Method and system for secure call alert
First Claim
1. A method of establishing secure wireless communications between encryption capable communication devices using a wireless secure call alert, comprising steps of:
- sending notification by an alerting device to a recipient device of the wireless secure call alert indicative of a desire for secure communications by activating a key on a user interface of the alerting device, wherein the alerting device and the recipient device are both cellular mobile devices;
responsive to receipt of the notification, causing the recipient device to switch to a secure mode;
initiating a key exchange between the alerting device and the recipient device if needed; and
automatically responding to the wireless secure call alert by the recipient device in the secure mode when a user of the recipient device selectively responds to the secure call alert.
4 Assignments
0 Petitions
Accused Products
Abstract
An encryption capable communication device (10) can include a transceiver (38 and 44) and a processor (12) coupled to the transceiver. The processor can be programmed to receive notification of a secure call alert indicative of a desire for secure communications between an alerting device and the encryption capable communication device serving as a recipient device and further cause the recipient device to switch (64) to a secure mode in response to receipt of the notification. The processor can be further programmed to initiate a key exchange (67) between the alerting device and the recipient device if needed and automatically respond (70) to the secure call alert by the recipient device in the secure mode when a user of the recipient device selectively responds to the secure call alert. The processor can also establish a symmetric traffic key during the key exchange using Automatic Public Key exchange techniques.
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Citations
20 Claims
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1. A method of establishing secure wireless communications between encryption capable communication devices using a wireless secure call alert, comprising steps of:
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sending notification by an alerting device to a recipient device of the wireless secure call alert indicative of a desire for secure communications by activating a key on a user interface of the alerting device, wherein the alerting device and the recipient device are both cellular mobile devices; responsive to receipt of the notification, causing the recipient device to switch to a secure mode; initiating a key exchange between the alerting device and the recipient device if needed; and automatically responding to the wireless secure call alert by the recipient device in the secure mode when a user of the recipient device selectively responds to the secure call alert. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An encryption capable communication device, comprising:
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a transceiver; a processor coupled to the transceiver, wherein the processor is programmed to; receive notification of a wireless secure call alert indicative of a desire for secure communications between an alerting device and the encryption capable communication device serving as a recipient device, wherein the alerting device and the recipient device are both cellular mobile devices and the wireless secure call alert is initiated by activating a key on a user interface of the alerting device; responsive to receipt of the notification, cause the recipient device to switch to a secure mode; initiate a key exchange between the alerting device and the recipient device if needed; automatically respond to the wireless secure call alert by the recipient device in the secure mode when a user of the recipient device selectively responds to the wireless secure call alert. - View Dependent Claims (14, 15, 16)
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17. A system for efficiently establishing secure communications using a wireless secure call alert, comprising:
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a first communication device communicatively coupled to a base station, wherein the first communication device serves as an alerting device programmed to user selectively send the wireless secure call alert to at least a second communication device by activating a key on a user interface of the alerting device; a recipient device such as the second communication device programmed to receive the wireless secure call alert and responsively exchange keys with the alerting device if needed for secure communication; and wherein the recipient device responds to the wireless secure call alert in a secure mode automatically when a user of the recipient device selectively, responds to the wireless secure call alert and wherein the alerting device and the recipient device are both cellular mobile devices. - View Dependent Claims (18, 19, 20)
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Specification