test_kdf.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_KDF_BASE)

   #include <botan/kdf.h>

#endif

#if defined(BOTAN_HAS_HKDF)

   #include <botan/hash.h>

   #include <botan/internal/hkdf.h>

#endif

namespace Botan_Tests {

namespace {

#if defined(BOTAN_HAS_KDF_BASE)

class KDF_KAT_Tests final : public Text_Based_Test {

   public:

      KDF_KAT_Tests() : Text_Based_Test("kdf", "Secret,Output", "Salt,Label,IKM,XTS") {}

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

         Test::Result result(kdf_name);

         auto kdf = Botan::KDF::create(kdf_name);

         if(!kdf) {

            result.note_missing(kdf_name);

            return result;

         const std::vector<uint8_t> salt = vars.get_opt_bin("Salt");

         const std::vector<uint8_t> secret = vars.get_req_bin("Secret");

         const std::vector<uint8_t> label = vars.get_opt_bin("Label");

         const std::vector<uint8_t> expected = vars.get_req_bin("Output");

         result.test_eq("name", kdf->name(), kdf_name);

         result.test_eq("derived key", kdf->derive_key(expected.size(), secret, salt, label), expected);

         if(expected.size() == 32) {

            const auto key = kdf->derive_key<32>(secret, salt, label);

            result.test_eq("derived key as array", Botan::secure_vector<uint8_t>{key.begin(), key.end()}, expected);

         // Test that clone works

         auto clone = kdf->new_object();

         result.confirm("Clone has different pointer", kdf.get() != clone.get());

         result.test_eq("Clone has same name", kdf->name(), clone->name());

         return result;

};

BOTAN_REGISTER_SMOKE_TEST("kdf", "kdf_kat", KDF_KAT_Tests);

#endif

#if defined(BOTAN_HAS_HKDF)

class HKDF_Expand_Label_Tests final : public Text_Based_Test {

   public:

      HKDF_Expand_Label_Tests() : Text_Based_Test("hkdf_label.vec", "Secret,Label,HashValue,Output") {}

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

         Test::Result result("HKDF-Expand-Label(" + hash_name + ")");

         const std::vector<uint8_t> secret = vars.get_req_bin("Secret");

         const std::vector<uint8_t> hashval = vars.get_req_bin("HashValue");

         const std::string label = vars.get_req_str("Label");

         const std::vector<uint8_t> expected = vars.get_req_bin("Output");

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

         if(!hash) {

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

            return result;

         Botan::secure_vector<uint8_t> output =

            Botan::hkdf_expand_label(hash_name, secret, label, hashval, expected.size());

         result.test_eq("Output matches", output, expected);

         return result;

};

BOTAN_REGISTER_TEST("kdf", "hkdf_expand_label", HKDF_Expand_Label_Tests);

#endif

}  // namespace

}  // namespace Botan_Tests