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Bouncy castle wrapper

Need to create class wrappers around the encryption types of BouncyCastle [url removed, login to view] For example, need AES, Rinjdael etc AES=AESFastEngineBlowfishEngine RijndaelEngine, SerpentEngine RC4Engine Salsa20Engine ChaChaEngine Create new classes that include initialisation with ParametersAndIV (where appropriate), as well as initialisation given with byte[] for Parameters/IV. Any block encryption Encryption MUST use CBC block chaining, eg: Cipher cipher = [url removed, login to view]("AES/CBC/PKCS5Padding", bouncyProvider); [url removed, login to view](Cipher.ENCRYPT_MODE, secretKeySpec, ivParameterSpec); return [url removed, login to view](inputData); Interface to base your classes on: public abstract class EncryptionSystem { public abstract byte[] encrypt(byte[] inputData); public abstract byte[] encrypt(InputStream inputData); public abstract byte[] decrypt(byte[] inputData); public abstract byte[] decrypt(InputStream inputData); public abstract String algorithm(); //algorithm should give the encryption name } e.g. public class AESEncryption implements EncryptionSystem { public AESEncryption( ParametersWithIV initialisation); public AESEncryption( byte[] key, byte[] iv); //etc } Also require a factory class that will create the above objects public class EncryptionFactory() { EncryptionSystem create( String name, byte[] key, byte[] iv) throws Exception; } -- Please write up a small amount of test code for each of your classes that makes sure that what goes in each encryptor comes successfully out when decryption is run.

Skills: Algorithm, Matlab and Mathematica, Research Writing, SQL, Wireless

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