F-secure Oyj

Ari Hyppönen

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.

Method and system for backing up encryption key generated on computer device and accessing encrypted information stored on computer device

A method of generating or entering a password or passphrase on a computer system. The method comprises storing a plurality of sets of values in a memoryof the system, the values of each set defining respective elements which belong to a common domain, the domains of respective sets being distinct from one another, selecting at least one value from each stored set or from each of a plurality of the stored sets, and combining the selected values or elements thereof to form a password or passphrase.

Method and apparatus for selecting a password

A method of managing a virus signature database associated with an anti-virus application, both of which are resident in a memory of a mobile wireless deviceManagement messages containing for example new virus signatures are sent from the networkto the deviceIn accordance with instructions contained in the management messages, individual signature entries of the virus signature database are deleted or replaced, and new signatures added.

Maintaining virus detection software

A method of securing data stored on an electronic devicethe method comprising encrypting the data using a cryptographic key derivable from or accessed using a passphrase, requiring the entry into the device of the passphrase when a user wishes to access the data, subsequently inhibiting access to the data whilst the deviceremains active, and requiring the entry into the device of a predefined password when a user wishes to access the data, the password being different from the passphrase.

Growing community of inventors

Degerby, Finland

Ari Hyppönen