encrypt emthod added

src/Encryptor.cpp

@@ -0,0 +1,43 @@
+/**
+ * /mnt/z/my_git/RCRS-CSD-327/src/Encryptor.cpp
+ * @file Encryptor.cpp
+ * @author Avinal Kumar
+ * @since March 06, 2021
+ *
+ * Encryptor class implementation
+ */
+
+#include "Encryptor.h"
+
+namespace krypto {
+uint64_t Encryptor::blowfish_encrypt(std::vector<char> &input_buf,
+                                     std::string const &key, uint64_t in_size) {
+  uint32_t L = 0, R = 0;
+  int block_size = sizeof(uint32_t);
+  Blowfish blowfish(key);
+
+  for (size_t i = 0; i < in_size; i += (block_size * 2)) {
+    L = str_to_uint32(
+        std::string(input_buf.data() + i, input_buf.data() + i + block_size),
+        block_size);
+    R = str_to_uint32(std::string(input_buf.data() + i + block_size,
+                                  input_buf.data() + i + 2 * block_size),
+                      block_size);
+    blowfish.encrypt(L, R);
+    std::string block = uint32_to_str(L, block_size);
+    block += uint32_to_str(R, block_size);
+    int j = i;
+    std::for_each(block.begin(), block.end(), [&](char b) {
+      input_buf[j] = b;
+      j++;
+    });
+  }
+
+  return input_buf.size();
+}
+
+uint64_t Encryptor::blowfish_decrypt(std::vector<char> const &input_buf,
+                            std::string const &key, uint64_t in_size){
+                              
+                            }
+} // namespace krypto