Remove NR and DSA specific hooks

18 files changed, 5 insertions, 626 deletions

diff --git a/src/engine/def_engine/def_pk_ops.cpp b/src/engine/def_engine/def_pk_ops.cpp
index 57d17f662..ce23cd8db 100644
--- a/src/engine/def_engine/def_pk_ops.cpp
+++ b/src/engine/def_engine/def_pk_ops.cpp
@@ -7,27 +7,13 @@
 
 #include <botan/internal/default_engine.h>
 
-#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
-  #include <botan/if_op.h>
-#endif
-
-#if defined(BOTAN_HAS_DSA)
-  #include <botan/dsa_op.h>
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-  #include <botan/nr_op.h>
-#endif
-
-#if defined(BOTAN_HAS_ELGAMAL)
-  #include <botan/elg_op.h>
-#endif
-
 #if defined(BOTAN_HAS_RSA)
+  #include <botan/if_op.h>
   #include <botan/rsa.h>
 #endif
 
 #if defined(BOTAN_HAS_RW)
+  #include <botan/if_op.h>
   #include <botan/rw.h>
 #endif
 
@@ -41,6 +27,7 @@
 
 #if defined(BOTAN_HAS_ELGAMAL)
   #include <botan/elgamal.h>
+  #include <botan/elg_op.h>
 #endif
 
 #if defined(BOTAN_HAS_GOST_3410_2001)
@@ -164,28 +151,6 @@ IF_Operation* Default_Engine::if_op(const BigInt& e, const BigInt& n,
    }
 #endif
 
-#if defined(BOTAN_HAS_DSA)
-/*
-* Acquire a DSA op
-*/
-DSA_Operation* Default_Engine::dsa_op(const DL_Group& group, const BigInt& y,
-                                      const BigInt& x) const
-   {
-   return new Default_DSA_Op(group, y, x);
-   }
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-/*
-* Acquire a NR op
-*/
-NR_Operation* Default_Engine::nr_op(const DL_Group& group, const BigInt& y,
-                                    const BigInt& x) const
-   {
-   return new Default_NR_Op(group, y, x);
-   }
-#endif
-
 #if defined(BOTAN_HAS_ELGAMAL)
 /*
 * Acquire an ElGamal op
diff --git a/src/engine/def_engine/default_engine.h b/src/engine/def_engine/default_engine.h
index 4e21fb3a5..d74f61459 100644
--- a/src/engine/def_engine/default_engine.h
+++ b/src/engine/def_engine/default_engine.h
@@ -34,15 +34,6 @@ class Default_Engine : public Engine
                           const BigInt&, const BigInt&) const;
 #endif
 
-#if defined(BOTAN_HAS_DSA)
-      DSA_Operation* dsa_op(const DL_Group&, const BigInt&,
-                            const BigInt&) const;
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-      NR_Operation* nr_op(const DL_Group&, const BigInt&, const BigInt&) const;
-#endif
-
 #if defined(BOTAN_HAS_ELGAMAL)
       ELG_Operation* elg_op(const DL_Group&, const BigInt&,
                             const BigInt&) const;
diff --git a/src/engine/engine.h b/src/engine/engine.h
index b0bbf5b14..c62a7f956 100644
--- a/src/engine/engine.h
+++ b/src/engine/engine.h
@@ -25,14 +25,6 @@
   #include <botan/if_op.h>
 #endif
 
-#if defined(BOTAN_HAS_DSA)
-  #include <botan/dsa_op.h>
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-  #include <botan/nr_op.h>
-#endif
-
 #if defined(BOTAN_HAS_ELGAMAL)
   #include <botan/elg_op.h>
 #endif
@@ -102,18 +94,6 @@ class BOTAN_DLL Engine
          { return 0; }
 #endif
 
-#if defined(BOTAN_HAS_DSA)
-      virtual DSA_Operation* dsa_op(const DL_Group&, const BigInt&,
-                                    const BigInt&) const
-         { return 0; }
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-      virtual NR_Operation* nr_op(const DL_Group&, const BigInt&,
-                                  const BigInt&) const
-         { return 0; }
-#endif
-
 #if defined(BOTAN_HAS_ELGAMAL)
       virtual ELG_Operation* elg_op(const DL_Group&, const BigInt&,
                                     const BigInt&) const
diff --git a/src/libstate/pk_engine.cpp b/src/libstate/pk_engine.cpp
index 51aaa073e..d4187adc1 100644
--- a/src/libstate/pk_engine.cpp
+++ b/src/libstate/pk_engine.cpp
@@ -34,44 +34,6 @@ IF_Operation* if_op(const BigInt& e, const BigInt& n, const BigInt& d,
    }
 #endif
 
-#if defined(BOTAN_HAS_DSA)
-/*
-* Acquire a DSA op
-*/
-DSA_Operation* dsa_op(const DL_Group& group, const BigInt& y, const BigInt& x)
-   {
-   Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
-
-   while(const Engine* engine = i.next())
-      {
-      DSA_Operation* op = engine->dsa_op(group, y, x);
-      if(op)
-         return op;
-      }
-
-   throw Lookup_Error("Engine_Core::dsa_op: Unable to find a working engine");
-   }
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-/*
-* Acquire a NR op
-*/
-NR_Operation* nr_op(const DL_Group& group, const BigInt& y, const BigInt& x)
-   {
-   Algorithm_Factory::Engine_Iterator i(global_state().algorithm_factory());
-
-   while(const Engine* engine = i.next())
-      {
-      NR_Operation* op = engine->nr_op(group, y, x);
-      if(op)
-         return op;
-      }
-
-   throw Lookup_Error("Engine_Core::nr_op: Unable to find a working engine");
-   }
-#endif
-
 #if defined(BOTAN_HAS_ELGAMAL)
 /*
 * Acquire an ElGamal op
diff --git a/src/libstate/pk_engine.h b/src/libstate/pk_engine.h
index e6399058e..3bc1a90f1 100644
--- a/src/libstate/pk_engine.h
+++ b/src/libstate/pk_engine.h
@@ -15,14 +15,6 @@
   #include <botan/if_op.h>
 #endif
 
-#if defined(BOTAN_HAS_DSA)
-  #include <botan/dsa_op.h>
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-  #include <botan/nr_op.h>
-#endif
-
 #if defined(BOTAN_HAS_ELGAMAL)
   #include <botan/elg_op.h>
 #endif
@@ -46,14 +38,6 @@ IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&,
                     const BigInt&, const BigInt&);
 #endif
 
-#if defined(BOTAN_HAS_DSA)
-DSA_Operation* dsa_op(const DL_Group&, const BigInt&, const BigInt&);
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-NR_Operation* nr_op(const DL_Group&, const BigInt&, const BigInt&);
-#endif
-
 #if defined(BOTAN_HAS_ELGAMAL)
 ELG_Operation* elg_op(const DL_Group&, const BigInt&, const BigInt&);
 #endif
diff --git a/src/pubkey/dsa/dsa.cpp b/src/pubkey/dsa/dsa.cpp
index 52df9827f..60414195d 100644
--- a/src/pubkey/dsa/dsa.cpp
+++ b/src/pubkey/dsa/dsa.cpp
@@ -19,16 +19,6 @@ DSA_PublicKey::DSA_PublicKey(const DL_Group& grp, const BigInt& y1)
    {
    group = grp;
    y = y1;
-   core = DSA_Core(group, y);
-   }
-
-/*
-* DSA Verification Function
-*/
-bool DSA_PublicKey::verify(const byte msg[], u32bit msg_len,
-                           const byte sig[], u32bit sig_len) const
-   {
-   return core.verify(msg, msg_len, sig, sig_len);
    }
 
 /*
@@ -46,8 +36,6 @@ DSA_PrivateKey::DSA_PrivateKey(RandomNumberGenerator& rng,
 
    y = power_mod(group_g(), x, group_p());
 
-   core = DSA_Core(group, y, x);
-
    if(x_arg == 0)
       gen_check(rng);
    else
@@ -60,7 +48,6 @@ DSA_PrivateKey::DSA_PrivateKey(const AlgorithmIdentifier& alg_id,
    DL_Scheme_PrivateKey(alg_id, key_bits, DL_Group::ANSI_X9_57)
    {
    y = power_mod(group_g(), x, group_p());
-   core = DSA_Core(group, y, x);
 
    load_check(rng);
    }
diff --git a/src/pubkey/dsa/dsa.h b/src/pubkey/dsa/dsa.h
index 68ae34235..f8db77a1b 100644
--- a/src/pubkey/dsa/dsa.h
+++ b/src/pubkey/dsa/dsa.h
@@ -12,7 +12,6 @@
 #include <botan/pk_ops.h>
 #include <botan/reducer.h>
 #include <botan/pow_mod.h>
-#include <botan/dsa_core.h>
 
 namespace Botan {
 
@@ -30,20 +29,15 @@ class BOTAN_DLL DSA_PublicKey : public PK_Verifying_wo_MR_Key,
       u32bit message_part_size() const { return group_q().bytes(); }
       u32bit max_input_bits() const { return group_q().bits(); }
 
-      bool verify(const byte msg[], u32bit msg_len,
-                  const byte sig[], u32bit sig_len) const;
-
       DSA_PublicKey(const AlgorithmIdentifier& alg_id,
                     const MemoryRegion<byte>& key_bits) :
          DL_Scheme_PublicKey(alg_id, key_bits, DL_Group::ANSI_X9_57)
          {
-         core = DSA_Core(group, y);
          }
 
       DSA_PublicKey(const DL_Group& group, const BigInt& y);
    protected:
       DSA_PublicKey() {}
-      DSA_Core core;
    };
 
 /*
diff --git a/src/pubkey/dsa/dsa_core.cpp b/src/pubkey/dsa/dsa_core.cpp
deleted file mode 100644
index d952e10eb..000000000
--- a/src/pubkey/dsa/dsa_core.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
-* DSA Core
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/dsa_core.h>
-#include <botan/numthry.h>
-#include <botan/internal/pk_engine.h>
-#include <botan/parsing.h>
-#include <algorithm>
-
-namespace Botan {
-
-/*
-* DSA_Core Constructor
-*/
-DSA_Core::DSA_Core(const DL_Group& group, const BigInt& y, const BigInt& x)
-   {
-   op = Engine_Core::dsa_op(group, y, x);
-   }
-
-/*
-* DSA_Core Copy Constructor
-*/
-DSA_Core::DSA_Core(const DSA_Core& core)
-   {
-   op = 0;
-   if(core.op)
-      op = core.op->clone();
-   }
-
-/*
-* DSA_Core Assignment Operator
-*/
-DSA_Core& DSA_Core::operator=(const DSA_Core& core)
-   {
-   delete op;
-   if(core.op)
-      op = core.op->clone();
-   return (*this);
-   }
-
-/*
-* DSA Verification Operation
-*/
-bool DSA_Core::verify(const byte msg[], u32bit msg_length,
-                      const byte sig[], u32bit sig_length) const
-   {
-   return op->verify(msg, msg_length, sig, sig_length);
-   }
-
-/*
-* DSA Signature Operation
-*/
-SecureVector<byte> DSA_Core::sign(const byte in[], u32bit length,
-                                  const BigInt& k) const
-   {
-   return op->sign(in, length, k);
-   }
-
-}
diff --git a/src/pubkey/dsa/dsa_core.h b/src/pubkey/dsa/dsa_core.h
deleted file mode 100644
index 8bb16211f..000000000
--- a/src/pubkey/dsa/dsa_core.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
-* DSA Core
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#ifndef BOTAN_DSA_CORE_H__
-#define BOTAN_DSA_CORE_H__
-
-#include <botan/dsa_op.h>
-#include <botan/dl_group.h>
-
-namespace Botan {
-
-/*
-* DSA Core
-*/
-class BOTAN_DLL DSA_Core
-   {
-   public:
-      SecureVector<byte> sign(const byte[], u32bit, const BigInt&) const;
-      bool verify(const byte[], u32bit, const byte[], u32bit) const;
-
-      DSA_Core& operator=(const DSA_Core&);
-
-      DSA_Core() { op = 0; }
-      DSA_Core(const DSA_Core&);
-      DSA_Core(const DL_Group&, const BigInt&, const BigInt& = 0);
-      ~DSA_Core() { delete op; }
-   private:
-      DSA_Operation* op;
-   };
-
-}
-
-#endif
diff --git a/src/pubkey/dsa/dsa_op.cpp b/src/pubkey/dsa/dsa_op.cpp
deleted file mode 100644
index 5b921441d..000000000
--- a/src/pubkey/dsa/dsa_op.cpp
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
-* DSA Operations
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/dsa_op.h>
-
-namespace Botan {
-
-/*
-* Default_DSA_Op Constructor
-*/
-Default_DSA_Op::Default_DSA_Op(const DL_Group& grp, const BigInt& y1,
-                               const BigInt& x1) : x(x1), y(y1), group(grp)
-   {
-   powermod_g_p = Fixed_Base_Power_Mod(group.get_g(), group.get_p());
-   powermod_y_p = Fixed_Base_Power_Mod(y, group.get_p());
-   mod_p = Modular_Reducer(group.get_p());
-   mod_q = Modular_Reducer(group.get_q());
-   }
-
-/*
-* Default DSA Verify Operation
-*/
-bool Default_DSA_Op::verify(const byte msg[], u32bit msg_len,
-                            const byte sig[], u32bit sig_len) const
-   {
-   const BigInt& q = group.get_q();
-
-   if(sig_len != 2*q.bytes() || msg_len > q.bytes())
-      return false;
-
-   BigInt r(sig, q.bytes());
-   BigInt s(sig + q.bytes(), q.bytes());
-   BigInt i(msg, msg_len);
-
-   if(r <= 0 || r >= q || s <= 0 || s >= q)
-      return false;
-
-   s = inverse_mod(s, q);
-   s = mod_p.multiply(powermod_g_p(mod_q.multiply(s, i)),
-                      powermod_y_p(mod_q.multiply(s, r)));
-
-   return (mod_q.reduce(s) == r);
-   }
-
-/*
-* Default DSA Sign Operation
-*/
-SecureVector<byte> Default_DSA_Op::sign(const byte in[], u32bit length,
-                                        const BigInt& k) const
-   {
-   if(x == 0)
-      throw Internal_Error("Default_DSA_Op::sign: No private key");
-
-   const BigInt& q = group.get_q();
-   BigInt i(in, length);
-
-   BigInt r = mod_q.reduce(powermod_g_p(k));
-   BigInt s = mod_q.multiply(inverse_mod(k, q), mul_add(x, r, i));
-
-   if(r.is_zero() || s.is_zero())
-      throw Internal_Error("Default_DSA_Op::sign: r or s was zero");
-
-   SecureVector<byte> output(2*q.bytes());
-   r.binary_encode(output + (output.size() / 2 - r.bytes()));
-   s.binary_encode(output + (output.size() - s.bytes()));
-   return output;
-   }
-
-}
diff --git a/src/pubkey/dsa/dsa_op.h b/src/pubkey/dsa/dsa_op.h
deleted file mode 100644
index 47a9d09e1..000000000
--- a/src/pubkey/dsa/dsa_op.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
-* DSA Operations
-* (C) 1999-2008 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#ifndef BOTAN_DSA_OPS_H__
-#define BOTAN_DSA_OPS_H__
-
-#include <botan/numthry.h>
-#include <botan/pow_mod.h>
-#include <botan/reducer.h>
-#include <botan/dl_group.h>
-
-namespace Botan {
-
-/*
-* DSA Operation
-*/
-class BOTAN_DLL DSA_Operation
-   {
-   public:
-      virtual bool verify(const byte msg[], u32bit msg_len,
-                          const byte sig[], u32bit sig_len) const = 0;
-
-      virtual SecureVector<byte> sign(const byte msg[], u32bit msg_len,
-                                      const BigInt& k) const = 0;
-
-      virtual DSA_Operation* clone() const = 0;
-
-      virtual ~DSA_Operation() {}
-   };
-
-/*
-* Botan's Default DSA Operation
-*/
-class BOTAN_DLL Default_DSA_Op : public DSA_Operation
-   {
-   public:
-      bool verify(const byte msg[], u32bit msg_len,
-                  const byte sig[], u32bit sig_len) const;
-
-      SecureVector<byte> sign(const byte msg[], u32bit msg_len,
-                              const BigInt& k) const;
-
-      DSA_Operation* clone() const { return new Default_DSA_Op(*this); }
-
-      Default_DSA_Op(const DL_Group&, const BigInt&, const BigInt&);
-   private:
-      const BigInt x, y;
-      const DL_Group group;
-      Fixed_Base_Power_Mod powermod_g_p, powermod_y_p;
-      Modular_Reducer mod_p, mod_q;
-   };
-
-}
-
-#endif
diff --git a/src/pubkey/dsa/info.txt b/src/pubkey/dsa/info.txt
index 1248cf68d..d59fe7aa7 100644
--- a/src/pubkey/dsa/info.txt
+++ b/src/pubkey/dsa/info.txt
@@ -1,17 +1,5 @@
 define DSA
 
-<header:public>
-dsa.h
-dsa_core.h
-dsa_op.h
-</header:public>
-
-<source>
-dsa.cpp
-dsa_core.cpp
-dsa_op.cpp
-</source>
-
 <requires>
 dl_algo
 dl_group
diff --git a/src/pubkey/nr/nr.cpp b/src/pubkey/nr/nr.cpp
index 700e93092..540cfa281 100644
--- a/src/pubkey/nr/nr.cpp
+++ b/src/pubkey/nr/nr.cpp
@@ -16,7 +16,6 @@ NR_PublicKey::NR_PublicKey(const AlgorithmIdentifier& alg_id,
                            const MemoryRegion<byte>& key_bits) :
    DL_Scheme_PublicKey(alg_id, key_bits, DL_Group::ANSI_X9_57)
    {
-   core = NR_Core(group, y);
    }
 
 /*
@@ -26,16 +25,6 @@ NR_PublicKey::NR_PublicKey(const DL_Group& grp, const BigInt& y1)
    {
    group = grp;
    y = y1;
-
-   core = NR_Core(group, y);
-   }
-
-/*
-* Nyberg-Rueppel Verification Function
-*/
-SecureVector<byte> NR_PublicKey::verify(const byte sig[], u32bit sig_len) const
-   {
-   return core.verify(sig, sig_len);
    }
 
 /*
@@ -53,8 +42,6 @@ NR_PrivateKey::NR_PrivateKey(RandomNumberGenerator& rng,
 
    y = power_mod(group_g(), x, group_p());
 
-   core = NR_Core(group, y, x);
-
    if(x_arg == 0)
       gen_check(rng);
    else
@@ -68,8 +55,6 @@ NR_PrivateKey::NR_PrivateKey(const AlgorithmIdentifier& alg_id,
    {
    y = power_mod(group_g(), x, group_p());
 
-   core = NR_Core(group, y, x);
-
    load_check(rng);
    }
 
diff --git a/src/pubkey/nr/nr.h b/src/pubkey/nr/nr.h
index 7a6aaf8fb..c6c7d871c 100644
--- a/src/pubkey/nr/nr.h
+++ b/src/pubkey/nr/nr.h
@@ -10,7 +10,8 @@
 
 #include <botan/dl_algo.h>
 #include <botan/pk_ops.h>
-#include <botan/nr_core.h>
+#include <botan/numthry.h>
+#include <botan/reducer.h>
 
 namespace Botan {
 
@@ -23,8 +24,6 @@ class BOTAN_DLL NR_PublicKey : public PK_Verifying_with_MR_Key,
    public:
       std::string algo_name() const { return "NR"; }
 
-      SecureVector<byte> verify(const byte sig[], u32bit sig_len) const;
-
       DL_Group::Format group_format() const { return DL_Group::ANSI_X9_57; }
 
       u32bit message_parts() const { return 2; }
@@ -37,7 +36,6 @@ class BOTAN_DLL NR_PublicKey : public PK_Verifying_with_MR_Key,
       NR_PublicKey(const DL_Group& group, const BigInt& pub_key);
    protected:
       NR_PublicKey() {}
-      NR_Core core;
    };
 
 /*
diff --git a/src/pubkey/nr/nr_core.cpp b/src/pubkey/nr/nr_core.cpp
deleted file mode 100644
index a87c32d60..000000000
--- a/src/pubkey/nr/nr_core.cpp
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
-* NR Core
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/nr_core.h>
-#include <botan/numthry.h>
-#include <botan/internal/pk_engine.h>
-#include <botan/parsing.h>
-#include <algorithm>
-
-namespace Botan {
-
-/*
-* NR_Core Constructor
-*/
-NR_Core::NR_Core(const DL_Group& group, const BigInt& y, const BigInt& x)
-   {
-   op = Engine_Core::nr_op(group, y, x);
-   }
-
-/*
-* NR_Core Copy Constructor
-*/
-NR_Core::NR_Core(const NR_Core& core)
-   {
-   op = 0;
-   if(core.op)
-      op = core.op->clone();
-   }
-
-/*
-* NR_Core Assignment Operator
-*/
-NR_Core& NR_Core::operator=(const NR_Core& core)
-   {
-   delete op;
-   if(core.op)
-      op = core.op->clone();
-   return (*this);
-   }
-
-/*
-* NR Verification Operation
-*/
-SecureVector<byte> NR_Core::verify(const byte in[], u32bit length) const
-   {
-   return op->verify(in, length);
-   }
-
-/*
-* NR Signature Operation
-*/
-SecureVector<byte> NR_Core::sign(const byte in[], u32bit length,
-                                 const BigInt& k) const
-   {
-   return op->sign(in, length, k);
-   }
-
-}
diff --git a/src/pubkey/nr/nr_core.h b/src/pubkey/nr/nr_core.h
deleted file mode 100644
index 483773622..000000000
--- a/src/pubkey/nr/nr_core.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
-* NR Core
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#ifndef BOTAN_NR_CORE_H__
-#define BOTAN_NR_CORE_H__
-
-#include <botan/nr_op.h>
-#include <botan/dl_group.h>
-
-namespace Botan {
-
-/*
-* NR Core
-*/
-class BOTAN_DLL NR_Core
-   {
-   public:
-      SecureVector<byte> sign(const byte[], u32bit, const BigInt&) const;
-      SecureVector<byte> verify(const byte[], u32bit) const;
-
-      NR_Core& operator=(const NR_Core&);
-
-      NR_Core() { op = 0; }
-      NR_Core(const NR_Core&);
-      NR_Core(const DL_Group&, const BigInt&, const BigInt& = 0);
-      ~NR_Core() { delete op; }
-   private:
-      NR_Operation* op;
-   };
-
-}
-
-#endif
diff --git a/src/pubkey/nr/nr_op.cpp b/src/pubkey/nr/nr_op.cpp
deleted file mode 100644
index b5efa3d37..000000000
--- a/src/pubkey/nr/nr_op.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
-* NR Operations
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/nr_op.h>
-
-namespace Botan {
-
-/*
-* Default_NR_Op Constructor
-*/
-Default_NR_Op::Default_NR_Op(const DL_Group& grp, const BigInt& y1,
-                             const BigInt& x1) : x(x1), y(y1), group(grp)
-   {
-   powermod_g_p = Fixed_Base_Power_Mod(group.get_g(), group.get_p());
-   powermod_y_p = Fixed_Base_Power_Mod(y, group.get_p());
-   mod_p = Modular_Reducer(group.get_p());
-   mod_q = Modular_Reducer(group.get_q());
-   }
-
-/*
-* Default NR Verify Operation
-*/
-SecureVector<byte> Default_NR_Op::verify(const byte in[], u32bit length) const
-   {
-   const BigInt& q = group.get_q();
-
-   if(length != 2*q.bytes())
-      return false;
-
-   BigInt c(in, q.bytes());
-   BigInt d(in + q.bytes(), q.bytes());
-
-   if(c.is_zero() || c >= q || d >= q)
-      throw Invalid_Argument("Default_NR_Op::verify: Invalid signature");
-
-   BigInt i = mod_p.multiply(powermod_g_p(d), powermod_y_p(c));
-   return BigInt::encode(mod_q.reduce(c - i));
-   }
-
-/*
-* Default NR Sign Operation
-*/
-SecureVector<byte> Default_NR_Op::sign(const byte in[], u32bit length,
-                                       const BigInt& k) const
-   {
-   if(x == 0)
-      throw Internal_Error("Default_NR_Op::sign: No private key");
-
-   const BigInt& q = group.get_q();
-
-   BigInt f(in, length);
-
-   if(f >= q)
-      throw Invalid_Argument("Default_NR_Op::sign: Input is out of range");
-
-   BigInt c = mod_q.reduce(powermod_g_p(k) + f);
-   if(c.is_zero())
-      throw Internal_Error("Default_NR_Op::sign: c was zero");
-   BigInt d = mod_q.reduce(k - x * c);
-
-   SecureVector<byte> output(2*q.bytes());
-   c.binary_encode(output + (output.size() / 2 - c.bytes()));
-   d.binary_encode(output + (output.size() - d.bytes()));
-   return output;
-   }
-
-}
diff --git a/src/pubkey/nr/nr_op.h b/src/pubkey/nr/nr_op.h
deleted file mode 100644
index cba1465f2..000000000
--- a/src/pubkey/nr/nr_op.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
-* NR Operations
-* (C) 1999-2008 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#ifndef BOTAN_NR_OPS_H__
-#define BOTAN_NR_OPS_H__
-
-#include <botan/pow_mod.h>
-#include <botan/numthry.h>
-#include <botan/reducer.h>
-#include <botan/dl_group.h>
-
-namespace Botan {
-
-/*
-* NR Operation
-*/
-class BOTAN_DLL NR_Operation
-   {
-   public:
-      virtual SecureVector<byte> verify(const byte[], u32bit) const = 0;
-      virtual SecureVector<byte> sign(const byte[], u32bit,
-                                      const BigInt&) const = 0;
-      virtual NR_Operation* clone() const = 0;
-      virtual ~NR_Operation() {}
-   };
-
-/*
-* Botan's Default NR Operation
-*/
-class BOTAN_DLL Default_NR_Op : public NR_Operation
-   {
-   public:
-      SecureVector<byte> verify(const byte[], u32bit) const;
-      SecureVector<byte> sign(const byte[], u32bit, const BigInt&) const;
-
-      NR_Operation* clone() const { return new Default_NR_Op(*this); }
-
-      Default_NR_Op(const DL_Group&, const BigInt&, const BigInt&);
-   private:
-      const BigInt x, y;
-      const DL_Group group;
-      Fixed_Base_Power_Mod powermod_g_p, powermod_y_p;
-      Modular_Reducer mod_p, mod_q;
-   };
-
-
-}
-
-#endif