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-rw-r--r--apps/enc.c545
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diff --git a/apps/enc.c b/apps/enc.c
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+++ b/apps/enc.c
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+/* apps/enc.c */
+/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "apps.h"
+#include "bio.h"
+#include "err.h"
+#include "evp.h"
+#include "objects.h"
+#include "x509.h"
+#ifdef NO_MD5
+#include "md5.h"
+#endif
+#include "pem.h"
+
+#ifndef NOPROTO
+int set_hex(char *in,unsigned char *out,int size);
+#else
+int set_hex();
+#endif
+
+#undef SIZE
+#undef BSIZE
+#undef PROG
+
+#define SIZE (512)
+#define BSIZE (8*1024)
+#define PROG enc_main
+
+int MAIN(argc,argv)
+int argc;
+char **argv;
+ {
+ char *strbuf=NULL;
+ unsigned char *buff=NULL,*bufsize=NULL;
+ int bsize=BSIZE,verbose=0;
+ int ret=1,inl;
+ unsigned char key[24],iv[MD5_DIGEST_LENGTH];
+ char *str=NULL;
+ char *hkey=NULL,*hiv=NULL;
+ int enc=1,printkey=0,i,base64=0;
+ int debug=0;
+ EVP_CIPHER *cipher=NULL,*c;
+ char *inf=NULL,*outf=NULL;
+ BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
+#define PROG_NAME_SIZE 16
+ char pname[PROG_NAME_SIZE];
+
+ apps_startup();
+
+ if (bio_err == NULL)
+ if ((bio_err=BIO_new(BIO_s_file())) != NULL)
+ BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
+
+ /* first check the program name */
+ program_name(argv[0],pname,PROG_NAME_SIZE);
+ if (strcmp(pname,"base64") == 0)
+ base64=1;
+
+ cipher=EVP_get_cipherbyname(pname);
+ if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0))
+ {
+ BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
+ goto bad;
+ }
+
+ argc--;
+ argv++;
+ while (argc >= 1)
+ {
+ if (strcmp(*argv,"-e") == 0)
+ enc=1;
+ else if (strcmp(*argv,"-in") == 0)
+ {
+ if (--argc < 1) goto bad;
+ inf= *(++argv);
+ }
+ else if (strcmp(*argv,"-out") == 0)
+ {
+ if (--argc < 1) goto bad;
+ outf= *(++argv);
+ }
+ else if (strcmp(*argv,"-d") == 0)
+ enc=0;
+ else if (strcmp(*argv,"-p") == 0)
+ printkey=1;
+ else if (strcmp(*argv,"-v") == 0)
+ verbose=1;
+ else if ((strcmp(*argv,"-debug") == 0) ||
+ (strcmp(*argv,"-d") == 0))
+ debug=1;
+ else if (strcmp(*argv,"-P") == 0)
+ printkey=2;
+ else if (strcmp(*argv,"-a") == 0)
+ base64=1;
+ else if (strcmp(*argv,"-base64") == 0)
+ base64=1;
+ else if (strcmp(*argv,"-bufsize") == 0)
+ {
+ if (--argc < 1) goto bad;
+ bufsize=(unsigned char *)*(++argv);
+ }
+ else if (strcmp(*argv,"-k") == 0)
+ {
+ if (--argc < 1) goto bad;
+ str= *(++argv);
+ }
+ else if (strcmp(*argv,"-kfile") == 0)
+ {
+ static char buf[128];
+ FILE *infile;
+ char *file;
+
+ if (--argc < 1) goto bad;
+ file= *(++argv);
+ infile=fopen(file,"r");
+ if (infile == NULL)
+ {
+ BIO_printf(bio_err,"unable to read key from '%s'\n",
+ file);
+ goto bad;
+ }
+ buf[0]='\0';
+ fgets(buf,128,infile);
+ fclose(infile);
+ i=strlen(buf);
+ if ((i > 0) &&
+ ((buf[i-1] == '\n') || (buf[i-1] == '\r')))
+ buf[--i]='\0';
+ if ((i > 0) &&
+ ((buf[i-1] == '\n') || (buf[i-1] == '\r')))
+ buf[--i]='\0';
+ if (i < 1)
+ {
+ BIO_printf(bio_err,"zero length password\n");
+ goto bad;
+ }
+ str=buf;
+ }
+ else if (strcmp(*argv,"-K") == 0)
+ {
+ if (--argc < 1) goto bad;
+ hkey= *(++argv);
+ }
+ else if (strcmp(*argv,"-iv") == 0)
+ {
+ if (--argc < 1) goto bad;
+ hiv= *(++argv);
+ }
+ else if ((argv[0][0] == '-') &&
+ ((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL))
+ {
+ cipher=c;
+ }
+ else if (strcmp(*argv,"-none") == 0)
+ cipher=NULL;
+ else
+ {
+ BIO_printf(bio_err,"unknown option '%s'\n",*argv);
+bad:
+ BIO_printf(bio_err,"options are\n");
+ BIO_printf(bio_err,"%-14s input file\n","-in <file>");
+ BIO_printf(bio_err,"%-14s output fileencrypt\n","-out <file>");
+ BIO_printf(bio_err,"%-14s encrypt\n","-e");
+ BIO_printf(bio_err,"%-14s decrypt\n","-d");
+ BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
+ BIO_printf(bio_err,"%-14s key is the next argument\n","-k");
+ BIO_printf(bio_err,"%-14s key is the first line of the file argument\n","-kfile");
+ BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");
+ BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
+ BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
+
+ BIO_printf(bio_err,"Cipher Types\n");
+ BIO_printf(bio_err,"des : 56 bit key DES encryption\n");
+ BIO_printf(bio_err,"des_ede :112 bit key ede DES encryption\n");
+ BIO_printf(bio_err,"des_ede3:168 bit key ede DES encryption\n");
+#ifndef NO_IDEA
+ BIO_printf(bio_err,"idea :128 bit key IDEA encryption\n");
+#endif
+#ifndef NO_RC4
+ BIO_printf(bio_err,"rc2 :128 bit key RC2 encryption\n");
+#endif
+#ifndef NO_BLOWFISH
+ BIO_printf(bio_err,"bf :128 bit key BlowFish encryption\n");
+#endif
+#ifndef NO_RC4
+ BIO_printf(bio_err," -%-5s :128 bit key RC4 encryption\n",
+ LN_rc4);
+#endif
+
+ BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
+ LN_des_ecb,LN_des_cbc,
+ LN_des_cfb64,LN_des_ofb64);
+ BIO_printf(bio_err," -%-4s (%s)\n",
+ "des", LN_des_cbc);
+
+ BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
+ LN_des_ede,LN_des_ede_cbc,
+ LN_des_ede_cfb64,LN_des_ede_ofb64);
+ BIO_printf(bio_err," -desx -none\n");
+
+
+ BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
+ LN_des_ede3,LN_des_ede3_cbc,
+ LN_des_ede3_cfb64,LN_des_ede3_ofb64);
+ BIO_printf(bio_err," -%-4s (%s)\n",
+ "des3", LN_des_ede3_cbc);
+
+#ifndef NO_IDEA
+ BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
+ LN_idea_ecb, LN_idea_cbc,
+ LN_idea_cfb64, LN_idea_ofb64);
+ BIO_printf(bio_err," -%-4s (%s)\n","idea",LN_idea_cbc);
+#endif
+#ifndef NO_RC2
+ BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
+ LN_rc2_ecb, LN_rc2_cbc,
+ LN_rc2_cfb64, LN_rc2_ofb64);
+ BIO_printf(bio_err," -%-4s (%s)\n","rc2", LN_rc2_cbc);
+#endif
+#ifndef NO_BLOWFISH
+ BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
+ LN_bf_ecb, LN_bf_cbc,
+ LN_bf_cfb64, LN_bf_ofb64);
+ BIO_printf(bio_err," -%-4s (%s)\n","bf", LN_bf_cbc);
+#endif
+ goto end;
+ }
+ argc--;
+ argv++;
+ }
+
+ if (bufsize != NULL)
+ {
+ unsigned long n;
+
+ for (n=0; *bufsize; bufsize++)
+ {
+ i= *bufsize;
+ if ((i <= '9') && (i >= '0'))
+ n=n*10+i-'0';
+ else if (i == 'k')
+ {
+ n*=1024;
+ bufsize++;
+ break;
+ }
+ }
+ if (*bufsize != '\0')
+ {
+ BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
+ goto end;
+ }
+
+ /* It must be large enough for a base64 encoded line */
+ if (n < 80) n=80;
+
+ bsize=(int)n;
+ if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
+ }
+
+ strbuf=Malloc(SIZE);
+ buff=(unsigned char *)Malloc(EVP_ENCODE_LENGTH(bsize));
+ if ((buff == NULL) || (strbuf == NULL))
+ {
+ BIO_printf(bio_err,"Malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize));
+ goto end;
+ }
+
+ in=BIO_new(BIO_s_file());
+ out=BIO_new(BIO_s_file());
+ if ((in == NULL) || (out == NULL))
+ {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ if (debug)
+ {
+ BIO_set_callback(in,BIO_debug_callback);
+ BIO_set_callback(out,BIO_debug_callback);
+ BIO_set_callback_arg(in,bio_err);
+ BIO_set_callback_arg(out,bio_err);
+ }
+
+ if (inf == NULL)
+ BIO_set_fp(in,stdin,BIO_NOCLOSE);
+ else
+ {
+ if (BIO_read_filename(in,inf) <= 0)
+ {
+ perror(inf);
+ goto end;
+ }
+ }
+
+ if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
+ {
+ for (;;)
+ {
+ char buf[200];
+
+ sprintf(buf,"enter %s %s password:",
+ OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
+ (enc)?"encryption":"decryption");
+ strbuf[0]='\0';
+ i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
+ if (i == 0)
+ {
+ if (strbuf[0] == '\0')
+ {
+ ret=1;
+ goto end;
+ }
+ str=strbuf;
+ break;
+ }
+ if (i < 0)
+ {
+ BIO_printf(bio_err,"bad password read\n");
+ goto end;
+ }
+ }
+ }
+
+ if (cipher != NULL)
+ {
+ if (str != NULL)
+ {
+ EVP_BytesToKey(cipher,EVP_md5(),NULL,
+ (unsigned char *)str,
+ strlen(str),1,key,iv);
+ /* zero the complete buffer or the string
+ * passed from the command line
+ * bug picked up by
+ * Larry J. Hughes Jr. <hughes@indiana.edu> */
+ if (str == strbuf)
+ memset(str,0,SIZE);
+ else
+ memset(str,0,strlen(str));
+ }
+ if ((hiv != NULL) && !set_hex(hiv,iv,8))
+ {
+ BIO_printf(bio_err,"invalid hex iv value\n");
+ goto end;
+ }
+ if ((hkey != NULL) && !set_hex(hkey,key,24))
+ {
+ BIO_printf(bio_err,"invalid hex key value\n");
+ goto end;
+ }
+
+ if ((benc=BIO_new(BIO_f_cipher())) == NULL)
+ goto end;
+ BIO_set_cipher(benc,cipher,key,iv,enc);
+ if (debug)
+ {
+ BIO_set_callback(benc,BIO_debug_callback);
+ BIO_set_callback_arg(benc,bio_err);
+ }
+
+ if (printkey)
+ {
+ if (cipher->key_len > 0)
+ {
+ printf("key=");
+ for (i=0; i<cipher->key_len; i++)
+ printf("%02X",key[i]);
+ printf("\n");
+ }
+ if (cipher->iv_len > 0)
+ {
+ printf("iv =");
+ for (i=0; i<cipher->iv_len; i++)
+ printf("%02X",iv[i]);
+ printf("\n");
+ }
+ if (printkey == 2)
+ {
+ ret=0;
+ goto end;
+ }
+ }
+ }
+
+
+ if (outf == NULL)
+ BIO_set_fp(out,stdout,BIO_NOCLOSE);
+ else
+ {
+ if (BIO_write_filename(out,outf) <= 0)
+ {
+ perror(outf);
+ goto end;
+ }
+ }
+
+ rbio=in;
+ wbio=out;
+
+ if (base64)
+ {
+ if ((b64=BIO_new(BIO_f_base64())) == NULL)
+ goto end;
+ if (debug)
+ {
+ BIO_set_callback(b64,BIO_debug_callback);
+ BIO_set_callback_arg(b64,bio_err);
+ }
+ if (enc)
+ wbio=BIO_push(b64,wbio);
+ else
+ rbio=BIO_push(b64,rbio);
+ }
+
+ /* Only encrypt/decrypt as we write the file */
+ if (benc != NULL)
+ wbio=BIO_push(benc,wbio);
+
+ for (;;)
+ {
+ inl=BIO_read(rbio,(char *)buff,bsize);
+ if (inl <= 0) break;
+ if (BIO_write(wbio,(char *)buff,inl) != inl)
+ {
+ BIO_printf(bio_err,"error writing output file\n");
+ goto end;
+ }
+ }
+ if (!BIO_flush(wbio))
+ {
+ BIO_printf(bio_err,"bad decrypt\n");
+ goto end;
+ }
+
+ ret=0;
+ if (verbose)
+ {
+ BIO_printf(bio_err,"bytes read :%8ld\n",BIO_number_read(in));
+ BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
+ }
+end:
+ if (strbuf != NULL) Free(strbuf);
+ if (buff != NULL) Free(buff);
+ if (in != NULL) BIO_free(in);
+ if (out != NULL) BIO_free(out);
+ if (benc != NULL) BIO_free(benc);
+ if (b64 != NULL) BIO_free(b64);
+ EXIT(ret);
+ }
+
+int set_hex(in,out,size)
+char *in;
+unsigned char *out;
+int size;
+ {
+ int i,n;
+ unsigned char j;
+
+ n=strlen(in);
+ if (n > (size*2))
+ {
+ BIO_printf(bio_err,"hex string is too long\n");
+ return(0);
+ }
+ memset(out,0,size);
+ for (i=0; i<n; i++)
+ {
+ j=(unsigned char)*in;
+ *(in++)='\0';
+ if (j == 0) break;
+ if ((j >= '0') && (j <= '9'))
+ j-='0';
+ else if ((j >= 'A') && (j <= 'F'))
+ j=j-'A'+10;
+ else if ((j >= 'a') && (j <= 'f'))
+ j=j-'a'+10;
+ else
+ {
+ BIO_printf(bio_err,"non-hex digit\n");
+ return(0);
+ }
+ if (i&1)
+ out[i/2]|=j;
+ else
+ out[i/2]=(j<<4);
+ }
+ return(1);
+ }
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