1 files changed, 0 insertions, 143 deletions
diff --git a/src/pubkey/nr/nr.cpp b/src/pubkey/nr/nr.cpp
deleted file mode 100644
index 87cf3d038..000000000
--- a/src/pubkey/nr/nr.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
-* Nyberg-Rueppel
-* (C) 1999-2010 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/nr.h>
-#include <botan/numthry.h>
-#include <botan/keypair.h>
-#include <future>
-
-namespace Botan {
-
-NR_PublicKey::NR_PublicKey(const AlgorithmIdentifier& alg_id,
-                           const secure_vector<byte>& key_bits) :
-   DL_Scheme_PublicKey(alg_id, key_bits, DL_Group::ANSI_X9_57)
-   {
-   }
-
-/*
-* NR_PublicKey Constructor
-*/
-NR_PublicKey::NR_PublicKey(const DL_Group& grp, const BigInt& y1)
-   {
-   group = grp;
-   y = y1;
-   }
-
-/*
-* Create a NR private key
-*/
-NR_PrivateKey::NR_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);
-   }
-
-NR_PrivateKey::NR_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 Nyberg-Rueppel Parameters
-*/
-bool NR_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)");
-   }
-
-NR_Signature_Operation::NR_Signature_Operation(const NR_PrivateKey& nr) :
-   q(nr.group_q()),
-   x(nr.get_x()),
-   powermod_g_p(nr.group_g(), nr.group_p()),
-   mod_q(nr.group_q())
-   {
-   }
-
-secure_vector<byte>
-NR_Signature_Operation::sign(const byte msg[], size_t msg_len,
-                             RandomNumberGenerator& rng)
-   {
-   rng.add_entropy(msg, msg_len);
-
-   BigInt f(msg, msg_len);
-
-   if(f >= q)
-      throw Invalid_Argument("NR_Signature_Operation: Input is out of range");
-
-   BigInt c, d;
-
-   while(c == 0)
-      {
-      BigInt k;
-      do
-         k.randomize(rng, q.bits());
-      while(k >= q);
-
-      c = mod_q.reduce(powermod_g_p(k) + f);
-      d = mod_q.reduce(k - x * c);
-      }
-
-   secure_vector<byte> output(2*q.bytes());
-   c.binary_encode(&output[output.size() / 2 - c.bytes()]);
-   d.binary_encode(&output[output.size() - d.bytes()]);
-   return output;
-   }
-
-NR_Verification_Operation::NR_Verification_Operation(const NR_PublicKey& nr) :
-   q(nr.group_q()), y(nr.get_y())
-   {
-   powermod_g_p = Fixed_Base_Power_Mod(nr.group_g(), nr.group_p());
-   powermod_y_p = Fixed_Base_Power_Mod(y, nr.group_p());
-   mod_p = Modular_Reducer(nr.group_p());
-   mod_q = Modular_Reducer(nr.group_q());
-   }
-
-secure_vector<byte>
-NR_Verification_Operation::verify_mr(const byte msg[], size_t msg_len)
-   {
-   const BigInt& q = mod_q.get_modulus();
-
-   if(msg_len != 2*q.bytes())
-      throw Invalid_Argument("NR verification: Invalid signature");
-
-   BigInt c(msg, q.bytes());
-   BigInt d(msg + q.bytes(), q.bytes());
-
-   if(c.is_zero() || c >= q || d >= q)
-      throw Invalid_Argument("NR verification: Invalid signature");
-
-   auto future_y_c = std::async(std::launch::async, powermod_y_p, c);
-   BigInt g_d = powermod_g_p(d);
-
-   BigInt i = mod_p.multiply(g_d, future_y_c.get());
-   return BigInt::encode_locked(mod_q.reduce(c - i));
-   }
-
-}