public key encryption

[Ravikumar Jambunathan]

i have been given a task for doing pubilc key encryption during electronic file trasmission. Have anybody done such program using jave, if yes pl. send me your suggestions and tips which will be useful for me.
thanks for your time.
regards,
ravi

[Thomas Paul]

Moving to security

[Jon Eaves]

If you look at www.bouncycastle.org, you will find a JCE compatible provider and source code.
There is also a lot of examples and test code that shows how to perform many cryptographic operations.
If you join the mailing list, you'll find many people willing and able to help.