| 摘要 |
<p>A method of enabling a user of a computer device to back-up an encryption key generated on the device, where the key is used to encrypt stored data, and the key is itself encrypted using a user password for storage on the device. The method comprises rendering the key into a form comprising a reduced length sequence of characters and displaying the reduced length sequence on a display of the device. The user is then able to write down the rendered key. The reduced length sequence may also be sent to a service provider in an SMS message, e-mail, or by voice dictation. In the event that the user password is lost, such that the encrypted key stored on the device cannot be unencrypted, encrypted data may still be accessed by the user entering the rendered key into the device.</p> |
