1 files changed, 57 insertions, 0 deletions
diff --git a/include/dh.h b/include/dh.h
new file mode 100644
index 000000000..f30033d9d
--- /dev/null
+++ b/include/dh.h
@@ -0,0 +1,57 @@
+/*************************************************
+* Diffie-Hellman Header File                     *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#ifndef BOTAN_DIFFIE_HELLMAN_H__
+#define BOTAN_DIFFIE_HELLMAN_H__
+
+#include <botan/dl_algo.h>
+#include <botan/pk_core.h>
+
+namespace Botan {
+
+/*************************************************
+* Diffie-Hellman Public Key                      *
+*************************************************/
+class DH_PublicKey : public virtual DL_Scheme_PublicKey
+   {
+   public:
+      MemoryVector<byte> public_value() const;
+      DH_PublicKey(const DL_Group&, const BigInt&);
+   protected:
+      std::string algo_name() const { return "DH"; }
+      DH_PublicKey() {}
+   private:
+      friend X509_PublicKey* get_public_key(const std::string&);
+      DL_Group::Format group_format() const { return DL_Group::ANSI_X9_42; }
+      void X509_load_hook();
+   };
+
+/*************************************************
+* Diffie-Hellman Private Key                     *
+*************************************************/
+class DH_PrivateKey : public DH_PublicKey,
+                      public PK_Key_Agreement_Key,
+                      public virtual DL_Scheme_PrivateKey
+   {
+   public:
+      SecureVector<byte> derive_key(const byte[], u32bit) const;
+      SecureVector<byte> derive_key(const DH_PublicKey&) const;
+      SecureVector<byte> derive_key(const BigInt&) const;
+
+      MemoryVector<byte> public_value() const;
+
+      DH_PrivateKey(const DL_Group&);
+      DH_PrivateKey(const DL_Group&, const BigInt&, const BigInt& = 0);
+   private:
+      friend PKCS8_PrivateKey* get_private_key(const std::string&);
+      void PKCS8_load_hook();
+      DH_PrivateKey() {}
+
+      DH_Core core;
+   };
+
+}
+
+#endif