From ad6555f522ae16f6284e8dafa02f630b88bcf289 Mon Sep 17 00:00:00 2001
From: lloyd <lloyd@randombit.net>
Date: Fri, 10 Jan 2014 23:07:16 +0000
Subject: Split up docs into the reference manual, the website, and everything
 else. Add `website` target to makefile.

Some progress towards fixing minimized builds.

TLS now hard requires ECDSA and GCM since otherwise a minimized build
has only insecure options.

Remove boost_thread dependency in command line tool
---
 src/tests/test_hkdf.cpp | 81 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 src/tests/test_hkdf.cpp

(limited to 'src/tests/test_hkdf.cpp')

diff --git a/src/tests/test_hkdf.cpp b/src/tests/test_hkdf.cpp
new file mode 100644
index 000000000..842123968
--- /dev/null
+++ b/src/tests/test_hkdf.cpp
@@ -0,0 +1,81 @@
+#include "tests.h"
+
+#include <botan/libstate.h>
+#if defined(BOTAN_HAS_HKDF)
+  #include <botan/hkdf.h>
+#endif
+#include <botan/hex.h>
+#include <iostream>
+#include <fstream>
+
+using namespace Botan;
+
+namespace {
+
+secure_vector<byte> hkdf(const std::string& hkdf_algo,
+                         const secure_vector<byte>& ikm,
+                         const secure_vector<byte>& salt,
+                         const secure_vector<byte>& info,
+                         size_t L)
+   {
+   Algorithm_Factory& af = global_state().algorithm_factory();
+
+   const std::string algo = hkdf_algo.substr(5, hkdf_algo.size()-6);
+
+   const MessageAuthenticationCode* mac_proto = af.prototype_mac("HMAC(" + algo + ")");
+
+   if(!mac_proto)
+      throw std::invalid_argument("Bad HKDF hash '" + algo + "'");
+
+#if defined(BOTAN_HAS_HKDF)
+   HKDF hkdf(mac_proto->clone(), mac_proto->clone());
+
+   hkdf.start_extract(&salt[0], salt.size());
+   hkdf.extract(&ikm[0], ikm.size());
+   hkdf.finish_extract();
+
+   secure_vector<byte> key(L);
+   hkdf.expand(&key[0], key.size(), &info[0], info.size());
+   return key;
+#else
+   return "";
+#endif
+   }
+
+size_t hkdf_test(const std::string& algo,
+               const std::string& ikm,
+               const std::string& salt,
+               const std::string& info,
+               const std::string& okm,
+               size_t L)
+   {
+   const std::string got = hex_encode(
+      hkdf(algo,
+           hex_decode_locked(ikm),
+           hex_decode_locked(salt),
+           hex_decode_locked(info),
+           L)
+      );
+
+   if(got != okm)
+      {
+      std::cout << "HKDF got " << got << " expected " << okm << std::endl;
+      return 1;
+      }
+
+   return 0;
+   }
+
+}
+
+size_t test_hkdf()
+   {
+   std::ifstream vec(TEST_DATA_DIR "/hkdf.vec");
+
+   return run_tests_bb(vec, "HKDF", "OKM", true,
+             [](std::map<std::string, std::string> m) -> size_t
+             {
+             return hkdf_test(m["HKDF"], m["IKM"], m["salt"], m["info"],
+                              m["OKM"], to_u32bit(m["L"]));
+             });
+   }
-- 
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