Setting up a provider

Question

Hi there!
I am trying to use the RSA algorithm to generate a keyPair. I am then using that public key f that keyPair to initialize a Cipher object. BUt htis is not working because I am getting an error saying
"java.security.NoSuchAlgorithmException: Cannot find any provider supporting RSA
     at javax.crypto.Cipher.getInstance(DashoA6275)"
How do I go about setting up the provider for RSA. Also I have posted part of my code below because I would like to know if what I am doing is actually possible.
1. I set up a KeyPair with RSA
2. I get an instance of a Cipher with RSA an then initialize the Cipher object with RSA.
3. I create a SealedObject with this cipher
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
kpg.initialize(1024);
kp = kpg.generateKeyPair();
Cipher encipher = Cipher.getInstance("RSA");
encipher.init(Cipher.ENCRYPT_MODE, kp.getPublic());
SealedObject sealedObject = new SealedObject(vote, encipher);Thanks for your help,
B

Answer 1

Trying to use DES. Getting similar error:
java.security.NoSuchAlgorithmException: Cannot find any provider supporting DES
at javax.crypto.Cipher.getInstance(DashoA6275)
I have SUN's classes loaded on to system. As per the documenation, it should have DES supported.
Code:
Provider providers[]=Security.getProviders();
if(providers == null)
System.out.println("No Providers Installed!!!");
return;
int nSize = providers.length;
for(int i=0;i < nSize; i++)
System.out.println(providers.toString());
java.security.Security.addProvider(new com.sun.crypto.provider.SunJCE());
Cipher cipher = Cipher.getInstance("DES");
SecretKey key = KeyGenerator.getInstance("DES").generateKey();
SUN version 1.2
SunRsaSign version 1.0
java.security.NoSuchAlgorithmException: Cannot find any provider supporting DES
at javax.crypto.Cipher.getInstance(DashoA6275)
In java.security, I have following entries:
security.provider.1=sun.security.provider.Sun
security.provider.2=com.sun.rsajca.Provider
Pls help..