53 lines
2.1 KiB
C++
53 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018-2019, SLikeSoft UG (haftungsbeschränkt)
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*
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* This source code is licensed under the MIT-style license found in the license.txt
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* file in the root directory of this source tree.
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*/
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#pragma once
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#include "ifileencrypter.h" // used for Crypto::IFileEncrypter
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#include "securestring.h" // used for Crypto::CSecureString
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#include <openssl/ossl_typ.h> // used for RSA
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namespace SLNet
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{
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namespace Experimental
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{
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namespace Crypto
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{
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class CFileEncrypter : public IFileEncrypter
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{
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// member variables
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RSA *m_privateKey;
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EVP_PKEY *m_privatePKey;
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RSA *m_publicKey;
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EVP_PKEY *m_publicPKey;
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unsigned char m_sigBuffer[1024];
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char m_sigBufferBase64[1369]; // 1369 = 1368 (size of base64-encoded 1k signature which is 1024 / 3 * 4 (representing 1023 bytes) + 4 bytes for the last byte) + 1 byte for trailing \0-terminator
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// constructor
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public:
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// #high - drop the default ctor again (provide load from file instead incl. routing through customized file open handlers)
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CFileEncrypter();
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CFileEncrypter(const char *publicKey, size_t publicKeyLength);
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CFileEncrypter(const char *publicKey, size_t publicKeyLength, const char *privateKey, size_t privateKeyLength, CSecureString &password);
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~CFileEncrypter();
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// signing methods
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public:
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const unsigned char* SignData(const unsigned char *data, const size_t dataLength) override;
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const char* SignDataBase64(const unsigned char *data, const size_t dataLength) override;
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// #med reconsider/review interface here (char / unsigned char)
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bool VerifyData(const unsigned char *data, const size_t dataLength, const unsigned char *signature, const size_t signatureLength) override;
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bool VerifyDataBase64(const unsigned char *data, const size_t dataLength, const char *signature, const size_t signatureLength) override;
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// internal helpers
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private:
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static int PasswordCallback(char *buffer, int bufferSize, int, void *password);
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const char* SetPrivateKey(const char *privateKey, size_t privateKeyLength, CSecureString &password);
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const char* SetPublicKey(const char *publicKey, size_t publicKeyLength);
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};
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}
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}
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} |