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-rw-r--r--usr.bin/openssl/enc.c649
1 files changed, 649 insertions, 0 deletions
diff --git a/usr.bin/openssl/enc.c b/usr.bin/openssl/enc.c
new file mode 100644
index 00000000000..eff49818f9a
--- /dev/null
+++ b/usr.bin/openssl/enc.c
@@ -0,0 +1,649 @@
+/* $OpenBSD: enc.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */
+/* 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:
+ * 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 <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "apps.h"
+
+#include <openssl/bio.h>
+#include <openssl/comp.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/pem.h>
+#include <openssl/rand.h>
+#include <openssl/x509.h>
+
+int set_hex(char *in, unsigned char *out, int size);
+
+#define SIZE (512)
+#define BSIZE (8*1024)
+#define PROG enc_main
+
+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, " ");
+}
+
+int enc_main(int, char **);
+
+int
+enc_main(int argc, char **argv)
+{
+ static const char magic[] = "Salted__";
+ char mbuf[sizeof magic - 1];
+ char *strbuf = NULL;
+ unsigned char *buff = NULL, *bufsize = NULL;
+ int bsize = BSIZE, verbose = 0;
+ int ret = 1, inl;
+ int nopad = 0;
+ unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
+ unsigned char salt[PKCS5_SALT_LEN];
+ char *str = NULL, *passarg = NULL, *pass = NULL;
+ char *hkey = NULL, *hiv = NULL, *hsalt = NULL;
+ char *md = NULL;
+ int enc = 1, printkey = 0, i, base64 = 0;
+#ifdef ZLIB
+ int do_zlib = 0;
+ BIO *bzl = NULL;
+#endif
+ int debug = 0, olb64 = 0, nosalt = 0;
+ const EVP_CIPHER *cipher = NULL, *c;
+ EVP_CIPHER_CTX *ctx = NULL;
+ char *inf = NULL, *outf = NULL;
+ BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = NULL,
+ *wbio = NULL;
+#define PROG_NAME_SIZE 39
+ char pname[PROG_NAME_SIZE + 1];
+#ifndef OPENSSL_NO_ENGINE
+ char *engine = NULL;
+#endif
+ const EVP_MD *dgst = NULL;
+
+ /* first check the program name */
+ program_name(argv[0], pname, sizeof pname);
+ if (strcmp(pname, "base64") == 0)
+ base64 = 1;
+#ifdef ZLIB
+ if (strcmp(pname, "zlib") == 0)
+ do_zlib = 1;
+#endif
+
+ cipher = EVP_get_cipherbyname(pname);
+#ifdef ZLIB
+ if (!do_zlib && !base64 && (cipher == NULL)
+ && (strcmp(pname, "enc") != 0))
+#else
+ if (!base64 && (cipher == NULL) && (strcmp(pname, "enc") != 0))
+#endif
+ {
+ 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);
+ }
+#ifndef OPENSSL_NO_ENGINE
+ else if (strcmp(*argv, "-engine") == 0) {
+ if (--argc < 1)
+ goto bad;
+ engine = *(++argv);
+ }
+#endif
+ 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, "-nopad") == 0)
+ nopad = 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;
+#ifdef ZLIB
+ else if (strcmp(*argv, "-z") == 0)
+ do_zlib = 1;
+#endif
+ 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';
+ if (!fgets(buf, sizeof buf, infile)) {
+ BIO_printf(bio_err, "unable to read key from '%s'\n",
+ file);
+ fclose(infile);
+ goto bad;
+ }
+ 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 (strcmp(*argv, "-md") == 0) {
+ if (--argc < 1)
+ goto bad;
+ md = *(++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 file\n", "-out <file>");
+ BIO_printf(bio_err, "%-14s pass phrase source\n", "-pass <arg>");
+ 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 passphrase is the next argument\n", "-k");
+ BIO_printf(bio_err, "%-14s passphrase is the first line of the file argument\n", "-kfile");
+ BIO_printf(bio_err, "%-14s the next argument is the md to use to create a key\n", "-md");
+ BIO_printf(bio_err, "%-14s from a passphrase. One of md2, md5, sha or sha1\n", "");
+ BIO_printf(bio_err, "%-14s salt in hex is the next argument\n", "-S");
+ 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, "%-14s disable standard block padding\n", "-nopad");
+#ifndef OPENSSL_NO_ENGINE
+ BIO_printf(bio_err, "%-14s use engine e, possibly a hardware device.\n", "-engine e");
+#endif
+
+ 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;
+ }
+ argc--;
+ argv++;
+ }
+
+#ifndef OPENSSL_NO_ENGINE
+ setup_engine(bio_err, engine, 0);
+#endif
+
+ if (md && (dgst = EVP_get_digestbyname(md)) == NULL) {
+ BIO_printf(bio_err, "%s is an unsupported message digest type\n", md);
+ goto end;
+ }
+ if (dgst == NULL) {
+ dgst = EVP_md5();
+ }
+ 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 (base64 && n < 80)
+ n = 80;
+
+ bsize = (int) n;
+ if (verbose)
+ BIO_printf(bio_err, "bufsize=%d\n", bsize);
+ }
+ strbuf = malloc(SIZE);
+ buff = 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, (char *) bio_err);
+ BIO_set_callback_arg(out, (char *) bio_err);
+ }
+ if (inf == NULL) {
+ if (bufsize != NULL)
+ setvbuf(stdin, (char *) NULL, _IONBF, 0);
+ 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];
+ int ret;
+
+ ret = snprintf(buf, sizeof buf, "enter %s %s password:",
+ OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
+ (enc) ? "encryption" : "decryption");
+ if (ret == -1 || ret >= sizeof buf) {
+ BIO_printf(bio_err, "Password prompt too long\n");
+ goto end;
+ }
+ 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);
+ if (bufsize != NULL)
+ setvbuf(stdout, (char *) NULL, _IONBF, 0);
+ } else {
+ if (BIO_write_filename(out, outf) <= 0) {
+ perror(outf);
+ 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_pseudo_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;
+ }
+
+ EVP_BytesToKey(cipher, dgst, 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. <hughes@indiana.edu>
+ */
+ if (str == strbuf)
+ OPENSSL_cleanse(str, SIZE);
+ else
+ OPENSSL_cleanse(str, strlen(str));
+ }
+ if ((hiv != NULL) && !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, sizeof key)) {
+ 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 (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;
+ }
+ }
+ }
+ /* 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);
+ free(strbuf);
+ free(buff);
+ BIO_free(in);
+ if (out != NULL)
+ BIO_free_all(out);
+ BIO_free(benc);
+ BIO_free(b64);
+#ifdef ZLIB
+ BIO_free(bzl);
+#endif
+ free(pass);
+
+ return (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 < 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);
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.