diff options
Diffstat (limited to 'src/misc/crypt_des.c')
| -rw-r--r-- | src/misc/crypt_des.c | 1021 |
1 files changed, 0 insertions, 1021 deletions
diff --git a/src/misc/crypt_des.c b/src/misc/crypt_des.c deleted file mode 100644 index d7b2b15a..00000000 --- a/src/misc/crypt_des.c +++ /dev/null @@ -1,1021 +0,0 @@ -/* - * This version has been further modified by Rich Felker, primary author - * and maintainer of musl libc, to remove table generation code and - * replaced all runtime-generated constant tables with static-initialized - * tables in the binary, in the interest of minimizing non-shareable - * memory usage and stack size requirements. - */ -/* - * This version is derived from the original implementation of FreeSec - * (release 1.1) by David Burren. I've made it reentrant, reduced its memory - * usage from about 70 KB to about 7 KB (with only minimal performance impact - * and keeping code size about the same), made the handling of invalid salts - * mostly UFC-crypt compatible, added a quick runtime self-test (which also - * serves to zeroize the stack from sensitive data), and added optional tests. - * - Solar Designer <solar at openwall.com> - */ - -/* - * FreeSec: libcrypt for NetBSD - * - * Copyright (c) 1994 David Burren - * Copyright (c) 2000,2002,2010,2012 Solar Designer - * All rights reserved. - * - * 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 above 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. Neither the name of the author nor the names of other contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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. - * - * $Owl: Owl/packages/glibc/crypt_freesec.c,v 1.6 2010/02/20 14:45:06 solar Exp $ - * $Id: crypt.c,v 1.15 1994/09/13 04:58:49 davidb Exp $ - * - * This is an original implementation of the DES and the crypt(3) interfaces - * by David Burren. It has been heavily re-worked by Solar Designer. - */ - -#include <stdint.h> -#include <string.h> - -struct expanded_key { - uint32_t l[16], r[16]; -}; - -#define _PASSWORD_EFMT1 '_' - -static const unsigned char key_shifts[16] = { - 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 -}; - -static const uint32_t psbox[8][64] = { - { - 0x00808200,0x00000000,0x00008000,0x00808202, - 0x00808002,0x00008202,0x00000002,0x00008000, - 0x00000200,0x00808200,0x00808202,0x00000200, - 0x00800202,0x00808002,0x00800000,0x00000002, - 0x00000202,0x00800200,0x00800200,0x00008200, - 0x00008200,0x00808000,0x00808000,0x00800202, - 0x00008002,0x00800002,0x00800002,0x00008002, - 0x00000000,0x00000202,0x00008202,0x00800000, - 0x00008000,0x00808202,0x00000002,0x00808000, - 0x00808200,0x00800000,0x00800000,0x00000200, - 0x00808002,0x00008000,0x00008200,0x00800002, - 0x00000200,0x00000002,0x00800202,0x00008202, - 0x00808202,0x00008002,0x00808000,0x00800202, - 0x00800002,0x00000202,0x00008202,0x00808200, - 0x00000202,0x00800200,0x00800200,0x00000000, - 0x00008002,0x00008200,0x00000000,0x00808002, - },{ - 0x40084010,0x40004000,0x00004000,0x00084010, - 0x00080000,0x00000010,0x40080010,0x40004010, - 0x40000010,0x40084010,0x40084000,0x40000000, - 0x40004000,0x00080000,0x00000010,0x40080010, - 0x00084000,0x00080010,0x40004010,0x00000000, - 0x40000000,0x00004000,0x00084010,0x40080000, - 0x00080010,0x40000010,0x00000000,0x00084000, - 0x00004010,0x40084000,0x40080000,0x00004010, - 0x00000000,0x00084010,0x40080010,0x00080000, - 0x40004010,0x40080000,0x40084000,0x00004000, - 0x40080000,0x40004000,0x00000010,0x40084010, - 0x00084010,0x00000010,0x00004000,0x40000000, - 0x00004010,0x40084000,0x00080000,0x40000010, - 0x00080010,0x40004010,0x40000010,0x00080010, - 0x00084000,0x00000000,0x40004000,0x00004010, - 0x40000000,0x40080010,0x40084010,0x00084000, - },{ - 0x00000104,0x04010100,0x00000000,0x04010004, - 0x04000100,0x00000000,0x00010104,0x04000100, - 0x00010004,0x04000004,0x04000004,0x00010000, - 0x04010104,0x00010004,0x04010000,0x00000104, - 0x04000000,0x00000004,0x04010100,0x00000100, - 0x00010100,0x04010000,0x04010004,0x00010104, - 0x04000104,0x00010100,0x00010000,0x04000104, - 0x00000004,0x04010104,0x00000100,0x04000000, - 0x04010100,0x04000000,0x00010004,0x00000104, - 0x00010000,0x04010100,0x04000100,0x00000000, - 0x00000100,0x00010004,0x04010104,0x04000100, - 0x04000004,0x00000100,0x00000000,0x04010004, - 0x04000104,0x00010000,0x04000000,0x04010104, - 0x00000004,0x00010104,0x00010100,0x04000004, - 0x04010000,0x04000104,0x00000104,0x04010000, - 0x00010104,0x00000004,0x04010004,0x00010100, - },{ - 0x80401000,0x80001040,0x80001040,0x00000040, - 0x00401040,0x80400040,0x80400000,0x80001000, - 0x00000000,0x00401000,0x00401000,0x80401040, - 0x80000040,0x00000000,0x00400040,0x80400000, - 0x80000000,0x00001000,0x00400000,0x80401000, - 0x00000040,0x00400000,0x80001000,0x00001040, - 0x80400040,0x80000000,0x00001040,0x00400040, - 0x00001000,0x00401040,0x80401040,0x80000040, - 0x00400040,0x80400000,0x00401000,0x80401040, - 0x80000040,0x00000000,0x00000000,0x00401000, - 0x00001040,0x00400040,0x80400040,0x80000000, - 0x80401000,0x80001040,0x80001040,0x00000040, - 0x80401040,0x80000040,0x80000000,0x00001000, - 0x80400000,0x80001000,0x00401040,0x80400040, - 0x80001000,0x00001040,0x00400000,0x80401000, - 0x00000040,0x00400000,0x00001000,0x00401040, - },{ - 0x00000080,0x01040080,0x01040000,0x21000080, - 0x00040000,0x00000080,0x20000000,0x01040000, - 0x20040080,0x00040000,0x01000080,0x20040080, - 0x21000080,0x21040000,0x00040080,0x20000000, - 0x01000000,0x20040000,0x20040000,0x00000000, - 0x20000080,0x21040080,0x21040080,0x01000080, - 0x21040000,0x20000080,0x00000000,0x21000000, - 0x01040080,0x01000000,0x21000000,0x00040080, - 0x00040000,0x21000080,0x00000080,0x01000000, - 0x20000000,0x01040000,0x21000080,0x20040080, - 0x01000080,0x20000000,0x21040000,0x01040080, - 0x20040080,0x00000080,0x01000000,0x21040000, - 0x21040080,0x00040080,0x21000000,0x21040080, - 0x01040000,0x00000000,0x20040000,0x21000000, - 0x00040080,0x01000080,0x20000080,0x00040000, - 0x00000000,0x20040000,0x01040080,0x20000080, - },{ - 0x10000008,0x10200000,0x00002000,0x10202008, - 0x10200000,0x00000008,0x10202008,0x00200000, - 0x10002000,0x00202008,0x00200000,0x10000008, - 0x00200008,0x10002000,0x10000000,0x00002008, - 0x00000000,0x00200008,0x10002008,0x00002000, - 0x00202000,0x10002008,0x00000008,0x10200008, - 0x10200008,0x00000000,0x00202008,0x10202000, - 0x00002008,0x00202000,0x10202000,0x10000000, - 0x10002000,0x00000008,0x10200008,0x00202000, - 0x10202008,0x00200000,0x00002008,0x10000008, - 0x00200000,0x10002000,0x10000000,0x00002008, - 0x10000008,0x10202008,0x00202000,0x10200000, - 0x00202008,0x10202000,0x00000000,0x10200008, - 0x00000008,0x00002000,0x10200000,0x00202008, - 0x00002000,0x00200008,0x10002008,0x00000000, - 0x10202000,0x10000000,0x00200008,0x10002008, - },{ - 0x00100000,0x02100001,0x02000401,0x00000000, - 0x00000400,0x02000401,0x00100401,0x02100400, - 0x02100401,0x00100000,0x00000000,0x02000001, - 0x00000001,0x02000000,0x02100001,0x00000401, - 0x02000400,0x00100401,0x00100001,0x02000400, - 0x02000001,0x02100000,0x02100400,0x00100001, - 0x02100000,0x00000400,0x00000401,0x02100401, - 0x00100400,0x00000001,0x02000000,0x00100400, - 0x02000000,0x00100400,0x00100000,0x02000401, - 0x02000401,0x02100001,0x02100001,0x00000001, - 0x00100001,0x02000000,0x02000400,0x00100000, - 0x02100400,0x00000401,0x00100401,0x02100400, - 0x00000401,0x02000001,0x02100401,0x02100000, - 0x00100400,0x00000000,0x00000001,0x02100401, - 0x00000000,0x00100401,0x02100000,0x00000400, - 0x02000001,0x02000400,0x00000400,0x00100001, - },{ - 0x08000820,0x00000800,0x00020000,0x08020820, - 0x08000000,0x08000820,0x00000020,0x08000000, - 0x00020020,0x08020000,0x08020820,0x00020800, - 0x08020800,0x00020820,0x00000800,0x00000020, - 0x08020000,0x08000020,0x08000800,0x00000820, - 0x00020800,0x00020020,0x08020020,0x08020800, - 0x00000820,0x00000000,0x00000000,0x08020020, - 0x08000020,0x08000800,0x00020820,0x00020000, - 0x00020820,0x00020000,0x08020800,0x00000800, - 0x00000020,0x08020020,0x00000800,0x00020820, - 0x08000800,0x00000020,0x08000020,0x08020000, - 0x08020020,0x08000000,0x00020000,0x08000820, - 0x00000000,0x08020820,0x00020020,0x08000020, - 0x08020000,0x08000800,0x08000820,0x00000000, - 0x08020820,0x00020800,0x00020800,0x00000820, - 0x00000820,0x00020020,0x08000000,0x08020800, - }, -}; -static const uint32_t ip_maskl[16][16] = { - { - 0x00000000,0x00010000,0x00000000,0x00010000, - 0x01000000,0x01010000,0x01000000,0x01010000, - 0x00000000,0x00010000,0x00000000,0x00010000, - 0x01000000,0x01010000,0x01000000,0x01010000, - },{ - 0x00000000,0x00000001,0x00000000,0x00000001, - 0x00000100,0x00000101,0x00000100,0x00000101, - 0x00000000,0x00000001,0x00000000,0x00000001, - 0x00000100,0x00000101,0x00000100,0x00000101, - },{ - 0x00000000,0x00020000,0x00000000,0x00020000, - 0x02000000,0x02020000,0x02000000,0x02020000, - 0x00000000,0x00020000,0x00000000,0x00020000, - 0x02000000,0x02020000,0x02000000,0x02020000, - },{ - 0x00000000,0x00000002,0x00000000,0x00000002, - 0x00000200,0x00000202,0x00000200,0x00000202, - 0x00000000,0x00000002,0x00000000,0x00000002, - 0x00000200,0x00000202,0x00000200,0x00000202, - },{ - 0x00000000,0x00040000,0x00000000,0x00040000, - 0x04000000,0x04040000,0x04000000,0x04040000, - 0x00000000,0x00040000,0x00000000,0x00040000, - 0x04000000,0x04040000,0x04000000,0x04040000, - },{ - 0x00000000,0x00000004,0x00000000,0x00000004, - 0x00000400,0x00000404,0x00000400,0x00000404, - 0x00000000,0x00000004,0x00000000,0x00000004, - 0x00000400,0x00000404,0x00000400,0x00000404, - },{ - 0x00000000,0x00080000,0x00000000,0x00080000, - 0x08000000,0x08080000,0x08000000,0x08080000, - 0x00000000,0x00080000,0x00000000,0x00080000, - 0x08000000,0x08080000,0x08000000,0x08080000, - },{ - 0x00000000,0x00000008,0x00000000,0x00000008, - 0x00000800,0x00000808,0x00000800,0x00000808, - 0x00000000,0x00000008,0x00000000,0x00000008, - 0x00000800,0x00000808,0x00000800,0x00000808, - },{ - 0x00000000,0x00100000,0x00000000,0x00100000, - 0x10000000,0x10100000,0x10000000,0x10100000, - 0x00000000,0x00100000,0x00000000,0x00100000, - 0x10000000,0x10100000,0x10000000,0x10100000, - },{ - 0x00000000,0x00000010,0x00000000,0x00000010, - 0x00001000,0x00001010,0x00001000,0x00001010, - 0x00000000,0x00000010,0x00000000,0x00000010, - 0x00001000,0x00001010,0x00001000,0x00001010, - },{ - 0x00000000,0x00200000,0x00000000,0x00200000, - 0x20000000,0x20200000,0x20000000,0x20200000, - 0x00000000,0x00200000,0x00000000,0x00200000, - 0x20000000,0x20200000,0x20000000,0x20200000, - },{ - 0x00000000,0x00000020,0x00000000,0x00000020, - 0x00002000,0x00002020,0x00002000,0x00002020, - 0x00000000,0x00000020,0x00000000,0x00000020, - 0x00002000,0x00002020,0x00002000,0x00002020, - },{ - 0x00000000,0x00400000,0x00000000,0x00400000, - 0x40000000,0x40400000,0x40000000,0x40400000, - 0x00000000,0x00400000,0x00000000,0x00400000, - 0x40000000,0x40400000,0x40000000,0x40400000, - },{ - 0x00000000,0x00000040,0x00000000,0x00000040, - 0x00004000,0x00004040,0x00004000,0x00004040, - 0x00000000,0x00000040,0x00000000,0x00000040, - 0x00004000,0x00004040,0x00004000,0x00004040, - },{ - 0x00000000,0x00800000,0x00000000,0x00800000, - 0x80000000,0x80800000,0x80000000,0x80800000, - 0x00000000,0x00800000,0x00000000,0x00800000, - 0x80000000,0x80800000,0x80000000,0x80800000, - },{ - 0x00000000,0x00000080,0x00000000,0x00000080, - 0x00008000,0x00008080,0x00008000,0x00008080, - 0x00000000,0x00000080,0x00000000,0x00000080, - 0x00008000,0x00008080,0x00008000,0x00008080, - }, -}; -static const uint32_t ip_maskr[16][16] = { - { - 0x00000000,0x00000000,0x00010000,0x00010000, - 0x00000000,0x00000000,0x00010000,0x00010000, - 0x01000000,0x01000000,0x01010000,0x01010000, - 0x01000000,0x01000000,0x01010000,0x01010000, - },{ - 0x00000000,0x00000000,0x00000001,0x00000001, - 0x00000000,0x00000000,0x00000001,0x00000001, - 0x00000100,0x00000100,0x00000101,0x00000101, - 0x00000100,0x00000100,0x00000101,0x00000101, - },{ - 0x00000000,0x00000000,0x00020000,0x00020000, - 0x00000000,0x00000000,0x00020000,0x00020000, - 0x02000000,0x02000000,0x02020000,0x02020000, - 0x02000000,0x02000000,0x02020000,0x02020000, - },{ - 0x00000000,0x00000000,0x00000002,0x00000002, - 0x00000000,0x00000000,0x00000002,0x00000002, - 0x00000200,0x00000200,0x00000202,0x00000202, - 0x00000200,0x00000200,0x00000202,0x00000202, - },{ - 0x00000000,0x00000000,0x00040000,0x00040000, - 0x00000000,0x00000000,0x00040000,0x00040000, - 0x04000000,0x04000000,0x04040000,0x04040000, - 0x04000000,0x04000000,0x04040000,0x04040000, - },{ - 0x00000000,0x00000000,0x00000004,0x00000004, - 0x00000000,0x00000000,0x00000004,0x00000004, - 0x00000400,0x00000400,0x00000404,0x00000404, - 0x00000400,0x00000400,0x00000404,0x00000404, - },{ - 0x00000000,0x00000000,0x00080000,0x00080000, - 0x00000000,0x00000000,0x00080000,0x00080000, - 0x08000000,0x08000000,0x08080000,0x08080000, - 0x08000000,0x08000000,0x08080000,0x08080000, - },{ - 0x00000000,0x00000000,0x00000008,0x00000008, - 0x00000000,0x00000000,0x00000008,0x00000008, - 0x00000800,0x00000800,0x00000808,0x00000808, - 0x00000800,0x00000800,0x00000808,0x00000808, - },{ - 0x00000000,0x00000000,0x00100000,0x00100000, - 0x00000000,0x00000000,0x00100000,0x00100000, - 0x10000000,0x10000000,0x10100000,0x10100000, - 0x10000000,0x10000000,0x10100000,0x10100000, - },{ - 0x00000000,0x00000000,0x00000010,0x00000010, - 0x00000000,0x00000000,0x00000010,0x00000010, - 0x00001000,0x00001000,0x00001010,0x00001010, - 0x00001000,0x00001000,0x00001010,0x00001010, - },{ - 0x00000000,0x00000000,0x00200000,0x00200000, - 0x00000000,0x00000000,0x00200000,0x00200000, - 0x20000000,0x20000000,0x20200000,0x20200000, - 0x20000000,0x20000000,0x20200000,0x20200000, - },{ - 0x00000000,0x00000000,0x00000020,0x00000020, - 0x00000000,0x00000000,0x00000020,0x00000020, - 0x00002000,0x00002000,0x00002020,0x00002020, - 0x00002000,0x00002000,0x00002020,0x00002020, - },{ - 0x00000000,0x00000000,0x00400000,0x00400000, - 0x00000000,0x00000000,0x00400000,0x00400000, - 0x40000000,0x40000000,0x40400000,0x40400000, - 0x40000000,0x40000000,0x40400000,0x40400000, - },{ - 0x00000000,0x00000000,0x00000040,0x00000040, - 0x00000000,0x00000000,0x00000040,0x00000040, - 0x00004000,0x00004000,0x00004040,0x00004040, - 0x00004000,0x00004000,0x00004040,0x00004040, - },{ - 0x00000000,0x00000000,0x00800000,0x00800000, - 0x00000000,0x00000000,0x00800000,0x00800000, - 0x80000000,0x80000000,0x80800000,0x80800000, - 0x80000000,0x80000000,0x80800000,0x80800000, - },{ - 0x00000000,0x00000000,0x00000080,0x00000080, - 0x00000000,0x00000000,0x00000080,0x00000080, - 0x00008000,0x00008000,0x00008080,0x00008080, - 0x00008000,0x00008000,0x00008080,0x00008080, - }, -}; -static const uint32_t fp_maskl[8][16] = { - { - 0x00000000,0x40000000,0x00400000,0x40400000, - 0x00004000,0x40004000,0x00404000,0x40404000, - 0x00000040,0x40000040,0x00400040,0x40400040, - 0x00004040,0x40004040,0x00404040,0x40404040, - },{ - 0x00000000,0x10000000,0x00100000,0x10100000, - 0x00001000,0x10001000,0x00101000,0x10101000, - 0x00000010,0x10000010,0x00100010,0x10100010, - 0x00001010,0x10001010,0x00101010,0x10101010, - },{ - 0x00000000,0x04000000,0x00040000,0x04040000, - 0x00000400,0x04000400,0x00040400,0x04040400, - 0x00000004,0x04000004,0x00040004,0x04040004, - 0x00000404,0x04000404,0x00040404,0x04040404, - },{ - 0x00000000,0x01000000,0x00010000,0x01010000, - 0x00000100,0x01000100,0x00010100,0x01010100, - 0x00000001,0x01000001,0x00010001,0x01010001, - 0x00000101,0x01000101,0x00010101,0x01010101, - },{ - 0x00000000,0x80000000,0x00800000,0x80800000, - 0x00008000,0x80008000,0x00808000,0x80808000, - 0x00000080,0x80000080,0x00800080,0x80800080, - 0x00008080,0x80008080,0x00808080,0x80808080, - },{ - 0x00000000,0x20000000,0x00200000,0x20200000, - 0x00002000,0x20002000,0x00202000,0x20202000, - 0x00000020,0x20000020,0x00200020,0x20200020, - 0x00002020,0x20002020,0x00202020,0x20202020, - },{ - 0x00000000,0x08000000,0x00080000,0x08080000, - 0x00000800,0x08000800,0x00080800,0x08080800, - 0x00000008,0x08000008,0x00080008,0x08080008, - 0x00000808,0x08000808,0x00080808,0x08080808, - },{ - 0x00000000,0x02000000,0x00020000,0x02020000, - 0x00000200,0x02000200,0x00020200,0x02020200, - 0x00000002,0x02000002,0x00020002,0x02020002, - 0x00000202,0x02000202,0x00020202,0x02020202, - }, -}; -static const uint32_t fp_maskr[8][16] = { - { - 0x00000000,0x40000000,0x00400000,0x40400000, - 0x00004000,0x40004000,0x00404000,0x40404000, - 0x00000040,0x40000040,0x00400040,0x40400040, - 0x00004040,0x40004040,0x00404040,0x40404040, - },{ - 0x00000000,0x10000000,0x00100000,0x10100000, - 0x00001000,0x10001000,0x00101000,0x10101000, - 0x00000010,0x10000010,0x00100010,0x10100010, - 0x00001010,0x10001010,0x00101010,0x10101010, - },{ - 0x00000000,0x04000000,0x00040000,0x04040000, - 0x00000400,0x04000400,0x00040400,0x04040400, - 0x00000004,0x04000004,0x00040004,0x04040004, - 0x00000404,0x04000404,0x00040404,0x04040404, - },{ - 0x00000000,0x01000000,0x00010000,0x01010000, - 0x00000100,0x01000100,0x00010100,0x01010100, - 0x00000001,0x01000001,0x00010001,0x01010001, - 0x00000101,0x01000101,0x00010101,0x01010101, - },{ - 0x00000000,0x80000000,0x00800000,0x80800000, - 0x00008000,0x80008000,0x00808000,0x80808000, - 0x00000080,0x80000080,0x00800080,0x80800080, - 0x00008080,0x80008080,0x00808080,0x80808080, - },{ - 0x00000000,0x20000000,0x00200000,0x20200000, - 0x00002000,0x20002000,0x00202000,0x20202000, - 0x00000020,0x20000020,0x00200020,0x20200020, - 0x00002020,0x20002020,0x00202020,0x20202020, - },{ - 0x00000000,0x08000000,0x00080000,0x08080000, - 0x00000800,0x08000800,0x00080800,0x08080800, - 0x00000008,0x08000008,0x00080008,0x08080008, - 0x00000808,0x08000808,0x00080808,0x08080808, - },{ - 0x00000000,0x02000000,0x00020000,0x02020000, - 0x00000200,0x02000200,0x00020200,0x02020200, - 0x00000002,0x02000002,0x00020002,0x02020002, - 0x00000202,0x02000202,0x00020202,0x02020202, - }, -}; -static const uint32_t key_perm_maskl[8][16] = { - { - 0x00000000,0x00000000,0x00000010,0x00000010, - 0x00001000,0x00001000,0x00001010,0x00001010, - 0x00100000,0x00100000,0x00100010,0x00100010, - 0x00101000,0x00101000,0x00101010,0x00101010, - },{ - 0x00000000,0x00000000,0x00000020,0x00000020, - 0x00002000,0x00002000,0x00002020,0x00002020, - 0x00200000,0x00200000,0x00200020,0x00200020, - 0x00202000,0x00202000,0x00202020,0x00202020, - },{ - 0x00000000,0x00000000,0x00000040,0x00000040, - 0x00004000,0x00004000,0x00004040,0x00004040, - 0x00400000,0x00400000,0x00400040,0x00400040, - 0x00404000,0x00404000,0x00404040,0x00404040, - },{ - 0x00000000,0x00000000,0x00000080,0x00000080, - 0x00008000,0x00008000,0x00008080,0x00008080, - 0x00800000,0x00800000,0x00800080,0x00800080, - 0x00808000,0x00808000,0x00808080,0x00808080, - },{ - 0x00000000,0x00000001,0x00000100,0x00000101, - 0x00010000,0x00010001,0x00010100,0x00010101, - 0x01000000,0x01000001,0x01000100,0x01000101, - 0x01010000,0x01010001,0x01010100,0x01010101, - },{ - 0x00000000,0x00000002,0x00000200,0x00000202, - 0x00020000,0x00020002,0x00020200,0x00020202, - 0x02000000,0x02000002,0x02000200,0x02000202, - 0x02020000,0x02020002,0x02020200,0x02020202, - },{ - 0x00000000,0x00000004,0x00000400,0x00000404, - 0x00040000,0x00040004,0x00040400,0x00040404, - 0x04000000,0x04000004,0x04000400,0x04000404, - 0x04040000,0x04040004,0x04040400,0x04040404, - },{ - 0x00000000,0x00000008,0x00000800,0x00000808, - 0x00080000,0x00080008,0x00080800,0x00080808, - 0x08000000,0x08000008,0x08000800,0x08000808, - 0x08080000,0x08080008,0x08080800,0x08080808, - }, -}; -static const uint32_t key_perm_maskr[12][16] = { - { - 0x00000000,0x00000001,0x00000000,0x00000001, - 0x00000000,0x00000001,0x00000000,0x00000001, - 0x00000000,0x00000001,0x00000000,0x00000001, - 0x00000000,0x00000001,0x00000000,0x00000001, - },{ - 0x00000000,0x00000000,0x00100000,0x00100000, - 0x00001000,0x00001000,0x00101000,0x00101000, - 0x00000010,0x00000010,0x00100010,0x00100010, - 0x00001010,0x00001010,0x00101010,0x00101010, - },{ - 0x00000000,0x00000002,0x00000000,0x00000002, - 0x00000000,0x00000002,0x00000000,0x00000002, - 0x00000000,0x00000002,0x00000000,0x00000002, - 0x00000000,0x00000002,0x00000000,0x00000002, - },{ - 0x00000000,0x00000000,0x00200000,0x00200000, - 0x00002000,0x00002000,0x00202000,0x00202000, - 0x00000020,0x00000020,0x00200020,0x00200020, - 0x00002020,0x00002020,0x00202020,0x00202020, - },{ - 0x00000000,0x00000004,0x00000000,0x00000004, - 0x00000000,0x00000004,0x00000000,0x00000004, - 0x00000000,0x00000004,0x00000000,0x00000004, - 0x00000000,0x00000004,0x00000000,0x00000004, - },{ - 0x00000000,0x00000000,0x00400000,0x00400000, - 0x00004000,0x00004000,0x00404000,0x00404000, - 0x00000040,0x00000040,0x00400040,0x00400040, - 0x00004040,0x00004040,0x00404040,0x00404040, - },{ - 0x00000000,0x00000008,0x00000000,0x00000008, - 0x00000000,0x00000008,0x00000000,0x00000008, - 0x00000000,0x00000008,0x00000000,0x00000008, - 0x00000000,0x00000008,0x00000000,0x00000008, - },{ - 0x00000000,0x00000000,0x00800000,0x00800000, - 0x00008000,0x00008000,0x00808000,0x00808000, - 0x00000080,0x00000080,0x00800080,0x00800080, - 0x00008080,0x00008080,0x00808080,0x00808080, - },{ - 0x00000000,0x00000000,0x01000000,0x01000000, - 0x00010000,0x00010000,0x01010000,0x01010000, - 0x00000100,0x00000100,0x01000100,0x01000100, - 0x00010100,0x00010100,0x01010100,0x01010100, - },{ - 0x00000000,0x00000000,0x02000000,0x02000000, - 0x00020000,0x00020000,0x02020000,0x02020000, - 0x00000200,0x00000200,0x02000200,0x02000200, - 0x00020200,0x00020200,0x02020200,0x02020200, - },{ - 0x00000000,0x00000000,0x04000000,0x04000000, - 0x00040000,0x00040000,0x04040000,0x04040000, - 0x00000400,0x00000400,0x04000400,0x04000400, - 0x00040400,0x00040400,0x04040400,0x04040400, - },{ - 0x00000000,0x00000000,0x08000000,0x08000000, - 0x00080000,0x00080000,0x08080000,0x08080000, - 0x00000800,0x00000800,0x08000800,0x08000800, - 0x00080800,0x00080800,0x08080800,0x08080800, - }, -}; -static const uint32_t comp_maskl0[4][8] = { - { - 0x00000000,0x00020000,0x00000001,0x00020001, - 0x00080000,0x000a0000,0x00080001,0x000a0001, - },{ - 0x00000000,0x00001000,0x00000000,0x00001000, - 0x00000040,0x00001040,0x00000040,0x00001040, - },{ - 0x00000000,0x00400000,0x00000020,0x00400020, - 0x00008000,0x00408000,0x00008020,0x00408020, - },{ - 0x00000000,0x00100000,0x00000800,0x00100800, - 0x00000000,0x00100000,0x00000800,0x00100800, - }, -}; -static const uint32_t comp_maskr0[4][8] = { - { - 0x00000000,0x00200000,0x00020000,0x00220000, - 0x00000002,0x00200002,0x00020002,0x00220002, - },{ - 0x00000000,0x00000000,0x00100000,0x00100000, - 0x00000004,0x00000004,0x00100004,0x00100004, - },{ - 0x00000000,0x00004000,0x00000800,0x00004800, - 0x00000000,0x00004000,0x00000800,0x00004800, - },{ - 0x00000000,0x00400000,0x00008000,0x00408000, - 0x00000008,0x00400008,0x00008008,0x00408008, - }, -}; -static const uint32_t comp_maskl1[4][16] = { - { - 0x00000000,0x00000010,0x00004000,0x00004010, - 0x00040000,0x00040010,0x00044000,0x00044010, - 0x00000100,0x00000110,0x00004100,0x00004110, - 0x00040100,0x00040110,0x00044100,0x00044110, - },{ - 0x00000000,0x00800000,0x00000002,0x00800002, - 0x00000200,0x00800200,0x00000202,0x00800202, - 0x00200000,0x00a00000,0x00200002,0x00a00002, - 0x00200200,0x00a00200,0x00200202,0x00a00202, - },{ - 0x00000000,0x00002000,0x00000004,0x00002004, - 0x00000400,0x00002400,0x00000404,0x00002404, - 0x00000000,0x00002000,0x00000004,0x00002004, - 0x00000400,0x00002400,0x00000404,0x00002404, - },{ - 0x00000000,0x00010000,0x00000008,0x00010008, - 0x00000080,0x00010080,0x00000088,0x00010088, - 0x00000000,0x00010000,0x00000008,0x00010008, - 0x00000080,0x00010080,0x00000088,0x00010088, - }, -}; -static const uint32_t comp_maskr1[4][16] = { - { - 0x00000000,0x00000000,0x00000080,0x00000080, - 0x00002000,0x00002000,0x00002080,0x00002080, - 0x00000001,0x00000001,0x00000081,0x00000081, - 0x00002001,0x00002001,0x00002081,0x00002081, - },{ - 0x00000000,0x00000010,0x00800000,0x00800010, - 0x00010000,0x00010010,0x00810000,0x00810010, - 0x00000200,0x00000210,0x00800200,0x00800210, - 0x00010200,0x00010210,0x00810200,0x00810210, - },{ - 0x00000000,0x00000400,0x00001000,0x00001400, - 0x00080000,0x00080400,0x00081000,0x00081400, - 0x00000020,0x00000420,0x00001020,0x00001420, - 0x00080020,0x00080420,0x00081020,0x00081420, - },{ - 0x00000000,0x00000100,0x00040000,0x00040100, - 0x00000000,0x00000100,0x00040000,0x00040100, - 0x00000040,0x00000140,0x00040040,0x00040140, - 0x00000040,0x00000140,0x00040040,0x00040140, - }, -}; - -static const unsigned char ascii64[] = - "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; -/* 0000000000111111111122222222223333333333444444444455555555556666 */ -/* 0123456789012345678901234567890123456789012345678901234567890123 */ - -/* - * We match the behavior of UFC-crypt on systems where "char" is signed by - * default (the majority), regardless of char's signedness on our system. - */ -static uint32_t ascii_to_bin(int ch) -{ - int sch = (ch < 0x80) ? ch : -(0x100 - ch); - int retval; - - retval = sch - '.'; - if (sch >= 'A') { - retval = sch - ('A' - 12); - if (sch >= 'a') - retval = sch - ('a' - 38); - } - retval &= 0x3f; - - return retval; -} - -/* - * When we choose to "support" invalid salts, nevertheless disallow those - * containing characters that would violate the passwd file format. - */ -static inline int ascii_is_unsafe(unsigned char ch) -{ - return !ch || ch == '\n' || ch == ':'; -} - -static uint32_t setup_salt(uint32_t salt) -{ - uint32_t obit, saltbit, saltbits; - unsigned int i; - - saltbits = 0; - saltbit = 1; - obit = 0x800000; - for (i = 0; i < 24; i++) { - if (salt & saltbit) - saltbits |= obit; - saltbit <<= 1; - obit >>= 1; - } - - return saltbits; -} - -static void des_setkey(const unsigned char *key, struct expanded_key *ekey) -{ - uint32_t k0, k1, rawkey0, rawkey1; - unsigned int shifts, round, i, ibit; - - rawkey0 = - (uint32_t)key[3] | - ((uint32_t)key[2] << 8) | - ((uint32_t)key[1] << 16) | - ((uint32_t)key[0] << 24); - rawkey1 = - (uint32_t)key[7] | - ((uint32_t)key[6] << 8) | - ((uint32_t)key[5] << 16) | - ((uint32_t)key[4] << 24); - - /* - * Do key permutation and split into two 28-bit subkeys. - */ - k0 = k1 = 0; - for (i = 0, ibit = 28; i < 4; i++, ibit -= 4) { - unsigned int j = i << 1; - k0 |= key_perm_maskl[i][(rawkey0 >> ibit) & 0xf] | - key_perm_maskl[i + 4][(rawkey1 >> ibit) & 0xf]; - k1 |= key_perm_maskr[j][(rawkey0 >> ibit) & 0xf]; - ibit -= 4; - k1 |= key_perm_maskr[j + 1][(rawkey0 >> ibit) & 0xf] | - key_perm_maskr[i + 8][(rawkey1 >> ibit) & 0xf]; - } - - /* - * Rotate subkeys and do compression permutation. - */ - shifts = 0; - for (round = 0; round < 16; round++) { - uint32_t t0, t1; - uint32_t kl, kr; - - shifts += key_shifts[round]; - - t0 = (k0 << shifts) | (k0 >> (28 - shifts)); - t1 = (k1 << shifts) | (k1 >> (28 - shifts)); - - kl = kr = 0; - ibit = 25; - for (i = 0; i < 4; i++) { - kl |= comp_maskl0[i][(t0 >> ibit) & 7]; - kr |= comp_maskr0[i][(t1 >> ibit) & 7]; - ibit -= 4; - kl |= comp_maskl1[i][(t0 >> ibit) & 0xf]; - kr |= comp_maskr1[i][(t1 >> ibit) & 0xf]; - ibit -= 3; - } - ekey->l[round] = kl; - ekey->r[round] = kr; - } -} - -/* - * l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format. - */ -static void do_des(uint32_t l_in, uint32_t r_in, - uint32_t *l_out, uint32_t *r_out, - uint32_t count, uint32_t saltbits, const struct expanded_key *ekey) -{ - uint32_t l, r; - - /* - * Do initial permutation (IP). - */ - l = r = 0; - if (l_in | r_in) { - unsigned int i, ibit; - for (i = 0, ibit = 28; i < 8; i++, ibit -= 4) { - l |= ip_maskl[i][(l_in >> ibit) & 0xf] | - ip_maskl[i + 8][(r_in >> ibit) & 0xf]; - r |= ip_maskr[i][(l_in >> ibit) & 0xf] | - ip_maskr[i + 8][(r_in >> ibit) & 0xf]; - } - } - - while (count--) { - /* - * Do each round. - */ - unsigned int round = 16; - const uint32_t *kl = ekey->l; - const uint32_t *kr = ekey->r; - uint32_t f; - while (round--) { - uint32_t r48l, r48r; - /* - * Expand R to 48 bits (simulate the E-box). - */ - r48l = ((r & 0x00000001) << 23) - | ((r & 0xf8000000) >> 9) - | ((r & 0x1f800000) >> 11) - | ((r & 0x01f80000) >> 13) - | ((r & 0x001f8000) >> 15); - - r48r = ((r & 0x0001f800) << 7) - | ((r & 0x00001f80) << 5) - | ((r & 0x000001f8) << 3) - | ((r & 0x0000001f) << 1) - | ((r & 0x80000000) >> 31); - /* - * Do salting for crypt() and friends, and - * XOR with the permuted key. - */ - f = (r48l ^ r48r) & saltbits; - r48l ^= f ^ *kl++; - r48r ^= f ^ *kr++; - /* - * Do S-box lookups (which shrink it back to 32 bits) - * and do the P-box permutation at the same time. - */ - f = psbox[0][r48l >> 18] - | psbox[1][(r48l >> 12) & 0x3f] - | psbox[2][(r48l >> 6) & 0x3f] - | psbox[3][r48l & 0x3f] - | psbox[4][r48r >> 18] - | psbox[5][(r48r >> 12) & 0x3f] - | psbox[6][(r48r >> 6) & 0x3f] - | psbox[7][r48r & 0x3f]; - /* - * Now that we've permuted things, complete f(). - */ - f ^= l; - l = r; - r = f; - } - r = l; - l = f; - } - - /* - * Do final permutation (inverse of IP). - */ - { - unsigned int i, ibit; - uint32_t lo, ro; - lo = ro = 0; - for (i = 0, ibit = 28; i < 4; i++, ibit -= 4) { - ro |= fp_maskr[i][(l >> ibit) & 0xf] | - fp_maskr[i + 4][(r >> ibit) & 0xf]; - ibit -= 4; - lo |= fp_maskl[i][(l >> ibit) & 0xf] | - fp_maskl[i + 4][(r >> ibit) & 0xf]; - } - *l_out = lo; - *r_out = ro; - } -} - -static void des_cipher(const unsigned char *in, unsigned char *out, - uint32_t count, uint32_t saltbits, const struct expanded_key *ekey) -{ - uint32_t l_out, r_out, rawl, rawr; - - rawl = - (uint32_t)in[3] | - ((uint32_t)in[2] << 8) | - ((uint32_t)in[1] << 16) | - ((uint32_t)in[0] << 24); - rawr = - (uint32_t)in[7] | - ((uint32_t)in[6] << 8) | - ((uint32_t)in[5] << 16) | - ((uint32_t)in[4] << 24); - - do_des(rawl, rawr, &l_out, &r_out, count, saltbits, ekey); - - out[0] = l_out >> 24; - out[1] = l_out >> 16; - out[2] = l_out >> 8; - out[3] = l_out; - out[4] = r_out >> 24; - out[5] = r_out >> 16; - out[6] = r_out >> 8; - out[7] = r_out; -} - -static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char *output) -{ - const unsigned char *key = (const unsigned char *)_key; - const unsigned char *setting = (const unsigned char *)_setting; - struct expanded_key ekey; - union { - unsigned char c[8]; - uint32_t i[2]; - } keybuf; - unsigned char *p, *q; - uint32_t count, salt, l, r0, r1; - unsigned int i; - - /* - * Copy the key, shifting each character left by one bit and padding - * with zeroes. - */ - q = keybuf.c; - while (q <= &keybuf.c[sizeof(keybuf.c) - 1]) { - *q++ = *key << 1; - if (*key) - key++; - } - des_setkey(keybuf.c, &ekey); - - if (*setting == _PASSWORD_EFMT1) { - /* - * "new"-style: - * setting - underscore, 4 chars of count, 4 chars of salt - * key - unlimited characters - */ - for (i = 1, count = 0; i < 5; i++) { - uint32_t value = ascii_to_bin(setting[i]); - if (ascii64[value] != setting[i]) - return NULL; - count |= value << (i - 1) * 6; - } - if (!count || count > 262143) - return NULL; - - for (i = 5, salt = 0; i < 9; i++) { - uint32_t value = ascii_to_bin(setting[i]); - if (ascii64[value] != setting[i]) - return NULL; - salt |= value << (i - 5) * 6; - } - - while (*key) { - /* - * Encrypt the key with itself. - */ - des_cipher(keybuf.c, keybuf.c, 1, 0, &ekey); - /* - * And XOR with the next 8 characters of the key. - */ - q = keybuf.c; - while (q <= &keybuf.c[sizeof(keybuf.c) - 1] && *key) - *q++ ^= *key++ << 1; - des_setkey(keybuf.c, &ekey); - } - - memcpy(output, setting, 9); - output[9] = '\0'; - p = (unsigned char *)output + 9; - } else { - /* - * "old"-style: - * setting - 2 chars of salt - * key - up to 8 characters - */ - count = 25; - - if (ascii_is_unsafe(setting[0]) || ascii_is_unsafe(setting[1])) - return NULL; - - salt = (ascii_to_bin(setting[1]) << 6) - | ascii_to_bin(setting[0]); - - output[0] = setting[0]; - output[1] = setting[1]; - p = (unsigned char *)output + 2; - } - - /* - * Do it. - */ - do_des(0, 0, &r0, &r1, count, setup_salt(salt), &ekey); - - /* - * Now encode the result... - */ - l = (r0 >> 8); - *p++ = ascii64[(l >> 18) & 0x3f]; - *p++ = ascii64[(l >> 12) & 0x3f]; - *p++ = ascii64[(l >> 6) & 0x3f]; - *p++ = ascii64[l & 0x3f]; - - l = (r0 << 16) | ((r1 >> 16) & 0xffff); - *p++ = ascii64[(l >> 18) & 0x3f]; - *p++ = ascii64[(l >> 12) & 0x3f]; - *p++ = ascii64[(l >> 6) & 0x3f]; - *p++ = ascii64[l & 0x3f]; - - l = r1 << 2; - *p++ = ascii64[(l >> 12) & 0x3f]; - *p++ = ascii64[(l >> 6) & 0x3f]; - *p++ = ascii64[l & 0x3f]; - *p = 0; - - return output; -} - -char *__crypt_des(const char *key, const char *setting, char *output) -{ - const char *test_key = "\x80\xff\x80\x01 " - "\x7f\x81\x80\x80\x0d\x0a\xff\x7f \x81 test"; - const char *test_setting = "_0.../9Zz"; - const char *test_hash = "_0.../9ZzX7iSJNd21sU"; - char test_buf[21]; - char *retval; - const char *p; - - if (*setting != _PASSWORD_EFMT1) { - test_setting = "\x80x"; - test_hash = "\x80x22/wK52ZKGA"; - } - - /* - * Hash the supplied password. - */ - retval = _crypt_extended_r_uut(key, setting, output); - - /* - * Perform a quick self-test. It is important that we make both calls - * to _crypt_extended_r_uut() from the same scope such that they likely - * use the same stack locations, which makes the second call overwrite - * the first call's sensitive data on the stack and makes it more - * likely that any alignment related issues would be detected. - */ - p = _crypt_extended_r_uut(test_key, test_setting, test_buf); - if (p && !strcmp(p, test_hash) && retval) - return retval; - - return (setting[0]=='*') ? "x" : "*"; -} |