pax_global_header00006660000000000000000000000064130165525060014515gustar00rootroot0000000000000052 comment=fe7e81a446d394be036cedd1f02032e874390b74 bruteforce-luks-1.2.2/000077500000000000000000000000001301655250600146335ustar00rootroot00000000000000bruteforce-luks-1.2.2/.gitignore000066400000000000000000000002401301655250600166170ustar00rootroot00000000000000aclocal.m4 autom4te.cache/ /bruteforce-luks compile config.log config.status configure depcomp .deps/ .dirstamp install-sh Makefile Makefile.in missing src/*.o bruteforce-luks-1.2.2/AUTHORS000066400000000000000000000001651301655250600157050ustar00rootroot000000000000002014-2016 Guillaume LE VAILLANT 2016-2016 Petr Špaček bruteforce-luks-1.2.2/COPYING000066400000000000000000001045131301655250600156720ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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But first, please read . bruteforce-luks-1.2.2/ChangeLog000066400000000000000000000013741301655250600164120ustar00rootroot000000000000002016-11-27 Guillaume LE VAILLANT Version 1.2.2 Add bruteforcing speed and last tried password to progress info. 2016-06-06 Guillaume LE VAILLANT Version 1.2.1 Fix mutex for dictionary mode. 2016-01-10 Guillaume LE VAILLANT Version 1.2.0 Root privileges are not required anymore. 2015-10-31 Guillaume LE VAILLANT Version 1.1 Print progress info when sending a USR1 signal to the process. Support all the characters of the current locale (e.g. utf-8). Add the possibility to get the passwords from a file. 2014-07-06 Guillaume LE VAILLANT Version 1.0 bruteforce-luks-1.2.2/INSTALL000066400000000000000000000366101301655250600156720ustar00rootroot00000000000000Installation Instructions ************************* Copyright (C) 1994-1996, 1999-2002, 2004-2013 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without warranty of any kind. Basic Installation ================== Briefly, the shell command `./configure && make && make install' should configure, build, and install this package. The following more-detailed instructions are generic; see the `README' file for instructions specific to this package. Some packages provide this `INSTALL' file but do not implement all of the features documented below. The lack of an optional feature in a given package is not necessarily a bug. More recommendations for GNU packages can be found in *note Makefile Conventions: (standards)Makefile Conventions. The `configure' shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a `Makefile' in each directory of the package. It may also create one or more `.h' files containing system-dependent definitions. Finally, it creates a shell script `config.status' that you can run in the future to recreate the current configuration, and a file `config.log' containing compiler output (useful mainly for debugging `configure'). It can also use an optional file (typically called `config.cache' and enabled with `--cache-file=config.cache' or simply `-C') that saves the results of its tests to speed up reconfiguring. Caching is disabled by default to prevent problems with accidental use of stale cache files. If you need to do unusual things to compile the package, please try to figure out how `configure' could check whether to do them, and mail diffs or instructions to the address given in the `README' so they can be considered for the next release. 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Run `configure --help' for more details. bruteforce-luks-1.2.2/Makefile.am000066400000000000000000000002401301655250600166630ustar00rootroot00000000000000AUTOMAKE_OPTIONS = subdir-objects bin_PROGRAMS = bruteforce-luks bruteforce_luks_SOURCES = src/bruteforce-luks.c src/version.h man_MANS = doc/bruteforce-luks.1 bruteforce-luks-1.2.2/NEWS000066400000000000000000000011331301655250600153300ustar00rootroot00000000000000Version 1.2.2 2016-11-27 Add bruteforcing speed and last tried password to progress info. Version 1.2.1 2016-06-06 Fix mutex for dictionary mode. Version 1.2.0 2016-01-08 Root privileges are not required anymore because cryptsetup is called in dry-run mode which does not actually change device mapper configuration. This should work under non-root user as long as the user can access the device. You can e.g. copy LUKS header to a file and run the cracker on this file. $ dd if=/dev/source of=/tmp/luks-header bs=1M count=10 Version 1.1 2015-10-31 Version 1.0 2014-07-06 bruteforce-luks-1.2.2/README000066400000000000000000000057711301655250600155250ustar00rootroot00000000000000bruteforce-luks =============== The purpose of this program is to try to find the password of a LUKS encrypted volume. It can be used in two ways: - try all the possible passwords given a charset - try all the passwords in a file There is a command line option to specify the number of threads to use. Sending a USR1 signal to a running bruteforce-luks process makes it print progress and continue. ## Exhaustive mode The program tries to decrypt at least one of the key slots by trying all the possible passwords. It is especially useful if you know something about the password (i.e. you forgot a part of your password but still remember most of it). Finding the password of a volume without knowing anything about it would take way too much time (unless the password is really short and/or weak). There are command line options to specify: - the minimum password length to try - the maximum password length to try - the beginning of the password - the end of the password - the character set to use (among the characters of the current locale) ## Dictionary mode The program tries to decrypt at least one of the key slots by trying all the passwords contained in a file. The file must have one password per line. ## Dependencies The program requires the cryptsetup library. ## Compilation Install the dependencies. For example on a GNU/Linux Debian-like system, enter the commands: sudo apt-get install dh-autoreconf sudo apt-get install libcryptsetup-dev If you are building from the raw sources, you must first generate the configuration script: ./autogen.sh Then, build the program with the commands: ./configure make To install it on your system, use the command: make install ## Examples Try to find the password of a LUKS encrypted volume using 4 threads, trying only passwords with 5 characters: bruteforce-luks -t 4 -l 5 -m 5 /dev/sdb1 Try to find the password of a LUKS encrypted volume using 8 threads, trying only passwords with 5 to 10 characters beginning with "W4l" and ending with "z": bruteforce-luks -t 8 -l 5 -m 10 -b "W4l" -e "z" /dev/sda2 Try to find the password of a LUKS encrypted volume using 8 threads, trying only passwords with 10 characters using the character set "P情8ŭ": bruteforce-luks -t 8 -l 10 -m 10 -s "P情8ŭ" /dev/sdc3 Try to find the password of a LUKS encrypted volume using 6 threads, trying the passwords contained in a dictionary file: bruteforce-luks -t 6 -f dictionary.txt /dev/sdd1 Instead of passing a block device to the program, you can copy the beginning of the LUKS volume to a file and pass this file to the program: sudo dd if=/dev/sda1 of=/tmp/luks-header bs=1M count=10 bruteforce-luks -t 4 -l 5 -m 5 /tmp/luks-header Print progress info: pkill -USR1 -f bruteforce-luks ## Donations If you find this program useful and want to make a donation, you can send coins to one of the following addresses: - Peercoin: PWFNV1Cvq7nQBRyRueuYzwmDNXUGpgNkBC - Bitcoin: 1F1ZfM7XtggHsShK4vwuy9zv98a9wt7nXx bruteforce-luks-1.2.2/README.md000077700000000000000000000000001301655250600167652READMEustar00rootroot00000000000000bruteforce-luks-1.2.2/autogen.sh000077500000000000000000000001251301655250600166320ustar00rootroot00000000000000#!/bin/sh set -e SRCDIR="$(dirname $0)" cd "${SRCDIR}" autoreconf --install --force bruteforce-luks-1.2.2/configure.ac000066400000000000000000000020621301655250600171210ustar00rootroot00000000000000AC_INIT(bruteforce_luks, 1.2.2) AM_INIT_AUTOMAKE AC_CONFIG_SRCDIR(src/bruteforce-luks.c) dnl Check for toolchain and install components AC_PROG_CC AC_PROG_INSTALL dnl Check for standard headers AC_CHECK_HEADERS([errno.h locale.h math.h signal.h stdio.h stdlib.h time.h unistd.h wchar.h]) dnl Check for functions AC_CHECK_FUNCS([calloc malloc realloc free]) AC_CHECK_FUNCS([perror printf fprintf snprintf]) AC_CHECK_FUNCS([fopen fgetc]) AC_CHECK_FUNCS([atoi]) AC_CHECK_FUNCS([setlocale mbstowcs wcsncpy wcstombs]) AC_CHECK_FUNCS([getopt]) AC_CHECK_FUNCS([signal]) AC_CHECK_FUNCS([time]) dnl Check for libraries AC_CHECK_LIB(m, pow, [], AC_MSG_ERROR([math library required])) AC_CHECK_LIB(pthread, pthread_create, [], AC_MSG_ERROR([POSIX threads library required])) AC_CHECK_HEADERS(pthread.h, [], AC_MSG_ERROR([POSIX threads headers required])) AC_CHECK_LIB(cryptsetup, crypt_activate_by_passphrase, [], AC_MSG_ERROR([cryptsetup library required])) AC_CHECK_HEADERS(libcryptsetup.h, [], AC_MSG_ERROR([cryptsetup headers required])) AC_CONFIG_FILES(Makefile) AC_OUTPUT bruteforce-luks-1.2.2/contrib/000077500000000000000000000000001301655250600162735ustar00rootroot00000000000000bruteforce-luks-1.2.2/contrib/gentoo/000077500000000000000000000000001301655250600175665ustar00rootroot00000000000000bruteforce-luks-1.2.2/contrib/gentoo/app-crypt/000077500000000000000000000000001301655250600215055ustar00rootroot00000000000000bruteforce-luks-1.2.2/contrib/gentoo/app-crypt/bruteforce-luks/000077500000000000000000000000001301655250600246215ustar00rootroot00000000000000bruteforce-luks-1.2.2/contrib/gentoo/app-crypt/bruteforce-luks/bruteforce-luks-1.0.ebuild000066400000000000000000000010671301655250600314230ustar00rootroot00000000000000# Copyright 2014 Guillaume LE VAILLANT # Distributed under the terms of the GNU General Public License v3 EAPI="5" inherit eutils autotools DESCRIPTION="A bruteforce cracker for LUKS encrypted volumes." HOMEPAGE="https://github.com/glv2/${PN}" SRC_URI="https://github.com/glv2/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz" LICENSE="GPL-3" SLOT="0" KEYWORDS="~amd64 ~arm ~x86" DEPEND=" sys-fs/cryptsetup " RDEPEND="${DEPEND}" src_prepare() { eautoreconf } src_configure() { econf } src_install() { dobin "${PN}" dodoc AUTHORS ChangeLog COPYING NEWS README } bruteforce-luks-1.2.2/contrib/gentoo/app-crypt/bruteforce-luks/bruteforce-luks-1.1.1.ebuild000066400000000000000000000010521301655250600315550ustar00rootroot00000000000000# Copyright 2014 Guillaume LE VAILLANT # Distributed under the terms of the GNU General Public License v3 EAPI="5" inherit eutils autotools DESCRIPTION="A bruteforce cracker for LUKS encrypted volumes." HOMEPAGE="https://github.com/glv2/${PN}" SRC_URI="https://github.com/glv2/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz" LICENSE="GPL-3" SLOT="0" KEYWORDS="~amd64 ~arm ~x86" DEPEND=" sys-fs/cryptsetup " RDEPEND="${DEPEND}" src_prepare() { eautoreconf } src_configure() { econf } src_install() { einstall dodoc AUTHORS ChangeLog NEWS README } bruteforce-luks-1.2.2/contrib/gentoo/app-crypt/bruteforce-luks/bruteforce-luks-1.1.ebuild000066400000000000000000000010671301655250600314240ustar00rootroot00000000000000# Copyright 2014 Guillaume LE VAILLANT # Distributed under the terms of the GNU General Public License v3 EAPI="5" inherit eutils autotools DESCRIPTION="A bruteforce cracker for LUKS encrypted volumes." HOMEPAGE="https://github.com/glv2/${PN}" SRC_URI="https://github.com/glv2/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz" LICENSE="GPL-3" SLOT="0" KEYWORDS="~amd64 ~arm ~x86" DEPEND=" sys-fs/cryptsetup " RDEPEND="${DEPEND}" src_prepare() { eautoreconf } src_configure() { econf } src_install() { dobin "${PN}" dodoc AUTHORS ChangeLog COPYING NEWS README } bruteforce-luks-1.2.2/contrib/gentoo/app-crypt/bruteforce-luks/bruteforce-luks-1.2.0.ebuild000066400000000000000000000010521301655250600315550ustar00rootroot00000000000000# Copyright 2014 Guillaume LE VAILLANT # Distributed under the terms of the GNU General Public License v3 EAPI="5" inherit eutils autotools DESCRIPTION="A bruteforce cracker for LUKS encrypted volumes." HOMEPAGE="https://github.com/glv2/${PN}" SRC_URI="https://github.com/glv2/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz" LICENSE="GPL-3" SLOT="0" KEYWORDS="~amd64 ~arm ~x86" DEPEND=" sys-fs/cryptsetup " RDEPEND="${DEPEND}" src_prepare() { eautoreconf } src_configure() { econf } src_install() { einstall dodoc AUTHORS ChangeLog NEWS README } bruteforce-luks-1.2.2/contrib/gentoo/app-crypt/bruteforce-luks/bruteforce-luks-1.2.1.ebuild000066400000000000000000000010521301655250600315560ustar00rootroot00000000000000# Copyright 2014 Guillaume LE VAILLANT # Distributed under the terms of the GNU General Public License v3 EAPI="5" inherit eutils autotools DESCRIPTION="A bruteforce cracker for LUKS encrypted volumes." HOMEPAGE="https://github.com/glv2/${PN}" SRC_URI="https://github.com/glv2/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz" LICENSE="GPL-3" SLOT="0" KEYWORDS="~amd64 ~arm ~x86" DEPEND=" sys-fs/cryptsetup " RDEPEND="${DEPEND}" src_prepare() { eautoreconf } src_configure() { econf } src_install() { einstall dodoc AUTHORS ChangeLog NEWS README } bruteforce-luks-1.2.2/contrib/gentoo/app-crypt/bruteforce-luks/bruteforce-luks-1.2.2.ebuild000066400000000000000000000010521301655250600315570ustar00rootroot00000000000000# Copyright 2014 Guillaume LE VAILLANT # Distributed under the terms of the GNU General Public License v3 EAPI="5" inherit eutils autotools DESCRIPTION="A bruteforce cracker for LUKS encrypted volumes." HOMEPAGE="https://github.com/glv2/${PN}" SRC_URI="https://github.com/glv2/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz" LICENSE="GPL-3" SLOT="0" KEYWORDS="~amd64 ~arm ~x86" DEPEND=" sys-fs/cryptsetup " RDEPEND="${DEPEND}" src_prepare() { eautoreconf } src_configure() { econf } src_install() { einstall dodoc AUTHORS ChangeLog NEWS README } bruteforce-luks-1.2.2/doc/000077500000000000000000000000001301655250600154005ustar00rootroot00000000000000bruteforce-luks-1.2.2/doc/bruteforce-luks.1000066400000000000000000000053371301655250600206060ustar00rootroot00000000000000.TH BRUTEFORCE-LUKS "1" "January 2016" "BRUTEFORCE-LUKS 1.2.0" "Bruteforce LUKS encrypted volume" .SH NAME bruteforce-luks - try to find the password of a LUKS volume .SH SYNOPSIS .B bruteforce-luks [options] .I .SH DESCRIPTION The purpose of this program is to try to find the password of a LUKS encrypted volume. .P It can be used in two ways: .RS .P \(bu brute force attack: try all the possible passwords given a character set. It is especially useful if you know something about the password (i.e. you forgot a part of your password but still remember most of it). Finding the password of a volume without knowing anything about it would take way too much time (unless the password is really short and/or weak). .P \(bu dictionary attack: try all the passwords in a file. .RE .P The program can use several threads (the number of threads can be specified with the .I -t command line option). .P Sending a USR1 signal to a running .B bruteforce-luks process makes it print progress info to standard error and continue. .SH OPTIONS .nf .TP .B -b Beginning of the password. Default: "" .TP .B -e End of the password. Default: "" .TP .B -f Read the passwords from a file instead of generating them. .TP .B -h Show help and quit. .TP .B -l Minimum password length (beginning and end included). Default: 1 .TP .B -m Maximum password length (beginning and end included). Default: 8 .TP .B -s Password character set. Default: "0123456789ABCDEFGHIJKLMNOPQRSTU VWXYZabcdefghijklmnopqrstuvwxyz" .TP .B -t Number of threads to use. Default: 1 .SH EXAMPLES Try to find the password of a LUKS encrypted volume using 4 threads, trying only passwords with 5 characters: .sp .nf bruteforce-luks -t 4 -l 5 -m 5 /dev/sdb1 .P .fi Try to find the password of a LUKS encrypted volume using 8 threads, trying only passwords with 5 to 10 characters beginning with "W4l" and ending with "z": .sp .nf bruteforce-luks -t 8 -l 5 -m 10 -b "W4l" -e "z" /dev/sda2 .P .fi Try to find the password of a LUKS encrypted volume using 8 threads, trying only passwords with 10 characters using the character set "P情8ŭ": .sp .nf bruteforce-luks -t 8 -l 10 -m 10 -s "P情8ŭ" /dev/sdc3 .P .fi Try to find the password of a LUKS encrypted volume using 6 threads, trying the passwords contained in a dictionary file: .sp .nf bruteforce-luks -t 6 -f dictionary.txt /dev/sdd1 .P .fi Instead of passing a block device to the program, you can copy the beginning of the LUKS volume to a file and pass this file to the program: .sp .nf sudo dd if=/dev/sda1 of=/tmp/luks-header bs=1M count=10 bruteforce-luks -t 4 -l 5 -m 5 /tmp/luks-header .P .fi Print progress info: .sp .nf pkill -USR1 -f bruteforce-luks bruteforce-luks-1.2.2/src/000077500000000000000000000000001301655250600154225ustar00rootroot00000000000000bruteforce-luks-1.2.2/src/bruteforce-luks.c000066400000000000000000000425171301655250600207130ustar00rootroot00000000000000/* Bruteforce a LUKS volume. Copyright 2014-2016 Guillaume LE VAILLANT This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #include #include #include #include #include #include #include #include #include #include #include #include #include "version.h" #define LAST_PASS_MAX_SHOWN_LENGTH 256 unsigned char *default_charset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; unsigned char *path = NULL; wchar_t *charset = NULL, *prefix = NULL, *suffix = NULL; unsigned int charset_len, min_len = 1, max_len = 8, prefix_len = 0, suffix_len = 0; FILE *dictionary = NULL; pthread_mutex_t found_password_lock, dictionary_lock; char stop = 0, found_password = 0; unsigned int nb_threads = 1; unsigned char last_pass[LAST_PASS_MAX_SHOWN_LENGTH]; time_t start_time; struct decryption_func_locals { unsigned int index_start; unsigned int index_end; unsigned long long int counter; } *thread_locals; /* * Statistics */ void handle_signal(int signo) { unsigned long long int total_ops = 0; unsigned int i, l; unsigned int l_full = max_len - suffix_len - prefix_len; unsigned int l_skip = min_len - suffix_len - prefix_len; double space = 0; time_t current_time; current_time = time(NULL); if(dictionary == NULL) for(l = l_skip; l <= l_full; l++) space += pow(charset_len, l); for(i = 0; i < nb_threads; i++) total_ops += thread_locals[i].counter; fprintf(stderr, "Tried passwords: %llu\n", total_ops); fprintf(stderr, "Tried passwords per second: %lf\n", (double) total_ops / (current_time - start_time)); fprintf(stderr, "Last tried password: %s\n", last_pass); if(dictionary == NULL) fprintf(stderr, "Total space searched: %lf%%\n", (total_ops / space) * 100); } /* * Decryption */ /* The decryption_func_bruteforce thread function tests all the passwords of the form: * prefix + x + combination + suffix * where x is a character in the range charset[dfargs.index_start] -> charset[dfargs.index_end]. */ void * decryption_func_bruteforce(void *arg) { struct decryption_func_locals *dfargs; wchar_t *password; unsigned char *pwd; unsigned int password_len, pwd_len, index_start, index_end, len, i, j, k; int ret; unsigned int *tab; struct crypt_device *cd; dfargs = (struct decryption_func_locals *) arg; index_start = dfargs->index_start; index_end = dfargs->index_end; /* Load the LUKS volume header */ crypt_init(&cd, path); crypt_load(cd, CRYPT_LUKS1, NULL); /* For every possible length */ for(len = min_len - prefix_len - 1 - suffix_len; len + 1 <= max_len - prefix_len - suffix_len; len++) { /* For every first character in the range we were given */ for(k = index_start; k <= index_end; k++) { password_len = prefix_len + 1 + len + suffix_len; password = (wchar_t *) calloc(password_len + 1, sizeof(wchar_t)); tab = (unsigned int *) calloc(len + 1, sizeof(unsigned int)); if((password == NULL) || (tab == NULL)) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } wcsncpy(password, prefix, prefix_len); password[prefix_len] = charset[k]; wcsncpy(password + prefix_len + 1 + len, suffix, suffix_len); password[password_len] = '\0'; for(i = 0; i <= len; i++) tab[i] = 0; /* Test all the combinations */ while((tab[len] == 0) && (stop == 0)) { for(i = 0; i < len; i++) password[prefix_len + 1 + i] = charset[tab[len - 1 - i]]; pwd_len = wcstombs(NULL, password, 0); pwd = (unsigned char *) malloc(pwd_len + 1); if(pwd == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } wcstombs(pwd, password, pwd_len + 1); snprintf(last_pass, LAST_PASS_MAX_SHOWN_LENGTH, "%s", pwd); /* Decrypt the LUKS volume with the password */ ret = crypt_activate_by_passphrase(cd, NULL, CRYPT_ANY_SLOT, pwd, pwd_len, CRYPT_ACTIVATE_READONLY); dfargs->counter++; if(ret >= 0) { /* We have a positive result */ handle_signal(SIGUSR1); /* Print some stats */ pthread_mutex_lock(&found_password_lock); found_password = 1; printf("Password found: %ls\n", password); stop = 1; pthread_mutex_unlock(&found_password_lock); } else if(ret < -1) { fprintf(stderr, "Error: access to the LUKS volume denied.\n\n"); stop = 1; } free(pwd); if(len == 0) break; tab[0]++; if(tab[0] == charset_len) tab[0] = 0; j = 0; while((j < len) && (tab[j] == 0)) { j++; tab[j]++; if(tab[j] == charset_len) tab[j] = 0; } } free(tab); free(password); } } crypt_free(cd); pthread_exit(NULL); } int read_dictionary_line(unsigned char **line, unsigned int *n) { unsigned int size; int ret; *n = 0; size = 32; *line = (unsigned char *) malloc(size); if(*line == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } pthread_mutex_lock(&dictionary_lock); while(1) { ret = fgetc(dictionary); if(ret == EOF) { if(*n == 0) { free(*line); *line = NULL; pthread_mutex_unlock(&dictionary_lock); return(0); } else break; } if((ret == '\r') || (ret == '\n')) { if(*n == 0) continue; else break; } (*line)[*n] = (unsigned char) ret; (*n)++; if(*n == size) { size *= 2; *line = (unsigned char *) realloc(*line, size); if(*line == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); pthread_mutex_unlock(&dictionary_lock); exit(EXIT_FAILURE); } } } pthread_mutex_unlock(&dictionary_lock); (*line)[*n] = '\0'; return(1); } void * decryption_func_dictionary(void *arg) { struct decryption_func_locals *dfargs; unsigned char *pwd; unsigned int pwd_len; int ret; struct crypt_device *cd; dfargs = (struct decryption_func_locals *) arg; /* Load the LUKS volume header */ crypt_init(&cd, path); crypt_load(cd, CRYPT_LUKS1, NULL); do { ret = read_dictionary_line(&pwd, &pwd_len); if(ret == 0) break; snprintf(last_pass, LAST_PASS_MAX_SHOWN_LENGTH, "%s", pwd); /* Decrypt the LUKS volume with the password */ ret = crypt_activate_by_passphrase(cd, NULL, CRYPT_ANY_SLOT, pwd, pwd_len, CRYPT_ACTIVATE_READONLY); dfargs->counter++; if(ret >= 0) { /* We have a positive result */ handle_signal(SIGUSR1); /* Print some stats */ pthread_mutex_lock(&found_password_lock); found_password = 1; printf("Password found: %s\n", pwd); stop = 1; pthread_mutex_unlock(&found_password_lock); } else if(ret < -1) { fprintf(stderr, "Error: access to the LUKS volume denied.\n\n"); stop = 1; } free(pwd); } while(stop == 0); crypt_free(cd); pthread_exit(NULL); } /* * Check path */ int check_path(char *path) { struct crypt_device *cd; int ret; ret = crypt_init(&cd, path); if(ret < 0) return(0); ret = crypt_load(cd, CRYPT_LUKS1, NULL); if(ret < 0) { crypt_free(cd); return(0); } crypt_free(cd); return(1); } /* * Main */ void usage(char *progname) { fprintf(stderr, "\nbruteforce-luks %s\n\n", VERSION_NUMBER); fprintf(stderr, "Usage: %s [options] \n\n", progname); fprintf(stderr, "Options:\n"); fprintf(stderr, " -b Beginning of the password.\n"); fprintf(stderr, " default: \"\"\n"); fprintf(stderr, " -e End of the password.\n"); fprintf(stderr, " default: \"\"\n"); fprintf(stderr, " -f Read the passwords from a file instead of generating them.\n"); fprintf(stderr, " -h Show help and quit.\n"); fprintf(stderr, " -l Minimum password length (beginning and end included).\n"); fprintf(stderr, " default: 1\n"); fprintf(stderr, " -m Maximum password length (beginning and end included).\n"); fprintf(stderr, " default: 8\n"); fprintf(stderr, " -s Password character set.\n"); fprintf(stderr, " default: \"0123456789ABCDEFGHIJKLMNOPQRSTU\n"); fprintf(stderr, " VWXYZabcdefghijklmnopqrstuvwxyz\"\n"); fprintf(stderr, " -t Number of threads to use.\n"); fprintf(stderr, " default: 1\n"); fprintf(stderr, "\n"); fprintf(stderr, "Sending a USR1 signal to a running bruteforce-luks process\n"); fprintf(stderr, "makes it print progress info to standard error and continue.\n"); fprintf(stderr, "\n"); } int main(int argc, char **argv) { pthread_t *decryption_threads; int i, ret, c; setlocale(LC_ALL, ""); /* Get options and parameters. */ opterr = 0; while((c = getopt(argc, argv, "b:e:f:hl:m:s:t:")) != -1) switch(c) { case 'b': prefix_len = mbstowcs(NULL, optarg, 0); if(prefix_len == (unsigned int) -1) { fprintf(stderr, "Error: invalid character in prefix.\n\n"); exit(EXIT_FAILURE); } prefix = (wchar_t *) calloc(prefix_len + 1, sizeof(wchar_t)); if(prefix == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } mbstowcs(prefix, optarg, prefix_len + 1); break; case 'e': suffix_len = mbstowcs(NULL, optarg, 0); if(suffix_len == (unsigned int) -1) { fprintf(stderr, "Error: invalid character in suffix.\n\n"); exit(EXIT_FAILURE); } suffix = (wchar_t *) calloc(suffix_len + 1, sizeof(wchar_t)); if(suffix == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } mbstowcs(suffix, optarg, suffix_len + 1); break; case 'f': dictionary = fopen(optarg, "r"); if(dictionary == NULL) { fprintf(stderr, "Error: can't open dictionary file.\n\n"); exit(EXIT_FAILURE); } break; case 'h': usage(argv[0]); exit(EXIT_FAILURE); break; case 'l': min_len = (unsigned int) atoi(optarg); break; case 'm': max_len = (unsigned int) atoi(optarg); break; case 's': charset_len = mbstowcs(NULL, optarg, 0); if(charset_len == 0) { fprintf(stderr, "Error: charset must have at least one character.\n\n"); exit(EXIT_FAILURE); } if(charset_len == (unsigned int) -1) { fprintf(stderr, "Error: invalid character in charset.\n\n"); exit(EXIT_FAILURE); } charset = (wchar_t *) calloc(charset_len + 1, sizeof(wchar_t)); if(charset == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } mbstowcs(charset, optarg, charset_len + 1); break; case 't': nb_threads = (unsigned int) atoi(optarg); if(nb_threads == 0) nb_threads = 1; break; default: usage(argv[0]); switch(optopt) { case 'b': case 'e': case 'f': case 'l': case 'm': case 's': case 't': fprintf(stderr, "Error: missing argument for option: '-%c'.\n\n", optopt); break; default: fprintf(stderr, "Error: unknown option: '%c'.\n\n", optopt); break; } exit(EXIT_FAILURE); break; } if(optind >= argc) { usage(argv[0]); fprintf(stderr, "Error: missing path to LUKS volume.\n\n"); exit(EXIT_FAILURE); } path = argv[optind]; /* Check variables */ if(dictionary != NULL) { fprintf(stderr, "Warning: using dictionary mode, ignoring options -b, -e, -l, -m and -s.\n\n"); } else { if(prefix == NULL) { prefix_len = mbstowcs(NULL, "", 0); prefix = (wchar_t *) calloc(prefix_len + 1, sizeof(wchar_t)); if(prefix == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } mbstowcs(prefix, "", prefix_len + 1); } if(suffix == NULL) { suffix_len = mbstowcs(NULL, "", 0); suffix = (wchar_t *) calloc(suffix_len + 1, sizeof(wchar_t)); if(suffix == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } mbstowcs(suffix, "", suffix_len + 1); } if(charset == NULL) { charset_len = mbstowcs(NULL, default_charset, 0); charset = (wchar_t *) calloc(charset_len + 1, sizeof(wchar_t)); if(charset == NULL) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } mbstowcs(charset, default_charset, charset_len + 1); } if(nb_threads > charset_len) { fprintf(stderr, "Warning: number of threads (%u) bigger than character set length (%u). Only using %u threads.\n\n", nb_threads, charset_len, charset_len); nb_threads = charset_len; } if(min_len < prefix_len + suffix_len + 1) { fprintf(stderr, "Warning: minimum length (%u) smaller than the length of specified password characters (%u). Setting minimum length to %u.\n\n", min_len, prefix_len + suffix_len, prefix_len + suffix_len + 1); min_len = prefix_len + suffix_len + 1; } if(max_len < min_len) { fprintf(stderr, "Warning: maximum length (%u) smaller than minimum length (%u). Setting maximum length to %u.\n\n", max_len, min_len, min_len); max_len = min_len; } } last_pass[0] = '\0'; signal(SIGUSR1, handle_signal); /* Check if path points to a LUKS volume */ ret = check_path(path); if(ret == 0) { fprintf(stderr, "Error: either %s is not a valid LUKS volume, or you don't have permission to access it.\n\n", path); exit(EXIT_FAILURE); } pthread_mutex_init(&found_password_lock, NULL); pthread_mutex_init(&dictionary_lock, NULL); /* Start decryption threads. */ decryption_threads = (pthread_t *) malloc(nb_threads * sizeof(pthread_t)); thread_locals = (struct decryption_func_locals *) calloc(nb_threads, sizeof(struct decryption_func_locals)); if((decryption_threads == NULL) || (thread_locals == NULL)) { fprintf(stderr, "Error: memory allocation failed.\n\n"); exit(EXIT_FAILURE); } start_time = time(NULL); for(i = 0; i < nb_threads; i++) { if(dictionary == NULL) { thread_locals[i].index_start = i * (charset_len / nb_threads); if(i == nb_threads - 1) thread_locals[i].index_end = charset_len - 1; else thread_locals[i].index_end = (i + 1) * (charset_len / nb_threads) - 1; ret = pthread_create(&decryption_threads[i], NULL, &decryption_func_bruteforce, &thread_locals[i]); } else { thread_locals[i].index_start = i; ret = pthread_create(&decryption_threads[i], NULL, &decryption_func_dictionary, &thread_locals[i]); } if(ret != 0) { perror("Error: decryption thread"); exit(EXIT_FAILURE); } } for(i = 0; i < nb_threads; i++) { pthread_join(decryption_threads[i], NULL); } if(found_password == 0) { handle_signal(SIGUSR1); /* Print some stats */ fprintf(stderr, "Password not found\n"); } free(thread_locals); free(decryption_threads); pthread_mutex_destroy(&found_password_lock); pthread_mutex_destroy(&dictionary_lock); exit(EXIT_SUCCESS); } bruteforce-luks-1.2.2/src/version.h000066400000000000000000000013771301655250600172700ustar00rootroot00000000000000/* Bruteforce a LUKS volume. Copyright 2014-2016 Guillaume LE VAILLANT This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #ifndef VERSION_H #define VERSION_H 1 #define VERSION_NUMBER "1.2.2" #endif