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jakcron
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/**
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* @file HmacSha512Generator.h
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* @brief Declarations for API resources for HMAC-SHA2-512 calculations.
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* @author Jack (jakcron)
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* @version 0.1
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* @date 2020/06/06
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**/
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#pragma once
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#include <tc/types.h>
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#include <tc/crypto/Sha512Generator.h>
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#include <tc/crypto/HmacGenerator.h>
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namespace tc { namespace crypto {
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/**
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* @typedef HmacSha512Generator
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* @brief Class for calculating HMAC-SHA2-512.
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*
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* @details This class calcualtes MAC using SHA2-512.
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* For more information refer to @ref HmacGenerator.
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*/
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using HmacSha512Generator = HmacGenerator<Sha512Generator>;
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/**
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* @brief Utility function for calculating HMAC-SHA2-512.
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*
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* @param[out] mac Pointer to the buffer storing the MAC.
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* @param[in] data Pointer to input data.
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* @param[in] data_size Size in bytes of input data.
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* @param[in] key Pointer to key data.
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* @param[in] key_size Size in bytes of key data.
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*
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* @pre
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* - Size of the MAC buffer must >= <tt>HmacSha512Generator::kMacSize</tt>.
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*
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* @post
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* - The MAC is written to <tt><var>mac</var></tt>.
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*
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* @details
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* This function calculates a MAC for the passed in data array.
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* To calculate a MAC for data split into multiple arrays, use the @ref HmacSha512Generator class.
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*/
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void GenerateHmacSha512Mac(byte_t* mac, const byte_t* data, size_t data_size, const byte_t* key, size_t key_size);
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}} // namespace tc::crypto
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