System and method of indicating the strength of encryption

1. A method of indicating on an electronic device a security-related trust category associated with an electronic message, the method comprising:

accessing security-related data associated with the electronic message, the security-related data indicating a cipher algorithm used with respect to encryption or signing of the electronic message; and

accessing a security-related policy store on the electronic device, the security-related policy store containing associations between a plurality of security-related trust categories and cipher algorithms;

determining, based upon the accessed security-related data, which of the security-related trust categories corresponds to the electronic message, the determining including comparing the security-related data of the electronic message with the associations in the policy store; and

displaying a security-related indicator corresponding to the determined security-related trust category on a user interface of the electronic device,

the security-related indicator indicative of trust including reliability strength of the cipher algorithm.

2. The method of claim 1 , wherein the electronic device comprises a wireless mobile communication device, a cellular telephone, or a personal data assistant.

3. The method of claim 1 , wherein at least one of the security-related trust categories is determined by an owner of the device.

4. The method of claim 1 , wherein at least one of the security-related categories is determined by a user of the device.

5. The method of claim 1 , wherein the security-related indicator includes text.

6. The method of claim 1 , wherein the security-related data includes a digest or a digital signature.

7. The method of claim 1 ,

wherein the electronic device and another electronic device are configured to use different security-related trust categories for the same security type.

8. The method of claim 1 , wherein the electronic message is encrypted.

9. The method of claim 1 , wherein the electronic message comprises an electronic mail message.

10. The method of claim 9 , wherein a messaging client handles the electronic mail message.

11. The method of claim 1 , wherein the security-related indicator comprises a graphical indicator.

12. The method of claim 11 , further comprising providing a message in response to selection of the security-related indicator, the message to include details of at least one of a secure message protocol and the cipher algorithm used.

13. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors to perform operations for indicating on an electronic device a security-related trust category associated with an electronic message, the operations comprising:

accessing security-related data associated with the electronic message, the security-related data indicating a cipher algorithm used with respect to encryption or signing of the electronic message; and

accessing a security-related policy store on the electronic device, the security-related policy store containing associations between a plurality of security-related trust categories and cipher algorithms;

determining, based upon the accessed security-related data, which of the security-related trust categories corresponds to the electronic message, the determining including comparing the security-related data of the electronic message with the associations in the policy store; and

displaying a security-related indicator corresponding to the determined security-related trust category on a user interface of the electronic device,

the security-related indicator indicative of trust including reliability strength of the cipher algorithm.

14. A system of indicating on an electronic device a security-related trust category associated with an electronic message, wherein security-related data indicates a cipher algorithm used with respect to encryption or signing of the electronic message, the system comprising:

a security-related policy store configured to store, on the electronic device, associations between a plurality of security-related trust categories and cipher algorithms; and

a comparator module configured to determine, based upon the accessed security-related data, which of the security-related trust categories corresponds to the electronic message by comparing the security-related data of the electronic message with the associations in the policy store; and

a user interface to display a security-related indicator corresponding to the determined security-related trust category,

wherein the security-related indicator is indicative of trust including reliability strength of the cipher algorithm.

15. The system of claim 14 , wherein the user interface is configured to display a message in response to selection of the security-related indicator, the message to include details of at least one of a secure message protocol and the cipher algorithm used.

16. A system of indicating on an electronic device a security-related trust category associated with an electronic message, comprising:

accessing security-related data associated with the electronic message, the security-related data indicating a cipher algorithm used with respect to encryption or signing of the electronic message; and

means for accessing a security-related policy store on the electronic device, the security-related policy store containing associations between a plurality of security-related trust categories and cipher algorithms;

means for determining, based upon the accessed security-related data, which of the security-related trust categories corresponds to the electronic message, the determining including comparing the security-related data of the electronic message with the associations in the policy store; and

means for displaying a security-related indicator corresponding to the determined security-related trust category on a user interface of the electronic device,

the security-related indicator indicative of trust including reliability strength of the cipher algorithm.