Export stream ciphers

2 files changed, 57 insertions, 0 deletions

diff --git a/misc/python/src/core.cpp b/misc/python/src/core.cpp
index 3ede4f51c..0f30f470e 100644
--- a/misc/python/src/core.cpp
+++ b/misc/python/src/core.cpp
@@ -10,6 +10,7 @@ using namespace Botan;
 namespace python = boost::python;
 
 extern void export_block_ciphers();
+extern void export_stream_ciphers();
 extern void export_hash_functions();
 extern void export_macs();
 extern void export_filters();
@@ -32,6 +33,7 @@ BOOST_PYTHON_MODULE(_botan)
       .value("decryption", DECRYPTION);
 
    export_block_ciphers();
+   export_stream_ciphers();
    export_hash_functions();
    export_macs();
    export_filters();
diff --git a/misc/python/src/stream.cpp b/misc/python/src/stream.cpp
new file mode 100644
index 000000000..35e9e7c13
--- /dev/null
+++ b/misc/python/src/stream.cpp
@@ -0,0 +1,55 @@
+/*************************************************
+* Boost.Python module definition                 *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#include <botan/botan.h>
+using namespace Botan;
+
+#include <boost/python.hpp>
+namespace python = boost::python;
+
+class Py_StreamCipher
+   {
+   public:
+      u32bit keylength_min() const { return cipher->MINIMUM_KEYLENGTH; }
+      u32bit keylength_max() const { return cipher->MAXIMUM_KEYLENGTH; }
+      u32bit keylength_mod() const { return cipher->KEYLENGTH_MULTIPLE; }
+
+      void set_key(const OctetString& key) { cipher->set_key(key); }
+      bool valid_keylength(u32bit kl) const
+         {
+         return cipher->valid_keylength(kl);
+         }
+
+      std::string name() const { return cipher->name(); }
+      void clear() throw() { cipher->clear(); }
+
+      std::string crypt(const std::string& in) const
+         {
+         SecureVector<byte> out(in.size());
+         cipher->encrypt((const byte*)in.data(), out.begin(), in.size());
+         return std::string((const char*)out.begin(), out.size());
+         }
+
+      Py_StreamCipher(const std::string& name)
+         {
+         cipher = get_stream_cipher(name);
+         }
+      ~Py_StreamCipher() { delete cipher; }
+   private:
+      StreamCipher* cipher;
+   };
+
+void export_stream_ciphers()
+   {
+   python::class_<Py_StreamCipher>("StreamCipher", python::init<std::string>())
+      .add_property("keylength_min", &Py_StreamCipher::keylength_min)
+      .add_property("keylength_max", &Py_StreamCipher::keylength_max)
+      .add_property("keylength_mod", &Py_StreamCipher::keylength_mod)
+      .add_property("name", &Py_StreamCipher::name)
+      .def("clear", &Py_StreamCipher::clear)
+      .def("valid_keylength", &Py_StreamCipher::valid_keylength)
+      .def("set_key", &Py_StreamCipher::set_key)
+      .def("crypt", &Py_StreamCipher::crypt);
+   }