no homo

Author: wfus

homo/fhe_image.h

@@ -307,6 +307,21 @@ void dct_blocks(std::vector<std::vector<double>> &blocks) {
     for (int a = 0; a < blocks.size(); a++) {
         dct(&blocks[a][0]);
     }
+}
+
+void print_parameters(const SEALContext &context) {
+    std::cout << "/ Encryption parameters:" << std::endl;
+    std::cout << "| poly_modulus: " << context.poly_modulus().to_string() << std::endl;
+
+    /*
+    Print the size of the true (product) coefficient modulus
+    */
+    std::cout << "| coeff_modulus size: " 
+        << context.total_coeff_modulus().significant_bit_count() << " bits" << std::endl;
+
+    std::cout << "| plain_modulus: " << context.plain_modulus().value() << std::endl;
+    std::cout << "\\ noise_standard_deviation: " << context.noise_standard_deviation() << std::endl;
+    std::cout << std::endl;
 } 
 
 #endif

homo/raymond.cpp

@@ -25,7 +25,6 @@ const std::vector<double> S_STD_LUM_QUANT = { 16,11,12,14,12,10,16,14,13,14,18,1
 const std::vector<double> S_STD_CROMA_QUANT = { 17,18,18,24,21,24,47,26,26,47,99,66,56,66,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99 };
 
 void raymond_average();
-void print_parameters(const SEALContext &context);
 
 
 int main()
@@ -170,18 +169,3 @@ void raymond_average() {
 
     return;
 }
-
-void print_parameters(const SEALContext &context) {
-    std::cout << "/ Encryption parameters:" << std::endl;
-    std::cout << "| poly_modulus: " << context.poly_modulus().to_string() << std::endl;
-
-    /*
-    Print the size of the true (product) coefficient modulus
-    */
-    std::cout << "| coeff_modulus size: " 
-        << context.total_coeff_modulus().significant_bit_count() << " bits" << std::endl;
-
-    std::cout << "| plain_modulus: " << context.plain_modulus().value() << std::endl;
-    std::cout << "\\ noise_standard_deviation: " << context.noise_standard_deviation() << std::endl;
-    std::cout << std::endl;
-}

homo/sender.cpp

@@ -19,5 +19,52 @@ int main()
     uint8_t *image_data = stbi_load(test_filename, &width, &height, &actual_composition, requested_composition);
     std::cout << width << " x " << height << std::endl;
     print_image(image_data,  width, height);
+
+
+    // Encryption Parameters
+    EncryptionParameters params;
+    params.set_poly_modulus("1x^32768 + 1");
+    params.set_coeff_modulus(coeff_modulus_128(2048));
+    params.set_plain_modulus(1 << 14);
+    SEALContext context(params);
+    print_parameters(context);
+
+
+    // Generate keys
+    start = std::chrono::steady_clock::now(); 
+    KeyGenerator keygen(context);
+    auto public_key = keygen.public_key();
+    auto secret_key = keygen.secret_key();
+    auto diff = std::chrono::steady_clock::now() - start; 
+    std::cout << "KeyGen: ";
+    std::cout << chrono::duration<double, milli>(diff).count() << " ms" << std::endl;
+    
+    // Encrytor and decryptor setup
+    Encryptor encryptor(context, public_key);
+    Evaluator evaluator(context);
+    Decryptor decryptor(context, secret_key);
+
+    // Base + Number of coefficients used for encoding past the decimal point (both pos and neg)
+    // Example: if poly_base = 11, and N_FRACTIONAL_COEFFS=3, then we will have 
+    // a1 * 11^-1 + a2 * 11^-2 + a3 * 11^-3
+    const int POLY_BASE = 11;
+    const int N_FRACTIONAL_COEFFS = 3;  
+    const int N_NUMBER_COEFFS = 10;
+
+    FractionalEncoder encoder(context.plain_modulus(), context.poly_modulus(), N_NUMBER_COEFFS, N_FRACTIONAL_COEFFS, POLY_BASE);
+    
+    std::ofstream myfile;
+    myfile.open("../image/nothingpersonnel.txt");
+    start = std::chrono::steady_clock::now(); 
+    for (int i = 0; i < width * height; i++) {
+        Ciphertext c;
+        double conv = (double)(image_data[i]);
+        std::cout<< conv <<std::endl;
+        encryptor.encrypt(encoder.encode(conv), c);
+        c.save(myfile);
+    }
+
+
+    myfile.close();
     return 0;
 }