Xuyi Wang / wolfSSL

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wolfssl/wolfcrypt/idea.h@15:117db924cf7c, 2018-08-18 (annotated)

Committer:
wolfSSL
Date:
Sat Aug 18 22:20:43 2018 +0000
Revision:
15:117db924cf7c
wolfSSL 3.15.3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 15:117db924cf7c 1 /* idea.h
wolfSSL 15:117db924cf7c 2 *
wolfSSL 15:117db924cf7c 3 * Copyright (C) 2006-2017 wolfSSL Inc.
wolfSSL 15:117db924cf7c 4 *
wolfSSL 15:117db924cf7c 5 * This file is part of wolfSSL.
wolfSSL 15:117db924cf7c 6 *
wolfSSL 15:117db924cf7c 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 15:117db924cf7c 8 * it under the terms of the GNU General Public License as published by
wolfSSL 15:117db924cf7c 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 15:117db924cf7c 10 * (at your option) any later version.
wolfSSL 15:117db924cf7c 11 *
wolfSSL 15:117db924cf7c 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 15:117db924cf7c 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 15:117db924cf7c 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 15:117db924cf7c 15 * GNU General Public License for more details.
wolfSSL 15:117db924cf7c 16 *
wolfSSL 15:117db924cf7c 17 * You should have received a copy of the GNU General Public License
wolfSSL 15:117db924cf7c 18 * along with this program; if not, write to the Free Software
wolfSSL 15:117db924cf7c 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 15:117db924cf7c 20 */
wolfSSL 15:117db924cf7c 21
wolfSSL 15:117db924cf7c 22 /*!
wolfSSL 15:117db924cf7c 23 \file wolfssl/wolfcrypt/idea.h
wolfSSL 15:117db924cf7c 24 */
wolfSSL 15:117db924cf7c 25
wolfSSL 15:117db924cf7c 26 #ifndef WOLF_CRYPT_IDEA_H
wolfSSL 15:117db924cf7c 27 #define WOLF_CRYPT_IDEA_H
wolfSSL 15:117db924cf7c 28
wolfSSL 15:117db924cf7c 29 #include <wolfssl/wolfcrypt/types.h>
wolfSSL 15:117db924cf7c 30
wolfSSL 15:117db924cf7c 31 #ifdef HAVE_IDEA
wolfSSL 15:117db924cf7c 32
wolfSSL 15:117db924cf7c 33 #ifdef __cplusplus
wolfSSL 15:117db924cf7c 34 extern "C" {
wolfSSL 15:117db924cf7c 35 #endif
wolfSSL 15:117db924cf7c 36
wolfSSL 15:117db924cf7c 37 enum {
wolfSSL 15:117db924cf7c 38 IDEA_MODULO = 0x10001, /* 2^16+1 */
wolfSSL 15:117db924cf7c 39 IDEA_2EXP16 = 0x10000, /* 2^16 */
wolfSSL 15:117db924cf7c 40 IDEA_MASK = 0xFFFF, /* 16 bits set to one */
wolfSSL 15:117db924cf7c 41 IDEA_ROUNDS = 8, /* number of rounds for IDEA */
wolfSSL 15:117db924cf7c 42 IDEA_SK_NUM = (6*IDEA_ROUNDS + 4), /* number of subkeys */
wolfSSL 15:117db924cf7c 43 IDEA_KEY_SIZE = 16, /* size of key in bytes */
wolfSSL 15:117db924cf7c 44 IDEA_BLOCK_SIZE = 8, /* size of IDEA blocks in bytes */
wolfSSL 15:117db924cf7c 45 IDEA_IV_SIZE = 8, /* size of IDEA IV in bytes */
wolfSSL 15:117db924cf7c 46 IDEA_ENCRYPTION = 0,
wolfSSL 15:117db924cf7c 47 IDEA_DECRYPTION = 1
wolfSSL 15:117db924cf7c 48 };
wolfSSL 15:117db924cf7c 49
wolfSSL 15:117db924cf7c 50 /* IDEA encryption and decryption */
wolfSSL 15:117db924cf7c 51 typedef struct Idea {
wolfSSL 15:117db924cf7c 52 word32 reg[IDEA_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
wolfSSL 15:117db924cf7c 53 word32 tmp[IDEA_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
wolfSSL 15:117db924cf7c 54 word16 skey[IDEA_SK_NUM]; /* 832 bits expanded key */
wolfSSL 15:117db924cf7c 55 } Idea;
wolfSSL 15:117db924cf7c 56
wolfSSL 15:117db924cf7c 57 WOLFSSL_API int wc_IdeaSetKey(Idea *idea, const byte* key, word16 keySz,
wolfSSL 15:117db924cf7c 58 const byte *iv, int dir);
wolfSSL 15:117db924cf7c 59 WOLFSSL_API int wc_IdeaSetIV(Idea *idea, const byte* iv);
wolfSSL 15:117db924cf7c 60 WOLFSSL_API int wc_IdeaCipher(Idea *idea, byte* out, const byte* in);
wolfSSL 15:117db924cf7c 61 WOLFSSL_API int wc_IdeaCbcEncrypt(Idea *idea, byte* out,
wolfSSL 15:117db924cf7c 62 const byte* in, word32 len);
wolfSSL 15:117db924cf7c 63 WOLFSSL_API int wc_IdeaCbcDecrypt(Idea *idea, byte* out,
wolfSSL 15:117db924cf7c 64 const byte* in, word32 len);
wolfSSL 15:117db924cf7c 65 #ifdef __cplusplus
wolfSSL 15:117db924cf7c 66 } /* extern "C" */
wolfSSL 15:117db924cf7c 67 #endif
wolfSSL 15:117db924cf7c 68
wolfSSL 15:117db924cf7c 69 #endif /* HAVE_IDEA */
wolfSSL 15:117db924cf7c 70 #endif /* WOLF_CRYPT_IDEA_H */
wolfSSL 15:117db924cf7c 71