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wolfSSL SSL/TLS library, support up to TLS1.3

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wolfssl/wolfcrypt/idea.h@13:f67a6c6013ca, 2017-08-22 (annotated)

Committer:
wolfSSL
Date:
Tue Aug 22 10:48:22 2017 +0000
Revision:
13:f67a6c6013ca
wolfSSL3.12.0 with TLS1.3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 13:f67a6c6013ca 1 /* idea.h
wolfSSL 13:f67a6c6013ca 2 *
wolfSSL 13:f67a6c6013ca 3 * Copyright (C) 2006-2016 wolfSSL Inc.
wolfSSL 13:f67a6c6013ca 4 *
wolfSSL 13:f67a6c6013ca 5 * This file is part of wolfSSL.
wolfSSL 13:f67a6c6013ca 6 *
wolfSSL 13:f67a6c6013ca 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 13:f67a6c6013ca 8 * it under the terms of the GNU General Public License as published by
wolfSSL 13:f67a6c6013ca 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 13:f67a6c6013ca 10 * (at your option) any later version.
wolfSSL 13:f67a6c6013ca 11 *
wolfSSL 13:f67a6c6013ca 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 13:f67a6c6013ca 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 13:f67a6c6013ca 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 13:f67a6c6013ca 15 * GNU General Public License for more details.
wolfSSL 13:f67a6c6013ca 16 *
wolfSSL 13:f67a6c6013ca 17 * You should have received a copy of the GNU General Public License
wolfSSL 13:f67a6c6013ca 18 * along with this program; if not, write to the Free Software
wolfSSL 13:f67a6c6013ca 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 13:f67a6c6013ca 20 */
wolfSSL 13:f67a6c6013ca 21
wolfSSL 13:f67a6c6013ca 22
wolfSSL 13:f67a6c6013ca 23 #ifndef WOLF_CRYPT_IDEA_H
wolfSSL 13:f67a6c6013ca 24 #define WOLF_CRYPT_IDEA_H
wolfSSL 13:f67a6c6013ca 25
wolfSSL 13:f67a6c6013ca 26 #include <wolfssl/wolfcrypt/types.h>
wolfSSL 13:f67a6c6013ca 27
wolfSSL 13:f67a6c6013ca 28 #ifdef HAVE_IDEA
wolfSSL 13:f67a6c6013ca 29
wolfSSL 13:f67a6c6013ca 30 #ifdef __cplusplus
wolfSSL 13:f67a6c6013ca 31 extern "C" {
wolfSSL 13:f67a6c6013ca 32 #endif
wolfSSL 13:f67a6c6013ca 33
wolfSSL 13:f67a6c6013ca 34 enum {
wolfSSL 13:f67a6c6013ca 35 IDEA_MODULO = 0x10001, /* 2^16+1 */
wolfSSL 13:f67a6c6013ca 36 IDEA_2EXP16 = 0x10000, /* 2^16 */
wolfSSL 13:f67a6c6013ca 37 IDEA_MASK = 0xFFFF, /* 16 bits set to one */
wolfSSL 13:f67a6c6013ca 38 IDEA_ROUNDS = 8, /* number of rounds for IDEA */
wolfSSL 13:f67a6c6013ca 39 IDEA_SK_NUM = (6*IDEA_ROUNDS + 4), /* number of subkeys */
wolfSSL 13:f67a6c6013ca 40 IDEA_KEY_SIZE = 16, /* size of key in bytes */
wolfSSL 13:f67a6c6013ca 41 IDEA_BLOCK_SIZE = 8, /* size of IDEA blocks in bytes */
wolfSSL 13:f67a6c6013ca 42 IDEA_IV_SIZE = 8, /* size of IDEA IV in bytes */
wolfSSL 13:f67a6c6013ca 43 IDEA_ENCRYPTION = 0,
wolfSSL 13:f67a6c6013ca 44 IDEA_DECRYPTION = 1
wolfSSL 13:f67a6c6013ca 45 };
wolfSSL 13:f67a6c6013ca 46
wolfSSL 13:f67a6c6013ca 47 /* IDEA encryption and decryption */
wolfSSL 13:f67a6c6013ca 48 typedef struct Idea {
wolfSSL 13:f67a6c6013ca 49 word32 reg[IDEA_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
wolfSSL 13:f67a6c6013ca 50 word32 tmp[IDEA_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
wolfSSL 13:f67a6c6013ca 51 word16 skey[IDEA_SK_NUM]; /* 832 bits expanded key */
wolfSSL 13:f67a6c6013ca 52 } Idea;
wolfSSL 13:f67a6c6013ca 53
wolfSSL 13:f67a6c6013ca 54 WOLFSSL_API int wc_IdeaSetKey(Idea *idea, const byte* key, word16 keySz,
wolfSSL 13:f67a6c6013ca 55 const byte *iv, int dir);
wolfSSL 13:f67a6c6013ca 56 WOLFSSL_API int wc_IdeaSetIV(Idea *idea, const byte* iv);
wolfSSL 13:f67a6c6013ca 57 WOLFSSL_API int wc_IdeaCipher(Idea *idea, byte* out, const byte* in);
wolfSSL 13:f67a6c6013ca 58 WOLFSSL_API int wc_IdeaCbcEncrypt(Idea *idea, byte* out,
wolfSSL 13:f67a6c6013ca 59 const byte* in, word32 len);
wolfSSL 13:f67a6c6013ca 60 WOLFSSL_API int wc_IdeaCbcDecrypt(Idea *idea, byte* out,
wolfSSL 13:f67a6c6013ca 61 const byte* in, word32 len);
wolfSSL 13:f67a6c6013ca 62 #ifdef __cplusplus
wolfSSL 13:f67a6c6013ca 63 } /* extern "C" */
wolfSSL 13:f67a6c6013ca 64 #endif
wolfSSL 13:f67a6c6013ca 65
wolfSSL 13:f67a6c6013ca 66 #endif /* HAVE_IDEA */
wolfSSL 13:f67a6c6013ca 67 #endif /* WOLF_CRYPT_IDEA_H */
wolfSSL 13:f67a6c6013ca 68