1 files changed, 67 insertions, 0 deletions
diff --git a/src/libstate/lookup_s2k.cpp b/src/libstate/lookup_s2k.cpp
new file mode 100644
index 000000000..d6ac8703b
--- /dev/null
+++ b/src/libstate/lookup_s2k.cpp
@@ -0,0 +1,67 @@
+/*************************************************
+* S2K Lookup                                     *
+* (C) 1999-2007 Jack Lloyd                       *
+*************************************************/
+
+#include <botan/eng_def.h>
+#include <botan/lookup.h>
+#include <botan/libstate.h>
+#include <botan/parsing.h>
+#include <memory>
+
+#if defined(BOTAN_HAS_PBKDF1)
+  #include <botan/pbkdf1.h>
+#endif
+
+#if defined(BOTAN_HAS_PBKDF2)
+  #include <botan/pbkdf2.h>
+#endif
+
+#if defined(BOTAN_HAS_PGPS2K)
+  #include <botan/pgp_s2k.h>
+#endif
+
+namespace Botan {
+
+/*************************************************
+* Look for an algorithm with this name           *
+*************************************************/
+S2K* Default_Engine::find_s2k(const std::string& algo_spec) const
+   {
+   std::vector<std::string> name = parse_algorithm_name(algo_spec);
+   if(name.empty())
+      return 0;
+
+   const std::string algo_name = global_state().deref_alias(name[0]);
+
+#if defined(BOTAN_HAS_PBKDF1)
+   if(algo_name == "PBKDF1")
+      {
+      if(name.size() == 2)
+         return new PKCS5_PBKDF1(get_hash(name[1]));
+      throw Invalid_Algorithm_Name(algo_spec);
+      }
+#endif
+
+#if defined(BOTAN_HAS_PBKDF2)
+   if(algo_name == "PBKDF2")
+      {
+      if(name.size() == 2)
+         return new PKCS5_PBKDF2(get_mac("HMAC(" + name[1] + ")"));
+      throw Invalid_Algorithm_Name(algo_spec);
+      }
+#endif
+
+#if defined(BOTAN_HAS_PGPS2K)
+   if(algo_name == "OpenPGP-S2K")
+      {
+      if(name.size() == 2)
+         return new OpenPGP_S2K(get_hash(name[1]));
+      throw Invalid_Algorithm_Name(algo_spec);
+      }
+#endif
+
+   return 0;
+   }
+
+}