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75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
/*
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* ReplicatedMC.cpp
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*
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*/
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#ifndef PROTOCOLS_REPLICATEDMC_HPP_
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#define PROTOCOLS_REPLICATEDMC_HPP_
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#include "ReplicatedMC.h"
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template<class T>
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void ReplicatedMC<T>::POpen(vector<typename T::open_type>& values,
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const vector<T>& S, const Player& P)
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{
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prepare(S);
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P.pass_around(to_send, o, -1);
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finalize(values, S);
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}
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template<class T>
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void ReplicatedMC<T>::POpen_Begin(vector<typename T::open_type>&,
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const vector<T>& S, const Player& P)
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{
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prepare(S);
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P.send_relative(-1, to_send);
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}
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template<class T>
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void ReplicatedMC<T>::prepare(const vector<T>& S)
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{
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assert(T::vector_length == 2);
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o.reset_write_head();
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to_send.reset_write_head();
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to_send.reserve(S.size() * T::value_type::size());
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for (auto& x : S)
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x[0].pack(to_send);
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}
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template<class T>
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void ReplicatedMC<T>::exchange(const Player& P)
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{
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prepare(this->secrets);
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P.pass_around(to_send, o, -1);
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}
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template<class T>
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void ReplicatedMC<T>::POpen_End(vector<typename T::open_type>& values,
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const vector<T>& S, const Player& P)
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{
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P.receive_relative(1, o);
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finalize(values, S);
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}
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template<class T>
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void ReplicatedMC<T>::finalize(vector<typename T::open_type>& values,
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const vector<T>& S)
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{
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values.resize(S.size());
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for (size_t i = 0; i < S.size(); i++)
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{
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typename T::open_type tmp;
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tmp.unpack(o);
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values[i] = S[i].sum() + tmp;
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}
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}
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template<class T>
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typename T::open_type ReplicatedMC<T>::finalize_raw()
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{
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auto a = this->secrets.next().sum();
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return a + o.get<typename T::open_type>();
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}
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#endif
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