hcrypto.provider
Class RamProvider

java.lang.Object
  |
  +--hcrypto.provider.Provider
        |
        +--hcrypto.provider.RamProvider

public class RamProvider

extends Provider

This class provides an example of programmer-defined Provider. This provider implements a Caesar cipher. To implement any cipher, the programmer must define an engine, which contains the encryption algorithm, and a key, which contains the associated key for that engine.

To use a provider in an application program, use the static Provider.addProvider() method to add the provider to the list of providers available to the program:

   public static void main (String args[]) throws Exception {
       Provider.addProvider(new DefaultProvider("Default"));
       Provider.addProvider(new RamProvider("Ram"));
       ...
   }
 

Once the program has the provider, its ciphers can be used by the program as follows:

      Cipher cipher = Cipher.getInstance("Caesar", "Ram");
      HistoricalKey key = HistoricalKey.getInstance("Caesar", cipher.getProvider());
      key.init("55/printable");
      cipher.init(key);
      String c1encrypt = cipher.encrypt(secret);
 

In this case an instance of the Caesar cipher implemented by the "Ram" provider will be created. Note that the CaesarEngine class is a subclass of CipherEngine and the CaesarKey class is a subclass of HistoricalKey.

See also:

DefaultProvider
DefaultProvider
CipherEngine
HistoricalKey

Fields inherited from class hcrypto.provider.Provider

DELIMITER, keyTable, name, spiTable

Constructor Summary

RamProvider(java.lang.String name)

Methods inherited from class hcrypto.provider.Provider

addCipher, addCipher, addProvider, getCipherEngine, getCipherEngine, getCipherKeyName, getCipherKeyName, getCipherNames, getName, put

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RamProvider

public RamProvider(java.lang.String name)