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-rw-r--r--botan/src/pubkey/nr/nr_op.cpp71
1 files changed, 0 insertions, 71 deletions
diff --git a/botan/src/pubkey/nr/nr_op.cpp b/botan/src/pubkey/nr/nr_op.cpp
deleted file mode 100644
index b5efa3d..0000000
--- a/botan/src/pubkey/nr/nr_op.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
-* NR Operations
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/nr_op.h>
-
-namespace Botan {
-
-/*
-* Default_NR_Op Constructor
-*/
-Default_NR_Op::Default_NR_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 NR Verify Operation
-*/
-SecureVector<byte> Default_NR_Op::verify(const byte in[], u32bit length) const
- {
- const BigInt& q = group.get_q();
-
- if(length != 2*q.bytes())
- return false;
-
- BigInt c(in, q.bytes());
- BigInt d(in + q.bytes(), q.bytes());
-
- if(c.is_zero() || c >= q || d >= q)
- throw Invalid_Argument("Default_NR_Op::verify: Invalid signature");
-
- BigInt i = mod_p.multiply(powermod_g_p(d), powermod_y_p(c));
- return BigInt::encode(mod_q.reduce(c - i));
- }
-
-/*
-* Default NR Sign Operation
-*/
-SecureVector<byte> Default_NR_Op::sign(const byte in[], u32bit length,
- const BigInt& k) const
- {
- if(x == 0)
- throw Internal_Error("Default_NR_Op::sign: No private key");
-
- const BigInt& q = group.get_q();
-
- BigInt f(in, length);
-
- if(f >= q)
- throw Invalid_Argument("Default_NR_Op::sign: Input is out of range");
-
- BigInt c = mod_q.reduce(powermod_g_p(k) + f);
- if(c.is_zero())
- throw Internal_Error("Default_NR_Op::sign: c was zero");
- BigInt d = mod_q.reduce(k - x * c);
-
- SecureVector<byte> output(2*q.bytes());
- c.binary_encode(output + (output.size() / 2 - c.bytes()));
- d.binary_encode(output + (output.size() - d.bytes()));
- return output;
- }
-
-}