RSA

My Java implementation of RSA encryption.

Introduction

This program aims to provide the means to encrypt and decrypt files using the RSA algorithm.

How to Use

1. Create an instance of RSAKeyGenerator.
2. Call it's makeKey() method, passing in a constant to specify which kind of key should be returned.
   • RSAKey.PUBLIC_KEY for encrypting
   • RSAKey.PRIVATE_KEY for decrypting
   • RSAKey.COMPLETE_KEY for efficient decryption using the Chinese Remainder Theorum
3. Cast the RSAKey returned to the appropriate type of RSAKey.
   • RSAPublicKey
   • RSAPrivateKey
   • RSACompleteKey
4. Call the key's use() method, passing in the source and destination file paths.
   • the key will perform it's operation on the file specified by source
   • the key will write the result of it's operation to the file specified by destination

Additionally, RSATest now contains a main method for testing. Useage is as follows:

java com.rhg.rsa.RSATest plaintext destination

where plaintext is the path to a readable file, and destination is the prefix to use for storage of files created during the tests.

Version History

2013/8/27

• Fixed and tested the code
• Now contains test class RSATest

2012/12/01

• Commited the project to GitHub unchanged.
• I don't know if it works. It may not be the last version I had, as I'm not even sure when I gave this copy to my friend, as it was almost 2 years ago now.

2010/05/31

• Stoped working on the project.

Author

• Robert Grant