1 files changed, 0 insertions, 143 deletions
diff --git a/src/pubkey/dsa/dsa.cpp b/src/pubkey/dsa/dsa.cpp
deleted file mode 100644
index 5d56d6b89..000000000
--- a/src/pubkey/dsa/dsa.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
-* DSA
-* (C) 1999-2010 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/dsa.h>
-#include <botan/numthry.h>
-#include <botan/keypair.h>
-#include <future>
-namespace Botan {
-
-/*
-* DSA_PublicKey Constructor
-*/
-DSA_PublicKey::DSA_PublicKey(const DL_Group& grp, const BigInt& y1)
-   {
-   group = grp;
-   y = y1;
-   }
-
-/*
-* Create a DSA private key
-*/
-DSA_PrivateKey::DSA_PrivateKey(RandomNumberGenerator& rng,
-                               const DL_Group& grp,
-                               const BigInt& x_arg)
-   {
-   group = grp;
-   x = x_arg;
-
-   if(x == 0)
-      x = BigInt::random_integer(rng, 2, group_q() - 1);
-
-   y = power_mod(group_g(), x, group_p());
-
-   if(x_arg == 0)
-      gen_check(rng);
-   else
-      load_check(rng);
-   }
-
-DSA_PrivateKey::DSA_PrivateKey(const AlgorithmIdentifier& alg_id,
-                               const secure_vector<byte>& key_bits,
-                               RandomNumberGenerator& rng) :
-   DL_Scheme_PrivateKey(alg_id, key_bits, DL_Group::ANSI_X9_57)
-   {
-   y = power_mod(group_g(), x, group_p());
-
-   load_check(rng);
-   }
-
-/*
-* Check Private DSA Parameters
-*/
-bool DSA_PrivateKey::check_key(RandomNumberGenerator& rng, bool strong) const
-   {
-   if(!DL_Scheme_PrivateKey::check_key(rng, strong) || x >= group_q())
-      return false;
-
-   if(!strong)
-      return true;
-
-   return KeyPair::signature_consistency_check(rng, *this, "EMSA1(SHA-1)");
-   }
-
-DSA_Signature_Operation::DSA_Signature_Operation(const DSA_PrivateKey& dsa) :
-   q(dsa.group_q()),
-   x(dsa.get_x()),
-   powermod_g_p(dsa.group_g(), dsa.group_p()),
-   mod_q(dsa.group_q())
-   {
-   }
-
-secure_vector<byte>
-DSA_Signature_Operation::sign(const byte msg[], size_t msg_len,
-                              RandomNumberGenerator& rng)
-   {
-   rng.add_entropy(msg, msg_len);
-
-   BigInt i(msg, msg_len);
-   BigInt r = 0, s = 0;
-
-   while(r == 0 || s == 0)
-      {
-      BigInt k;
-      do
-         k.randomize(rng, q.bits());
-      while(k >= q);
-
-      auto future_r = std::async(std::launch::async,
-                            [&]() { return mod_q.reduce(powermod_g_p(k)); });
-
-      s = inverse_mod(k, q);
-      r = future_r.get();
-      s = mod_q.multiply(s, mul_add(x, r, i));
-      }
-
-   secure_vector<byte> output(2*q.bytes());
-   r.binary_encode(&output[output.size() / 2 - r.bytes()]);
-   s.binary_encode(&output[output.size() - s.bytes()]);
-   return output;
-   }
-
-DSA_Verification_Operation::DSA_Verification_Operation(const DSA_PublicKey& dsa) :
-   q(dsa.group_q()), y(dsa.get_y())
-   {
-   powermod_g_p = Fixed_Base_Power_Mod(dsa.group_g(), dsa.group_p());
-   powermod_y_p = Fixed_Base_Power_Mod(y, dsa.group_p());
-   mod_p = Modular_Reducer(dsa.group_p());
-   mod_q = Modular_Reducer(dsa.group_q());
-   }
-
-bool DSA_Verification_Operation::verify(const byte msg[], size_t msg_len,
-                                        const byte sig[], size_t sig_len)
-   {
-   const BigInt& q = mod_q.get_modulus();
-
-   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);
-
-   auto future_s_i = std::async(std::launch::async,
-      [&]() { return powermod_g_p(mod_q.multiply(s, i)); });
-
-   BigInt s_r = powermod_y_p(mod_q.multiply(s, r));
-   BigInt s_i = future_s_i.get();
-
-   s = mod_p.multiply(s_i, s_r);
-
-   return (mod_q.reduce(s) == r);
-   }
-
-}