Download existing EC2 key pair

I am playing around with Amazon EC2 and have (finally) managed to SSH into the box from my home machine. Now I want to connect from my work machine but neglected to copy the key pair on a USB key.

Is there a way of downloading an existing key pair WITHOUT dropping the instance?

Thanks

As far as I know, private key can only be retrieved at the time you create the keypair (via EC2 web management console or via API commandline).

So you have to save the private key somewhere and be able to retrieve it at work in order to connect to the instance via SSH, since keypairs' public keys are automatically installed on EC2 servers when you launch them.

Hope that helps.

Agree with Fran, only other way to login via SSH would be to enable password authentication on the instance and login via ssh using username/password.

You may be able to do this from the console access within the AWS web interface.