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**********************************************************************
* SYNOPSIS
**********************************************************************
RSABreaker is a command line tool to break RSA keys.
It is written in Java and uses Wiener's attack.

RSA consists in finding a public key (n,e) and a private key (n,d) such that
     n=p.q
and
     e.d=1 mod (p-1)(q-1)
Given (n,e) this tool can find d, i.e. the private key (n,d).
The algorithm is based on Wiener's attack and is applicable if d<n^(1/4).

**********************************************************************
* INSTALLATION
**********************************************************************
1)from compiled jar:
--------------------
$wget https://github.com/Fengtan/rsa-breaker/raw/master/dist/RSABreaker.jar

execution:
  $java -jar RSABreaker.jar

2)from sources:
-------------------
$git clone https://github.com/Fengtan/rsa-breaker.git rsa-breaker
$cd  rsa-breaker/
$javac src/*.java -d class/
$jar cvfm dist/RSABreaker.jar MANIFEST.MF -C class/ .

execution:
  $java -jar dist/RSABreaker.jar
or:
  $java -cp class/ RSABreaker

**********************************************************************
* TEST CASES
**********************************************************************
Test files are in /test
They can be edited with any hex editor, for instance XVI32

#using input numbers in files:
$java -jar RSABreaker.jar -e=test/e1 -n=test/n1

#using input numbers on CLI:
$java -jar RSABreaker.jar -e=2621 -n=8927

#output in a file:
$java -jar RSABreaker.jar -e=2621 -n=8927 -out=./out

#verbose mode:
$java -jar RSABreaker.jar -e=2621 -n=8927 -v

**********************************************************************
* LICENSE
**********************************************************************
MIT License: www.opensource.org/licenses/mit-license.php

Copyright (c) 2010 Fengtan<https://github.com/Fengtan/>

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.