For purposes of patent searching the following description involves an enhanced system that has an e-mail client, policy module, a clear signer and a steganographer. A removable device includes a public key, a private key, and a policy portion. The policy module requires the policy portion for operation such as in decrypting e-mails. The e-mail client encrypts using the private key in conjunction with clear signing with the public key and/or using steganography to mask e-mails. Other validation features are described that can be used before decryption of e-mails occurs.