1 files changed, 1 insertions, 39 deletions
diff --git a/src/math/numbertheory/powm_fw.cpp b/src/math/numbertheory/powm_fw.cpp
index 1cfcdcd66..68dabc332 100644
--- a/src/math/numbertheory/powm_fw.cpp
+++ b/src/math/numbertheory/powm_fw.cpp
@@ -11,44 +11,6 @@
 
 namespace Botan {
 
-namespace {
-
-/*
-* Try to choose a good window size
-*/
-u32bit fw_powm_window_bits(u32bit exp_bits, u32bit,
-                           Power_Mod::Usage_Hints hints)
-   {
-   static const u32bit wsize[][2] = {
-      { 2048, 7 }, { 1024, 6 }, { 256, 5 }, { 128, 4 }, { 64, 3 }, { 0, 0 }
-   };
-
-   u32bit window_bits = 3;
-
-   if(exp_bits)
-      {
-      for(u32bit j = 0; wsize[j][0]; ++j)
-         {
-         if(exp_bits >= wsize[j][0])
-            {
-            window_bits += wsize[j][1];
-            break;
-            }
-         }
-      }
-
-   if(hints & Power_Mod::EXP_IS_FIXED)
-      window_bits += 2;
-   if(hints & Power_Mod::EXP_IS_LARGE)
-      window_bits += 2;
-   if(hints & Power_Mod::BASE_IS_FIXED)
-      ++window_bits;
-
-   return window_bits;
-   }
-
-}
-
 /*
 * Set the exponent
 */
@@ -62,7 +24,7 @@ void Fixed_Window_Exponentiator::set_exponent(const BigInt& e)
 */
 void Fixed_Window_Exponentiator::set_base(const BigInt& base)
    {
-   window_bits = fw_powm_window_bits(exp.bits(), base.bits(), hints);
+   window_bits = Power_Mod::window_bits(exp.bits(), base.bits(), hints);
 
    g.resize((1 << window_bits) - 1);
    g[0] = base;