1 files changed, 0 insertions, 157 deletions
diff --git a/botan/src/math/numbertheory/pow_mod.cpp b/botan/src/math/numbertheory/pow_mod.cpp
deleted file mode 100644
index fd9b8e9..0000000
--- a/botan/src/math/numbertheory/pow_mod.cpp
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
-* Modular Exponentiation Proxy
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/pow_mod.h>
-#include <botan/pk_engine.h>
-
-namespace Botan {
-
-/*
-* Power_Mod Constructor
-*/
-Power_Mod::Power_Mod(const BigInt& n, Usage_Hints hints)
-   {
-   core = 0;
-   set_modulus(n, hints);
-   }
-
-/*
-* Power_Mod Copy Constructor
-*/
-Power_Mod::Power_Mod(const Power_Mod& other)
-   {
-   core = 0;
-   if(other.core)
-      core = other.core->copy();
-   }
-
-/*
-* Power_Mod Assignment Operator
-*/
-Power_Mod& Power_Mod::operator=(const Power_Mod& other)
-   {
-   delete core;
-   core = 0;
-   if(other.core)
-      core = other.core->copy();
-   return (*this);
-   }
-
-/*
-* Power_Mod Destructor
-*/
-Power_Mod::~Power_Mod()
-   {
-   delete core;
-   }
-
-/*
-* Set the modulus
-*/
-void Power_Mod::set_modulus(const BigInt& n, Usage_Hints hints) const
-   {
-   delete core;
-   core = ((n == 0) ? 0 : Engine_Core::mod_exp(n, hints));
-   }
-
-/*
-* Set the base
-*/
-void Power_Mod::set_base(const BigInt& b) const
-   {
-   if(b.is_zero() || b.is_negative())
-      throw Invalid_Argument("Power_Mod::set_base: arg must be > 0");
-
-   if(!core)
-      throw Internal_Error("Power_Mod::set_base: core was NULL");
-   core->set_base(b);
-   }
-
-/*
-* Set the exponent
-*/
-void Power_Mod::set_exponent(const BigInt& e) const
-   {
-   if(e.is_negative())
-      throw Invalid_Argument("Power_Mod::set_exponent: arg must be > 0");
-
-   if(!core)
-      throw Internal_Error("Power_Mod::set_exponent: core was NULL");
-   core->set_exponent(e);
-   }
-
-/*
-* Compute the result
-*/
-BigInt Power_Mod::execute() const
-   {
-   if(!core)
-      throw Internal_Error("Power_Mod::execute: core was NULL");
-   return core->execute();
-   }
-
-namespace {
-
-/*
-* Choose potentially useful hints
-*/
-Power_Mod::Usage_Hints choose_base_hints(const BigInt& b, const BigInt& n)
-   {
-   if(b == 2)
-      return Power_Mod::Usage_Hints(Power_Mod::BASE_IS_2 |
-                                    Power_Mod::BASE_IS_SMALL);
-
-   const u32bit b_bits = b.bits();
-   const u32bit n_bits = n.bits();
-
-   if(b_bits < n_bits / 32)
-      return Power_Mod::BASE_IS_SMALL;
-   if(b_bits > n_bits / 4)
-      return Power_Mod::BASE_IS_LARGE;
-
-   return Power_Mod::NO_HINTS;
-   }
-
-/*
-* Choose potentially useful hints
-*/
-Power_Mod::Usage_Hints choose_exp_hints(const BigInt& e, const BigInt& n)
-   {
-   const u32bit e_bits = e.bits();
-   const u32bit n_bits = n.bits();
-
-   if(e_bits < n_bits / 32)
-      return Power_Mod::BASE_IS_SMALL;
-   if(e_bits > n_bits / 4)
-      return Power_Mod::BASE_IS_LARGE;
-   return Power_Mod::NO_HINTS;
-   }
-
-}
-
-/*
-* Fixed_Exponent_Power_Mod Constructor
-*/
-Fixed_Exponent_Power_Mod::Fixed_Exponent_Power_Mod(const BigInt& e,
-                                                   const BigInt& n,
-                                                   Usage_Hints hints) :
-   Power_Mod(n, Usage_Hints(hints | EXP_IS_FIXED | choose_exp_hints(e, n)))
-   {
-   set_exponent(e);
-   }
-
-/*
-* Fixed_Base_Power_Mod Constructor
-*/
-Fixed_Base_Power_Mod::Fixed_Base_Power_Mod(const BigInt& b, const BigInt& n,
-                                           Usage_Hints hints) :
-   Power_Mod(n, Usage_Hints(hints | BASE_IS_FIXED | choose_base_hints(b, n)))
-   {
-   set_base(b);
-   }
-
-}