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https://github.com/DarkStore-3DS/Project_CTR.git
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jakcron
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/**
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* @file RsaKey.h
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* @brief Declarations for structures to store RSA keys.
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* @author Jack (jakcron)
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* @version 0.1
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* @date 2020/08/27
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**/
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#pragma once
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#include <tc/types.h>
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#include <tc/ByteData.h>
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namespace tc { namespace crypto {
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/**
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* @struct RsaKey
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* @brief Struct for storing a RSA key. For use with RSA calculations.
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*/
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struct RsaKey
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{
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tc::ByteData n; /**< Modulus */
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tc::ByteData d; /**< Private exponent */
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tc::ByteData e; /**< Public exponent */
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};
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/**
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* @struct RsaPublicKey
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* @brief This extends RsaKey, exposing a constructor to create a RSA public key from a modulus.
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*/
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struct RsaPublicKey : public RsaKey
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{
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/**
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* @brief This constructs a @ref RsaKey from a modulus.
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*
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* @param[in] modulus Buffer containing big-endian modulus.
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* @param[in] modulus_size Size in bytes of modulus.
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*
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* @pre @p modulus != nullptr
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* @pre @p modulus_size != 0
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*
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* @details Supplying a public exponent is not required, as this is the same for all RSA keys and is initialized internally by this constructor.
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*/
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RsaPublicKey(const byte_t* modulus, size_t modulus_size);
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};
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/**
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* @struct RsaPrivateKey
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* @brief This extends RsaKey, exposing a constructor to create a RSA private key from a modulus and private exponent.
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*/
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struct RsaPrivateKey : public RsaKey
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{
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/**
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* @brief This constructs a @ref RsaKey from a modulus and private exponent.
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*
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* @param[in] modulus Buffer containing big-endian modulus.
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* @param[in] modulus_size Size in bytes of modulus.
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* @param[in] private_exponent Buffer containing big-endian private exponent.
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* @param[in] private_exponent_size Size in bytes of private exponent.
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*
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* @pre @p modulus != nullptr
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* @pre @p modulus_size != 0
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* @pre @p private_exponent != nullptr
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* @pre @p private_exponent_size != 0
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*/
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RsaPrivateKey(const byte_t* modulus, size_t modulus_size, const byte_t* private_exponent, size_t private_exponent_size);
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/**
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* @brief Generate public key from this private key.
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*
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* @return RsaKey containing the public key.
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*/
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RsaKey getPublicKey();
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};
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}} // namespace tc::crypto
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