test_rfc6979.cpp - mozsearch

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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_RFC6979_GENERATOR)

   #include <botan/hash.h>

   #include <botan/internal/rfc6979.h>

#endif

namespace Botan_Tests {

namespace {

#if defined(BOTAN_HAS_RFC6979_GENERATOR)

class RFC6979_KAT_Tests final : public Text_Based_Test {

   public:

      RFC6979_KAT_Tests() : Text_Based_Test("rfc6979.vec", "Q,X,H,K") {}

      Test::Result run_one_test(const std::string& hash, const VarMap& vars) override {

         const BigInt Q = vars.get_req_bn("Q");

         const BigInt X = vars.get_req_bn("X");

         const BigInt H = vars.get_req_bn("H");

         const BigInt K = vars.get_req_bn("K");

         Test::Result result("RFC 6979 nonce generation");

         auto hash_func = Botan::HashFunction::create(hash);

         if(!hash_func) {

            result.test_note("Skipping due to missing: " + hash);

            return result;

         result.test_eq("vector matches", Botan::generate_rfc6979_nonce(X, Q, H, hash), K);

         Botan::RFC6979_Nonce_Generator gen(hash, Q.bits(), X);

         result.test_eq("vector matches", gen.nonce_for(Q, H), K);

         result.test_ne("different output for H+1", gen.nonce_for(Q, H + 1), K);

         result.test_eq("vector matches when run again", gen.nonce_for(Q, H), K);

         return result;

};

BOTAN_REGISTER_TEST("pubkey", "rfc6979", RFC6979_KAT_Tests);

#endif

}  // namespace

}  // namespace Botan_Tests