1 files changed, 116 insertions, 0 deletions
diff --git a/old/botan/src/pubkey/dl_algo/dl_algo.h b/old/botan/src/pubkey/dl_algo/dl_algo.h
new file mode 100644
index 0000000..256ce96
--- /dev/null
+++ b/old/botan/src/pubkey/dl_algo/dl_algo.h
@@ -0,0 +1,116 @@
+/*
+* DL Scheme
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_DL_ALGO_H__
+#define BOTAN_DL_ALGO_H__
+
+#include <botan/dl_group.h>
+#include <botan/x509_key.h>
+#include <botan/pkcs8.h>
+#include <botan/rng.h>
+
+namespace Botan {
+
+/**
+* This class represents discrete logarithm (DL) public keys.
+*/
+class BOTAN_DLL DL_Scheme_PublicKey : public virtual Public_Key
+   {
+   public:
+      bool check_key(RandomNumberGenerator& rng, bool) const;
+
+      /**
+      * Get the DL domain parameters of this key.
+      * @return the DL domain parameters of this key
+      */
+      const DL_Group& get_domain() const { return group; }
+
+      /**
+      * Get the public value y with y = g^x mod p where x is the secret key.
+      */
+      const BigInt& get_y() const { return y; }
+
+      /**
+      * Get the prime p of the underlying DL group.
+      * @return the prime p
+      */
+      const BigInt& group_p() const { return group.get_p(); }
+
+      /**
+      * Get the prime q of the underlying DL group.
+      * @return the prime q
+      */
+      const BigInt& group_q() const { return group.get_q(); }
+
+      /**
+      * Get the generator g of the underlying DL group.
+      * @return the generator g
+      */
+      const BigInt& group_g() const { return group.get_g(); }
+
+      /**
+      * Get the underlying groups encoding format.
+      * @return the encoding format
+      */
+      virtual DL_Group::Format group_format() const = 0;
+
+      /**
+      * Get an X509 encoder for this key.
+      * @return an encoder usable to encode this key.
+      */
+      X509_Encoder* x509_encoder() const;
+
+      /**
+      * Get an X509 decoder for this key.
+      * @return an decoder usable to decode a DL key and store the
+      * values in this instance.
+      */
+      X509_Decoder* x509_decoder();
+   protected:
+      BigInt y;
+      DL_Group group;
+   private:
+      virtual void X509_load_hook() {}
+   };
+
+/**
+* This class represents discrete logarithm (DL) private keys.
+*/
+class BOTAN_DLL DL_Scheme_PrivateKey : public virtual DL_Scheme_PublicKey,
+                                       public virtual Private_Key
+   {
+   public:
+      bool check_key(RandomNumberGenerator& rng, bool) const;
+
+      /**
+      * Get the secret key x.
+      * @return the secret key
+      */
+      const BigInt& get_x() const { return x; }
+
+      /**
+      * Get an PKCS#8 encoder for this key.
+      * @return an encoder usable to encode this key.
+      */
+      PKCS8_Encoder* pkcs8_encoder() const;
+
+      /**
+      * Get an PKCS#8 decoder for this key.
+      * @param rng the rng to use
+      * @return an decoder usable to decode a DL key and store the
+      * values in this instance.
+      */
+      PKCS8_Decoder* pkcs8_decoder(RandomNumberGenerator& rng);
+   protected:
+      BigInt x;
+   private:
+      virtual void PKCS8_load_hook(RandomNumberGenerator&, bool = false) {}
+   };
+
+}
+
+#endif