49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
/*##############################################################################
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## Author: Shaun Reed ##
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## Legal: All Content (c) 2021 Shaun Reed, all rights reserved ##
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## About: An example of using columnar transposition cipher ##
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## + Using concept at www.braingle.com/brainteasers/codes/columnartrans.php ##
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## ##
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## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
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################################################################################
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*/
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#ifndef COLUMNARTRANSPOSITION_LIB_CIPHER_HPP
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#define COLUMNARTRANSPOSITION_LIB_CIPHER_HPP
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#include <iostream>
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#include<algorithm>
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#include<vector>
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/******************************************************************************/
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// CipherData struct to hold data and methods related to encrypting / decrypting
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struct CipherData {
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// Can't create this object without providing a keyWord to initialize order
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explicit CipherData(std::string keyWord) : keyWord_(std::move(keyWord))
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{
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InitOrder(keyWord_);
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}
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CipherData() : keyWord_(GetKey()) { InitOrder(keyWord_);}
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/****************************************************************************/
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// Member functions
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// Initializes orderVect, pass by value to create local copy of keyWord
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void InitOrder(std::string temp);
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static std::string GetKey();
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static void
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Transpose(const std::vector<std::string> &in, std::vector<std::string> &out);
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// Default values for param allows calling with no message
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std::string Encrypt(std::string message="");
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std::string Decrypt(std::string message="");
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private:
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std::string keyWord_;
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std::vector<int> orderVect_;
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};
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#endif // COLUMNARTRANSPOSITION_LIB_CIPHER_HPP
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