This is the Debian GNU/Linux prepackaged version of libxcrypt. It has been packaged by Marco d'Itri <md@linux.it>. Original sources were obtained from: https://github.com/besser82/libxcrypt On Debian systems the complete text of the licenses can be found in /usr/share/common-licenses/ . # Detailed copyright and licensing information for libxcrypt The overall license for libxcrypt is the GNU Lesser General Public License, version 2.1 (or, at your option, any later version); see the file COPYING.LIB for the full terms of this license. Many individual files are under other licenses. This file provides an inventory of the copyright holders and licenses of all files in the source tree. For specific licensing terms consult the files themselves. * Copyright Thorsten Kukuk, Björn Esser, Zack Weinberg; LGPL (v2.1 or later): crypt.c, crypt-static.c, crypt-gensalt-static.c, crypt-port.h * Copyright Free Software Foundation, Inc.; LGPL (v2.1 or later): crypt.h, crypt-obsolete.h, crypt-md5.c, test-badsalt.c, test-crypt-nonnull.c * Copyright David Burren et al.; 3-clause BSD: alg-des.h, alg-des.c, alg-des-tables.c, crypt-des.c, crypt-des-obsolete.c, gen-des-tables.c * Public domain, written by Ulrich Drepper et al.: crypt-sha256.c, crypt-sha512.c * Public domain, written by Solar Designer et al.: alg-md4.h, alg-md4.c, alg-md5.h, alg-md5.c, crypt-bcrypt.c, crypt-gensalt.c, test-crypt-bcrypt.c * Copyright Solar Designer, Colin Percival; 0-clause BSD: alg-yescrypt-common.c, alg-yescrypt-platform.c * Copyright Solar Designer, Colin Percival; 2-clause BSD: alg-sha256.c, alg-sha256.h, alg-yescrypt.h, alg-yescrypt-opt.c, alg-yescrypt-sysendian.h * Copyright Colin Percival; 2-clause BSD: alg-sha512.h, alg-sha512.c * Copyright Alexey Degtyarev; 2-clause BSD: alg-gost3411-2012-const.h, alg-gost3411-2012-core.c, alg-gost3411-2012-core.h, alg-gost3411-2012-precalc.h, alg-gost3411-2012-ref.h * Copyright Vitaly Chikunov, Björn Esser; 0-clause BSD: alg-gost3411-2012-hmac.c, alg-gost3411-2012-hmac.h, crypt-gost-yescrypt.c, test-alg-gost3411-2012.c, test-alg-gost3411-2012-hmac.c, test-crypt-gost-yescrypt.c, test-crypt-scrypt.c * Copyright Alexander Peslyak; 0-clause BSD: test-alg-yescrypt.c * Copyright Alexander Peslyak, Björn Esser; 0-clause BSD: crypt-scrypt.c * Copyright Björn Esser; 0-clause BSD: crypt-common.c, test-checksalt.c, test-compile-strong-alias.c, test-gensalt-nthash.c, test-short-outbuf.c, test-special-char-salt.c * Copyright Michael Bretterklieber, Björn Esser et al.; 2-clause BSD: crypt-nthash.c * Copyright Zack Weinberg; 2-clause BSD: crypt-sunmd5.c * Public domain, written by Steve Reid et al.: alg-sha1.c, alg-sha1.h, test-alg-sha1.c * Copyright Juniper Networks, Inc.; 3-clause BSD: crypt-pbkdf1-sha1.c, crypt-pbkdf1-sha1.c * Copyright Björn Esser; 2-clause BSD: alg-hmac-sha1.c, alg-hmac-sha1.h, test-alg-hmac-sha1.c * Public domain, written by Zack Weinberg et al.: byteorder.h, randombytes.c, test-byteorder.c test-alg-pbkdf-hmac-sha256.c test-badsetting.c, test-crypt-badargs.c, test-getrandom-fallbacks.c, test-getrandom-interface.c, test-symbols-compat.sh, test-symbols-renames.sh, test-symbols-static.sh, build-aux/gen-crypt-h, build-aux/gen-crypt-symbol-vers-h, build-aux/gen-libcrypt-map, build-aux/skip-if-exec-format-error, build-aux/zw_alignment.m4, build-aux/zw_static_assert.m4, build-aux/zw_endianness.m4, build-aux/zw_ld_wrap.m4 * Copyright Zack Weinberg and Free Software Foundation, Inc; GPL (v3 or later), with Autoconf exception: build-aux/zw_automodern.m4, build-aux/zw_simple_warnings.m4 * Copyright <vt at altlinux.org>; 0-clause BSD: crypt-yescrypt.c, test-crypt-yescrypt.c * Copyright Kevin Cernekee; FSF All Permissive License: build-aux/ax_check_vscript.m4 * Copyright Maarten Bosmans; FSF All Permissive License: build-aux/ax_append_compile_flags.m4 * Copyright Guido U. Draheim, Maarten Bosmans; FSF All Permissive License: build-aux/ax_append_flag.m4, build-aux/ax_check_compile_flag.m4 * Copyright Mike Frysinger; FSF All Permissive License: build-aux/ax_require_defined.m4 * Copyright Scott James Remnant, Dan Nicholson; GPL (v2 or later), with Autoconf exception: build-aux/pkg_installdir_compat.m4 * Copyright Tim Toolan; FSF All Permissive License: build-aux/ax_compare_version.m4 * Copyright Philip Withnall; FSF All Permissive License: build-aux/ax_valgrind_check.m4 * Copyright Steven G. Johnson, Daniel Richard G.; GPL (v3 or later), with Autoconf exception: build-aux/ax_pthread.m4 * Copyright Francesco Salvestrini; FSF All Permissive License: build-aux/ax_prog_python_version.m4 * Copyright Andrew Collier; FSF All Permissive License: build-aux/ax_python_module.m4 * Copyright holders unknown, no statement of license (all of these files are part of the testsuite and do not contribute to the installed library or its headers): test-alg-des.c, test-alg-md4.c (adaption of test-alg-md5.c), test-alg-md5.c, test-alg-sha256.c, test-alg-sha512.c, test-crypt-des.c, test-crypt-md5.c, test-crypt-sha256.c, test-crypt-sha512.c, test-des-cases.h, test-des-obsolete{,_r}.c, test-gensalt.c, test-crypt-nthash.c (adaption of test-crypt-des.c), test-crypt-sunmd5.c (adaption of test-crypt-des.c), test-crypt-pbkdf1-sha1.c (adaption of test-crypt-des.c) * The NEWS file formerly contained the following copyright assertions: Copyright 2002, 2003, 2004 SuSE Linux AG, Germany Copyright 2005, 2008, 2009 2011 SUSE LINUX Products GmbH, Germany Copyright 2015 Björn Esser These were meant to apply to the library as a whole rather than specific files or portions of files.