1 /* 2 * Copyright 2007-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 /* 11 * Copyright (c) 2007 KISA(Korea Information Security Agency). All rights reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Neither the name of author nor the names of its contributors may 19 * be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 */ 35 #ifndef OSSL_CRYPTO_SEED_LOCAL_H 36 # define OSSL_CRYPTO_SEED_LOCAL_H 37 38 # include <openssl/e_os2.h> 39 # include <openssl/seed.h> 40 41 # ifdef SEED_LONG /* need 32-bit type */ 42 typedef unsigned long seed_word; 43 # else 44 typedef unsigned int seed_word; 45 # endif 46 47 48 # define char2word(c, i) \ 49 (i) = ((((seed_word)(c)[0]) << 24) | (((seed_word)(c)[1]) << 16) | (((seed_word)(c)[2]) << 8) | ((seed_word)(c)[3])) 50 51 # define word2char(l, c) \ 52 *((c)+0) = (unsigned char)((l)>>24) & 0xff; \ 53 *((c)+1) = (unsigned char)((l)>>16) & 0xff; \ 54 *((c)+2) = (unsigned char)((l)>> 8) & 0xff; \ 55 *((c)+3) = (unsigned char)((l)) & 0xff 56 57 # define KEYSCHEDULE_UPDATE0(T0, T1, X1, X2, X3, X4, KC) \ 58 (T0) = (X3); \ 59 (X3) = (((X3)<<8) ^ ((X4)>>24)) & 0xffffffff; \ 60 (X4) = (((X4)<<8) ^ ((T0)>>24)) & 0xffffffff; \ 61 (T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \ 62 (T1) = ((X2) + (KC) - (X4)) & 0xffffffff 63 64 # define KEYSCHEDULE_UPDATE1(T0, T1, X1, X2, X3, X4, KC) \ 65 (T0) = (X1); \ 66 (X1) = (((X1)>>8) ^ ((X2)<<24)) & 0xffffffff; \ 67 (X2) = (((X2)>>8) ^ ((T0)<<24)) & 0xffffffff; \ 68 (T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \ 69 (T1) = ((X2) + (KC) - (X4)) & 0xffffffff 70 71 # define KEYUPDATE_TEMP(T0, T1, K) \ 72 (K)[0] = G_FUNC((T0)); \ 73 (K)[1] = G_FUNC((T1)) 74 75 # define XOR_SEEDBLOCK(DST, SRC) \ 76 ((DST))[0] ^= ((SRC))[0]; \ 77 ((DST))[1] ^= ((SRC))[1]; \ 78 ((DST))[2] ^= ((SRC))[2]; \ 79 ((DST))[3] ^= ((SRC))[3] 80 81 # define MOV_SEEDBLOCK(DST, SRC) \ 82 ((DST))[0] = ((SRC))[0]; \ 83 ((DST))[1] = ((SRC))[1]; \ 84 ((DST))[2] = ((SRC))[2]; \ 85 ((DST))[3] = ((SRC))[3] 86 87 # define CHAR2WORD(C, I) \ 88 char2word((C), (I)[0]); \ 89 char2word((C+4), (I)[1]); \ 90 char2word((C+8), (I)[2]); \ 91 char2word((C+12), (I)[3]) 92 93 # define WORD2CHAR(I, C) \ 94 word2char((I)[0], (C)); \ 95 word2char((I)[1], (C+4)); \ 96 word2char((I)[2], (C+8)); \ 97 word2char((I)[3], (C+12)) 98 99 # define E_SEED(T0, T1, X1, X2, X3, X4, rbase) \ 100 (T0) = (X3) ^ (ks->data)[(rbase)]; \ 101 (T1) = (X4) ^ (ks->data)[(rbase)+1]; \ 102 (T1) ^= (T0); \ 103 (T1) = G_FUNC((T1)); \ 104 (T0) = ((T0) + (T1)) & 0xffffffff; \ 105 (T0) = G_FUNC((T0)); \ 106 (T1) = ((T1) + (T0)) & 0xffffffff; \ 107 (T1) = G_FUNC((T1)); \ 108 (T0) = ((T0) + (T1)) & 0xffffffff; \ 109 (X1) ^= (T0); \ 110 (X2) ^= (T1) 111 112 #endif /* OSSL_CRYPTO_SEED_LOCAL_H */ 113
