LockMagic
LockMagic enables users to access and share encrypted files using e-mail addresses
With LockMagic, users may share and access encrypted files using email addresses without of having to write down or remember passwords. Your files are automatically compressed and encrypted when you use LockMagic to safeguard them, so you don't need to alter the way you work. The best part is that you may access them from anywhere at any time using your current email address and password. To share and safeguard encrypted files, use Gmail, Live ID, or Open ID (Yahoo, AOL, Verisign, MyOpenId) email accounts. Encrypt your email attachments and make encrypted backups that you may save on a flash drive, network shares, or online email account.