User device and method of providing notification in messaging application on user device

A method of providing notification of a call received in a messaging application loaded on a user device, the user device comprising:

• a display;
• computer storage configured to store:
• the messaging application for effecting a secure messaging session between the user device and at least one remote device, via a network and a messaging server;
• and an encrypted database of data associated with the messaging application;
• a processor configured to execute the messaging application;
• a key store storing an authorization token to be used by the messaging application;
• the messaging application having a launched state and an unlaunched state, and on transitioning from the unlaunched state to the launched state the messaging application is configured to cause the database to be decrypted and to store the authorization token in volatile memory, and on transitioning from the launched state to the unlaunched state the messaging application causes the database to be encrypted and the authorization token deleted from the volatile memory;
• the method comprising:
• if the messaging application is in the unlaunched state, on receipt of an incoming call from the messaging server, retrieving the authorization token from the key store to perform communication with the messaging server, and displaying a notification of the incoming call, without contact information, on the display of the user device;
• and
• if the messaging application is in the launched state, on receipt of an incoming call from the messaging server, retrieving the authorization token from the volatile memory to perform communication with the messaging server, and displaying a notification of the incoming call, and contact information for the calling party, on the display of the user device.

A computer program product comprising a messaging application stored on a tangible computer readable storage medium and configured when executed on a processor of a user device to effect a secure messaging session between the user device and at least one remote device via a network and a messaging server, the messaging application having a launched state and an unlaunched state, and on transitioning from the unlaunched state to the launched state the messaging application is configured to cause an encrypted database of data, associated with the messaging application and stored on the user device, to be decrypted and to store the authorization token in a volatile memory of the user device, and on transitioning from the launched state to the unlaunched state the messaging application is configured to cause the database to be encrypted and the authorization token to be deleted from the volatile memory;

• wherein the messaging application is configured, in the unlaunched state, on receipt of an incoming call from the messaging server, to retrieve the authorization token from the key store to perform communication with the messaging server, and to display a notification of the incoming call on a display of the user device;
• and
• wherein the messaging application is configured, in the launched state, on receipt of an incoming call from the messaging server, to retrieve the authorization token from the volatile memory to perform communication with the messaging server, and to display a notification of the incoming call, and contact information for the calling party, on a display of the user device.

A user device comprising:

• a display;
• computer storage configured to store:
• a messaging application for effecting a secure messaging session between the user device and at least one remote device, via a network and a messaging server;
• and an encrypted database of data associated with the messaging application;
• a processor configured to execute the messaging application;
• a key store storing an authorization token to be used by the messaging application;
• the messaging application having a launched state and an unlaunched state, and on transitioning from the unlaunched state to the launched state the messaging application is configured to cause the database to be decrypted and to store the authorizaion token in volatile memory, and on transitioning from the launched state to the unlaunched state the messaging application causes the database to be encrypted and the authorization token deleted from the volatile memory;
• wherein the messaging application is configured, in the unlaunched state, on receipt of an incoming message from the messaging server, to retrieve the authorization token from the key store to perform communication with the messaging server, and to display a notification of the incoming message on the display of the user device without contact information and without a message preview;
• and
• wherein the messaging application is configured, in the launched state, on receipt of an incoming message from the messaging server, to retrieve the authorization token from the volatile memory to perform communication with the messaging server, and to display a notification of the incoming message, contact information for a messaging party, and the message preview, on the display of the user device.