/*
* (C) 2014,2015,2020 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "tests.h"

#if defined(BOTAN_HAS_ELGAMAL)
   #include <botan/elgamal.h>
   #include "test_pubkey.h"
#endif

namespace Botan_Tests {

namespace {

#if defined(BOTAN_HAS_ELGAMAL)

class ElGamal_Encrypt_Tests final : public PK_Encryption_Decryption_Test
   {
   public:
      ElGamal_Encrypt_Tests()
         : PK_Encryption_Decryption_Test(
              "ElGamal",
              "pubkey/elgamal_encrypt.vec",
              "Group,Secret,Nonce,Msg,Ciphertext", "Padding") {}

      std::unique_ptr<Botan::Private_Key> load_private_key(const VarMap& vars) override
         {
         const Botan::BigInt x = vars.get_req_bn("Secret");
         const Botan::DL_Group grp(vars.get_req_str("Group"));

         return std::make_unique<Botan::ElGamal_PrivateKey>(Test::rng(), grp, x);
         }
   };

class ElGamal_Decrypt_Tests final : public PK_Decryption_Test
   {
   public:
      ElGamal_Decrypt_Tests()
         : PK_Decryption_Test(
              "ElGamal",
              "pubkey/elgamal_decrypt.vec",
              "P,G,X,Msg,Ciphertext") {}

      std::unique_ptr<Botan::Private_Key> load_private_key(const VarMap& vars) override
         {
         const Botan::BigInt p = vars.get_req_bn("P");
         const Botan::BigInt g = vars.get_req_bn("G");
         const Botan::BigInt x = vars.get_req_bn("X");

         const Botan::DL_Group grp(p, g);

         return std::make_unique<Botan::ElGamal_PrivateKey>(Test::rng(), grp, x);
         }
   };

class ElGamal_Keygen_Tests final : public PK_Key_Generation_Test
   {
   public:
      std::vector<std::string> keygen_params() const override
         {
         return { "modp/ietf/1024" };
         }
      std::string algo_name() const override
         {
         return "ElGamal";
         }
   };

BOTAN_REGISTER_TEST("pubkey", "elgamal_encrypt", ElGamal_Encrypt_Tests);
BOTAN_REGISTER_TEST("pubkey", "elgamal_decrypt", ElGamal_Decrypt_Tests);
BOTAN_REGISTER_TEST("pubkey", "elgamal_keygen", ElGamal_Keygen_Tests);

#endif

}

}