X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fenc.c;h=8e5a57d3e5d74d72410a68cef3445641aad48191;hp=84179f57a0fcb6b5caa04164f58c5d8093bdc423;hb=48bc0d99af6df9919ddbe71e4bc6d8690e9b5174;hpb=5270e7025e11b2fd1a5bdf8d81feded1167b1c87 diff --git a/apps/enc.c b/apps/enc.c index 84179f57a0..8e5a57d3e5 100644 --- a/apps/enc.c +++ b/apps/enc.c @@ -1,668 +1,675 @@ -/* apps/enc.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2018 The OpenSSL Project Authors. 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.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include #include #include +#include #include "apps.h" +#include "progs.h" #include #include #include #include #include #include -#ifndef NO_MD5 -#include -#endif #include -#include +#ifndef OPENSSL_NO_COMP +# include +#endif +#include -int set_hex(char *in,unsigned char *out,int size); #undef SIZE #undef BSIZE -#undef PROG - -#define SIZE (512) -#define BSIZE (8*1024) -#define PROG enc_main - -int MAIN(int, char **); - -int MAIN(int argc, char **argv) - { - ENGINE *e = NULL; - static const char magic[]="Salted__"; - char mbuf[8]; /* should be 1 smaller than magic */ - 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]; - unsigned char salt[PKCS5_SALT_LEN]; - char *str=NULL, *passarg = NULL, *pass = NULL; - char *hkey=NULL,*hiv=NULL,*hsalt = NULL; - int enc=1,printkey=0,i,base64=0; - int debug=0,olb64=0,nosalt=0; - const 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]; - char *engine = NULL; - - apps_startup(); - - if (bio_err == NULL) - if ((bio_err=BIO_new(BIO_s_file())) != NULL) - BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); - - /* 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,"-pass") == 0) - { - if (--argc < 1) goto bad; - passarg= *(++argv); - } - else if (strcmp(*argv,"-engine") == 0) - { - if (--argc < 1) goto bad; - engine= *(++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,"-salt") == 0) - nosalt=0; - else if (strcmp(*argv,"-nosalt") == 0) - nosalt=1; - else if (strcmp(*argv,"-debug") == 0) - debug=1; - else if (strcmp(*argv,"-P") == 0) - printkey=2; - else if (strcmp(*argv,"-A") == 0) - olb64=1; - 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,"-S") == 0) - { - if (--argc < 1) goto bad; - hsalt= *(++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 "); - BIO_printf(bio_err,"%-14s output file\n","-out "); - BIO_printf(bio_err,"%-14s pass phrase source\n","-pass "); - 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 "); - BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e"); - - 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"); +#define SIZE (512) +#define BSIZE (8*1024) + +static int set_hex(const char *in, unsigned char *out, int size); +static void show_ciphers(const OBJ_NAME *name, void *bio_); + +struct doall_enc_ciphers { + BIO *bio; + int n; +}; + +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_LIST, + OPT_E, OPT_IN, OPT_OUT, OPT_PASS, OPT_ENGINE, OPT_D, OPT_P, OPT_V, + OPT_NOPAD, OPT_SALT, OPT_NOSALT, OPT_DEBUG, OPT_UPPER_P, OPT_UPPER_A, + OPT_A, OPT_Z, OPT_BUFSIZE, OPT_K, OPT_KFILE, OPT_UPPER_K, OPT_NONE, + OPT_UPPER_S, OPT_IV, OPT_MD, OPT_ITER, OPT_PBKDF2, OPT_CIPHER, + OPT_R_ENUM +} OPTION_CHOICE; + +const OPTIONS enc_options[] = { + {"help", OPT_HELP, '-', "Display this summary"}, + {"ciphers", OPT_LIST, '-', "List ciphers"}, + {"in", OPT_IN, '<', "Input file"}, + {"out", OPT_OUT, '>', "Output file"}, + {"pass", OPT_PASS, 's', "Passphrase source"}, + {"e", OPT_E, '-', "Encrypt"}, + {"d", OPT_D, '-', "Decrypt"}, + {"p", OPT_P, '-', "Print the iv/key"}, + {"P", OPT_UPPER_P, '-', "Print the iv/key and exit"}, + {"v", OPT_V, '-', "Verbose output"}, + {"nopad", OPT_NOPAD, '-', "Disable standard block padding"}, + {"salt", OPT_SALT, '-', "Use salt in the KDF (default)"}, + {"nosalt", OPT_NOSALT, '-', "Do not use salt in the KDF"}, + {"debug", OPT_DEBUG, '-', "Print debug info"}, + {"a", OPT_A, '-', "Base64 encode/decode, depending on encryption flag"}, + {"base64", OPT_A, '-', "Same as option -a"}, + {"A", OPT_UPPER_A, '-', + "Used with -[base64|a] to specify base64 buffer as a single line"}, + {"bufsize", OPT_BUFSIZE, 's', "Buffer size"}, + {"k", OPT_K, 's', "Passphrase"}, + {"kfile", OPT_KFILE, '<', "Read passphrase from file"}, + {"K", OPT_UPPER_K, 's', "Raw key, in hex"}, + {"S", OPT_UPPER_S, 's', "Salt, in hex"}, + {"iv", OPT_IV, 's', "IV in hex"}, + {"md", OPT_MD, 's', "Use specified digest to create a key from the passphrase"}, + {"iter", OPT_ITER, 'p', "Specify the iteration count and force use of PBKDF2"}, + {"pbkdf2", OPT_PBKDF2, '-', "Use password-based key derivation function 2"}, + {"none", OPT_NONE, '-', "Don't encrypt"}, + {"", OPT_CIPHER, '-', "Any supported cipher"}, + OPT_R_OPTIONS, +#ifdef ZLIB + {"z", OPT_Z, '-', "Use zlib as the 'encryption'"}, #endif -#ifndef NO_BF - BIO_printf(bio_err,"bf :128 bit key Blowfish encryption\n"); +#ifndef OPENSSL_NO_ENGINE + {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, #endif -#ifndef NO_RC4 - BIO_printf(bio_err," -%-5s :128 bit key RC4 encryption\n", - LN_rc4); + {NULL} +}; + +int enc_main(int argc, char **argv) +{ + static char buf[128]; + static const char magic[] = "Salted__"; + ENGINE *e = NULL; + BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = + NULL, *wbio = NULL; + EVP_CIPHER_CTX *ctx = NULL; + const EVP_CIPHER *cipher = NULL, *c; + const EVP_MD *dgst = NULL; + char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p; + char *infile = NULL, *outfile = NULL, *prog; + char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL; + char mbuf[sizeof(magic) - 1]; + OPTION_CHOICE o; + int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0; + int enc = 1, printkey = 0, i, k; + int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY; + int ret = 1, inl, nopad = 0; + unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; + unsigned char *buff = NULL, salt[PKCS5_SALT_LEN]; + int pbkdf2 = 0; + int iter = 0; + long n; + struct doall_enc_ciphers dec; +#ifdef ZLIB + int do_zlib = 0; + BIO *bzl = NULL; #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); + /* first check the program name */ + prog = opt_progname(argv[0]); + if (strcmp(prog, "base64") == 0) { + base64 = 1; +#ifdef ZLIB + } else if (strcmp(prog, "zlib") == 0) { + do_zlib = 1; #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); + } else { + cipher = EVP_get_cipherbyname(prog); + if (cipher == NULL && strcmp(prog, "enc") != 0) { + BIO_printf(bio_err, "%s is not a known cipher\n", prog); + goto end; + } + } + + prog = opt_init(argc, argv, enc_options); + while ((o = opt_next()) != OPT_EOF) { + switch (o) { + case OPT_EOF: + case OPT_ERR: + opthelp: + BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); + goto end; + case OPT_HELP: + opt_help(enc_options); + ret = 0; + goto end; + case OPT_LIST: + BIO_printf(bio_out, "Supported ciphers:\n"); + dec.bio = bio_out; + dec.n = 0; + OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, + show_ciphers, &dec); + BIO_printf(bio_out, "\n"); + ret = 0; + goto end; + case OPT_E: + enc = 1; + break; + case OPT_IN: + infile = opt_arg(); + break; + case OPT_OUT: + outfile = opt_arg(); + break; + case OPT_PASS: + passarg = opt_arg(); + break; + case OPT_ENGINE: + e = setup_engine(opt_arg(), 0); + break; + case OPT_D: + enc = 0; + break; + case OPT_P: + printkey = 1; + break; + case OPT_V: + verbose = 1; + break; + case OPT_NOPAD: + nopad = 1; + break; + case OPT_SALT: + nosalt = 0; + break; + case OPT_NOSALT: + nosalt = 1; + break; + case OPT_DEBUG: + debug = 1; + break; + case OPT_UPPER_P: + printkey = 2; + break; + case OPT_UPPER_A: + olb64 = 1; + break; + case OPT_A: + base64 = 1; + break; + case OPT_Z: +#ifdef ZLIB + do_zlib = 1; #endif -#ifndef NO_BF - 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); + break; + case OPT_BUFSIZE: + p = opt_arg(); + i = (int)strlen(p) - 1; + k = i >= 1 && p[i] == 'k'; + if (k) + p[i] = '\0'; + if (!opt_long(opt_arg(), &n) + || n < 0 || (k && n >= LONG_MAX / 1024)) + goto opthelp; + if (k) + n *= 1024; + bsize = (int)n; + break; + case OPT_K: + str = opt_arg(); + break; + case OPT_KFILE: + in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT); + if (in == NULL) + goto opthelp; + i = BIO_gets(in, buf, sizeof(buf)); + BIO_free(in); + in = NULL; + if (i <= 0) { + BIO_printf(bio_err, + "%s Can't read key from %s\n", prog, opt_arg()); + goto opthelp; + } + while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n')) + buf[i] = '\0'; + if (i <= 0) { + BIO_printf(bio_err, "%s: zero length password\n", prog); + goto opthelp; + } + str = buf; + break; + case OPT_UPPER_K: + hkey = opt_arg(); + break; + case OPT_UPPER_S: + hsalt = opt_arg(); + break; + case OPT_IV: + hiv = opt_arg(); + break; + case OPT_MD: + if (!opt_md(opt_arg(), &dgst)) + goto opthelp; + break; + case OPT_CIPHER: + if (!opt_cipher(opt_unknown(), &c)) + goto opthelp; + cipher = c; + break; + case OPT_ITER: + if (!opt_int(opt_arg(), &iter)) + goto opthelp; + pbkdf2 = 1; + break; + case OPT_PBKDF2: + pbkdf2 = 1; + if (iter == 0) /* do not overwrite a chosen value */ + iter = 10000; + break; + case OPT_NONE: + cipher = NULL; + break; + case OPT_R_CASES: + if (!opt_rand(o)) + goto end; + break; + } + } + if (opt_num_rest() != 0) { + BIO_printf(bio_err, "Extra arguments given.\n"); + goto opthelp; + } + + if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) { + BIO_printf(bio_err, "%s: AEAD ciphers not supported\n", prog); + goto end; + } + + if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) { + BIO_printf(bio_err, "%s XTS ciphers not supported\n", prog); + goto end; + } + + if (dgst == NULL) + dgst = EVP_sha256(); + + if (iter == 0) + iter = 1; + + /* It must be large enough for a base64 encoded line */ + if (base64 && bsize < 80) + bsize = 80; + if (verbose) + BIO_printf(bio_err, "bufsize=%d\n", bsize); + +#ifdef ZLIB + if (!do_zlib) #endif -#ifndef NO_CAST - BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", - LN_cast5_ecb, LN_cast5_cbc, - LN_cast5_cfb64, LN_cast5_ofb64); - BIO_printf(bio_err," -%-4s (%s)\n","cast", LN_cast5_cbc); + if (base64) { + if (enc) + outformat = FORMAT_BASE64; + else + informat = FORMAT_BASE64; + } + + strbuf = app_malloc(SIZE, "strbuf"); + buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer"); + + if (infile == NULL) { + in = dup_bio_in(informat); + } else { + in = bio_open_default(infile, 'r', informat); + } + if (in == NULL) + goto end; + + if (str == NULL && passarg != NULL) { + if (!app_passwd(passarg, NULL, &pass, NULL)) { + BIO_printf(bio_err, "Error getting password\n"); + goto end; + } + str = pass; + } + + if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) { + if (1) { +#ifndef OPENSSL_NO_UI_CONSOLE + for (;;) { + char prompt[200]; + + BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:", + OBJ_nid2ln(EVP_CIPHER_nid(cipher)), + (enc) ? "encryption" : "decryption"); + strbuf[0] = '\0'; + i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, 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; + } + } + } else { #endif -#ifndef NO_RC5 - BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", - LN_rc5_ecb, LN_rc5_cbc, - LN_rc5_cfb64, LN_rc5_ofb64); - BIO_printf(bio_err," -%-4s (%s)\n","rc5", LN_rc5_cbc); + BIO_printf(bio_err, "password required\n"); + goto end; + } + } + + out = bio_open_default(outfile, 'w', outformat); + if (out == NULL) + goto end; + + if (debug) { + BIO_set_callback(in, BIO_debug_callback); + BIO_set_callback(out, BIO_debug_callback); + BIO_set_callback_arg(in, (char *)bio_err); + BIO_set_callback_arg(out, (char *)bio_err); + } + + rbio = in; + wbio = out; + +#ifdef ZLIB + if (do_zlib) { + if ((bzl = BIO_new(BIO_f_zlib())) == NULL) + goto end; + if (debug) { + BIO_set_callback(bzl, BIO_debug_callback); + BIO_set_callback_arg(bzl, (char *)bio_err); + } + if (enc) + wbio = BIO_push(bzl, wbio); + else + rbio = BIO_push(bzl, rbio); + } #endif -#ifndef NO_RIJNDAEL - BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s\n", - LN_rijndael_ecb_k128_b128,"","","",""); -#endif - - goto end; - } - argc--; - argv++; - } - - if (engine != NULL) - { - if((e = ENGINE_by_id(engine)) == NULL) - { - BIO_printf(bio_err,"invalid engine \"%s\"\n", - engine); - goto end; - } - if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) - { - BIO_printf(bio_err,"can't use that engine\n"); - goto end; - } - BIO_printf(bio_err,"engine \"%s\" set.\n", engine); - /* Free our "structural" reference. */ - ENGINE_free(e); - } - - 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=OPENSSL_malloc(SIZE); - buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize)); - if ((buff == NULL) || (strbuf == NULL)) - { - BIO_printf(bio_err,"OPENSSL_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 && passarg) { - if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { - BIO_printf(bio_err, "Error getting password\n"); - goto end; - } - str = pass; - } - - 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 (outf == NULL) - { - BIO_set_fp(out,stdout,BIO_NOCLOSE); -#ifdef VMS - { - BIO *tmpbio = BIO_new(BIO_f_linebuffer()); - out = BIO_push(tmpbio, 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, (char *)bio_err); + } + if (olb64) + BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); + if (enc) + wbio = BIO_push(b64, wbio); + else + rbio = BIO_push(b64, rbio); + } + + if (cipher != NULL) { + /* + * Note that str is NULL if a key was passed on the command line, so + * we get no salt in that case. Is this a bug? + */ + if (str != NULL) { + /* + * Salt handling: if encrypting generate a salt and write to + * output BIO. If decrypting read salt from input BIO. + */ + unsigned char *sptr; + size_t str_len = strlen(str); + + if (nosalt) { + sptr = NULL; + } else { + if (enc) { + if (hsalt) { + if (!set_hex(hsalt, salt, sizeof(salt))) { + BIO_printf(bio_err, "invalid hex salt value\n"); + goto end; + } + } else if (RAND_bytes(salt, sizeof(salt)) <= 0) { + goto end; + } + /* + * If -P option then don't bother writing + */ + if ((printkey != 2) + && (BIO_write(wbio, magic, + sizeof(magic) - 1) != sizeof(magic) - 1 + || BIO_write(wbio, + (char *)salt, + sizeof(salt)) != sizeof(salt))) { + BIO_printf(bio_err, "error writing output file\n"); + goto end; + } + } else if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf) + || BIO_read(rbio, + (unsigned char *)salt, + sizeof(salt)) != sizeof(salt)) { + BIO_printf(bio_err, "error reading input file\n"); + goto end; + } else if (memcmp(mbuf, magic, sizeof(magic) - 1)) { + BIO_printf(bio_err, "bad magic number\n"); + goto end; + } + sptr = salt; + } + + if (pbkdf2 == 1) { + /* + * derive key and default iv + * concatenated into a temporary buffer + */ + unsigned char tmpkeyiv[EVP_MAX_KEY_LENGTH + EVP_MAX_IV_LENGTH]; + int iklen = EVP_CIPHER_key_length(cipher); + int ivlen = EVP_CIPHER_iv_length(cipher); + /* not needed if HASH_UPDATE() is fixed : */ + int islen = (sptr != NULL ? sizeof(salt) : 0); + if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen, + iter, dgst, iklen+ivlen, tmpkeyiv)) { + BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n"); + goto end; + } + /* split and move data back to global buffer */ + memcpy(key, tmpkeyiv, iklen); + memcpy(iv, tmpkeyiv+iklen, ivlen); + } else { + BIO_printf(bio_err, "*** WARNING : " + "deprecated key derivation used.\n" + "Using -iter or -pbkdf2 would be better.\n"); + if (!EVP_BytesToKey(cipher, dgst, sptr, + (unsigned char *)str, str_len, + 1, key, iv)) { + BIO_printf(bio_err, "EVP_BytesToKey failed\n"); + goto end; + } + } + /* + * zero the complete buffer or the string passed from the command + * line. + */ + if (str == strbuf) + OPENSSL_cleanse(str, SIZE); + else + OPENSSL_cleanse(str, str_len); + } + if (hiv != NULL) { + int siz = EVP_CIPHER_iv_length(cipher); + if (siz == 0) { + BIO_printf(bio_err, "warning: iv not use by this cipher\n"); + } else if (!set_hex(hiv, iv, siz)) { + BIO_printf(bio_err, "invalid hex iv value\n"); + goto end; + } + } + if ((hiv == NULL) && (str == NULL) + && EVP_CIPHER_iv_length(cipher) != 0) { + /* + * No IV was explicitly set and no IV was generated. + * Hence the IV is undefined, making correct decryption impossible. + */ + BIO_printf(bio_err, "iv undefined\n"); + goto end; + } + if (hkey != NULL) { + if (!set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) { + BIO_printf(bio_err, "invalid hex key value\n"); + goto end; + } + /* wiping secret data as we no longer need it */ + OPENSSL_cleanse(hkey, strlen(hkey)); + } + + if ((benc = BIO_new(BIO_f_cipher())) == NULL) + goto end; + + /* + * Since we may be changing parameters work on the encryption context + * rather than calling BIO_set_cipher(). + */ + + BIO_get_cipher_ctx(benc, &ctx); + + if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) { + BIO_printf(bio_err, "Error setting cipher %s\n", + EVP_CIPHER_name(cipher)); + ERR_print_errors(bio_err); + goto end; + } + + if (nopad) + EVP_CIPHER_CTX_set_padding(ctx, 0); + + if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) { + BIO_printf(bio_err, "Error setting cipher %s\n", + EVP_CIPHER_name(cipher)); + ERR_print_errors(bio_err); + goto end; + } + + if (debug) { + BIO_set_callback(benc, BIO_debug_callback); + BIO_set_callback_arg(benc, (char *)bio_err); + } + + if (printkey) { + if (!nosalt) { + printf("salt="); + for (i = 0; i < (int)sizeof(salt); i++) + printf("%02X", salt[i]); + printf("\n"); + } + if (EVP_CIPHER_key_length(cipher) > 0) { + printf("key="); + for (i = 0; i < EVP_CIPHER_key_length(cipher); i++) + printf("%02X", key[i]); + printf("\n"); + } + if (EVP_CIPHER_iv_length(cipher) > 0) { + printf("iv ="); + for (i = 0; i < EVP_CIPHER_iv_length(cipher); i++) + printf("%02X", iv[i]); + printf("\n"); + } + if (printkey == 2) { + ret = 0; + goto end; + } + } + } + + /* 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 : %8ju\n", BIO_number_read(in)); + BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out)); + } + end: + ERR_print_errors(bio_err); + OPENSSL_free(strbuf); + OPENSSL_free(buff); + BIO_free(in); + BIO_free_all(out); + BIO_free(benc); + BIO_free(b64); +#ifdef ZLIB + BIO_free(bzl); #endif - } - 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 (olb64) - BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL); - if (enc) - wbio=BIO_push(b64,wbio); - else - rbio=BIO_push(b64,rbio); - } - - if (cipher != NULL) - { - if (str != NULL) - { - /* Salt handling: if encrypting generate a salt and - * write to output BIO. If decrypting read salt from - * input BIO. - */ - unsigned char *sptr; - if(nosalt) sptr = NULL; - else { - if(enc) { - if(hsalt) { - if(!set_hex(hsalt,salt,PKCS5_SALT_LEN)) { - BIO_printf(bio_err, - "invalid hex salt value\n"); - goto end; - } - } else if (RAND_pseudo_bytes(salt, PKCS5_SALT_LEN) < 0) - goto end; - /* If -P option then don't bother writing */ - if((printkey != 2) - && (BIO_write(wbio,magic, - sizeof magic-1) != sizeof magic-1 - || BIO_write(wbio, - (char *)salt, - PKCS5_SALT_LEN) != PKCS5_SALT_LEN)) { - BIO_printf(bio_err,"error writing output file\n"); - goto end; - } - } else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf - || BIO_read(rbio, - (unsigned char *)salt, - PKCS5_SALT_LEN) != PKCS5_SALT_LEN) { - BIO_printf(bio_err,"error reading input file\n"); - goto end; - } else if(memcmp(mbuf,magic,sizeof magic-1)) { - BIO_printf(bio_err,"bad magic number\n"); - goto end; - } - - sptr = salt; - } - - EVP_BytesToKey(cipher,EVP_md5(),sptr, - (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. */ - 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 (!nosalt) - { - printf("salt="); - for (i=0; ikey_len > 0) - { - printf("key="); - for (i=0; ikey_len; i++) - printf("%02X",key[i]); - printf("\n"); - } - if (cipher->iv_len > 0) - { - printf("iv ="); - for (i=0; iiv_len; i++) - printf("%02X",iv[i]); - printf("\n"); - } - if (printkey == 2) - { - ret=0; - goto end; - } - } - } - - /* 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: - ERR_print_errors(bio_err); - if (strbuf != NULL) OPENSSL_free(strbuf); - if (buff != NULL) OPENSSL_free(buff); - if (in != NULL) BIO_free(in); - if (out != NULL) BIO_free_all(out); - if (benc != NULL) BIO_free(benc); - if (b64 != NULL) BIO_free(b64); - if(pass) OPENSSL_free(pass); - EXIT(ret); - } - -int set_hex(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= '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); - } + release_engine(e); + OPENSSL_free(pass); + return ret; +} + +static void show_ciphers(const OBJ_NAME *name, void *arg) +{ + struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg; + const EVP_CIPHER *cipher; + + if (!islower((unsigned char)*name->name)) + return; + + /* Filter out ciphers that we cannot use */ + cipher = EVP_get_cipherbyname(name->name); + if (cipher == NULL || + (EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 || + EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE) + return; + + BIO_printf(dec->bio, "-%-25s", name->name); + if (++dec->n == 3) { + BIO_printf(dec->bio, "\n"); + dec->n = 0; + } else + BIO_printf(dec->bio, " "); +} + +static int set_hex(const char *in, unsigned char *out, int size) +{ + int i, n; + unsigned char j; + + i = size * 2; + n = strlen(in); + if (n > i) { + BIO_printf(bio_err, "hex string is too long, ignoring excess\n"); + n = i; /* ignore exceeding part */ + } else if (n < i) { + BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n"); + } + + memset(out, 0, size); + for (i = 0; i < n; i++) { + j = (unsigned char)*in++; + if (!isxdigit(j)) { + BIO_printf(bio_err, "non-hex digit\n"); + return 0; + } + j = (unsigned char)OPENSSL_hexchar2int(j); + if (i & 1) + out[i / 2] |= j; + else + out[i / 2] = (j << 4); + } + return 1; +}