Exemple #1
0
      void ocb_encrypt(Test::Result& result,
                       std::vector<uint8_t>& output_to,
                       Botan::OCB_Encryption& enc,
                       Botan::OCB_Decryption& dec,
                       const std::vector<uint8_t>& nonce,
                       const std::vector<uint8_t>& pt,
                       const std::vector<uint8_t>& ad)
         {
         enc.set_associated_data(ad.data(), ad.size());

         enc.start(nonce.data(), nonce.size());

         Botan::secure_vector<uint8_t> buf(pt.begin(), pt.end());
         enc.finish(buf, 0);
         output_to.insert(output_to.end(), buf.begin(), buf.end());

         try
            {
            dec.set_associated_data(ad.data(), ad.size());

            dec.start(nonce.data(), nonce.size());

            dec.finish(buf, 0);

            result.test_eq("OCB round tripped", buf, pt);
            }
         catch(std::exception& e)
            {
            result.test_failure("OCB round trip error", e.what());
            }

         }
Exemple #2
0
void check_invalid_signatures(Test::Result& result,
                              Botan::PK_Verifier& verifier,
                              const std::vector<uint8_t>& message,
                              const std::vector<uint8_t>& signature)
   {
   const size_t tests_to_run = (Test::run_long_tests() ? 20 : 5);

   const std::vector<uint8_t> zero_sig(signature.size());
   result.test_eq("all zero signature invalid", verifier.verify_message(message, zero_sig), false);

   for(size_t i = 0; i < tests_to_run; ++i)
      {
      const std::vector<uint8_t> bad_sig = Test::mutate_vec(signature);

      try
         {
         if(!result.test_eq("incorrect signature invalid",
                            verifier.verify_message(message, bad_sig), false))
            {
            result.test_note("Accepted invalid signature " + Botan::hex_encode(bad_sig));
            }
         }
      catch(std::exception& e)
         {
         result.test_note("Accepted invalid signature " + Botan::hex_encode(bad_sig));
         result.test_failure("Modified signature rejected with exception", e.what());
         }
      }
   }