1 files changed, 0 insertions, 73 deletions
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;
-   }
-
-}