Method and system for secure call alert
First Claim
1. A method of establishing secure communications between encryption capable communication devices using a secure call alert, comprising the steps of:
- sending notification by an alerting device to a recipient device of the secure call alert indicative of a desire for secure communications;
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 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.
61 Citations
20 Claims
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1. A method of establishing secure communications between encryption capable communication devices using a secure call alert, comprising the steps of:
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sending notification by an alerting device to a recipient device of the secure call alert indicative of a desire for secure communications;
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 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 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;
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 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 (14, 15, 16)
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17. A system for efficiently establishing secure communications using a 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 secure call alert to at least a second communication device;
a recipient device such as the second communication device programmed to receive the secure call alert and responsively exchange keys with the alerting device if needed for secure communication; and
wherein the recipient device responds to the secure call alert in a secure mode automatically when a user of the recipient device selectively responds to the secure call alert. - View Dependent Claims (18, 19, 20)
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Specification