hiteksoftware.com

[melvin]

Are you trying to Encrypt or decrypt or [decrypt and verify]?

Do you want to decrypt files that the sender has encrypted and sent you?
If yes, then that file has to be encrypted with YOUR public key which you have sent to the Sender. You would use your own Private key to decrypt the file.

If the sender has encrypted and signed.. It means sender encrypted using your public key and signed using senders private key. To decrypt such a file, you would need:
your private key to decrypt
and
senders public key to verify
To do this, you would create a decrypt and verify profile..

[melvin]

To encrypt a file that you want to send to someone, you should encrypt it with the Recipients public key . Use Encryption profile (needs recipients public key only) and encryption task. Then email/ftp etc.. the file to the recipient. Only the recipient can decrypt this file using his private key. Normally, this is sufficient for majority of the uses.

However, if the recipient also wants to verify that the file was sent by you and not by someone else.. then you should also sign the file. In this case, use the "Encrypt and Sign" profile. Here you have to enter Recipients public key and Sender (your) private key. The encrypt and sign is done automatically within the same task .

The online demo:
http://www.hiteksoftware.com/demo/pgpkey_encryption_mixed.html

tutorials:
http://gdp.globus.org/gt4-tutorial/multiplehtml/ch09s02.html
http://gdp.globus.org/gt4-tutorial/multiplehtml/ch09s03.html