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Diff: include/mbedtls/arc4.h
- Revision:
- 0:cdf462088d13
diff -r 000000000000 -r cdf462088d13 include/mbedtls/arc4.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/include/mbedtls/arc4.h Thu Jan 05 00:18:44 2017 +0000 @@ -0,0 +1,113 @@ +/** + * \file arc4.h + * + * \brief The ARCFOUR stream cipher + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ +#ifndef MBEDTLS_ARC4_H +#define MBEDTLS_ARC4_H + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#include <stddef.h> + +#if !defined(MBEDTLS_ARC4_ALT) +// Regular implementation +// + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief ARC4 context structure + */ +typedef struct +{ + int x; /*!< permutation index */ + int y; /*!< permutation index */ + unsigned char m[256]; /*!< permutation table */ +} +mbedtls_arc4_context; + +/** + * \brief Initialize ARC4 context + * + * \param ctx ARC4 context to be initialized + */ +void mbedtls_arc4_init( mbedtls_arc4_context *ctx ); + +/** + * \brief Clear ARC4 context + * + * \param ctx ARC4 context to be cleared + */ +void mbedtls_arc4_free( mbedtls_arc4_context *ctx ); + +/** + * \brief ARC4 key schedule + * + * \param ctx ARC4 context to be setup + * \param key the secret key + * \param keylen length of the key, in bytes + */ +void mbedtls_arc4_setup( mbedtls_arc4_context *ctx, const unsigned char *key, + unsigned int keylen ); + +/** + * \brief ARC4 cipher function + * + * \param ctx ARC4 context + * \param length length of the input data + * \param input buffer holding the input data + * \param output buffer for the output data + * + * \return 0 if successful + */ +int mbedtls_arc4_crypt( mbedtls_arc4_context *ctx, size_t length, const unsigned char *input, + unsigned char *output ); + +#ifdef __cplusplus +} +#endif + +#else /* MBEDTLS_ARC4_ALT */ +#include "arc4_alt.h" +#endif /* MBEDTLS_ARC4_ALT */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + */ +int mbedtls_arc4_self_test( int verbose ); + +#ifdef __cplusplus +} +#endif + +#endif /* arc4.h */