Display of secure messages on a mobile communication device

• US 20070123307A1
• Filed: 11/30/2005
• Published: 05/31/2007
• Est. Priority Date: 11/30/2005
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Adams, Neil, Little, Herbert, Brown, Michael
• Granted Patent: US 7,840,207 B2
• Time in Patent Office: Days
• US Class Current: 455/566
• CPC Class Codes: H04L 51/214 using selective forwarding
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04L 63/045 wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption cryptographic mechanisms or cryptographic arrangements using a plurality of keys or algorithms H04L9/14
• CPC Class Codes: H04M 1/72436 for text messaging, e.g. short messaging services [SMS] or e-mails

Abstract

A mobile communications device for the display of an incrementally received message includes a message viewer application for scanning the received portions of the message. On determination that the received portion of the message includes a first displayable portion of the message content, the system signals to a message server to halt the message server from forwarding further portions of the message content. The system provides a mechanism for the user of the mobile communications device to cause the mobile communications device to further signal the the message server to recommence the forwarding of further portions of the secure message content to permit the verification of the e-mail based on the further portions of the secure message content.

Claims

1. A method for receiving a message on a mobile communications device, the message comprising a displayable message content portion capable of being viewed on the mobile communications device, the end of the displayable message content portion being identified by a predefined indicator, the method comprising the steps of:

a) receiving a first segment of the message;

b) scanning the first segment for the predefined indicator;

c) if the predefined indicator is not found within the first segment, automatically receiving a further segment of the message; and

d) scanning the further segment of the message for the predefined indicator.

2. The method of claim 1, wherein the first and any further segment is transmitted to the mobile communications device by a server, the method further comprising the step of automatically transmitting a command to the server to transmit a further segment of the message, said step of transmitting a command being executable at any time during the method of claim 1.

3. The method of claim 2, wherein if the step of transmitting a command has not been executed prior to step d), said step is not executed at all if the predefined indicator is found within the first segment prior to step d).

4. The method of claim 2, further comprising the step of automatically transmitting a command to the server to halt transmission of any further segments of the message if the predefined indicator is found within the first segment.

5. The method of claim 4, wherein the step of transmitting a command to halt transmission is executed prior to step d).

6. The method of claim 2, further comprising the step of:

e) if the predefined indicator is not found within the further segment, repeatedly receiving other further segments of the message and scanning said other further segments for the predefined indicator, until said predefined indicator is found within a further segment,

wherein each other further segment is scanned prior to receiving a subsequent further segment.

7. The method of claim 6, wherein the step of transmitting a command to the server to transmit a further segment of the message is executed for each iteration of step e).

8. The method of claim 7, wherein the step of transmitting a command to the server to transmit a further segment of the message is not executed once the predefined indicator is found within a further segment.

9. The method of claim 8, further comprising the step of transmitting a command to the server to halt transmission of any further segments of the message if the predefined indicator is found within a further segment.

10. The method of claim 2 further comprising the step of receiving, at the server, a message comprising a displayable message content portion.

11. The method of claim 10 wherein the message comprises a displayable message content portion and a non-displayable message content portion, such that the displayable message content portion is located within the message before the non-displayable message content portion.

12. The method of claim 11 wherein the displayable message content portion comprises plaintext.

13. The method of claim 1 further comprising the step of transmitting a command to the server to halt transmission of any further segments of the message if the message is determined to be encrypted or signed and encrypted.

14. The method of claim 2 further comprising the step of transmitting a command to the server to transmit the entirety of the message received by the server to the mobile communications device, said step being executable at any time during the method.

15. The method of claim 14, further comprising the steps of receiving the entirety of the message at the mobile communications device and verifying the message.

20. A computer program product comprising code operative to carry out the steps of the method of claim 1.

21. A computer program product comprising code operative to carry out the steps of the method of claim 2.

22. A computer program product comprising code operative to carry out the steps of the method of claim 9.

23. A computer program product comprising code operative to carry out the steps of the method of claim 12.

16. A system for the display of a message receivable on a mobile communications device to a user, the message being automatically incrementally forwarded in segments to the mobile communications device by a message server, the message comprising a message content portion displayable on the mobile communications device, the system comprising:

means adapted to scan received segments of the message to determine if the entirety of a first displayable portion of the message has been received by the mobile communications device; and

means adapted to signal the message server to prevent the automatic incremental forwarding of segments of the message on the determination that the entirety of a first displayable portion has been received.

17. The system of claim 16, wherein the segments are sequentially received by the mobile communications device, and wherein the means adapted to scan received segments of the message to determine if the entirety of a first displayable portion of the message has been received by the mobile communications device are further adapted to scan for a delimiter within the message denoting the end of the first displayable portion.

18. The system of claim 16 wherein the means adapted to signal the message server to prevent the automatic incremental forwarding of segments comprises means to transmit a predefined indicator to the message server.

19. The system of claim 16 further comprising means adapted to permit the user to cause the mobile communications device to signal to the message server to forward further incremental segments of the message following prevention of the automatic incremental forwarding of segments of the message.