Program Listing for File stringencoding.h
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//==================================================================================
// BSD 2-Clause License
//
// Copyright (c) 2014-2022, NJIT, Duality Technologies Inc. and other contributors
//
// All rights reserved.
//
// Author TPOC: contact@openfhe.org
//
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// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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//==================================================================================
/*
Represents and defines string-encoded plaintext objects in OpenFHE
*/
#ifndef SRC_CORE_LIB_ENCODING_STRINGENCODING_H_
#define SRC_CORE_LIB_ENCODING_STRINGENCODING_H_
#include <memory>
#include <string>
#include "encoding/plaintext.h"
namespace lbcrypto {
class StringEncoding : public PlaintextImpl {
std::string ptx;
// enum EncodingType { CHAR7bit } encoding = CHAR7bit;
public:
// these three constructors are used inside of Decrypt
template <typename T, typename std::enable_if<std::is_same<T, Poly::Params>::value ||
std::is_same<T, NativePoly::Params>::value ||
std::is_same<T, DCRTPoly::Params>::value,
bool>::type = true>
StringEncoding(std::shared_ptr<T> vp, EncodingParams ep) : PlaintextImpl(vp, ep) {}
template <typename T, typename std::enable_if<std::is_same<T, Poly::Params>::value ||
std::is_same<T, NativePoly::Params>::value ||
std::is_same<T, DCRTPoly::Params>::value,
bool>::type = true>
StringEncoding(std::shared_ptr<T> vp, EncodingParams ep, const std::string& str)
: PlaintextImpl(vp, ep), ptx(str) {}
// TODO provide wide-character version (for unicode); right now this class
// only supports strings of 7-bit ASCII characters
virtual ~StringEncoding() {}
const std::string& GetStringValue() const {
return ptx;
}
void SetStringValue(const std::string& value) {
ptx = value;
}
bool Encode();
bool Decode();
PlaintextEncodings GetEncodingType() const {
return STRING_ENCODING;
}
size_t GetLength() const {
return ptx.size();
}
bool CompareTo(const PlaintextImpl& other) const {
const auto& oth = static_cast<const StringEncoding&>(other);
return oth.ptx == this->ptx;
}
void PrintValue(std::ostream& out) const {
out << ptx;
}
};
} /* namespace lbcrypto */
#endif /* SRC_CORE_LIB_ENCODING_STRINGENCODING_H_ */