^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Common Twofish algorithm parts shared between the c and assembler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * implementations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Originally Twofish for GPG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * By Matthew Skala <mskala@ansuz.sooke.bc.ca>, July 26, 1998
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * 256-bit key length added March 20, 1999
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Some modifications to reduce the text size by Werner Koch, April, 1998
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Ported to the kerneli patch by Marc Mutz <Marc@Mutz.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Ported to CryptoAPI by Colin Slater <hoho@tacomeat.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * The original author has disclaimed all copyright interest in this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * code and thus put it in the public domain. The subsequent authors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * have put this under the GNU General Public License.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * This code is a "clean room" implementation, written from the paper
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * through http://www.counterpane.com/twofish.html
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * For background information on multiplication in finite fields, used for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * the matrix operations in the key schedule, see the book _Contemporary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * Third Edition.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <crypto/twofish.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/crypto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* The large precomputed tables for the Twofish cipher (twofish.c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * Taken from the same source as twofish.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * Marc Mutz <Marc@Mutz.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) /* These two tables are the q0 and q1 permutations, exactly as described in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * the Twofish paper. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static const u8 q0[256] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 0xA9, 0x67, 0xB3, 0xE8, 0x04, 0xFD, 0xA3, 0x76, 0x9A, 0x92, 0x80, 0x78,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 0xE4, 0xDD, 0xD1, 0x38, 0x0D, 0xC6, 0x35, 0x98, 0x18, 0xF7, 0xEC, 0x6C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 0x43, 0x75, 0x37, 0x26, 0xFA, 0x13, 0x94, 0x48, 0xF2, 0xD0, 0x8B, 0x30,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 0x84, 0x54, 0xDF, 0x23, 0x19, 0x5B, 0x3D, 0x59, 0xF3, 0xAE, 0xA2, 0x82,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 0x63, 0x01, 0x83, 0x2E, 0xD9, 0x51, 0x9B, 0x7C, 0xA6, 0xEB, 0xA5, 0xBE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 0x16, 0x0C, 0xE3, 0x61, 0xC0, 0x8C, 0x3A, 0xF5, 0x73, 0x2C, 0x25, 0x0B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 0xBB, 0x4E, 0x89, 0x6B, 0x53, 0x6A, 0xB4, 0xF1, 0xE1, 0xE6, 0xBD, 0x45,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 0xE2, 0xF4, 0xB6, 0x66, 0xCC, 0x95, 0x03, 0x56, 0xD4, 0x1C, 0x1E, 0xD7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 0xFB, 0xC3, 0x8E, 0xB5, 0xE9, 0xCF, 0xBF, 0xBA, 0xEA, 0x77, 0x39, 0xAF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 0x33, 0xC9, 0x62, 0x71, 0x81, 0x79, 0x09, 0xAD, 0x24, 0xCD, 0xF9, 0xD8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 0xE5, 0xC5, 0xB9, 0x4D, 0x44, 0x08, 0x86, 0xE7, 0xA1, 0x1D, 0xAA, 0xED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 0x06, 0x70, 0xB2, 0xD2, 0x41, 0x7B, 0xA0, 0x11, 0x31, 0xC2, 0x27, 0x90,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 0x20, 0xF6, 0x60, 0xFF, 0x96, 0x5C, 0xB1, 0xAB, 0x9E, 0x9C, 0x52, 0x1B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 0x5F, 0x93, 0x0A, 0xEF, 0x91, 0x85, 0x49, 0xEE, 0x2D, 0x4F, 0x8F, 0x3B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 0x47, 0x87, 0x6D, 0x46, 0xD6, 0x3E, 0x69, 0x64, 0x2A, 0xCE, 0xCB, 0x2F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 0xFC, 0x97, 0x05, 0x7A, 0xAC, 0x7F, 0xD5, 0x1A, 0x4B, 0x0E, 0xA7, 0x5A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 0x28, 0x14, 0x3F, 0x29, 0x88, 0x3C, 0x4C, 0x02, 0xB8, 0xDA, 0xB0, 0x17,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 0x55, 0x1F, 0x8A, 0x7D, 0x57, 0xC7, 0x8D, 0x74, 0xB7, 0xC4, 0x9F, 0x72,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 0x7E, 0x15, 0x22, 0x12, 0x58, 0x07, 0x99, 0x34, 0x6E, 0x50, 0xDE, 0x68,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 0x65, 0xBC, 0xDB, 0xF8, 0xC8, 0xA8, 0x2B, 0x40, 0xDC, 0xFE, 0x32, 0xA4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 0xCA, 0x10, 0x21, 0xF0, 0xD3, 0x5D, 0x0F, 0x00, 0x6F, 0x9D, 0x36, 0x42,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 0x4A, 0x5E, 0xC1, 0xE0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static const u8 q1[256] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 0x75, 0xF3, 0xC6, 0xF4, 0xDB, 0x7B, 0xFB, 0xC8, 0x4A, 0xD3, 0xE6, 0x6B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 0x45, 0x7D, 0xE8, 0x4B, 0xD6, 0x32, 0xD8, 0xFD, 0x37, 0x71, 0xF1, 0xE1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 0x30, 0x0F, 0xF8, 0x1B, 0x87, 0xFA, 0x06, 0x3F, 0x5E, 0xBA, 0xAE, 0x5B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 0x8A, 0x00, 0xBC, 0x9D, 0x6D, 0xC1, 0xB1, 0x0E, 0x80, 0x5D, 0xD2, 0xD5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 0xA0, 0x84, 0x07, 0x14, 0xB5, 0x90, 0x2C, 0xA3, 0xB2, 0x73, 0x4C, 0x54,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 0x92, 0x74, 0x36, 0x51, 0x38, 0xB0, 0xBD, 0x5A, 0xFC, 0x60, 0x62, 0x96,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 0x6C, 0x42, 0xF7, 0x10, 0x7C, 0x28, 0x27, 0x8C, 0x13, 0x95, 0x9C, 0xC7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 0x24, 0x46, 0x3B, 0x70, 0xCA, 0xE3, 0x85, 0xCB, 0x11, 0xD0, 0x93, 0xB8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 0xA6, 0x83, 0x20, 0xFF, 0x9F, 0x77, 0xC3, 0xCC, 0x03, 0x6F, 0x08, 0xBF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 0x40, 0xE7, 0x2B, 0xE2, 0x79, 0x0C, 0xAA, 0x82, 0x41, 0x3A, 0xEA, 0xB9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 0xE4, 0x9A, 0xA4, 0x97, 0x7E, 0xDA, 0x7A, 0x17, 0x66, 0x94, 0xA1, 0x1D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 0x3D, 0xF0, 0xDE, 0xB3, 0x0B, 0x72, 0xA7, 0x1C, 0xEF, 0xD1, 0x53, 0x3E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 0x8F, 0x33, 0x26, 0x5F, 0xEC, 0x76, 0x2A, 0x49, 0x81, 0x88, 0xEE, 0x21,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 0xC4, 0x1A, 0xEB, 0xD9, 0xC5, 0x39, 0x99, 0xCD, 0xAD, 0x31, 0x8B, 0x01,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 0x18, 0x23, 0xDD, 0x1F, 0x4E, 0x2D, 0xF9, 0x48, 0x4F, 0xF2, 0x65, 0x8E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 0x78, 0x5C, 0x58, 0x19, 0x8D, 0xE5, 0x98, 0x57, 0x67, 0x7F, 0x05, 0x64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 0xAF, 0x63, 0xB6, 0xFE, 0xF5, 0xB7, 0x3C, 0xA5, 0xCE, 0xE9, 0x68, 0x44,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 0xE0, 0x4D, 0x43, 0x69, 0x29, 0x2E, 0xAC, 0x15, 0x59, 0xA8, 0x0A, 0x9E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 0x6E, 0x47, 0xDF, 0x34, 0x35, 0x6A, 0xCF, 0xDC, 0x22, 0xC9, 0xC0, 0x9B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) 0x89, 0xD4, 0xED, 0xAB, 0x12, 0xA2, 0x0D, 0x52, 0xBB, 0x02, 0x2F, 0xA9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 0xD7, 0x61, 0x1E, 0xB4, 0x50, 0x04, 0xF6, 0xC2, 0x16, 0x25, 0x86, 0x56,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) 0x55, 0x09, 0xBE, 0x91
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) /* These MDS tables are actually tables of MDS composed with q0 and q1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * because it is only ever used that way and we can save some time by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * precomputing. Of course the main saving comes from precomputing the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * GF(2^8) multiplication involved in the MDS matrix multiply; by looking
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * things up in these tables we reduce the matrix multiply to four lookups
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * and three XORs. Semi-formally, the definition of these tables is:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * mds[0][i] = MDS (q1[i] 0 0 0)^T mds[1][i] = MDS (0 q0[i] 0 0)^T
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * mds[2][i] = MDS (0 0 q1[i] 0)^T mds[3][i] = MDS (0 0 0 q0[i])^T
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * where ^T means "transpose", the matrix multiply is performed in GF(2^8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * represented as GF(2)[x]/v(x) where v(x)=x^8+x^6+x^5+x^3+1 as described
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) * by Schneier et al, and I'm casually glossing over the byte/word
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * conversion issues. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static const u32 mds[4][256] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 0xBCBC3275, 0xECEC21F3, 0x202043C6, 0xB3B3C9F4, 0xDADA03DB, 0x02028B7B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 0xE2E22BFB, 0x9E9EFAC8, 0xC9C9EC4A, 0xD4D409D3, 0x18186BE6, 0x1E1E9F6B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 0x98980E45, 0xB2B2387D, 0xA6A6D2E8, 0x2626B74B, 0x3C3C57D6, 0x93938A32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 0x8282EED8, 0x525298FD, 0x7B7BD437, 0xBBBB3771, 0x5B5B97F1, 0x474783E1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 0x24243C30, 0x5151E20F, 0xBABAC6F8, 0x4A4AF31B, 0xBFBF4887, 0x0D0D70FA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 0xB0B0B306, 0x7575DE3F, 0xD2D2FD5E, 0x7D7D20BA, 0x666631AE, 0x3A3AA35B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 0x59591C8A, 0x00000000, 0xCDCD93BC, 0x1A1AE09D, 0xAEAE2C6D, 0x7F7FABC1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 0x2B2BC7B1, 0xBEBEB90E, 0xE0E0A080, 0x8A8A105D, 0x3B3B52D2, 0x6464BAD5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 0xD8D888A0, 0xE7E7A584, 0x5F5FE807, 0x1B1B1114, 0x2C2CC2B5, 0xFCFCB490,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 0x3131272C, 0x808065A3, 0x73732AB2, 0x0C0C8173, 0x79795F4C, 0x6B6B4154,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 0x4B4B0292, 0x53536974, 0x94948F36, 0x83831F51, 0x2A2A3638, 0xC4C49CB0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 0x2222C8BD, 0xD5D5F85A, 0xBDBDC3FC, 0x48487860, 0xFFFFCE62, 0x4C4C0796,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 0x4141776C, 0xC7C7E642, 0xEBEB24F7, 0x1C1C1410, 0x5D5D637C, 0x36362228,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 0x6767C027, 0xE9E9AF8C, 0x4444F913, 0x1414EA95, 0xF5F5BB9C, 0xCFCF18C7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 0x3F3F2D24, 0xC0C0E346, 0x7272DB3B, 0x54546C70, 0x29294CCA, 0xF0F035E3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 0x0808FE85, 0xC6C617CB, 0xF3F34F11, 0x8C8CE4D0, 0xA4A45993, 0xCACA96B8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 0x68683BA6, 0xB8B84D83, 0x38382820, 0xE5E52EFF, 0xADAD569F, 0x0B0B8477,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 0xC8C81DC3, 0x9999FFCC, 0x5858ED03, 0x19199A6F, 0x0E0E0A08, 0x95957EBF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 0x70705040, 0xF7F730E7, 0x6E6ECF2B, 0x1F1F6EE2, 0xB5B53D79, 0x09090F0C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 0x616134AA, 0x57571682, 0x9F9F0B41, 0x9D9D803A, 0x111164EA, 0x2525CDB9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 0xAFAFDDE4, 0x4545089A, 0xDFDF8DA4, 0xA3A35C97, 0xEAEAD57E, 0x353558DA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 0xEDEDD07A, 0x4343FC17, 0xF8F8CB66, 0xFBFBB194, 0x3737D3A1, 0xFAFA401D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 0xC2C2683D, 0xB4B4CCF0, 0x32325DDE, 0x9C9C71B3, 0x5656E70B, 0xE3E3DA72,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 0x878760A7, 0x15151B1C, 0xF9F93AEF, 0x6363BFD1, 0x3434A953, 0x9A9A853E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 0xB1B1428F, 0x7C7CD133, 0x88889B26, 0x3D3DA65F, 0xA1A1D7EC, 0xE4E4DF76,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 0x8181942A, 0x91910149, 0x0F0FFB81, 0xEEEEAA88, 0x161661EE, 0xD7D77321,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 0x9797F5C4, 0xA5A5A81A, 0xFEFE3FEB, 0x6D6DB5D9, 0x7878AEC5, 0xC5C56D39,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 0x1D1DE599, 0x7676A4CD, 0x3E3EDCAD, 0xCBCB6731, 0xB6B6478B, 0xEFEF5B01,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 0x12121E18, 0x6060C523, 0x6A6AB0DD, 0x4D4DF61F, 0xCECEE94E, 0xDEDE7C2D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 0x55559DF9, 0x7E7E5A48, 0x2121B24F, 0x03037AF2, 0xA0A02665, 0x5E5E198E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 0x5A5A6678, 0x65654B5C, 0x62624E58, 0xFDFD4519, 0x0606F48D, 0x404086E5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 0xF2F2BE98, 0x3333AC57, 0x17179067, 0x05058E7F, 0xE8E85E05, 0x4F4F7D64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 0x89896AAF, 0x10109563, 0x74742FB6, 0x0A0A75FE, 0x5C5C92F5, 0x9B9B74B7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 0x2D2D333C, 0x3030D6A5, 0x2E2E49CE, 0x494989E9, 0x46467268, 0x77775544,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 0xA8A8D8E0, 0x9696044D, 0x2828BD43, 0xA9A92969, 0xD9D97929, 0x8686912E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 0xD1D187AC, 0xF4F44A15, 0x8D8D1559, 0xD6D682A8, 0xB9B9BC0A, 0x42420D9E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 0xF6F6C16E, 0x2F2FB847, 0xDDDD06DF, 0x23233934, 0xCCCC6235, 0xF1F1C46A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 0xC1C112CF, 0x8585EBDC, 0x8F8F9E22, 0x7171A1C9, 0x9090F0C0, 0xAAAA539B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 0x0101F189, 0x8B8BE1D4, 0x4E4E8CED, 0x8E8E6FAB, 0xABABA212, 0x6F6F3EA2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 0xE6E6540D, 0xDBDBF252, 0x92927BBB, 0xB7B7B602, 0x6969CA2F, 0x3939D9A9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 0xD3D30CD7, 0xA7A72361, 0xA2A2AD1E, 0xC3C399B4, 0x6C6C4450, 0x07070504,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 0x04047FF6, 0x272746C2, 0xACACA716, 0xD0D07625, 0x50501386, 0xDCDCF756,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 0x84841A55, 0xE1E15109, 0x7A7A25BE, 0x1313EF91},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 0xA9D93939, 0x67901717, 0xB3719C9C, 0xE8D2A6A6, 0x04050707, 0xFD985252,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 0xA3658080, 0x76DFE4E4, 0x9A084545, 0x92024B4B, 0x80A0E0E0, 0x78665A5A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 0xE4DDAFAF, 0xDDB06A6A, 0xD1BF6363, 0x38362A2A, 0x0D54E6E6, 0xC6432020,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 0x3562CCCC, 0x98BEF2F2, 0x181E1212, 0xF724EBEB, 0xECD7A1A1, 0x6C774141,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 0x43BD2828, 0x7532BCBC, 0x37D47B7B, 0x269B8888, 0xFA700D0D, 0x13F94444,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 0x94B1FBFB, 0x485A7E7E, 0xF27A0303, 0xD0E48C8C, 0x8B47B6B6, 0x303C2424,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 0x84A5E7E7, 0x54416B6B, 0xDF06DDDD, 0x23C56060, 0x1945FDFD, 0x5BA33A3A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 0x3D68C2C2, 0x59158D8D, 0xF321ECEC, 0xAE316666, 0xA23E6F6F, 0x82165757,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 0x63951010, 0x015BEFEF, 0x834DB8B8, 0x2E918686, 0xD9B56D6D, 0x511F8383,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 0x9B53AAAA, 0x7C635D5D, 0xA63B6868, 0xEB3FFEFE, 0xA5D63030, 0xBE257A7A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 0x16A7ACAC, 0x0C0F0909, 0xE335F0F0, 0x6123A7A7, 0xC0F09090, 0x8CAFE9E9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 0x3A809D9D, 0xF5925C5C, 0x73810C0C, 0x2C273131, 0x2576D0D0, 0x0BE75656,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 0xBB7B9292, 0x4EE9CECE, 0x89F10101, 0x6B9F1E1E, 0x53A93434, 0x6AC4F1F1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 0xB499C3C3, 0xF1975B5B, 0xE1834747, 0xE66B1818, 0xBDC82222, 0x450E9898,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 0xE26E1F1F, 0xF4C9B3B3, 0xB62F7474, 0x66CBF8F8, 0xCCFF9999, 0x95EA1414,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 0x03ED5858, 0x56F7DCDC, 0xD4E18B8B, 0x1C1B1515, 0x1EADA2A2, 0xD70CD3D3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 0xFB2BE2E2, 0xC31DC8C8, 0x8E195E5E, 0xB5C22C2C, 0xE9894949, 0xCF12C1C1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 0xBF7E9595, 0xBA207D7D, 0xEA641111, 0x77840B0B, 0x396DC5C5, 0xAF6A8989,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 0x33D17C7C, 0xC9A17171, 0x62CEFFFF, 0x7137BBBB, 0x81FB0F0F, 0x793DB5B5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 0x0951E1E1, 0xADDC3E3E, 0x242D3F3F, 0xCDA47676, 0xF99D5555, 0xD8EE8282,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 0xE5864040, 0xC5AE7878, 0xB9CD2525, 0x4D049696, 0x44557777, 0x080A0E0E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 0x86135050, 0xE730F7F7, 0xA1D33737, 0x1D40FAFA, 0xAA346161, 0xED8C4E4E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 0x06B3B0B0, 0x706C5454, 0xB22A7373, 0xD2523B3B, 0x410B9F9F, 0x7B8B0202,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 0xA088D8D8, 0x114FF3F3, 0x3167CBCB, 0xC2462727, 0x27C06767, 0x90B4FCFC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 0x20283838, 0xF67F0404, 0x60784848, 0xFF2EE5E5, 0x96074C4C, 0x5C4B6565,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 0xB1C72B2B, 0xAB6F8E8E, 0x9E0D4242, 0x9CBBF5F5, 0x52F2DBDB, 0x1BF34A4A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 0x5FA63D3D, 0x9359A4A4, 0x0ABCB9B9, 0xEF3AF9F9, 0x91EF1313, 0x85FE0808,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 0x49019191, 0xEE611616, 0x2D7CDEDE, 0x4FB22121, 0x8F42B1B1, 0x3BDB7272,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 0x47B82F2F, 0x8748BFBF, 0x6D2CAEAE, 0x46E3C0C0, 0xD6573C3C, 0x3E859A9A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 0x6929A9A9, 0x647D4F4F, 0x2A948181, 0xCE492E2E, 0xCB17C6C6, 0x2FCA6969,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 0xFCC3BDBD, 0x975CA3A3, 0x055EE8E8, 0x7AD0EDED, 0xAC87D1D1, 0x7F8E0505,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 0xD5BA6464, 0x1AA8A5A5, 0x4BB72626, 0x0EB9BEBE, 0xA7608787, 0x5AF8D5D5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 0x28223636, 0x14111B1B, 0x3FDE7575, 0x2979D9D9, 0x88AAEEEE, 0x3C332D2D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 0x4C5F7979, 0x02B6B7B7, 0xB896CACA, 0xDA583535, 0xB09CC4C4, 0x17FC4343,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 0x551A8484, 0x1FF64D4D, 0x8A1C5959, 0x7D38B2B2, 0x57AC3333, 0xC718CFCF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 0x8DF40606, 0x74695353, 0xB7749B9B, 0xC4F59797, 0x9F56ADAD, 0x72DAE3E3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 0x7ED5EAEA, 0x154AF4F4, 0x229E8F8F, 0x12A2ABAB, 0x584E6262, 0x07E85F5F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 0x99E51D1D, 0x34392323, 0x6EC1F6F6, 0x50446C6C, 0xDE5D3232, 0x68724646,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 0x6526A0A0, 0xBC93CDCD, 0xDB03DADA, 0xF8C6BABA, 0xC8FA9E9E, 0xA882D6D6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 0x2BCF6E6E, 0x40507070, 0xDCEB8585, 0xFE750A0A, 0x328A9393, 0xA48DDFDF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 0xCA4C2929, 0x10141C1C, 0x2173D7D7, 0xF0CCB4B4, 0xD309D4D4, 0x5D108A8A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 0x0FE25151, 0x00000000, 0x6F9A1919, 0x9DE01A1A, 0x368F9494, 0x42E6C7C7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 0x4AECC9C9, 0x5EFDD2D2, 0xC1AB7F7F, 0xE0D8A8A8},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 0xBC75BC32, 0xECF3EC21, 0x20C62043, 0xB3F4B3C9, 0xDADBDA03, 0x027B028B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 0xE2FBE22B, 0x9EC89EFA, 0xC94AC9EC, 0xD4D3D409, 0x18E6186B, 0x1E6B1E9F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 0x9845980E, 0xB27DB238, 0xA6E8A6D2, 0x264B26B7, 0x3CD63C57, 0x9332938A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 0x82D882EE, 0x52FD5298, 0x7B377BD4, 0xBB71BB37, 0x5BF15B97, 0x47E14783,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 0x2430243C, 0x510F51E2, 0xBAF8BAC6, 0x4A1B4AF3, 0xBF87BF48, 0x0DFA0D70,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 0xB006B0B3, 0x753F75DE, 0xD25ED2FD, 0x7DBA7D20, 0x66AE6631, 0x3A5B3AA3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 0x598A591C, 0x00000000, 0xCDBCCD93, 0x1A9D1AE0, 0xAE6DAE2C, 0x7FC17FAB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 0x2BB12BC7, 0xBE0EBEB9, 0xE080E0A0, 0x8A5D8A10, 0x3BD23B52, 0x64D564BA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 0xD8A0D888, 0xE784E7A5, 0x5F075FE8, 0x1B141B11, 0x2CB52CC2, 0xFC90FCB4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 0x312C3127, 0x80A38065, 0x73B2732A, 0x0C730C81, 0x794C795F, 0x6B546B41,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 0x4B924B02, 0x53745369, 0x9436948F, 0x8351831F, 0x2A382A36, 0xC4B0C49C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 0x22BD22C8, 0xD55AD5F8, 0xBDFCBDC3, 0x48604878, 0xFF62FFCE, 0x4C964C07,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 0x416C4177, 0xC742C7E6, 0xEBF7EB24, 0x1C101C14, 0x5D7C5D63, 0x36283622,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 0x672767C0, 0xE98CE9AF, 0x441344F9, 0x149514EA, 0xF59CF5BB, 0xCFC7CF18,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 0x3F243F2D, 0xC046C0E3, 0x723B72DB, 0x5470546C, 0x29CA294C, 0xF0E3F035,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 0x088508FE, 0xC6CBC617, 0xF311F34F, 0x8CD08CE4, 0xA493A459, 0xCAB8CA96,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 0x68A6683B, 0xB883B84D, 0x38203828, 0xE5FFE52E, 0xAD9FAD56, 0x0B770B84,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 0xC8C3C81D, 0x99CC99FF, 0x580358ED, 0x196F199A, 0x0E080E0A, 0x95BF957E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 0x70407050, 0xF7E7F730, 0x6E2B6ECF, 0x1FE21F6E, 0xB579B53D, 0x090C090F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 0x61AA6134, 0x57825716, 0x9F419F0B, 0x9D3A9D80, 0x11EA1164, 0x25B925CD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 0xAFE4AFDD, 0x459A4508, 0xDFA4DF8D, 0xA397A35C, 0xEA7EEAD5, 0x35DA3558,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 0xED7AEDD0, 0x431743FC, 0xF866F8CB, 0xFB94FBB1, 0x37A137D3, 0xFA1DFA40,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 0xC23DC268, 0xB4F0B4CC, 0x32DE325D, 0x9CB39C71, 0x560B56E7, 0xE372E3DA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 0x87A78760, 0x151C151B, 0xF9EFF93A, 0x63D163BF, 0x345334A9, 0x9A3E9A85,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 0xB18FB142, 0x7C337CD1, 0x8826889B, 0x3D5F3DA6, 0xA1ECA1D7, 0xE476E4DF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 0x812A8194, 0x91499101, 0x0F810FFB, 0xEE88EEAA, 0x16EE1661, 0xD721D773,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 0x97C497F5, 0xA51AA5A8, 0xFEEBFE3F, 0x6DD96DB5, 0x78C578AE, 0xC539C56D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 0x1D991DE5, 0x76CD76A4, 0x3EAD3EDC, 0xCB31CB67, 0xB68BB647, 0xEF01EF5B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 0x1218121E, 0x602360C5, 0x6ADD6AB0, 0x4D1F4DF6, 0xCE4ECEE9, 0xDE2DDE7C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 0x55F9559D, 0x7E487E5A, 0x214F21B2, 0x03F2037A, 0xA065A026, 0x5E8E5E19,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 0x5A785A66, 0x655C654B, 0x6258624E, 0xFD19FD45, 0x068D06F4, 0x40E54086,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 0xF298F2BE, 0x335733AC, 0x17671790, 0x057F058E, 0xE805E85E, 0x4F644F7D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 0x89AF896A, 0x10631095, 0x74B6742F, 0x0AFE0A75, 0x5CF55C92, 0x9BB79B74,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 0x2D3C2D33, 0x30A530D6, 0x2ECE2E49, 0x49E94989, 0x46684672, 0x77447755,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 0xA8E0A8D8, 0x964D9604, 0x284328BD, 0xA969A929, 0xD929D979, 0x862E8691,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 0xD1ACD187, 0xF415F44A, 0x8D598D15, 0xD6A8D682, 0xB90AB9BC, 0x429E420D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 0xF66EF6C1, 0x2F472FB8, 0xDDDFDD06, 0x23342339, 0xCC35CC62, 0xF16AF1C4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 0xC1CFC112, 0x85DC85EB, 0x8F228F9E, 0x71C971A1, 0x90C090F0, 0xAA9BAA53,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 0x018901F1, 0x8BD48BE1, 0x4EED4E8C, 0x8EAB8E6F, 0xAB12ABA2, 0x6FA26F3E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 0xE60DE654, 0xDB52DBF2, 0x92BB927B, 0xB702B7B6, 0x692F69CA, 0x39A939D9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 0xD3D7D30C, 0xA761A723, 0xA21EA2AD, 0xC3B4C399, 0x6C506C44, 0x07040705,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 0x04F6047F, 0x27C22746, 0xAC16ACA7, 0xD025D076, 0x50865013, 0xDC56DCF7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 0x8455841A, 0xE109E151, 0x7ABE7A25, 0x139113EF},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 0xD939A9D9, 0x90176790, 0x719CB371, 0xD2A6E8D2, 0x05070405, 0x9852FD98,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 0x6580A365, 0xDFE476DF, 0x08459A08, 0x024B9202, 0xA0E080A0, 0x665A7866,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 0xDDAFE4DD, 0xB06ADDB0, 0xBF63D1BF, 0x362A3836, 0x54E60D54, 0x4320C643,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 0x62CC3562, 0xBEF298BE, 0x1E12181E, 0x24EBF724, 0xD7A1ECD7, 0x77416C77,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 0xBD2843BD, 0x32BC7532, 0xD47B37D4, 0x9B88269B, 0x700DFA70, 0xF94413F9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 0xB1FB94B1, 0x5A7E485A, 0x7A03F27A, 0xE48CD0E4, 0x47B68B47, 0x3C24303C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 0xA5E784A5, 0x416B5441, 0x06DDDF06, 0xC56023C5, 0x45FD1945, 0xA33A5BA3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 0x68C23D68, 0x158D5915, 0x21ECF321, 0x3166AE31, 0x3E6FA23E, 0x16578216,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 0x95106395, 0x5BEF015B, 0x4DB8834D, 0x91862E91, 0xB56DD9B5, 0x1F83511F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 0x53AA9B53, 0x635D7C63, 0x3B68A63B, 0x3FFEEB3F, 0xD630A5D6, 0x257ABE25,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 0xA7AC16A7, 0x0F090C0F, 0x35F0E335, 0x23A76123, 0xF090C0F0, 0xAFE98CAF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 0x809D3A80, 0x925CF592, 0x810C7381, 0x27312C27, 0x76D02576, 0xE7560BE7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 0x7B92BB7B, 0xE9CE4EE9, 0xF10189F1, 0x9F1E6B9F, 0xA93453A9, 0xC4F16AC4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 0x99C3B499, 0x975BF197, 0x8347E183, 0x6B18E66B, 0xC822BDC8, 0x0E98450E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 0x6E1FE26E, 0xC9B3F4C9, 0x2F74B62F, 0xCBF866CB, 0xFF99CCFF, 0xEA1495EA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 0xED5803ED, 0xF7DC56F7, 0xE18BD4E1, 0x1B151C1B, 0xADA21EAD, 0x0CD3D70C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 0x2BE2FB2B, 0x1DC8C31D, 0x195E8E19, 0xC22CB5C2, 0x8949E989, 0x12C1CF12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 0x7E95BF7E, 0x207DBA20, 0x6411EA64, 0x840B7784, 0x6DC5396D, 0x6A89AF6A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 0xD17C33D1, 0xA171C9A1, 0xCEFF62CE, 0x37BB7137, 0xFB0F81FB, 0x3DB5793D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 0x51E10951, 0xDC3EADDC, 0x2D3F242D, 0xA476CDA4, 0x9D55F99D, 0xEE82D8EE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 0x8640E586, 0xAE78C5AE, 0xCD25B9CD, 0x04964D04, 0x55774455, 0x0A0E080A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 0x13508613, 0x30F7E730, 0xD337A1D3, 0x40FA1D40, 0x3461AA34, 0x8C4EED8C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 0xB3B006B3, 0x6C54706C, 0x2A73B22A, 0x523BD252, 0x0B9F410B, 0x8B027B8B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 0x88D8A088, 0x4FF3114F, 0x67CB3167, 0x4627C246, 0xC06727C0, 0xB4FC90B4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 0x28382028, 0x7F04F67F, 0x78486078, 0x2EE5FF2E, 0x074C9607, 0x4B655C4B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 0xC72BB1C7, 0x6F8EAB6F, 0x0D429E0D, 0xBBF59CBB, 0xF2DB52F2, 0xF34A1BF3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 0xA63D5FA6, 0x59A49359, 0xBCB90ABC, 0x3AF9EF3A, 0xEF1391EF, 0xFE0885FE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 0x01914901, 0x6116EE61, 0x7CDE2D7C, 0xB2214FB2, 0x42B18F42, 0xDB723BDB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 0xB82F47B8, 0x48BF8748, 0x2CAE6D2C, 0xE3C046E3, 0x573CD657, 0x859A3E85,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 0x29A96929, 0x7D4F647D, 0x94812A94, 0x492ECE49, 0x17C6CB17, 0xCA692FCA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 0xC3BDFCC3, 0x5CA3975C, 0x5EE8055E, 0xD0ED7AD0, 0x87D1AC87, 0x8E057F8E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 0xBA64D5BA, 0xA8A51AA8, 0xB7264BB7, 0xB9BE0EB9, 0x6087A760, 0xF8D55AF8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 0x22362822, 0x111B1411, 0xDE753FDE, 0x79D92979, 0xAAEE88AA, 0x332D3C33,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 0x5F794C5F, 0xB6B702B6, 0x96CAB896, 0x5835DA58, 0x9CC4B09C, 0xFC4317FC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 0x1A84551A, 0xF64D1FF6, 0x1C598A1C, 0x38B27D38, 0xAC3357AC, 0x18CFC718,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 0xF4068DF4, 0x69537469, 0x749BB774, 0xF597C4F5, 0x56AD9F56, 0xDAE372DA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 0xD5EA7ED5, 0x4AF4154A, 0x9E8F229E, 0xA2AB12A2, 0x4E62584E, 0xE85F07E8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 0xE51D99E5, 0x39233439, 0xC1F66EC1, 0x446C5044, 0x5D32DE5D, 0x72466872,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 0x26A06526, 0x93CDBC93, 0x03DADB03, 0xC6BAF8C6, 0xFA9EC8FA, 0x82D6A882,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 0xCF6E2BCF, 0x50704050, 0xEB85DCEB, 0x750AFE75, 0x8A93328A, 0x8DDFA48D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 0x4C29CA4C, 0x141C1014, 0x73D72173, 0xCCB4F0CC, 0x09D4D309, 0x108A5D10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 0xE2510FE2, 0x00000000, 0x9A196F9A, 0xE01A9DE0, 0x8F94368F, 0xE6C742E6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 0xECC94AEC, 0xFDD25EFD, 0xAB7FC1AB, 0xD8A8E0D8}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) /* The exp_to_poly and poly_to_exp tables are used to perform efficient
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) * operations in GF(2^8) represented as GF(2)[x]/w(x) where
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) * w(x)=x^8+x^6+x^3+x^2+1. We care about doing that because it's part of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * definition of the RS matrix in the key schedule. Elements of that field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * are polynomials of degree not greater than 7 and all coefficients 0 or 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) * which can be represented naturally by bytes (just substitute x=2). In that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) * form, GF(2^8) addition is the same as bitwise XOR, but GF(2^8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * multiplication is inefficient without hardware support. To multiply
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * faster, I make use of the fact x is a generator for the nonzero elements,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * so that every element p of GF(2)[x]/w(x) is either 0 or equal to (x)^n for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * some n in 0..254. Note that that caret is exponentiation in GF(2^8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * *not* polynomial notation. So if I want to compute pq where p and q are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * in GF(2^8), I can just say:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * 1. if p=0 or q=0 then pq=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * 2. otherwise, find m and n such that p=x^m and q=x^n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * 3. pq=(x^m)(x^n)=x^(m+n), so add m and n and find pq
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * The translations in steps 2 and 3 are looked up in the tables
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) * poly_to_exp (for step 2) and exp_to_poly (for step 3). To see this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * in action, look at the CALC_S macro. As additional wrinkles, note that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * one of my operands is always a constant, so the poly_to_exp lookup on it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) * is done in advance; I included the original values in the comments so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * readers can have some chance of recognizing that this *is* the RS matrix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) * from the Twofish paper. I've only included the table entries I actually
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) * need; I never do a lookup on a variable input of zero and the biggest
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * exponents I'll ever see are 254 (variable) and 237 (constant), so they'll
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) * never sum to more than 491. I'm repeating part of the exp_to_poly table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) * so that I don't have to do mod-255 reduction in the exponent arithmetic.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) * Since I know my constant operands are never zero, I only have to worry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) * about zero values in the variable operand, and I do it with a simple
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) * conditional branch. I know conditionals are expensive, but I couldn't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) * see a non-horrible way of avoiding them, and I did manage to group the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) * statements so that each if covers four group multiplications. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) static const u8 poly_to_exp[255] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 0x00, 0x01, 0x17, 0x02, 0x2E, 0x18, 0x53, 0x03, 0x6A, 0x2F, 0x93, 0x19,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 0x34, 0x54, 0x45, 0x04, 0x5C, 0x6B, 0xB6, 0x30, 0xA6, 0x94, 0x4B, 0x1A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 0x8C, 0x35, 0x81, 0x55, 0xAA, 0x46, 0x0D, 0x05, 0x24, 0x5D, 0x87, 0x6C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 0x9B, 0xB7, 0xC1, 0x31, 0x2B, 0xA7, 0xA3, 0x95, 0x98, 0x4C, 0xCA, 0x1B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 0xE6, 0x8D, 0x73, 0x36, 0xCD, 0x82, 0x12, 0x56, 0x62, 0xAB, 0xF0, 0x47,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 0x4F, 0x0E, 0xBD, 0x06, 0xD4, 0x25, 0xD2, 0x5E, 0x27, 0x88, 0x66, 0x6D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 0xD6, 0x9C, 0x79, 0xB8, 0x08, 0xC2, 0xDF, 0x32, 0x68, 0x2C, 0xFD, 0xA8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 0x8A, 0xA4, 0x5A, 0x96, 0x29, 0x99, 0x22, 0x4D, 0x60, 0xCB, 0xE4, 0x1C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 0x7B, 0xE7, 0x3B, 0x8E, 0x9E, 0x74, 0xF4, 0x37, 0xD8, 0xCE, 0xF9, 0x83,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 0x6F, 0x13, 0xB2, 0x57, 0xE1, 0x63, 0xDC, 0xAC, 0xC4, 0xF1, 0xAF, 0x48,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 0x0A, 0x50, 0x42, 0x0F, 0xBA, 0xBE, 0xC7, 0x07, 0xDE, 0xD5, 0x78, 0x26,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 0x65, 0xD3, 0xD1, 0x5F, 0xE3, 0x28, 0x21, 0x89, 0x59, 0x67, 0xFC, 0x6E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 0xB1, 0xD7, 0xF8, 0x9D, 0xF3, 0x7A, 0x3A, 0xB9, 0xC6, 0x09, 0x41, 0xC3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 0xAE, 0xE0, 0xDB, 0x33, 0x44, 0x69, 0x92, 0x2D, 0x52, 0xFE, 0x16, 0xA9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 0x0C, 0x8B, 0x80, 0xA5, 0x4A, 0x5B, 0xB5, 0x97, 0xC9, 0x2A, 0xA2, 0x9A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 0xC0, 0x23, 0x86, 0x4E, 0xBC, 0x61, 0xEF, 0xCC, 0x11, 0xE5, 0x72, 0x1D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 0x3D, 0x7C, 0xEB, 0xE8, 0xE9, 0x3C, 0xEA, 0x8F, 0x7D, 0x9F, 0xEC, 0x75,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 0x1E, 0xF5, 0x3E, 0x38, 0xF6, 0xD9, 0x3F, 0xCF, 0x76, 0xFA, 0x1F, 0x84,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 0xA0, 0x70, 0xED, 0x14, 0x90, 0xB3, 0x7E, 0x58, 0xFB, 0xE2, 0x20, 0x64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 0xD0, 0xDD, 0x77, 0xAD, 0xDA, 0xC5, 0x40, 0xF2, 0x39, 0xB0, 0xF7, 0x49,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 0xB4, 0x0B, 0x7F, 0x51, 0x15, 0x43, 0x91, 0x10, 0x71, 0xBB, 0xEE, 0xBF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 0x85, 0xC8, 0xA1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) static const u8 exp_to_poly[492] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x4D, 0x9A, 0x79, 0xF2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 0xA9, 0x1F, 0x3E, 0x7C, 0xF8, 0xBD, 0x37, 0x6E, 0xDC, 0xF5, 0xA7, 0x03,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 0x06, 0x0C, 0x18, 0x30, 0x60, 0xC0, 0xCD, 0xD7, 0xE3, 0x8B, 0x5B, 0xB6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 0x21, 0x42, 0x84, 0x45, 0x8A, 0x59, 0xB2, 0x29, 0x52, 0xA4, 0x05, 0x0A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 0x14, 0x28, 0x50, 0xA0, 0x0D, 0x1A, 0x34, 0x68, 0xD0, 0xED, 0x97, 0x63,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 0xC6, 0xC1, 0xCF, 0xD3, 0xEB, 0x9B, 0x7B, 0xF6, 0xA1, 0x0F, 0x1E, 0x3C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 0x78, 0xF0, 0xAD, 0x17, 0x2E, 0x5C, 0xB8, 0x3D, 0x7A, 0xF4, 0xA5, 0x07,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 0x0E, 0x1C, 0x38, 0x70, 0xE0, 0x8D, 0x57, 0xAE, 0x11, 0x22, 0x44, 0x88,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 0x5D, 0xBA, 0x39, 0x72, 0xE4, 0x85, 0x47, 0x8E, 0x51, 0xA2, 0x09, 0x12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 0x24, 0x48, 0x90, 0x6D, 0xDA, 0xF9, 0xBF, 0x33, 0x66, 0xCC, 0xD5, 0xE7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 0x83, 0x4B, 0x96, 0x61, 0xC2, 0xC9, 0xDF, 0xF3, 0xAB, 0x1B, 0x36, 0x6C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 0xD8, 0xFD, 0xB7, 0x23, 0x46, 0x8C, 0x55, 0xAA, 0x19, 0x32, 0x64, 0xC8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 0xDD, 0xF7, 0xA3, 0x0B, 0x16, 0x2C, 0x58, 0xB0, 0x2D, 0x5A, 0xB4, 0x25,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 0x4A, 0x94, 0x65, 0xCA, 0xD9, 0xFF, 0xB3, 0x2B, 0x56, 0xAC, 0x15, 0x2A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 0x54, 0xA8, 0x1D, 0x3A, 0x74, 0xE8, 0x9D, 0x77, 0xEE, 0x91, 0x6F, 0xDE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 0xF1, 0xAF, 0x13, 0x26, 0x4C, 0x98, 0x7D, 0xFA, 0xB9, 0x3F, 0x7E, 0xFC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 0xB5, 0x27, 0x4E, 0x9C, 0x75, 0xEA, 0x99, 0x7F, 0xFE, 0xB1, 0x2F, 0x5E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 0xBC, 0x35, 0x6A, 0xD4, 0xE5, 0x87, 0x43, 0x86, 0x41, 0x82, 0x49, 0x92,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 0x69, 0xD2, 0xE9, 0x9F, 0x73, 0xE6, 0x81, 0x4F, 0x9E, 0x71, 0xE2, 0x89,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 0x5F, 0xBE, 0x31, 0x62, 0xC4, 0xC5, 0xC7, 0xC3, 0xCB, 0xDB, 0xFB, 0xBB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 0x3B, 0x76, 0xEC, 0x95, 0x67, 0xCE, 0xD1, 0xEF, 0x93, 0x6B, 0xD6, 0xE1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 0x8F, 0x53, 0xA6, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x4D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 0x9A, 0x79, 0xF2, 0xA9, 0x1F, 0x3E, 0x7C, 0xF8, 0xBD, 0x37, 0x6E, 0xDC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 0xF5, 0xA7, 0x03, 0x06, 0x0C, 0x18, 0x30, 0x60, 0xC0, 0xCD, 0xD7, 0xE3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 0x8B, 0x5B, 0xB6, 0x21, 0x42, 0x84, 0x45, 0x8A, 0x59, 0xB2, 0x29, 0x52,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 0xA4, 0x05, 0x0A, 0x14, 0x28, 0x50, 0xA0, 0x0D, 0x1A, 0x34, 0x68, 0xD0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 0xED, 0x97, 0x63, 0xC6, 0xC1, 0xCF, 0xD3, 0xEB, 0x9B, 0x7B, 0xF6, 0xA1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 0x0F, 0x1E, 0x3C, 0x78, 0xF0, 0xAD, 0x17, 0x2E, 0x5C, 0xB8, 0x3D, 0x7A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 0xF4, 0xA5, 0x07, 0x0E, 0x1C, 0x38, 0x70, 0xE0, 0x8D, 0x57, 0xAE, 0x11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 0x22, 0x44, 0x88, 0x5D, 0xBA, 0x39, 0x72, 0xE4, 0x85, 0x47, 0x8E, 0x51,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 0xA2, 0x09, 0x12, 0x24, 0x48, 0x90, 0x6D, 0xDA, 0xF9, 0xBF, 0x33, 0x66,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 0xCC, 0xD5, 0xE7, 0x83, 0x4B, 0x96, 0x61, 0xC2, 0xC9, 0xDF, 0xF3, 0xAB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 0x1B, 0x36, 0x6C, 0xD8, 0xFD, 0xB7, 0x23, 0x46, 0x8C, 0x55, 0xAA, 0x19,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 0x32, 0x64, 0xC8, 0xDD, 0xF7, 0xA3, 0x0B, 0x16, 0x2C, 0x58, 0xB0, 0x2D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 0x5A, 0xB4, 0x25, 0x4A, 0x94, 0x65, 0xCA, 0xD9, 0xFF, 0xB3, 0x2B, 0x56,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 0xAC, 0x15, 0x2A, 0x54, 0xA8, 0x1D, 0x3A, 0x74, 0xE8, 0x9D, 0x77, 0xEE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 0x91, 0x6F, 0xDE, 0xF1, 0xAF, 0x13, 0x26, 0x4C, 0x98, 0x7D, 0xFA, 0xB9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 0x3F, 0x7E, 0xFC, 0xB5, 0x27, 0x4E, 0x9C, 0x75, 0xEA, 0x99, 0x7F, 0xFE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 0xB1, 0x2F, 0x5E, 0xBC, 0x35, 0x6A, 0xD4, 0xE5, 0x87, 0x43, 0x86, 0x41,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 0x82, 0x49, 0x92, 0x69, 0xD2, 0xE9, 0x9F, 0x73, 0xE6, 0x81, 0x4F, 0x9E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 0x71, 0xE2, 0x89, 0x5F, 0xBE, 0x31, 0x62, 0xC4, 0xC5, 0xC7, 0xC3, 0xCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) /* The table constants are indices of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) * S-box entries, preprocessed through q0 and q1. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) static const u8 calc_sb_tbl[512] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 0xA9, 0x75, 0x67, 0xF3, 0xB3, 0xC6, 0xE8, 0xF4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 0x04, 0xDB, 0xFD, 0x7B, 0xA3, 0xFB, 0x76, 0xC8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 0x9A, 0x4A, 0x92, 0xD3, 0x80, 0xE6, 0x78, 0x6B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 0xE4, 0x45, 0xDD, 0x7D, 0xD1, 0xE8, 0x38, 0x4B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 0x0D, 0xD6, 0xC6, 0x32, 0x35, 0xD8, 0x98, 0xFD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 0x18, 0x37, 0xF7, 0x71, 0xEC, 0xF1, 0x6C, 0xE1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 0x43, 0x30, 0x75, 0x0F, 0x37, 0xF8, 0x26, 0x1B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 0xFA, 0x87, 0x13, 0xFA, 0x94, 0x06, 0x48, 0x3F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 0xF2, 0x5E, 0xD0, 0xBA, 0x8B, 0xAE, 0x30, 0x5B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 0x84, 0x8A, 0x54, 0x00, 0xDF, 0xBC, 0x23, 0x9D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 0x19, 0x6D, 0x5B, 0xC1, 0x3D, 0xB1, 0x59, 0x0E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 0xF3, 0x80, 0xAE, 0x5D, 0xA2, 0xD2, 0x82, 0xD5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 0x63, 0xA0, 0x01, 0x84, 0x83, 0x07, 0x2E, 0x14,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 0xD9, 0xB5, 0x51, 0x90, 0x9B, 0x2C, 0x7C, 0xA3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 0xA6, 0xB2, 0xEB, 0x73, 0xA5, 0x4C, 0xBE, 0x54,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 0x16, 0x92, 0x0C, 0x74, 0xE3, 0x36, 0x61, 0x51,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 0xC0, 0x38, 0x8C, 0xB0, 0x3A, 0xBD, 0xF5, 0x5A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 0x73, 0xFC, 0x2C, 0x60, 0x25, 0x62, 0x0B, 0x96,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 0xBB, 0x6C, 0x4E, 0x42, 0x89, 0xF7, 0x6B, 0x10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 0x53, 0x7C, 0x6A, 0x28, 0xB4, 0x27, 0xF1, 0x8C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 0xE1, 0x13, 0xE6, 0x95, 0xBD, 0x9C, 0x45, 0xC7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 0xE2, 0x24, 0xF4, 0x46, 0xB6, 0x3B, 0x66, 0x70,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 0xCC, 0xCA, 0x95, 0xE3, 0x03, 0x85, 0x56, 0xCB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 0xD4, 0x11, 0x1C, 0xD0, 0x1E, 0x93, 0xD7, 0xB8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 0xFB, 0xA6, 0xC3, 0x83, 0x8E, 0x20, 0xB5, 0xFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 0xE9, 0x9F, 0xCF, 0x77, 0xBF, 0xC3, 0xBA, 0xCC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 0xEA, 0x03, 0x77, 0x6F, 0x39, 0x08, 0xAF, 0xBF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 0x33, 0x40, 0xC9, 0xE7, 0x62, 0x2B, 0x71, 0xE2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 0x81, 0x79, 0x79, 0x0C, 0x09, 0xAA, 0xAD, 0x82,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 0x24, 0x41, 0xCD, 0x3A, 0xF9, 0xEA, 0xD8, 0xB9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 0xE5, 0xE4, 0xC5, 0x9A, 0xB9, 0xA4, 0x4D, 0x97,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 0x44, 0x7E, 0x08, 0xDA, 0x86, 0x7A, 0xE7, 0x17,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 0xA1, 0x66, 0x1D, 0x94, 0xAA, 0xA1, 0xED, 0x1D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 0x06, 0x3D, 0x70, 0xF0, 0xB2, 0xDE, 0xD2, 0xB3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 0x41, 0x0B, 0x7B, 0x72, 0xA0, 0xA7, 0x11, 0x1C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 0x31, 0xEF, 0xC2, 0xD1, 0x27, 0x53, 0x90, 0x3E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 0x20, 0x8F, 0xF6, 0x33, 0x60, 0x26, 0xFF, 0x5F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 0x96, 0xEC, 0x5C, 0x76, 0xB1, 0x2A, 0xAB, 0x49,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 0x9E, 0x81, 0x9C, 0x88, 0x52, 0xEE, 0x1B, 0x21,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 0x5F, 0xC4, 0x93, 0x1A, 0x0A, 0xEB, 0xEF, 0xD9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 0x91, 0xC5, 0x85, 0x39, 0x49, 0x99, 0xEE, 0xCD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 0x2D, 0xAD, 0x4F, 0x31, 0x8F, 0x8B, 0x3B, 0x01,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 0x47, 0x18, 0x87, 0x23, 0x6D, 0xDD, 0x46, 0x1F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 0xD6, 0x4E, 0x3E, 0x2D, 0x69, 0xF9, 0x64, 0x48,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 0x2A, 0x4F, 0xCE, 0xF2, 0xCB, 0x65, 0x2F, 0x8E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 0xFC, 0x78, 0x97, 0x5C, 0x05, 0x58, 0x7A, 0x19,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 0xAC, 0x8D, 0x7F, 0xE5, 0xD5, 0x98, 0x1A, 0x57,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 0x4B, 0x67, 0x0E, 0x7F, 0xA7, 0x05, 0x5A, 0x64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 0x28, 0xAF, 0x14, 0x63, 0x3F, 0xB6, 0x29, 0xFE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 0x88, 0xF5, 0x3C, 0xB7, 0x4C, 0x3C, 0x02, 0xA5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 0xB8, 0xCE, 0xDA, 0xE9, 0xB0, 0x68, 0x17, 0x44,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 0x55, 0xE0, 0x1F, 0x4D, 0x8A, 0x43, 0x7D, 0x69,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 0x57, 0x29, 0xC7, 0x2E, 0x8D, 0xAC, 0x74, 0x15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 0xB7, 0x59, 0xC4, 0xA8, 0x9F, 0x0A, 0x72, 0x9E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 0x7E, 0x6E, 0x15, 0x47, 0x22, 0xDF, 0x12, 0x34,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 0x58, 0x35, 0x07, 0x6A, 0x99, 0xCF, 0x34, 0xDC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 0x6E, 0x22, 0x50, 0xC9, 0xDE, 0xC0, 0x68, 0x9B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 0x65, 0x89, 0xBC, 0xD4, 0xDB, 0xED, 0xF8, 0xAB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 0xC8, 0x12, 0xA8, 0xA2, 0x2B, 0x0D, 0x40, 0x52,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 0xDC, 0xBB, 0xFE, 0x02, 0x32, 0x2F, 0xA4, 0xA9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 0xCA, 0xD7, 0x10, 0x61, 0x21, 0x1E, 0xF0, 0xB4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 0xD3, 0x50, 0x5D, 0x04, 0x0F, 0xF6, 0x00, 0xC2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 0x6F, 0x16, 0x9D, 0x25, 0x36, 0x86, 0x42, 0x56,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 0x4A, 0x55, 0x5E, 0x09, 0xC1, 0xBE, 0xE0, 0x91
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) /* Macro to perform one column of the RS matrix multiplication. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) * parameters a, b, c, and d are the four bytes of output; i is the index
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) * of the key bytes, and w, x, y, and z, are the column of constants from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) * the RS matrix, preprocessed through the poly_to_exp table. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) #define CALC_S(a, b, c, d, i, w, x, y, z) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (key[i]) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) tmp = poly_to_exp[key[i] - 1]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) (a) ^= exp_to_poly[tmp + (w)]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) (b) ^= exp_to_poly[tmp + (x)]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) (c) ^= exp_to_poly[tmp + (y)]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) (d) ^= exp_to_poly[tmp + (z)]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) /* Macros to calculate the key-dependent S-boxes for a 128-bit key using
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * the S vector from CALC_S. CALC_SB_2 computes a single entry in all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) * four S-boxes, where i is the index of the entry to compute, and a and b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) * are the index numbers preprocessed through the q0 and q1 tables
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) * respectively. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) #define CALC_SB_2(i, a, b) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) ctx->s[0][i] = mds[0][q0[(a) ^ sa] ^ se]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) ctx->s[1][i] = mds[1][q0[(b) ^ sb] ^ sf]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) ctx->s[2][i] = mds[2][q1[(a) ^ sc] ^ sg]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) ctx->s[3][i] = mds[3][q1[(b) ^ sd] ^ sh]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) /* Macro exactly like CALC_SB_2, but for 192-bit keys. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) #define CALC_SB192_2(i, a, b) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) ctx->s[0][i] = mds[0][q0[q0[(b) ^ sa] ^ se] ^ si]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) ctx->s[1][i] = mds[1][q0[q1[(b) ^ sb] ^ sf] ^ sj]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) ctx->s[2][i] = mds[2][q1[q0[(a) ^ sc] ^ sg] ^ sk]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) ctx->s[3][i] = mds[3][q1[q1[(a) ^ sd] ^ sh] ^ sl];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) /* Macro exactly like CALC_SB_2, but for 256-bit keys. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) #define CALC_SB256_2(i, a, b) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) ctx->s[0][i] = mds[0][q0[q0[q1[(b) ^ sa] ^ se] ^ si] ^ sm]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) ctx->s[1][i] = mds[1][q0[q1[q1[(a) ^ sb] ^ sf] ^ sj] ^ sn]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) ctx->s[2][i] = mds[2][q1[q0[q0[(a) ^ sc] ^ sg] ^ sk] ^ so]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) ctx->s[3][i] = mds[3][q1[q1[q0[(b) ^ sd] ^ sh] ^ sl] ^ sp];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) /* Macros to calculate the whitening and round subkeys. CALC_K_2 computes the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) * last two stages of the h() function for a given index (either 2i or 2i+1).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) * a, b, c, and d are the four bytes going into the last two stages. For
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) * 128-bit keys, this is the entire h() function and a and c are the index
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) * preprocessed through q0 and q1 respectively; for longer keys they are the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) * output of previous stages. j is the index of the first key byte to use.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) * CALC_K computes a pair of subkeys for 128-bit Twofish, by calling CALC_K_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) * twice, doing the Pseudo-Hadamard Transform, and doing the necessary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) * rotations. Its parameters are: a, the array to write the results into,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) * j, the index of the first output entry, k and l, the preprocessed indices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) * for index 2i, and m and n, the preprocessed indices for index 2i+1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) * CALC_K192_2 expands CALC_K_2 to handle 192-bit keys, by doing an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) * additional lookup-and-XOR stage. The parameters a, b, c and d are the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) * four bytes going into the last three stages. For 192-bit keys, c = d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) * are the index preprocessed through q0, and a = b are the index
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) * preprocessed through q1; j is the index of the first key byte to use.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) * CALC_K192 is identical to CALC_K but for using the CALC_K192_2 macro
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) * instead of CALC_K_2.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) * CALC_K256_2 expands CALC_K192_2 to handle 256-bit keys, by doing an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) * additional lookup-and-XOR stage. The parameters a and b are the index
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) * preprocessed through q0 and q1 respectively; j is the index of the first
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) * key byte to use. CALC_K256 is identical to CALC_K but for using the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) * CALC_K256_2 macro instead of CALC_K_2. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) #define CALC_K_2(a, b, c, d, j) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) mds[0][q0[a ^ key[(j) + 8]] ^ key[j]] \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) ^ mds[1][q0[b ^ key[(j) + 9]] ^ key[(j) + 1]] \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) ^ mds[2][q1[c ^ key[(j) + 10]] ^ key[(j) + 2]] \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) ^ mds[3][q1[d ^ key[(j) + 11]] ^ key[(j) + 3]]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) #define CALC_K(a, j, k, l, m, n) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) x = CALC_K_2 (k, l, k, l, 0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) y = CALC_K_2 (m, n, m, n, 4); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) y = rol32(y, 8); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) x += y; y += x; ctx->a[j] = x; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) ctx->a[(j) + 1] = rol32(y, 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) #define CALC_K192_2(a, b, c, d, j) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) CALC_K_2 (q0[a ^ key[(j) + 16]], \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) q1[b ^ key[(j) + 17]], \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) q0[c ^ key[(j) + 18]], \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) q1[d ^ key[(j) + 19]], j)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) #define CALC_K192(a, j, k, l, m, n) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) x = CALC_K192_2 (l, l, k, k, 0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) y = CALC_K192_2 (n, n, m, m, 4); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) y = rol32(y, 8); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) x += y; y += x; ctx->a[j] = x; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) ctx->a[(j) + 1] = rol32(y, 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) #define CALC_K256_2(a, b, j) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) CALC_K192_2 (q1[b ^ key[(j) + 24]], \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) q1[a ^ key[(j) + 25]], \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) q0[a ^ key[(j) + 26]], \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) q0[b ^ key[(j) + 27]], j)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) #define CALC_K256(a, j, k, l, m, n) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) x = CALC_K256_2 (k, l, 0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) y = CALC_K256_2 (m, n, 4); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) y = rol32(y, 8); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) x += y; y += x; ctx->a[j] = x; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) ctx->a[(j) + 1] = rol32(y, 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) /* Perform the key setup. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) unsigned int key_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) int i, j, k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) /* Temporaries for CALC_K. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) u32 x, y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) /* The S vector used to key the S-boxes, split up into individual bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) * 128-bit keys use only sa through sh; 256-bit use all of them. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) u8 sa = 0, sb = 0, sc = 0, sd = 0, se = 0, sf = 0, sg = 0, sh = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) u8 si = 0, sj = 0, sk = 0, sl = 0, sm = 0, sn = 0, so = 0, sp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) /* Temporary for CALC_S. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) u8 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) /* Check key length. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) if (key_len % 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) return -EINVAL; /* unsupported key length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) /* Compute the first two words of the S vector. The magic numbers are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) * the entries of the RS matrix, preprocessed through poly_to_exp. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) * numbers in the comments are the original (polynomial form) matrix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) * entries. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) CALC_S (sa, sb, sc, sd, 0, 0x00, 0x2D, 0x01, 0x2D); /* 01 A4 02 A4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) CALC_S (sa, sb, sc, sd, 1, 0x2D, 0xA4, 0x44, 0x8A); /* A4 56 A1 55 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) CALC_S (sa, sb, sc, sd, 2, 0x8A, 0xD5, 0xBF, 0xD1); /* 55 82 FC 87 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) CALC_S (sa, sb, sc, sd, 3, 0xD1, 0x7F, 0x3D, 0x99); /* 87 F3 C1 5A */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) CALC_S (sa, sb, sc, sd, 4, 0x99, 0x46, 0x66, 0x96); /* 5A 1E 47 58 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) CALC_S (sa, sb, sc, sd, 5, 0x96, 0x3C, 0x5B, 0xED); /* 58 C6 AE DB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) CALC_S (sa, sb, sc, sd, 6, 0xED, 0x37, 0x4F, 0xE0); /* DB 68 3D 9E */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) CALC_S (sa, sb, sc, sd, 7, 0xE0, 0xD0, 0x8C, 0x17); /* 9E E5 19 03 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) CALC_S (se, sf, sg, sh, 8, 0x00, 0x2D, 0x01, 0x2D); /* 01 A4 02 A4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) CALC_S (se, sf, sg, sh, 9, 0x2D, 0xA4, 0x44, 0x8A); /* A4 56 A1 55 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) CALC_S (se, sf, sg, sh, 10, 0x8A, 0xD5, 0xBF, 0xD1); /* 55 82 FC 87 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) CALC_S (se, sf, sg, sh, 11, 0xD1, 0x7F, 0x3D, 0x99); /* 87 F3 C1 5A */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) CALC_S (se, sf, sg, sh, 12, 0x99, 0x46, 0x66, 0x96); /* 5A 1E 47 58 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) CALC_S (se, sf, sg, sh, 13, 0x96, 0x3C, 0x5B, 0xED); /* 58 C6 AE DB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) CALC_S (se, sf, sg, sh, 14, 0xED, 0x37, 0x4F, 0xE0); /* DB 68 3D 9E */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) CALC_S (se, sf, sg, sh, 15, 0xE0, 0xD0, 0x8C, 0x17); /* 9E E5 19 03 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) if (key_len == 24 || key_len == 32) { /* 192- or 256-bit key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) /* Calculate the third word of the S vector */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) CALC_S (si, sj, sk, sl, 16, 0x00, 0x2D, 0x01, 0x2D); /* 01 A4 02 A4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) CALC_S (si, sj, sk, sl, 17, 0x2D, 0xA4, 0x44, 0x8A); /* A4 56 A1 55 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) CALC_S (si, sj, sk, sl, 18, 0x8A, 0xD5, 0xBF, 0xD1); /* 55 82 FC 87 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) CALC_S (si, sj, sk, sl, 19, 0xD1, 0x7F, 0x3D, 0x99); /* 87 F3 C1 5A */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) CALC_S (si, sj, sk, sl, 20, 0x99, 0x46, 0x66, 0x96); /* 5A 1E 47 58 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) CALC_S (si, sj, sk, sl, 21, 0x96, 0x3C, 0x5B, 0xED); /* 58 C6 AE DB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) CALC_S (si, sj, sk, sl, 22, 0xED, 0x37, 0x4F, 0xE0); /* DB 68 3D 9E */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) CALC_S (si, sj, sk, sl, 23, 0xE0, 0xD0, 0x8C, 0x17); /* 9E E5 19 03 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) if (key_len == 32) { /* 256-bit key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) /* Calculate the fourth word of the S vector */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) CALC_S (sm, sn, so, sp, 24, 0x00, 0x2D, 0x01, 0x2D); /* 01 A4 02 A4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) CALC_S (sm, sn, so, sp, 25, 0x2D, 0xA4, 0x44, 0x8A); /* A4 56 A1 55 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) CALC_S (sm, sn, so, sp, 26, 0x8A, 0xD5, 0xBF, 0xD1); /* 55 82 FC 87 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) CALC_S (sm, sn, so, sp, 27, 0xD1, 0x7F, 0x3D, 0x99); /* 87 F3 C1 5A */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) CALC_S (sm, sn, so, sp, 28, 0x99, 0x46, 0x66, 0x96); /* 5A 1E 47 58 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) CALC_S (sm, sn, so, sp, 29, 0x96, 0x3C, 0x5B, 0xED); /* 58 C6 AE DB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) CALC_S (sm, sn, so, sp, 30, 0xED, 0x37, 0x4F, 0xE0); /* DB 68 3D 9E */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) CALC_S (sm, sn, so, sp, 31, 0xE0, 0xD0, 0x8C, 0x17); /* 9E E5 19 03 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) /* Compute the S-boxes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) for ( i = j = 0, k = 1; i < 256; i++, j += 2, k += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) CALC_SB256_2( i, calc_sb_tbl[j], calc_sb_tbl[k] );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) /* CALC_K256/CALC_K192/CALC_K loops were unrolled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) * Unrolling produced x2.5 more code (+18k on i386),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) * and speeded up key setup by 7%:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) * unrolled: twofish_setkey/sec: 41128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) * loop: twofish_setkey/sec: 38148
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) * CALC_K256: ~100 insns each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) * CALC_K192: ~90 insns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) * CALC_K: ~70 insns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) /* Calculate whitening and round subkeys */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) for ( i = 0; i < 8; i += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) CALC_K256 (w, i, q0[i], q1[i], q0[i+1], q1[i+1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) for ( i = 0; i < 32; i += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) CALC_K256 (k, i, q0[i+8], q1[i+8], q0[i+9], q1[i+9]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) } else if (key_len == 24) { /* 192-bit key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) /* Compute the S-boxes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) for ( i = j = 0, k = 1; i < 256; i++, j += 2, k += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) CALC_SB192_2( i, calc_sb_tbl[j], calc_sb_tbl[k] );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) /* Calculate whitening and round subkeys */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) for ( i = 0; i < 8; i += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) CALC_K192 (w, i, q0[i], q1[i], q0[i+1], q1[i+1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) for ( i = 0; i < 32; i += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) CALC_K192 (k, i, q0[i+8], q1[i+8], q0[i+9], q1[i+9]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) } else { /* 128-bit key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) /* Compute the S-boxes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) for ( i = j = 0, k = 1; i < 256; i++, j += 2, k += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) CALC_SB_2( i, calc_sb_tbl[j], calc_sb_tbl[k] );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) /* Calculate whitening and round subkeys */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) for ( i = 0; i < 8; i += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) CALC_K (w, i, q0[i], q1[i], q0[i+1], q1[i+1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) for ( i = 0; i < 32; i += 2 ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) CALC_K (k, i, q0[i+8], q1[i+8], q0[i+9], q1[i+9]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) EXPORT_SYMBOL_GPL(__twofish_setkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) return __twofish_setkey(crypto_tfm_ctx(tfm), key, key_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) EXPORT_SYMBOL_GPL(twofish_setkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) MODULE_DESCRIPTION("Twofish cipher common functions");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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