-/* apps/enc.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 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:
* 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
+ * 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
* 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
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <limits.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();
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include <openssl/rand.h>
+#include <openssl/pem.h>
+#ifndef OPENSSL_NO_COMP
+# include <openssl/comp.h>
#endif
+#include <ctype.h>
#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");
+#define SIZE (512)
+#define BSIZE (8*1024)
+
+static int set_hex(char *in, unsigned char *out, int size);
+static void show_ciphers(const OBJ_NAME *name, void *bio_);
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ 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_CIPHER
+} OPTION_CHOICE;
+
+OPTIONS enc_options[] = {
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"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, '-'},
+ {"nopad", OPT_NOPAD, '-', "Disable standard block padding"},
+ {"salt", OPT_SALT, '-'},
+ {"nosalt", OPT_NOSALT, '-'},
+ {"debug", OPT_DEBUG, '-'},
+ {"A", OPT_UPPER_A, '-'},
+ {"a", OPT_A, '-', "base64 encode/decode, depending on encryption flag"},
+ {"base64", OPT_A, '-', "Base64 output as a single line"},
+ {"bufsize", OPT_BUFSIZE, 's', "Buffer size"},
+ {"k", OPT_K, 's', "Passphrase"},
+ {"kfile", OPT_KFILE, '<', "Fead 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 key from passphrase"},
+ {"none", OPT_NONE, '-', "Don't encrypt"},
+ {"", OPT_CIPHER, '-', "Any supported cipher"},
+#ifdef ZLIB
+ {"z", OPT_Z, '-', "Use zlib as the 'encryption'"},
#endif
-#ifndef NO_BLOWFISH
- 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__";
+ 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];
+ long n;
+#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;
+ BIO_printf(bio_err, "Cipher Types\n");
+ OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
+ show_ciphers, bio_err);
+ BIO_printf(bio_err, "\n");
+ 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:
+ (void)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_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);
+ 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_NONE:
+ cipher = NULL;
+ break;
+ }
+ }
+ argc = opt_num_rest();
+ argv = opt_rest();
+
+ 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();
+
+ /* 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);
+
+ 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 (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);
+ }
+
+ if (infile == NULL) {
+ unbuffer(stdin);
+ in = dup_bio_in(informat);
+ } else
+ in = bio_open_default(infile, 'r', informat);
+ if (in == NULL)
+ goto end;
+
+ if (!str && passarg) {
+ 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)) {
+ 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;
+ }
+ }
+ }
+
+ out = bio_open_default(outfile, 'w', outformat);
+ if (out == NULL)
+ goto end;
+
+ rbio = in;
+ wbio = out;
+
+#ifdef ZLIB
+ if (do_zlib) {
+ if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
+ goto end;
+ if (enc)
+ wbio = BIO_push(bzl, wbio);
+ else
+ rbio = BIO_push(bzl, rbio);
+ }
+#endif
+
+ 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;
+ 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 (!EVP_BytesToKey(cipher, dgst, sptr,
+ (unsigned char *)str,
+ strlen(str), 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 bug picked up by Larry J. Hughes Jr. <hughes@indiana.edu>
+ */
+ if (str == strbuf)
+ OPENSSL_cleanse(str, SIZE);
+ else
+ OPENSSL_cleanse(str, strlen(str));
+ }
+ 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, sizeof iv)) {
+ 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 during
+ * EVP_BytesToKey. Hence the IV is undefined, making correct
+ * decryption impossible.
+ */
+ BIO_printf(bio_err, "iv undefined\n");
+ goto end;
+ }
+ if ((hkey != NULL) && !set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) {
+ BIO_printf(bio_err, "invalid hex key value\n");
+ goto end;
+ }
+
+ 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 :%8"PRIu64"\n", BIO_number_read(in));
+ BIO_printf(bio_err, "bytes written:%8"PRIu64"\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
- 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);
- }
+ OPENSSL_free(pass);
+ return (ret);
+}
+
+static void show_ciphers(const OBJ_NAME *name, void *bio_)
+{
+ BIO *bio = bio_;
+ static int n;
+
+ if (!islower((unsigned char)*name->name))
+ return;
+
+ BIO_printf(bio, "-%-25s", name->name);
+ if (++n == 3) {
+ BIO_printf(bio, "\n");
+ n = 0;
+ } else
+ BIO_printf(bio, " ");
+}
+
+static 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 < n; i++) {
+ j = (unsigned char)*in;
+ *(in++) = '\0';
+ if (j == 0)
+ break;
+ if (!isxdigit(j)) {
+ BIO_printf(bio_err, "non-hex digit\n");
+ return (0);
+ }
+ j = (unsigned char)app_hex(j);
+ if (i & 1)
+ out[i / 2] |= j;
+ else
+ out[i / 2] = (j << 4);
+ }
+ return (1);
+}
projects / openssl.git / blobdiff