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

#include "tests.h"

#if defined(BOTAN_HAS_ED25519)
   #include "test_pubkey.h"
   #include <botan/ed25519.h>
   #include <botan/pkcs8.h>
   #include <botan/data_src.h>
#endif

namespace Botan_Tests {

namespace {

#if defined(BOTAN_HAS_ED25519)

class Ed25519_Signature_Tests : public PK_Signature_Generation_Test
   {
   public:
      Ed25519_Signature_Tests() : PK_Signature_Generation_Test(
            "Ed25519",
            "pubkey/ed25519.vec",
            "Privkey,Pubkey,Hash,Msg,Signature") {}

      std::unique_ptr<Botan::Private_Key> load_private_key(const VarMap& vars) override
         {
         const std::vector<uint8_t> privkey = get_req_bin(vars, "Privkey");
         const std::vector<uint8_t> pubkey = get_req_bin(vars, "Pubkey");

         Botan::secure_vector<uint8_t> seed(privkey.begin(), privkey.end());

         std::unique_ptr<Botan::Ed25519_PrivateKey> key(new Botan::Ed25519_PrivateKey(seed));

         if(key->get_public_key() != pubkey)
            throw Test_Error("Invalid Ed25519 key in test data");

         return std::unique_ptr<Botan::Private_Key>(key.release());
         }

      std::string default_padding(const VarMap& vars) const override
         {
         return get_opt_str(vars, "Hash", "Pure");
         }
   };

class Ed25519_Curdle_Format_Tests : public Test
   {
   public:
      std::vector<Test::Result> run() override
         {
         // Keys from draft-ietf-curdle-pkix-04.txt
         const std::string priv_key_str =
            "-----BEGIN PRIVATE KEY-----\n"
            "MC4CAQAwBQYDK2VwBCIEINTuctv5E1hK1bbY8fdp+K06/nwoy/HU++CXqI9EdVhC\n"
            "-----END PRIVATE KEY-----\n";

         const std::string pub_key_str =
            "-----BEGIN PUBLIC KEY-----\n"
            "MCowBQYDK2VwAyEAGb9ECWmEzf6FQbrBZ9w7lshQhqowtrbLDFw4rXAxZuE=\n"
            "-----END PUBLIC KEY-----\n";

         Test::Result result("Ed25519 CURDLE format");

         Botan::DataSource_Memory priv_data(priv_key_str);
         std::unique_ptr<Botan::Private_Key> priv_key(Botan::PKCS8::load_key(priv_data, Test::rng()));
         result.confirm("Private key loaded", priv_key != nullptr);

         Botan::DataSource_Memory pub_data(pub_key_str);
         std::unique_ptr<Botan::Public_Key> pub_key(Botan::X509::load_key(pub_data));
         result.confirm("Public key loaded", pub_key != nullptr);

         Botan::PK_Signer signer(*priv_key, Test::rng(), "Pure");
         signer.update("message");
         std::vector<uint8_t> sig = signer.signature(Test::rng());

         Botan::PK_Verifier verifier(*pub_key, "Pure");
         verifier.update("message");
         result.confirm("Signature valid", verifier.check_signature(sig));

         return std::vector<Test::Result>{result};
         }
   };

BOTAN_REGISTER_TEST("ed25519_sign", Ed25519_Signature_Tests);
BOTAN_REGISTER_TEST("ed25519_curdle", Ed25519_Curdle_Format_Tests);

#endif

}

}