Remove the Overbeck conversion at Dr. Strenzke's request.

While a CCA2 proof of this scheme exists, it is written in German and
for various reasons publishing a translation would be a complicated
affair. Without a (well studied) English proof it is harder to
understand the security of the overall scheme. Thus only KEM, which
seems much easier to prove, will be offered.

1 files changed, 0 insertions, 46 deletions

diff --git a/src/lib/pubkey/mce/mce_overbeck_cca2.h b/src/lib/pubkey/mce/mce_overbeck_cca2.h
deleted file mode 100644
index 1b9439753..000000000
--- a/src/lib/pubkey/mce/mce_overbeck_cca2.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/**
- * (C) 2014 cryptosource GmbH
- * (C) 2014 Falko Strenzke [email protected]
- *
- * Distributed under the terms of the Botan license
- *
- */
-
-#ifndef __mce_overbeck_cca2__H_
-#define __mce_overbeck_cca2__H_
-
-#include <botan/pk_ops.h>
-#include <botan/mceliece_key.h>
-#include <botan/mceliece.h>
-#include <botan/types.h>
-#include <botan/secmem.h>
-
-namespace Botan
-{
-class BOTAN_DLL McEliece_Overbeck_CCA2_Public_Operation : public PK_Ops::Encryption
-{
-  public:
-  McEliece_Overbeck_CCA2_Public_Operation(const McEliece_PublicKey& public_key);
-
-  size_t max_input_bits() const { return 512; };
-  secure_vector<byte> encrypt(const byte msg[], size_t msg_len, RandomNumberGenerator&);
-
-  private:
-  McEliece_Public_Operation m_raw_pub_op;
-};
-
-class BOTAN_DLL McEliece_Overbeck_CCA2_Private_Operation : public PK_Ops::Decryption
-  {
-    public:
-      McEliece_Overbeck_CCA2_Private_Operation(const McEliece_PrivateKey& mce_key);
-
-      size_t max_input_bits() const { return (m_raw_priv_op.max_input_bits()+7)/8*8 + 2*512; };
-
-
-secure_vector<byte> decrypt(const byte msg[], size_t msg_len);
-    private:
-      McEliece_Private_Operation m_raw_priv_op;
-  };
-}
-
-#endif /* h-guard */