Methods and devices for providing secure communication sessions

• US 20050228997A1
• Filed: 04/07/2004
• Published: 10/13/2005
• Est. Priority Date: 04/07/2004
• Status: Abandoned Application

• Current Assignee: Sbc Knowledge Ventures, L.P.
• Original Assignee: Sbc Knowledge Ventures, L.P.
• Inventors: Bicker, Dennis Dale
• Application Number:
  US10/819,186
• Publication Number:
  US 20050228997A1
• Time in Patent Office: Days
• US Class Current: 713/171
• CPC Class Codes: H04L 63/062 for key distribution, e.g. centrally by trusted party cryptographic mechanisms or cryptographic arrangements for key distribution involving a central third party H04L9/0819

Abstract

A secure communication session between devices is provided by the reception of public keys by respective devices and the encoding/decoding of messages by the devices using the public keys and another private key.

Claims

1. A method for providing a secure communication session comprising:

receiving, at a public key provider, an identification associated with an intended recipient communication device and a request to forward a public key associated with the device from an initiating communication device;

forwarding the public key associated with the recipient device to the initiating device;

receiving an identification associated with the initiating device and a request to forward a public key associated with the initiating device from the recipient device; and

forwarding the public key associated with the initiating device to the recipient device,

wherein the reception of the respective public keys by the initiating and recipient devices eventually enables a secure communication session to be created between the two devices.

2. The method as in claim 1 further comprising forwarding, from the public key provider, a notice message to the recipient device informing such a device that the initiating device has requested a secure communication session with said recipient device.

3. The method as in claim 1 further comprising:

initially receiving the identification associated with the recipient communication device and the request to forward the public key associated with the recipient device at a gateway; and

forwarding the identification associated with the recipient communication device and the request to forward the public key associated with the recipient device to the public key provider from the gateway.

4. The method as in claim 1 further comprising:

initially forwarding the public key associated with the recipient device to a gateway from the public key provider; and

forwarding the public key associated with the recipient device to the initiating device from the gateway.

5. The method as in claim 2 further comprising:

initially forwarding the notice message to a gateway from the public key provider; and

forwarding the message from the gateway to the recipient device.

6. The method as in claim 1 further comprising:

initially receiving the identification associated with the initiating device and the request to forward a public key associated with the initiating device at a gateway; and

forwarding the identification associated with the initiating device and the request to forward the public key associated with the initiating device to the public key provider from the gateway.

7. The method as in claim 1 further comprising:

initially forwarding the public key associated with the initiating device to a gateway from the public key provider; and

forwarding the public key associated with the initiating device to the recipient device from the gateway.

8. A method for providing a secure communications session comprising:

encoding, at a public key provider, a message from a non-secure device; and

forwarding the encoded message on to a secure device.

9. A method for providing a secure communications session comprising:

decoding, at a public key provider, a message from a secure device; and

forwarding the decoded message to a non-secure device.

10. A method for providing a secure communication session comprising:

forwarding, from an initiating device, an identification associated with an intended recipient communications device and a request to forward a public key associated with the device;

receiving the public key associated with the recipient device at the initiating device; and

decoding, at the initiating device, a message from the recipient device using the received public key and a private key.

11. The method as in claim 10 further comprising relaying the decoded message to a non-secure device.

12. A system for providing a secure communication session comprising:

a public key provider operable to;

receive an identification associated with an intended recipient communication device and a request to forward a public key associated with the device from an initiating communication device,

forward the public key associated with the intended recipient device to the initiating device,

receive an identification of the initiating device and a request to forward a public key associated with the initiating device from the recipient device, and

forward the public key associated with the initiating device to the recipient device,

wherein the reception of the respective public keys by the initiating and recipient devices eventually enables the creation of a secure communication session between the two devices.

13. The system as in claim 12 wherein the public key provider is further operable to forward a notice message to the recipient device informing such a device that the initiating device has requested a secure communication session with said recipient device.

14. The system as in claim 12 further comprising a gateway operable to:

initially receive the identification of the recipient communication device and the request to forward the public key associated with the recipient device; and

forward the identification of the recipient communication device and the request to forward the public key associated with the recipient device to the public key provider.

15. The system as in claim 12 wherein:

the public key provider is further operable to initially forward the public key associated with the recipient device to a gateway; and

the gateway is operable to forward the public key associated with the recipient device to the initiating device.

16. The system as in claim 12 wherein:

the public key provider is further operable to initially forward the notice message to a gateway; and

the gateway is further operable to forward the message to the recipient device.

17. The system as in claim 12 further comprising:

a gateway, operable to initially receive the identification associated with the initiating device and the request to forward a public key associated with the initiating device, and

forward the identification associated with the initiating device and the request to forward the public key associated with the initiating device to the public key provider.

18. The system as in claim 12 wherein:

the public key provider is further operable to initially forward the public key associated with the initiating device to a gateway; and

the gateway is operable to forward the public key associated with the initiating device to the recipient device.

19. A public key provider for providing a secure communications session operable to encode a message from a non-secure device and forward the encoded message on to a secure device.

20. A public key provider for providing a secure communications session operable to decode a message from a secure device and forward the decoded message to a non-secure device.

21. A system for providing secure communications comprising:

a first communication device, operable to forward an identification of a second communication device and a request to forward a public key associated with the second device,

receive the public key associated with the second device to enable the creation of a secure communication session with the second device, and

decode a communication from the second device using the received public key and a private key.

22. The system as in claim 21 wherein the first or second device is further operable to relay a decoded communication to a non-secure device.

23. The system as in claim 21 wherein the first and second devices are selected from the group consisting of at least wired or wireless:

telephones, facsimile machines, personal digital assistants and computers.

24. A computer readable medium for providing a secure communication session operable to control:

forwarding of an identification associated with an intended recipient communications device and a request to forward a public key associated with the device;

reception of the public key associated with the recipient device; and

decoding of a message from the recipient device using the received public key and a private key.

25. The computer readable medium as in claim 24 further operable to relay the decoded message to a non-secure device.

26. A computer readable medium for providing a secure communication session operable to control:

reception of an identification associated with an intended recipient communication device and a request to forward a public key associated with the device from an initiating communication device,

forwarding the public key associated with the intended recipient device to the initiating device,

reception of an identification of the initiating device and a request to forward a public key associated with the initiating device from the recipient device, and

forwarding the public key associated with the initiating device to the recipient device,

wherein the reception of the respective public keys by the initiating and recipient devices eventually enables the creation of a secure communication session between the two devices.

27. The computer readable medium as in claim 26 further operable to control the forwarding of a notice message to the recipient device informing such a device that the initiating device has requested a secure communication session with said recipient device.

28. A computer readable medium for providing a secure communications session operable to control encoding a message from a non-secure device and forwarding the encoded message on to a secure device.

29. A computer readable medium for providing a secure communications session operable to control decoding a message from a secure device and forwarding the decoded message to a non-secure device.

30. An encoded communications signal embodied in a modulated carrier wave and representing sequences to instruct a public key provider to:

receive an identification associated with an intended recipient communication device and a request to forward a public key associated with the device from an initiating communication device,

forward the public key associated with the intended recipient device to the initiating device,

receive an identification of the initiating device and a request to forward a public key associated with the initiating device from the recipient device, and

forward the public key associated with the initiating device to the recipient device,

wherein the reception of the respective public keys by the initiating and recipient devices eventually enables the creation of a secure communication session between the two devices.