Mark repository as deprecatedHEADmaster

1 files changed, 0 insertions, 174 deletions

diff --git a/botan/src/block/idea/idea.cpp b/botan/src/block/idea/idea.cpp
deleted file mode 100644
index 5bbe470..0000000
--- a/botan/src/block/idea/idea.cpp
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
-* IDEA
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/idea.h>
-#include <botan/loadstor.h>
-
-namespace Botan {
-
-namespace {
-
-/*
-* Multiplication modulo 65537
-*/
-inline u16bit mul(u16bit x, u16bit y)
-   {
-   if(x && y)
-      {
-      u32bit T = static_cast<u32bit>(x) * y;
-      x = static_cast<u16bit>(T >> 16);
-      y = static_cast<u16bit>(T & 0xFFFF);
-      return static_cast<u16bit>(y - x + ((y < x) ? 1 : 0));
-      }
-   else
-      return static_cast<u16bit>(1 - x - y);
-   }
-
-/*
-* Find multiplicative inverses modulo 65537
-*/
-u16bit mul_inv(u16bit x)
-   {
-   if(x <= 1)
-      return x;
-
-   u16bit t0 = static_cast<u16bit>(65537 / x), t1 = 1;
-   u16bit y = static_cast<u16bit>(65537 % x);
-
-   while(y != 1)
-      {
-      u16bit q = x / y;
-      x %= y;
-      t1 += q * t0;
-
-      if(x == 1)
-         return t1;
-
-      q = y / x;
-      y %= x;
-      t0 += q * t1;
-      }
-   return (1 - t0);
-   }
-
-}
-
-/*
-* IDEA Encryption
-*/
-void IDEA::enc(const byte in[], byte out[]) const
-   {
-   u16bit X1 = load_be<u16bit>(in, 0);
-   u16bit X2 = load_be<u16bit>(in, 1);
-   u16bit X3 = load_be<u16bit>(in, 2);
-   u16bit X4 = load_be<u16bit>(in, 3);
-
-   for(u32bit j = 0; j != 8; ++j)
-      {
-      X1 = mul(X1, EK[6*j+0]);
-      X2 += EK[6*j+1];
-      X3 += EK[6*j+2];
-      X4 = mul(X4, EK[6*j+3]);
-
-      u16bit T0 = X3;
-      X3 = mul(X3 ^ X1, EK[6*j+4]);
-
-      u16bit T1 = X2;
-      X2 = mul((X2 ^ X4) + X3, EK[6*j+5]);
-      X3 += X2;
-
-      X1 ^= X2;
-      X4 ^= X3;
-      X2 ^= T0;
-      X3 ^= T1;
-      }
-
-   X1  = mul(X1, EK[48]);
-   X2 += EK[50];
-   X3 += EK[49];
-   X4  = mul(X4, EK[51]);
-
-   store_be(out, X1, X3, X2, X4);
-   }
-
-/*
-* IDEA Decryption
-*/
-void IDEA::dec(const byte in[], byte out[]) const
-   {
-   u16bit X1 = load_be<u16bit>(in, 0);
-   u16bit X2 = load_be<u16bit>(in, 1);
-   u16bit X3 = load_be<u16bit>(in, 2);
-   u16bit X4 = load_be<u16bit>(in, 3);
-
-   for(u32bit j = 0; j != 8; ++j)
-      {
-      X1 = mul(X1, DK[6*j+0]);
-      X2 += DK[6*j+1];
-      X3 += DK[6*j+2];
-      X4 = mul(X4, DK[6*j+3]);
-
-      u16bit T0 = X3;
-      X3 = mul(X3 ^ X1, DK[6*j+4]);
-
-      u16bit T1 = X2;
-      X2 = mul((X2 ^ X4) + X3, DK[6*j+5]);
-      X3 += X2;
-
-      X1 ^= X2;
-      X4 ^= X3;
-      X2 ^= T0;
-      X3 ^= T1;
-      }
-
-   X1  = mul(X1, DK[48]);
-   X2 += DK[50];
-   X3 += DK[49];
-   X4  = mul(X4, DK[51]);
-
-   store_be(out, X1, X3, X2, X4);
-   }
-
-/*
-* IDEA Key Schedule
-*/
-void IDEA::key_schedule(const byte key[], u32bit)
-   {
-   for(u32bit j = 0; j != 8; ++j)
-      EK[j] = load_be<u16bit>(key, j);
-
-   for(u32bit j = 1, k = 8, offset = 0; k != 52; j %= 8, ++j, ++k)
-      {
-      EK[j+7+offset] = static_cast<u16bit>((EK[(j     % 8) + offset] << 9) |
-                                           (EK[((j+1) % 8) + offset] >> 7));
-      offset += (j == 8) ? 8 : 0;
-      }
-
-   DK[51] = mul_inv(EK[3]);
-   DK[50] = -EK[2];
-   DK[49] = -EK[1];
-   DK[48] = mul_inv(EK[0]);
-
-   for(u32bit j = 1, k = 4, counter = 47; j != 8; ++j, k += 6)
-      {
-      DK[counter--] = EK[k+1];
-      DK[counter--] = EK[k];
-      DK[counter--] = mul_inv(EK[k+5]);
-      DK[counter--] = -EK[k+3];
-      DK[counter--] = -EK[k+4];
-      DK[counter--] = mul_inv(EK[k+2]);
-      }
-
-   DK[5] = EK[47];
-   DK[4] = EK[46];
-   DK[3] = mul_inv(EK[51]);
-   DK[2] = -EK[50];
-   DK[1] = -EK[49];
-   DK[0] = mul_inv(EK[48]);
-   }
-
-}