Add an implementation of McEliece encryption based on HyMES

(https://www.rocq.inria.fr/secret/CBCrypto/index.php?pg=hymes).
The original version is LGPL but cryptsource GmbH has secured
permission to release it under a BSD license. Also includes the
Overbeck CCA2 message encoding scheme.

1 files changed, 24 insertions, 0 deletions

diff --git a/src/lib/pubkey/mce/gf2m_rootfind_dcmp.h b/src/lib/pubkey/mce/gf2m_rootfind_dcmp.h
new file mode 100644
index 000000000..8e1e1cd75
--- /dev/null
+++ b/src/lib/pubkey/mce/gf2m_rootfind_dcmp.h
@@ -0,0 +1,24 @@
+/**
+ *
+ * (C) 2014 cryptosource GmbH
+ * (C) 2014 Falko Strenzke [email protected]
+ *
+ * Distributed under the terms of the Botan license
+ *
+ */
+
+#ifndef __gf2m_rootfind_dcmp__H_
+#define __gf2m_rootfind_dcmp__H_
+
+#include <botan/polyn_gf2m.h>
+namespace Botan
+{
+  /**
+   * Find the roots of a polynomial over GF(2^m) using the method by Federenko
+   * et al.
+   */
+  secure_vector<gf2m> find_roots_gf2m_decomp(const polyn_gf2m & polyn, u32bit code_length);
+
+} // end namespace Botan
+
+#endif /* h-guard */