wolf SSL / wolfSSL

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

Dependents:   CyaSSL-Twitter-OAuth4Tw Example-client-tls-cert TwitterReader TweetTest ... more

wolfssl/wolfcrypt/chacha.h@0:d92f9d21154c, 2015-06-26 (annotated)

Committer:
wolfSSL
Date:
Fri Jun 26 00:39:20 2015 +0000
Revision:
0:d92f9d21154c
wolfSSL 3.6.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 0:d92f9d21154c 1 /* chacha.h
wolfSSL 0:d92f9d21154c 2 *
wolfSSL 0:d92f9d21154c 3 * Copyright (C) 2006-2015 wolfSSL Inc.
wolfSSL 0:d92f9d21154c 4 *
wolfSSL 0:d92f9d21154c 5 * This file is part of wolfSSL. (formerly known as CyaSSL)
wolfSSL 0:d92f9d21154c 6 *
wolfSSL 0:d92f9d21154c 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 0:d92f9d21154c 8 * it under the terms of the GNU General Public License as published by
wolfSSL 0:d92f9d21154c 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 0:d92f9d21154c 10 * (at your option) any later version.
wolfSSL 0:d92f9d21154c 11 *
wolfSSL 0:d92f9d21154c 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 0:d92f9d21154c 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 0:d92f9d21154c 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 0:d92f9d21154c 15 * GNU General Public License for more details.
wolfSSL 0:d92f9d21154c 16 *
wolfSSL 0:d92f9d21154c 17 * You should have received a copy of the GNU General Public License
wolfSSL 0:d92f9d21154c 18 * along with this program; if not, write to the Free Software
wolfSSL 0:d92f9d21154c 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
wolfSSL 0:d92f9d21154c 20 */
wolfSSL 0:d92f9d21154c 21
wolfSSL 0:d92f9d21154c 22 #ifndef WOLF_CRYPT_CHACHA_H
wolfSSL 0:d92f9d21154c 23 #define WOLF_CRYPT_CHACHA_H
wolfSSL 0:d92f9d21154c 24
wolfSSL 0:d92f9d21154c 25 #include <wolfssl/wolfcrypt/types.h>
wolfSSL 0:d92f9d21154c 26
wolfSSL 0:d92f9d21154c 27 #ifdef HAVE_CHACHA
wolfSSL 0:d92f9d21154c 28
wolfSSL 0:d92f9d21154c 29 #ifdef __cplusplus
wolfSSL 0:d92f9d21154c 30 extern "C" {
wolfSSL 0:d92f9d21154c 31 #endif
wolfSSL 0:d92f9d21154c 32
wolfSSL 0:d92f9d21154c 33 enum {
wolfSSL 0:d92f9d21154c 34 CHACHA_ENC_TYPE = 7 /* cipher unique type */
wolfSSL 0:d92f9d21154c 35 };
wolfSSL 0:d92f9d21154c 36
wolfSSL 0:d92f9d21154c 37 typedef struct ChaCha {
wolfSSL 0:d92f9d21154c 38 word32 X[16]; /* state of cipher */
wolfSSL 0:d92f9d21154c 39 } ChaCha;
wolfSSL 0:d92f9d21154c 40
wolfSSL 0:d92f9d21154c 41 /**
wolfSSL 0:d92f9d21154c 42 * IV(nonce) changes with each record
wolfSSL 0:d92f9d21154c 43 * counter is for what value the block counter should start ... usually 0
wolfSSL 0:d92f9d21154c 44 */
wolfSSL 0:d92f9d21154c 45 WOLFSSL_API int wc_Chacha_SetIV(ChaCha* ctx, const byte* inIv, word32 counter);
wolfSSL 0:d92f9d21154c 46
wolfSSL 0:d92f9d21154c 47 WOLFSSL_API int wc_Chacha_Process(ChaCha* ctx, byte* cipher, const byte* plain,
wolfSSL 0:d92f9d21154c 48 word32 msglen);
wolfSSL 0:d92f9d21154c 49 WOLFSSL_API int wc_Chacha_SetKey(ChaCha* ctx, const byte* key, word32 keySz);
wolfSSL 0:d92f9d21154c 50
wolfSSL 0:d92f9d21154c 51 #ifdef __cplusplus
wolfSSL 0:d92f9d21154c 52 } /* extern "C" */
wolfSSL 0:d92f9d21154c 53 #endif
wolfSSL 0:d92f9d21154c 54
wolfSSL 0:d92f9d21154c 55 #endif /* HAVE_CHACHA */
wolfSSL 0:d92f9d21154c 56 #endif /* WOLF_CRYPT_CHACHA_H */
wolfSSL 0:d92f9d21154c 57
wolfSSL 0:d92f9d21154c 58