METHOD FOR SECURE ANONYMOUS COMMUNICATION

• US 20020004900A1
• Filed: 09/04/1998
• Published: 01/10/2002
• Est. Priority Date: 09/04/1998
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: PATEL, BAIJU V.
• Application Number:
  US09/148,107
• Publication Number:
  US 20020004900A1
• Time in Patent Office: Days
• US Class Current: 713/155
• CPC Class Codes: G06Q 30/02 Marketing; Price estimation or determination; Fundraising
• CPC Class Codes: H04L 2209/42 Anonymization, e.g. involving pseudonyms
• CPC Class Codes: H04L 2209/56 Financial cryptography, e.g. electronic payment or e-cash
• CPC Class Codes: H04L 2209/60 Digital content management, e.g. content distribution
• CPC Class Codes: H04L 63/0407 wherein the identity of one or more communicating identities is hidden cryptographic mechanisms or cryptographic arrangements for anonymous credentials or for identity based cryptographic systems H04L9/00
• CPC Class Codes: H04L 9/321 involving a third party or a trusted authority
• CPC Class Codes: H04L 9/3263 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements network architectures or network communication protocols for supporting authentication of entities using certificates in a packet data network H04L63/0823

Abstract

Secure anonymous communication between a first party and a second party is accomplished by establishing an identity of the first party with a third party, obtaining an anonymous certificate having a selected attribute by the first party from the third party, and presenting the anonymous certificate by the first party to the second party for verification to establish the anonymous communication.

Claims

1. A method for secure anonymous communication between a first party and a second party comprising:

establishing an identity with a third party;

obtaining an anonymous certificate having a selected attribute from the third party; and

presenting the anonymous certificate to the second party to establish the anonymous communication.

2. The method of claim 1, wherein the anonymous certificate comprises a distinguished name field having a random number representing the first party.

3. The method of claim 1, wherein the anonymous certificate comprises a distinguished name field having a globally unique identifier representing the first party.

4. The method of claim 3, wherein the globally unique identifier comprises a hash of at least one attribute of the first party.

5. The method of claim 1, wherein establishing an identity comprises:

establishing an account with the third party; and

providing information corresponding to personal attributes of the first party.

6. The method of claim 1, wherein obtaining the anonymous certificate comprises:

requesting the anonymous certificate having the selected attribute; and

receiving the anonymous certificate.

7. The method of claim 1, wherein presenting the anonymous certificate comprises:

contacting the second party to establish anonymous communication; and

supplying the anonymous certificate in response to requested proof of the selected attribute.

8. The method of claim 1, wherein the anonymous communication comprises accessing, by the first party, selected content controlled by the second party.

9. The method of claim 1, wherein the anonymous communication comprises engaging in a transaction between the first party and the second party.

10. A method of providing a secure anonymous certificate to a first party by a third party comprising:

requesting information corresponding to at least one personal attribute of the first party;

receiving the information from the first party;

establishing an account for the first party with the information;

providing the first party with credentials for accessing the account;

receiving a request for an anonymous certificate having a selected attribute and the credentials from the first party;

verifying an identity of the first party using the credentials; and

creating the anonymous certificate asserting the selected attribute of the first party.

11. The method of claim 10, wherein the anonymous certificate comprises a digital signature of the third party.

12. The method of claim 10, wherein the anonymous certificate comprises a distinguished name field having a random number representing the first party.

13. The method of claim 10, wherein the anonymous certificate comprises a distinguished name field having a globally unique identifier representing the first party.

14. The method of claim 13, wherein the globally unique identifier comprises a hash of at least one attribute of the first party.

15. A method for secure anonymous communication between a first party and a second party comprising:

receiving a request for communication from a first party;

requesting proof of a selected attribute of the first party;

receiving an anonymous certificate asserting the selected attribute;

verifying the selected attribute; and

allowing the anonymous communication.

16. The method of claim 15, further comprising ensuring that the first party holds a private key matching the anonymous certificate.

17. The method of claim 15, wherein the anonymous communication comprises accessing, by the first party, selected content controlled by the second party.

18. The method of claim 15, wherein the anonymous communication comprises engaging in a transaction between the first party and the second party.

19. The method of claim 15, wherein the anonymous certificate comprises a distinguished name field having a random number representing the first party.

20. The method of claim 15, wherein the anonymous certificate comprises a distinguished name field having a globally unique identifier representing the first party.

21. An article comprising:

a machine readable medium having a plurality of machine readable instructions, wherein when the instructions are executed by a processor the instructions cause a first party to establish an identity with a third party, to obtain an anonymous certificate having a selected attribute from the third party; and

to present the anonymous certificate to a second party to establish secure anonymous communication between the first party and the second party.

22. The article of claim 21, wherein the secure anonymous communication comprises accessing, by the first party, selected content controlled by the second party.

23. The article of claim 21, wherein the secure anonymous communication comprises engaging in a transaction between the first party and the second party.

24. An article comprising:

a machine readable medium having a plurality of machine readable instructions, wherein when the instructions are executed by a processor the instructions cause a third party to request information corresponding to at least one personal attribute of a first party, to receive the information from the first party, to establish an account for the first party with the information, to provide the first party with credentials for accessing the account, to receive a request for an anonymous certificate having a selected attribute and the credentials from the first party, the anonymous certificate to be used for secure anonymous communication with a second party, to verify an identity of the first party using the credentials, and to create the anonymous certificate asserting the selected attribute of the first party.

25. The article of claim 24, wherein the instructions to create the anonymous certificate comprise instructions to insert a digital signature of the third party into the anonymous certificate.

26. The article of claim 24, wherein the instructions to create the anonymous certificate comprise instructions to insert a distinguished name field having a random number representing the first party into the anonymous certificate.

27. The article of claim 24, wherein the instructions to create the anonymous certificate comprise instructions to insert a distinguished name field having a globally unique identifier representing the first party into the anonymous certificate.

28. An article comprising:

a machine readable medium having a plurality of machine readable instructions, wherein when the instructions are executed by a processor the instructions cause a second party to receive a request for communication from a first party, to request proof of a selected attribute of the first party, to receive an anonymous certificate asserting the selected attribute, to verify the selected attribute, and to allow secure anonymous communication between the first party and the second party.

29. The article of claim 28, wherein the secure anonymous communication comprises accessing, by the first party, selected content controlled by the second party.

30. The article of claim 28, wherein the secure anonymous communication comprises engaging in a transaction between the first party and the second party.

31. A system for secure anonymous communication comprising:

a first party to establish an identity, to obtain an anonymous certificate having a selected attribute corresponding to the first party, and to present the anonymous certificate to establish the secure anonymous communication;

a second party to request the anonymous certificate having the selected attribute and to allow secure anonymous communication between the first party and the second party when the selected attribute is verified; and

a third party to request information corresponding to at least one personal attribute of the first party, the at least one personal attribute comprising the selected attribute, to receive the information from the first party, to receive a request for an anonymous certificate having the selected attribute from the first party, and to create the anonymous certificate asserting the selected attribute of the first party based on the established identity.

32. The system of claim 31, wherein the secure anonymous communication comprises accessing, by the first party, selected content controlled by the second party.

33. The system of claim 31, wherein the secure anonymous communication comprises engaging in a transaction between the first party and the second party.