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bb.cpp
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bb.cpp
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#include <iostream>
#include <string>
#include <vector>
#include <Eigen/Dense>
// #include "read_data.hpp"
#include "define.hpp"
#include "utils.hpp"
// #include "neural_network.hpp"
using namespace std;
using namespace Eigen;
int N_train; // Number of Training Samples
int N_test; // Number of Testing Samples
int d; // Number of Features: number of input values
int d_1; // Number of neurons in the first layer
int m; // Number of classes in the output layer
int B; // Batch Size
int NUM_EPOCHS; // Number of Epochs
int main()
{
cout << endl << "Select Building Blocks (enter corresponsing digit): " << endl;
cout << endl;
cout << "\t [1] Mapping and Reversing Mapping functionality: " << endl;
cout << "\t [2] Truncation Functionality: " << endl;
cout << "\t [3] Secret Sharing functionality: " << endl;
cout << "\t [4] Secure Matrix Multiplication functionality: " << endl;
cout << "\t [5] Private Compare functionality (Unshared Setting): " << endl;
cout << "\t [6] Private Compare functionality (Shared Setting): " << endl;
int selection = 0;
cout << endl << "Enter selection: ";
cin >> selection;
IOFormat CleanFmt(4, 0, ", ", "\n", "[", "]"); // formatting option while printing Eigen Matrices
cout << fixed;
if (selection == 1) // Mapping and Reverse Mapping functionality
{
MatrixXd X(2,2);
X << 456.00, -0.987654, 5.66897, 0.88768; // Random 2 x 2 Matrix
cout << endl << "Matrix X: " << endl;
cout << endl << X << endl;
MatrixXi64 X_i = FloatToUint64(X); // converting to integer ring
cout << endl << "Matrix X mapped to Z_L: " << endl;
cout << endl << X_i << endl;
MatrixXd X_f = Uint64ToFloat(X_i); // converting back to floats
cout << endl << "Matrix X mapped back to floats: " << endl;
cout << endl << X_f << endl << endl;
}
else if (selection == 2) // Truncation Fucntionality
{
MatrixXd X = MatrixXd::Random(2,2); // Random Matrix X
cout << endl << "Matrix X: " << endl;
cout << endl << X << endl;
MatrixXd Y = MatrixXd::Random(2,2); // Random Matrix Y
cout << endl << "Matrix Y: " << endl;
cout << endl << Y << endl;
MatrixXd Z = X * Y; // computing Z in floats itself
cout << endl << "Matrix Z (floating point multiplication): " << endl;
cout << endl << Z << endl;
MatrixXi64 X_i = FloatToUint64(X); // converting X to integer ring
// cout << endl << "Matrix X mapped " << endl;
// cout << endl << X_i << endl;
MatrixXi64 Y_i = FloatToUint64(Y); // converting Y to integer ring
// cout << endl << "Matrix X mapped " << endl;
// cout << endl << Y_i << endl;
MatrixXi64 Z_i = X_i * Y_i; // computing Z in ring
// cout << endl << "Matrix Z (X_i * Y_i) " << endl;
// cout << endl << Z_i << endl;
MatrixXi64 Z_t = Truncate(Z_i, SCALING_FACTOR); // truncating Z after multiplication
cout << endl << "Truncated Matrix Z (X,Y mapped, multiplied and then truncated) " << endl;
cout << endl << Z_t << endl;
MatrixXd Z_f = Uint64ToFloat(Z_t); // converting Z back to floats
cout << endl << "Matrix Z mapped back to floats" << endl;
cout << endl << Z_f << endl << endl;
}
else if (selection == 3) // Secret Sharing functionality
{
MatrixXd X = MatrixXd::Random(2,2); // Random Matrix X
cout << endl << "Matrix X: " << endl;
cout << endl << X << endl;
MatrixXi64 X_i = FloatToUint64(X); // converting X to integer ring
MatrixXi64 shares[2];
Share(X_i,shares); // creating shares of X
MatrixXi64 X_i0 = shares[0]; // zeroth share of X
cout << endl << "Matrix X_0: " << endl;
cout << endl << X_i0 << endl;
MatrixXi64 X_i1 = shares[1]; // first share of X
cout << endl << "Matrix X_1: " << endl;
cout << endl << X_i1 << endl;
MatrixXi64 X_r = Rec(X_i0, X_i1); // reconstructiong the shares
MatrixXd X_f = Uint64ToFloat(X_r); // converting back to floats
cout << endl << "Matrix X_f: " << endl;
cout << endl << X_f << endl;
}
else if (selection == 4) // Secure Matrix Multiplication Functionality
{
MatrixXd X = MatrixXd::Random(3,3); // Random Matrix X
cout << endl << "X: " << endl;
cout << X << endl;
MatrixXd Y = MatrixXd::Random(3,3); // Random Matrix Y
cout << endl << "Y: " << endl;
cout << Y << endl;
MatrixXd Z = X * Y;
cout << endl << "Z (floating point muliplication): " << endl;
cout << Z << endl;
MatrixXi64 X_i = FloatToUint64(X); // converting matrix X to integer
// cout << endl << "Matrix X mapped : " << endl;
// cout << X_i << endl;
MatrixXi64 Y_i = FloatToUint64(Y); // converting matrix Y to integer
// cout << endl << "Matrix Y mapped : " << endl;
// cout << Y_i << endl;
// MatrixXi64 Z_i = X_i * Y_i;
// MatrixXi64 Z_i_t = Truncate(Z_i, SCALING_FACTOR);
// cout << endl << "Matrix Z (X * Y and then truncated): " << endl;
// cout << Z_i_t << endl;
cout << endl << "==== Creating shares of X and Y ====" << endl;
// Creating shares of matrix X
MatrixXi64 sharesX[2];
Share(X_i, sharesX);
MatrixXi64 X_i0 = sharesX[0]; // 0th share of X
// cout << endl << "Matrix X (0th share) : " << endl;
// cout << X_i0 << endl;
MatrixXi64 X_i1 = sharesX[1]; // 1st share of X
// cout << endl << "Matrix X (1st share) : " << endl;
// cout << X_i1 << endl;
// Creating shares of matrix Y
MatrixXi64 sharesY[2];
Share(Y_i, sharesY);
MatrixXi64 Y_i0 = sharesY[0]; // 0th share of Y
// cout << endl << "Matrix Y (0th share) : " << endl;
// cout << Y_i0 << endl;
MatrixXi64 Y_i1 = sharesY[1]; // 1st share of Y
// cout << endl << "Matrix Y (1st share) : " << endl;
// cout << Y_i1 << endl;
cout << endl << "==== Triplet Generation (C = A * B) ====" << endl;
MatrixXi64 triplet_shares[6];
TripletGeneration(X.rows(), X.cols(), Y.rows(), Y.cols(), triplet_shares);
MatrixXi64 A_0, A_1, B_0, B_1, C_0, C_1;
A_0 = triplet_shares[0];
A_1 = triplet_shares[1];
B_0 = triplet_shares[2];
B_1 = triplet_shares[3];
C_0 = triplet_shares[4];
C_1 = triplet_shares[5];
// cout << endl << "A_0: " <<endl;
// cout << A_0 << endl;
cout << endl << "==== Secure Mat Mult (Z = X * Y)====" << endl;
// masking shares of X
MatrixXi64 E_0 = X_i0 - A_0;
MatrixXi64 E_1 = X_i1 - A_1;
MatrixXi64 E = Rec(E_0, E_1); // masked X
// masking shares of Y
MatrixXi64 F_0 = Y_i0 - B_0;
MatrixXi64 F_1 = Y_i1 - B_1;
MatrixXi64 F = Rec(F_0, F_1); // masked Y
// performing secure matrix multiplication for both party 0 and party 1
MatrixXi64 Z_smult0 = MatMult(0, X_i0, Y_i0, E, F, C_0); // computing 0th share of Z = X * Y
MatrixXi64 Z_smult0_t = Truncate(Z_smult0, SCALING_FACTOR); // truncating Z_0 after mulitplication
MatrixXi64 Z_smult1 = MatMult(1, X_i1, Y_i1, E, F, C_1); // computing 1st share of Z = X * Y
MatrixXi64 Z_smult1_t = Truncate(Z_smult1, SCALING_FACTOR); // truncating Z_1 after mulitplication
MatrixXi64 Z_smult_t = Rec(Z_smult0_t, Z_smult1_t); // reconstructing Z
// cout << endl << "Z_smult_i : " << endl;
// cout << Z_smult_t << endl;
MatrixXd Z_f = Uint64ToFloat(Z_smult_t);
cout << endl << "Z_f: " << endl;
cout << Z_f << endl;
}
else if (selection == 5) // Private Compare Functionality (Unshared Setting)
{
cout << endl << "==== Private Compare Functionality (Unshared setting) ====" << endl;
uint64_t x, r;
cout << endl << "Enter a number (x): ";
cin >> x;
cout << "Enter another number (r): ";
cin >> r;
// uint64_t x_i = FloatToUint64(x);
// uint64_t r_i = FloatToUint64(r);
// cout << endl << "== After being mapped to Z_L ring ==" << endl;
cout << endl << "x: " << x << endl;
cout << "r: " << r << endl;
cout << endl << "== Comparison (x > r) ==" << endl;
// string x_s = bitset<64>(x_i).to_string(); // getting the binary representation string
// cout << "x : " << x_s << endl;
// string r_s = bitset<64>(r_i).to_string(); // getting the binary representation string
// cout << "r : " << r_s << endl;
int res = unsharedPrivateCompare(x, r);
if (res == 0)
{
cout << endl << "x > r: False" << endl;
}
else if (res == 1)
{
cout << endl << "x > r: True" << endl;
}
// // difference comparison (experimentation)
// cout << endl << "== Comparison by difference (x - r > 2^63) ==" << endl;
// int res1 = PrivateCompareDiff(x_i, r_i);
// if (res1==0)
// {
// cout << endl << "x > r: True" << endl;
// }
// else if (res1==1)
// {
// cout << endl << "x > r: False" << endl;
// }
}
else if (selection == 6) // Private Compare Functionality (Shared Setting)
{
cout << endl << "==== Private Compare Functionality (Shared Setting) ====" << endl;
uint64_t x, r;
cout << endl << "Enter a integer number (x): ";
cin >> x;
cout << "Enter another integer number (r): ";
cin >> r;
// cout << endl << "== After being mapped to Z_L ring ==" << endl;
// uint64_t x_i = FloatToUint64(x);
// uint64_t r_i = FloatToUint64(r);
cout << endl << "x: " << x << endl;
cout << "r: " << r << endl;
cout << endl << "== Comparison (x > r) ==" << endl;
int res = PrivateCompare(x,r);
if (res==0)
{
cout << endl << "x > r: False" << endl;
}
else if (res==1)
{
cout << endl << "x > r: True" << endl;
}
}
else if (selection==7) // Random Testing code
{
uint64_t t1 = (1LL << 63) + 10;
uint64_t t2 = (uint64_t) pow(2,64) - 19;
cout << endl << "t1: " << t1 << endl;
cout << endl << "t2: " << t2 << endl;
uint64_t diff = t1 - t2;
cout << endl << "diff: " << diff << endl;
uint64_t b = 1LL << 63;
if (diff>b ){
cout << "True" << endl;
}
else
{
cout << "False" << endl;
}
}
else
{
cout << endl << "Invalid Input" << endl;
}
return 0;
}