| /* |
| * DES encryption/decryption |
| * Copyright (c) 2007 Reimar Doeffinger |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| #include <inttypes.h> |
| #include "avutil.h" |
| #include "common.h" |
| #include "intreadwrite.h" |
| #include "mem.h" |
| #include "des.h" |
| |
| #define T(a, b, c, d, e, f, g, h) 64-a,64-b,64-c,64-d,64-e,64-f,64-g,64-h |
| static const uint8_t IP_shuffle[] = { |
| T(58, 50, 42, 34, 26, 18, 10, 2), |
| T(60, 52, 44, 36, 28, 20, 12, 4), |
| T(62, 54, 46, 38, 30, 22, 14, 6), |
| T(64, 56, 48, 40, 32, 24, 16, 8), |
| T(57, 49, 41, 33, 25, 17, 9, 1), |
| T(59, 51, 43, 35, 27, 19, 11, 3), |
| T(61, 53, 45, 37, 29, 21, 13, 5), |
| T(63, 55, 47, 39, 31, 23, 15, 7) |
| }; |
| #undef T |
| |
| #if CONFIG_SMALL || defined(GENTABLES) |
| #define T(a, b, c, d) 32-a,32-b,32-c,32-d |
| static const uint8_t P_shuffle[] = { |
| T(16, 7, 20, 21), |
| T(29, 12, 28, 17), |
| T( 1, 15, 23, 26), |
| T( 5, 18, 31, 10), |
| T( 2, 8, 24, 14), |
| T(32, 27, 3, 9), |
| T(19, 13, 30, 6), |
| T(22, 11, 4, 25) |
| }; |
| #undef T |
| #endif |
| |
| #define T(a, b, c, d, e, f, g) 64-a,64-b,64-c,64-d,64-e,64-f,64-g |
| static const uint8_t PC1_shuffle[] = { |
| T(57, 49, 41, 33, 25, 17, 9), |
| T( 1, 58, 50, 42, 34, 26, 18), |
| T(10, 2, 59, 51, 43, 35, 27), |
| T(19, 11, 3, 60, 52, 44, 36), |
| T(63, 55, 47, 39, 31, 23, 15), |
| T( 7, 62, 54, 46, 38, 30, 22), |
| T(14, 6, 61, 53, 45, 37, 29), |
| T(21, 13, 5, 28, 20, 12, 4) |
| }; |
| #undef T |
| |
| #define T(a, b, c, d, e, f) 56-a,56-b,56-c,56-d,56-e,56-f |
| static const uint8_t PC2_shuffle[] = { |
| T(14, 17, 11, 24, 1, 5), |
| T( 3, 28, 15, 6, 21, 10), |
| T(23, 19, 12, 4, 26, 8), |
| T(16, 7, 27, 20, 13, 2), |
| T(41, 52, 31, 37, 47, 55), |
| T(30, 40, 51, 45, 33, 48), |
| T(44, 49, 39, 56, 34, 53), |
| T(46, 42, 50, 36, 29, 32) |
| }; |
| #undef T |
| |
| #if CONFIG_SMALL |
| static const uint8_t S_boxes[8][32] = { |
| { |
| 0x0e, 0xf4, 0x7d, 0x41, 0xe2, 0x2f, 0xdb, 0x18, 0xa3, 0x6a, 0xc6, 0xbc, 0x95, 0x59, 0x30, 0x87, |
| 0xf4, 0xc1, 0x8e, 0x28, 0x4d, 0x96, 0x12, 0x7b, 0x5f, 0xbc, 0x39, 0xe7, 0xa3, 0x0a, 0x65, 0xd0, |
| }, { |
| 0x3f, 0xd1, 0x48, 0x7e, 0xf6, 0x2b, 0x83, 0xe4, 0xc9, 0x07, 0x12, 0xad, 0x6c, 0x90, 0xb5, 0x5a, |
| 0xd0, 0x8e, 0xa7, 0x1b, 0x3a, 0xf4, 0x4d, 0x21, 0xb5, 0x68, 0x7c, 0xc6, 0x09, 0x53, 0xe2, 0x9f, |
| }, { |
| 0xda, 0x70, 0x09, 0x9e, 0x36, 0x43, 0x6f, 0xa5, 0x21, 0x8d, 0x5c, 0xe7, 0xcb, 0xb4, 0xf2, 0x18, |
| 0x1d, 0xa6, 0xd4, 0x09, 0x68, 0x9f, 0x83, 0x70, 0x4b, 0xf1, 0xe2, 0x3c, 0xb5, 0x5a, 0x2e, 0xc7, |
| }, { |
| 0xd7, 0x8d, 0xbe, 0x53, 0x60, 0xf6, 0x09, 0x3a, 0x41, 0x72, 0x28, 0xc5, 0x1b, 0xac, 0xe4, 0x9f, |
| 0x3a, 0xf6, 0x09, 0x60, 0xac, 0x1b, 0xd7, 0x8d, 0x9f, 0x41, 0x53, 0xbe, 0xc5, 0x72, 0x28, 0xe4, |
| }, { |
| 0xe2, 0xbc, 0x24, 0xc1, 0x47, 0x7a, 0xdb, 0x16, 0x58, 0x05, 0xf3, 0xaf, 0x3d, 0x90, 0x8e, 0x69, |
| 0xb4, 0x82, 0xc1, 0x7b, 0x1a, 0xed, 0x27, 0xd8, 0x6f, 0xf9, 0x0c, 0x95, 0xa6, 0x43, 0x50, 0x3e, |
| }, { |
| 0xac, 0xf1, 0x4a, 0x2f, 0x79, 0xc2, 0x96, 0x58, 0x60, 0x1d, 0xd3, 0xe4, 0x0e, 0xb7, 0x35, 0x8b, |
| 0x49, 0x3e, 0x2f, 0xc5, 0x92, 0x58, 0xfc, 0xa3, 0xb7, 0xe0, 0x14, 0x7a, 0x61, 0x0d, 0x8b, 0xd6, |
| }, { |
| 0xd4, 0x0b, 0xb2, 0x7e, 0x4f, 0x90, 0x18, 0xad, 0xe3, 0x3c, 0x59, 0xc7, 0x25, 0xfa, 0x86, 0x61, |
| 0x61, 0xb4, 0xdb, 0x8d, 0x1c, 0x43, 0xa7, 0x7e, 0x9a, 0x5f, 0x06, 0xf8, 0xe0, 0x25, 0x39, 0xc2, |
| }, { |
| 0x1d, 0xf2, 0xd8, 0x84, 0xa6, 0x3f, 0x7b, 0x41, 0xca, 0x59, 0x63, 0xbe, 0x05, 0xe0, 0x9c, 0x27, |
| 0x27, 0x1b, 0xe4, 0x71, 0x49, 0xac, 0x8e, 0xd2, 0xf0, 0xc6, 0x9a, 0x0d, 0x3f, 0x53, 0x65, 0xb8, |
| } |
| }; |
| #else |
| /** |
| * This table contains the results of applying both the S-box and P-shuffle. |
| * It can be regenerated by compiling this file with -DCONFIG_SMALL -DTEST -DGENTABLES |
| */ |
| static const uint32_t S_boxes_P_shuffle[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, |
| }, |
| }; |
| #endif |
| |
| static uint64_t shuffle(uint64_t in, const uint8_t *shuffle, int shuffle_len) { |
| int i; |
| uint64_t res = 0; |
| for (i = 0; i < shuffle_len; i++) |
| res += res + ((in >> *shuffle++) & 1); |
| return res; |
| } |
| |
| static uint64_t shuffle_inv(uint64_t in, const uint8_t *shuffle, int shuffle_len) { |
| int i; |
| uint64_t res = 0; |
| shuffle += shuffle_len - 1; |
| for (i = 0; i < shuffle_len; i++) { |
| res |= (in & 1) << *shuffle--; |
| in >>= 1; |
| } |
| return res; |
| } |
| |
| static uint32_t f_func(uint32_t r, uint64_t k) { |
| int i; |
| uint32_t out = 0; |
| // rotate to get first part of E-shuffle in the lowest 6 bits |
| r = (r << 1) | (r >> 31); |
| // apply S-boxes, those compress the data again from 8 * 6 to 8 * 4 bits |
| for (i = 7; i >= 0; i--) { |
| uint8_t tmp = (r ^ k) & 0x3f; |
| #if CONFIG_SMALL |
| uint8_t v = S_boxes[i][tmp >> 1]; |
| if (tmp & 1) v >>= 4; |
| out = (out >> 4) | (v << 28); |
| #else |
| out |= S_boxes_P_shuffle[i][tmp]; |
| #endif |
| // get next 6 bits of E-shuffle and round key k into the lowest bits |
| r = (r >> 4) | (r << 28); |
| k >>= 6; |
| } |
| #if CONFIG_SMALL |
| out = shuffle(out, P_shuffle, sizeof(P_shuffle)); |
| #endif |
| return out; |
| } |
| |
| /** |
| * @brief rotate the two halves of the expanded 56 bit key each 1 bit left |
| * |
| * Note: the specification calls this "shift", so I kept it although |
| * it is confusing. |
| */ |
| static uint64_t key_shift_left(uint64_t CDn) { |
| uint64_t carries = (CDn >> 27) & 0x10000001; |
| CDn <<= 1; |
| CDn &= ~0x10000001; |
| CDn |= carries; |
| return CDn; |
| } |
| |
| static void gen_roundkeys(uint64_t K[16], uint64_t key) { |
| int i; |
| // discard parity bits from key and shuffle it into C and D parts |
| uint64_t CDn = shuffle(key, PC1_shuffle, sizeof(PC1_shuffle)); |
| // generate round keys |
| for (i = 0; i < 16; i++) { |
| CDn = key_shift_left(CDn); |
| if (i > 1 && i != 8 && i != 15) |
| CDn = key_shift_left(CDn); |
| K[i] = shuffle(CDn, PC2_shuffle, sizeof(PC2_shuffle)); |
| } |
| } |
| |
| static uint64_t des_encdec(uint64_t in, uint64_t K[16], int decrypt) { |
| int i; |
| // used to apply round keys in reverse order for decryption |
| decrypt = decrypt ? 15 : 0; |
| // shuffle irrelevant to security but to ease hardware implementations |
| in = shuffle(in, IP_shuffle, sizeof(IP_shuffle)); |
| for (i = 0; i < 16; i++) { |
| uint32_t f_res; |
| f_res = f_func(in, K[decrypt ^ i]); |
| in = (in << 32) | (in >> 32); |
| in ^= f_res; |
| } |
| in = (in << 32) | (in >> 32); |
| // reverse shuffle used to ease hardware implementations |
| in = shuffle_inv(in, IP_shuffle, sizeof(IP_shuffle)); |
| return in; |
| } |
| |
| AVDES *av_des_alloc(void) |
| { |
| return av_mallocz(sizeof(struct AVDES)); |
| } |
| |
| int av_des_init(AVDES *d, const uint8_t *key, int key_bits, av_unused int decrypt) { |
| if (key_bits != 64 && key_bits != 192) |
| return AVERROR(EINVAL); |
| d->triple_des = key_bits > 64; |
| gen_roundkeys(d->round_keys[0], AV_RB64(key)); |
| if (d->triple_des) { |
| gen_roundkeys(d->round_keys[1], AV_RB64(key + 8)); |
| gen_roundkeys(d->round_keys[2], AV_RB64(key + 16)); |
| } |
| return 0; |
| } |
| |
| static void av_des_crypt_mac(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt, int mac) { |
| uint64_t iv_val = iv ? AV_RB64(iv) : 0; |
| while (count-- > 0) { |
| uint64_t dst_val; |
| uint64_t src_val = src ? AV_RB64(src) : 0; |
| if (decrypt) { |
| uint64_t tmp = src_val; |
| if (d->triple_des) { |
| src_val = des_encdec(src_val, d->round_keys[2], 1); |
| src_val = des_encdec(src_val, d->round_keys[1], 0); |
| } |
| dst_val = des_encdec(src_val, d->round_keys[0], 1) ^ iv_val; |
| iv_val = iv ? tmp : 0; |
| } else { |
| dst_val = des_encdec(src_val ^ iv_val, d->round_keys[0], 0); |
| if (d->triple_des) { |
| dst_val = des_encdec(dst_val, d->round_keys[1], 1); |
| dst_val = des_encdec(dst_val, d->round_keys[2], 0); |
| } |
| iv_val = iv ? dst_val : 0; |
| } |
| AV_WB64(dst, dst_val); |
| src += 8; |
| if (!mac) |
| dst += 8; |
| } |
| if (iv) |
| AV_WB64(iv, iv_val); |
| } |
| |
| void av_des_crypt(AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt) { |
| av_des_crypt_mac(d, dst, src, count, iv, decrypt, 0); |
| } |
| |
| void av_des_mac(AVDES *d, uint8_t *dst, const uint8_t *src, int count) { |
| av_des_crypt_mac(d, dst, src, count, (uint8_t[8]){0}, 0, 1); |
| } |
| |
| #ifdef TEST |
| #include <stdlib.h> |
| #include <stdio.h> |
| |
| #include "time.h" |
| |
| static uint64_t rand64(void) { |
| uint64_t r = rand(); |
| r = (r << 32) | rand(); |
| return r; |
| } |
| |
| static const uint8_t test_key[] = {0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0}; |
| static const DECLARE_ALIGNED(8, uint8_t, plain)[] = {0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10}; |
| static const DECLARE_ALIGNED(8, uint8_t, crypt)[] = {0x4a, 0xb6, 0x5b, 0x3d, 0x4b, 0x06, 0x15, 0x18}; |
| static DECLARE_ALIGNED(8, uint8_t, tmp)[8]; |
| static DECLARE_ALIGNED(8, uint8_t, large_buffer)[10002][8]; |
| static const uint8_t cbc_key[] = { |
| 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, |
| 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, |
| 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23 |
| }; |
| |
| static int run_test(int cbc, int decrypt) { |
| AVDES d; |
| int delay = cbc && !decrypt ? 2 : 1; |
| uint64_t res; |
| AV_WB64(large_buffer[0], 0x4e6f772069732074ULL); |
| AV_WB64(large_buffer[1], 0x1234567890abcdefULL); |
| AV_WB64(tmp, 0x1234567890abcdefULL); |
| av_des_init(&d, cbc_key, 192, decrypt); |
| av_des_crypt(&d, large_buffer[delay], large_buffer[0], 10000, cbc ? tmp : NULL, decrypt); |
| res = AV_RB64(large_buffer[9999 + delay]); |
| if (cbc) { |
| if (decrypt) |
| return res == 0xc5cecf63ecec514cULL; |
| else |
| return res == 0xcb191f85d1ed8439ULL; |
| } else { |
| if (decrypt) |
| return res == 0x8325397644091a0aULL; |
| else |
| return res == 0xdd17e8b8b437d232ULL; |
| } |
| } |
| |
| int main(void) { |
| AVDES d; |
| int i; |
| #ifdef GENTABLES |
| int j; |
| #endif |
| uint64_t key[3]; |
| uint64_t data; |
| uint64_t ct; |
| uint64_t roundkeys[16]; |
| srand(av_gettime()); |
| key[0] = AV_RB64(test_key); |
| data = AV_RB64(plain); |
| gen_roundkeys(roundkeys, key[0]); |
| if (des_encdec(data, roundkeys, 0) != AV_RB64(crypt)) { |
| printf("Test 1 failed\n"); |
| return 1; |
| } |
| av_des_init(&d, test_key, 64, 0); |
| av_des_crypt(&d, tmp, plain, 1, NULL, 0); |
| if (memcmp(tmp, crypt, sizeof(crypt))) { |
| printf("Public API decryption failed\n"); |
| return 1; |
| } |
| if (!run_test(0, 0) || !run_test(0, 1) || !run_test(1, 0) || !run_test(1, 1)) { |
| printf("Partial Monte-Carlo test failed\n"); |
| return 1; |
| } |
| for (i = 0; i < 1000; i++) { |
| key[0] = rand64(); key[1] = rand64(); key[2] = rand64(); |
| data = rand64(); |
| av_des_init(&d, (uint8_t*)key, 192, 0); |
| av_des_crypt(&d, (uint8_t*)&ct, (uint8_t*)&data, 1, NULL, 0); |
| av_des_init(&d, (uint8_t*)key, 192, 1); |
| av_des_crypt(&d, (uint8_t*)&ct, (uint8_t*)&ct, 1, NULL, 1); |
| if (ct != data) { |
| printf("Test 2 failed\n"); |
| return 1; |
| } |
| } |
| #ifdef GENTABLES |
| printf("static const uint32_t S_boxes_P_shuffle[8][64] = {\n"); |
| for (i = 0; i < 8; i++) { |
| printf(" {"); |
| for (j = 0; j < 64; j++) { |
| uint32_t v = S_boxes[i][j >> 1]; |
| v = j & 1 ? v >> 4 : v & 0xf; |
| v <<= 28 - 4 * i; |
| v = shuffle(v, P_shuffle, sizeof(P_shuffle)); |
| printf((j & 7) == 0 ? "\n " : " "); |
| printf("0x%08X,", v); |
| } |
| printf("\n },\n"); |
| } |
| printf("};\n"); |
| #endif |
| return 0; |
| } |
| #endif |
