PKCS5_SALT_LEN];
sl@0: 	char *str=NULL, *passarg = NULL, *pass = NULL;
sl@0: 	char *hkey=NULL,*hiv=NULL,*hsalt = NULL;
sl@0: 	char *md=NULL;
sl@0: 	int enc=1,printkey=0,i,base64=0;
sl@0: 	int debug=0,olb64=0,nosalt=0;
sl@0: 	const EVP_CIPHER *cipher=NULL,*c;
sl@0: 	EVP_CIPHER_CTX *ctx = NULL;
sl@0: 	char *inf=NULL,*outf=NULL;
sl@0: 	BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
sl@0: #define PROG_NAME_SIZE  39
sl@0: 	char pname[PROG_NAME_SIZE+1];
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 	char *engine = NULL;
sl@0: #endif
sl@0: 	const EVP_MD *dgst=NULL;
sl@0: 
sl@0: 	apps_startup();
sl@0: 
sl@0: 	if (bio_err == NULL)
sl@0: 		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
sl@0: 			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
sl@0: 
sl@0: 
sl@0: 	if (!load_config(bio_err, NULL))
sl@0: 		goto end;
sl@0: 
sl@0: 	/* first check the program name */
sl@0: 	program_name(argv[0],pname,sizeof pname);
sl@0: 	if (strcmp(pname,"base64") == 0)
sl@0: 		base64=1;
sl@0: 
sl@0: 	cipher=EVP_get_cipherbyname(pname);
sl@0: 	if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0))
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
sl@0: 		goto bad;
sl@0: 		}
sl@0: 
sl@0: 	argc--;
sl@0: 	argv++;
sl@0: 	while (argc >= 1)
sl@0: 		{
sl@0: 		if	(strcmp(*argv,"-e") == 0)
sl@0: 			enc=1;
sl@0: 		else if (strcmp(*argv,"-in") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			inf= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-out") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			outf= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-pass") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			passarg= *(++argv);
sl@0: 			}
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 		else if (strcmp(*argv,"-engine") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			engine= *(++argv);
sl@0: 			}
sl@0: #endif
sl@0: 		else if	(strcmp(*argv,"-d") == 0)
sl@0: 			enc=0;
sl@0: 		else if	(strcmp(*argv,"-p") == 0)
sl@0: 			printkey=1;
sl@0: 		else if	(strcmp(*argv,"-v") == 0)
sl@0: 			verbose=1;
sl@0: 		else if	(strcmp(*argv,"-nopad") == 0)
sl@0: 			nopad=1;
sl@0: 		else if	(strcmp(*argv,"-salt") == 0)
sl@0: 			nosalt=0;
sl@0: 		else if	(strcmp(*argv,"-nosalt") == 0)
sl@0: 			nosalt=1;
sl@0: 		else if	(strcmp(*argv,"-debug") == 0)
sl@0: 			debug=1;
sl@0: 		else if	(strcmp(*argv,"-P") == 0)
sl@0: 			printkey=2;
sl@0: 		else if	(strcmp(*argv,"-A") == 0)
sl@0: 			olb64=1;
sl@0: 		else if	(strcmp(*argv,"-a") == 0)
sl@0: 			base64=1;
sl@0: 		else if	(strcmp(*argv,"-base64") == 0)
sl@0: 			base64=1;
sl@0: 		else if (strcmp(*argv,"-bufsize") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			bufsize=(unsigned char *)*(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-k") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			str= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-kfile") == 0)
sl@0: 			{
sl@0: 			static char buf[128];
sl@0: 			FILE *infile;
sl@0: 			char *file;
sl@0: 
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			file= *(++argv);
sl@0: 			infile=fopen(file,"r");
sl@0: 			if (infile == NULL)
sl@0: 				{
sl@0: 				BIO_printf(bio_err,"unable to read key from '%s'\n",
sl@0: 					file);
sl@0: 				goto bad;
sl@0: 				}
sl@0: 			buf[0]='\0';
sl@0: 			fgets(buf,sizeof buf,infile);
sl@0: 			fclose(infile);
sl@0: 			i=strlen(buf);
sl@0: 			if ((i > 0) &&
sl@0: 				((buf[i-1] == '\n') || (buf[i-1] == '\r')))
sl@0: 				buf[--i]='\0';
sl@0: 			if ((i > 0) &&
sl@0: 				((buf[i-1] == '\n') || (buf[i-1] == '\r')))
sl@0: 				buf[--i]='\0';
sl@0: 			if (i < 1)
sl@0: 				{
sl@0: 				BIO_printf(bio_err,"zero length password\n");
sl@0: 				goto bad;
sl@0: 				}
sl@0: 			str=buf;
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-K") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			hkey= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-S") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			hsalt= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-iv") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			hiv= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-md") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			md= *(++argv);
sl@0: 			}
sl@0: 		else if	((argv[0][0] == '-') &&
sl@0: 			((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL))
sl@0: 			{
sl@0: 			cipher=c;
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-none") == 0)
sl@0: 			cipher=NULL;
sl@0: 		else
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"unknown option '%s'\n",*argv);
sl@0: bad:
sl@0: 			BIO_printf(bio_err,"options are\n");
sl@0: 			BIO_printf(bio_err,"%-14s input file\n","-in <file>");
sl@0: 			BIO_printf(bio_err,"%-14s output file\n","-out <file>");
sl@0: 			BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>");
sl@0: 			BIO_printf(bio_err,"%-14s encrypt\n","-e");
sl@0: 			BIO_printf(bio_err,"%-14s decrypt\n","-d");
sl@0: 			BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
sl@0: 			BIO_printf(bio_err,"%-14s passphrase is the next argument\n","-k");
sl@0: 			BIO_printf(bio_err,"%-14s passphrase is the first line of the file argument\n","-kfile");
sl@0: 			BIO_printf(bio_err,"%-14s the next argument is the md to use to create a key\n","-md");
sl@0: 			BIO_printf(bio_err,"%-14s   from a passphrase.  One of md2, md5, sha or sha1\n","");
sl@0: 			BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");
sl@0: 			BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
sl@0: 			BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0: 			BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e");
sl@0: #endif
sl@0: 
sl@0: 			BIO_printf(bio_err,"Cipher Types\n");
sl@0: 			OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
sl@0: 					       show_ciphers,
sl@0: 					       bio_err);
sl@0: 			BIO_printf(bio_err,"\n");
sl@0: 
sl@0: 			goto end;
sl@0: 			}
sl@0: 		argc--;
sl@0: 		argv++;
sl@0: 		}
sl@0: 
sl@0: #ifndef OPENSSL_NO_ENGINE
sl@0:         e = setup_engine(bio_err, engine, 0);
sl@0: #endif
sl@0: 
sl@0: 	if (md && (dgst=EVP_get_digestbyname(md)) == NULL)
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"%s is an unsupported message digest type\n",md);
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	if (dgst == NULL)
sl@0: 		{
sl@0: 		dgst = EVP_md5();
sl@0: 		}
sl@0: 
sl@0: 	if (bufsize != NULL)
sl@0: 		{
sl@0: 		unsigned long n;
sl@0: 
sl@0: 		for (n=0; *bufsize; bufsize++)
sl@0: 			{
sl@0: 			i= *bufsize;
sl@0: 			if ((i <= '9') && (i >= '0'))
sl@0: 				n=n*10+i-'0';
sl@0: 			else if (i == 'k')
sl@0: 				{
sl@0: 				n*=1024;
sl@0: 				bufsize++;
sl@0: 				break;
sl@0: 				}
sl@0: 			}
sl@0: 		if (*bufsize != '\0')
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
sl@0: 			goto end;
sl@0: 			}
sl@0: 
sl@0: 		/* It must be large enough for a base64 encoded line */
sl@0: 		if (base64 && n < 80) n=80;
sl@0: 
sl@0: 		bsize=(int)n;
sl@0: 		if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
sl@0: 		}
sl@0: 
sl@0: 	strbuf=OPENSSL_malloc(SIZE);
sl@0: 	buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
sl@0: 	if ((buff == NULL) || (strbuf == NULL))
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize));
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	in=BIO_new(BIO_s_file());
sl@0: 	out=BIO_new(BIO_s_file());
sl@0: 	if ((in == NULL) || (out == NULL))
sl@0: 		{
sl@0: 		ERR_print_errors(bio_err);
sl@0: 		goto end;
sl@0: 		}
sl@0: 	if (debug)
sl@0: 		{
sl@0: 		BIO_set_callback(in,BIO_debug_callback);
sl@0: 		BIO_set_callback(out,BIO_debug_callback);
sl@0: 		BIO_set_callback_arg(in,(char *)bio_err);
sl@0: 		BIO_set_callback_arg(out,(char *)bio_err);
sl@0: 		}
sl@0: 
sl@0: 	if (inf == NULL)
sl@0: 	        {
sl@0: 		if (bufsize != NULL)
sl@0: 			setvbuf(stdin, (char *)NULL, _IONBF, 0);
sl@0: 		BIO_set_fp(in,stdin,BIO_NOCLOSE);
sl@0: 	        }
sl@0: 	else
sl@0: 		{
sl@0: 		if (BIO_read_filename(in,inf) <= 0)
sl@0: 			{
sl@0: 			perror(inf);
sl@0: 			goto end;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if(!str && passarg) {
sl@0: 		if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
sl@0: 			BIO_printf(bio_err, "Error getting password\n");
sl@0: 			goto end;
sl@0: 		}
sl@0: 		str = pass;
sl@0: 	}
sl@0: 
sl@0: 	if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
sl@0: 		{
sl@0: 		for (;;)
sl@0: 			{
sl@0: 			char buf[200];
sl@0: 
sl@0: 			BIO_snprintf(buf,sizeof buf,"enter %s %s password:",
sl@0: 				     OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
sl@0: 				     (enc)?"encryption":"decryption");
sl@0: 			strbuf[0]='\0';
sl@0: 			i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
sl@0: 			if (i == 0)
sl@0: 				{
sl@0: 				if (strbuf[0] == '\0')
sl@0: 					{
sl@0: 					ret=1;
sl@0: 					goto end;
sl@0: 					}
sl@0: 				str=strbuf;
sl@0: 				break;
sl@0: 				}
sl@0: 			if (i < 0)
sl@0: 				{
sl@0: 				BIO_printf(bio_err,"bad password read\n");
sl@0: 				goto end;
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 
sl@0: 	if (outf == NULL)
sl@0: 		{
sl@0: 		BIO_set_fp(out,stdout,BIO_NOCLOSE);
sl@0: 		if (bufsize != NULL)
sl@0: 			setvbuf(stdout, (char *)NULL, _IONBF, 0);
sl@0: #ifdef OPENSSL_SYS_VMS
sl@0: 		{
sl@0: 		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
sl@0: 		out = BIO_push(tmpbio, out);
sl@0: 		}
sl@0: #endif
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		if (BIO_write_filename(out,outf) <= 0)
sl@0: 			{
sl@0: 			perror(outf);
sl@0: 			goto end;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	rbio=in;
sl@0: 	wbio=out;
sl@0: 
sl@0: 	if (base64)
sl@0: 		{
sl@0: 		if ((b64=BIO_new(BIO_f_base64())) == NULL)
sl@0: 			goto end;
sl@0: 		if (debug)
sl@0: 			{
sl@0: 			BIO_set_callback(b64,BIO_debug_callback);
sl@0: 			BIO_set_callback_arg(b64,(char *)bio_err);
sl@0: 			}
sl@0: 		if (olb64)
sl@0: 			BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
sl@0: 		if (enc)
sl@0: 			wbio=BIO_push(b64,wbio);
sl@0: 		else
sl@0: 			rbio=BIO_push(b64,rbio);
sl@0: 		}
sl@0: 
sl@0: 	if (cipher != NULL)
sl@0: 		{
sl@0: 		/* Note that str is NULL if a key was passed on the command
sl@0: 		 * line, so we get no salt in that case. Is this a bug?
sl@0: 		 */
sl@0: 		if (str != NULL)
sl@0: 			{
sl@0: 			/* Salt handling: if encrypting generate a salt and
sl@0: 			 * write to output BIO. If decrypting read salt from
sl@0: 			 * input BIO.
sl@0: 			 */
sl@0: 			unsigned char *sptr;
sl@0: 			if(nosalt) sptr = NULL;
sl@0: 			else {
sl@0: 				if(enc) {
sl@0: 					if(hsalt) {
sl@0: 						if(!set_hex(hsalt,salt,sizeof salt)) {
sl@0: 							BIO_printf(bio_err,
sl@0: 								"invalid hex salt value\n");
sl@0: 							goto end;
sl@0: 						}
sl@0: 					} else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
sl@0: 						goto end;
sl@0: 					/* If -P option then don't bother writing */
sl@0: 					if((printkey != 2)
sl@0: 					   && (BIO_write(wbio,magic,
sl@0: 							 sizeof magic-1) != sizeof magic-1
sl@0: 					       || BIO_write(wbio,
sl@0: 							    (char *)salt,
sl@0: 							    sizeof salt) != sizeof salt)) {
sl@0: 						BIO_printf(bio_err,"error writing output file\n");
sl@0: 						goto end;
sl@0: 					}
sl@0: 				} else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf
sl@0: 					  || BIO_read(rbio,
sl@0: 						      (unsigned char *)salt,
sl@0: 				    sizeof salt) != sizeof salt) {
sl@0: 					BIO_printf(bio_err,"error reading input file\n");
sl@0: 					goto end;
sl@0: 				} else if(memcmp(mbuf,magic,sizeof magic-1)) {
sl@0: 				    BIO_printf(bio_err,"bad magic number\n");
sl@0: 				    goto end;
sl@0: 				}
sl@0: 
sl@0: 				sptr = salt;
sl@0: 			}
sl@0: 
sl@0: 			EVP_BytesToKey(cipher,dgst,sptr,
sl@0: 				(unsigned char *)str,
sl@0: 				strlen(str),1,key,iv);
sl@0: 			/* zero the complete buffer or the string
sl@0: 			 * passed from the command line
sl@0: 			 * bug picked up by
sl@0: 			 * Larry J. Hughes Jr. <hughes@indiana.edu> */
sl@0: 			if (str == strbuf)
sl@0: 				OPENSSL_cleanse(str,SIZE);
sl@0: 			else
sl@0: 				OPENSSL_cleanse(str,strlen(str));
sl@0: 			}
sl@0: 		if ((hiv != NULL) && !set_hex(hiv,iv,sizeof iv))
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"invalid hex iv value\n");
sl@0: 			goto end;
sl@0: 			}
sl@0: 		if ((hiv == NULL) && (str == NULL))
sl@0: 			{
sl@0: 			/* No IV was explicitly set and no IV was generated
sl@0: 			 * during EVP_BytesToKey. Hence the IV is undefined,
sl@0: 			 * making correct decryption impossible. */
sl@0: 			BIO_printf(bio_err, "iv undefined\n");
sl@0: 			goto end;
sl@0: 			}
sl@0: 		if ((hkey != NULL) && !set_hex(hkey,key,sizeof key))
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"invalid hex key value\n");
sl@0: 			goto end;
sl@0: 			}
sl@0: 
sl@0: 		if ((benc=BIO_new(BIO_f_cipher())) == NULL)
sl@0: 			goto end;
sl@0: 
sl@0: 		/* Since we may be changing parameters work on the encryption
sl@0: 		 * context rather than calling BIO_set_cipher().
sl@0: 		 */
sl@0: 
sl@0: 		BIO_get_cipher_ctx(benc, &ctx);
sl@0: 		if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc))
sl@0: 			{
sl@0: 			BIO_printf(bio_err, "Error setting cipher %s\n",
sl@0: 				EVP_CIPHER_name(cipher));
sl@0: 			ERR_print_errors(bio_err);
sl@0: 			goto end;
sl@0: 			}
sl@0: 
sl@0: 		if (nopad)
sl@0: 			EVP_CIPHER_CTX_set_padding(ctx, 0);
sl@0: 
sl@0: 		if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc))
sl@0: 			{
sl@0: 			BIO_printf(bio_err, "Error setting cipher %s\n",
sl@0: 				EVP_CIPHER_name(cipher));
sl@0: 			ERR_print_errors(bio_err);
sl@0: 			goto end;
sl@0: 			}
sl@0: 
sl@0: 		if (debug)
sl@0: 			{
sl@0: 			BIO_set_callback(benc,BIO_debug_callback);
sl@0: 			BIO_set_callback_arg(benc,(char *)bio_err);
sl@0: 			}
sl@0: 
sl@0: 		if (printkey)
sl@0: 			{
sl@0: 			if (!nosalt)
sl@0: 				{
sl@0: 				printf("salt=");
sl@0: 				for (i=0; i<(int)sizeof(salt); i++)
sl@0: 					printf("%02X",salt[i]);
sl@0: 				printf("\n");
sl@0: 				}
sl@0: 			if (cipher->key_len > 0)
sl@0: 				{
sl@0: 				printf("key=");
sl@0: 				for (i=0; i<cipher->key_len; i++)
sl@0: 					printf("%02X",key[i]);
sl@0: 				printf("\n");
sl@0: 				}
sl@0: 			if (cipher->iv_len > 0)
sl@0: 				{
sl@0: 				printf("iv =");
sl@0: 				for (i=0; i<cipher->iv_len; i++)
sl@0: 					printf("%02X",iv[i]);
sl@0: 				printf("\n");
sl@0: 				}
sl@0: 			if (printkey == 2)
sl@0: 				{
sl@0: 				ret=0;
sl@0: 				goto end;
sl@0: 				}
sl@0: 
sl@0: 			
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	/* Only encrypt/decrypt as we write the file */
sl@0: 	if (benc != NULL)
sl@0: 		wbio=BIO_push(benc,wbio);
sl@0: 
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		inl=BIO_read(rbio,(char *)buff,bsize);
sl@0: 		if (inl <= 0) break;
sl@0: 		if (BIO_write(wbio,(char *)buff,inl) != inl)
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"error writing output file\n");
sl@0: 			goto end;
sl@0: 			}
sl@0: 		}
sl@0: 	if (!BIO_flush(wbio))
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"bad decrypt\n");
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	ret=0;
sl@0: 	if (verbose)
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"bytes read   :%8ld\n",BIO_number_read(in));
sl@0: 		BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
sl@0: 		}
sl@0: end:
sl@0: 	ERR_print_errors(bio_err);
sl@0: 	if (strbuf != NULL) OPENSSL_free(strbuf);
sl@0: 	if (buff != NULL) OPENSSL_free(buff);
sl@0: 	if (in != NULL) BIO_free(in);
sl@0: 	if (out != NULL) BIO_free_all(out);
sl@0: 	if (benc != NULL) BIO_free(benc);
sl@0: 	if (b64 != NULL) BIO_free(b64);
sl@0: 	if(pass) OPENSSL_free(pass);
sl@0: 	apps_shutdown();
sl@0: 	OPENSSL_EXIT(ret);
sl@0: 	}
sl@0: 
sl@0: int set_hex(char *in, unsigned char *out, int size)
sl@0: 	{
sl@0: 	int i,n;
sl@0: 	unsigned char j;
sl@0: 
sl@0: 	n=strlen(in);
sl@0: 	if (n > (size*2))
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"hex string is too long\n");
sl@0: 		return(0);
sl@0: 		}
sl@0: 	memset(out,0,size);
sl@0: 	for (i=0; i<n; i++)
sl@0: 		{
sl@0: 		j=(unsigned char)*in;
sl@0: 		*(in++)='\0';
sl@0: 		if (j == 0) break;
sl@0: 		if ((j >= '0') && (j <= '9'))
sl@0: 			j-='0';
sl@0: 		else if ((j >= 'A') && (j <= 'F'))
sl@0: 			j=j-'A'+10;
sl@0: 		else if ((j >= 'a') && (j <= 'f'))
sl@0: 			j=j-'a'+10;
sl@0: 		else
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"non-hex digit\n");
sl@0: 			return(0);
sl@0: 			}
sl@0: 		if (i&1)
sl@0: 			out[i/2]|=j;
sl@0: 		else
sl@0: 			out[i/2]=(j<<4);
sl@0: 		}
sl@0: 	return(1);
sl@0: 	}