Invention Grant
US09323909B1 Sharing a cryptographic device by partitioning challenge-response space
有权
通过分配挑战响应空间来共享加密设备
- Patent Title: Sharing a cryptographic device by partitioning challenge-response space
- Patent Title (中): 通过分配挑战响应空间来共享加密设备
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Application No.: US13708343Application Date: 2012-12-07
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Publication No.: US09323909B1Publication Date: 2016-04-26
- Inventor: Guoying Luo , Ari Juels , Kevin D. Bowers
- Applicant: EMC Corporation
- Applicant Address: US MA Hopkinton
- Assignee: EMC Corporation
- Current Assignee: EMC Corporation
- Current Assignee Address: US MA Hopkinton
- Agency: Ryan, Mason & Lewis, LLP
- Main IPC: G06F21/00
- IPC: G06F21/00 ; G06F21/31

Abstract:
Techniques, apparatus and articles of manufacture are provided herein. A method includes providing a first sub-set of authentication information from a set of authentication information associated with a first cryptographic device issued to a user to a second cryptographic device in connection with a first user authentication request responsive to a request from the user to access a first protected resource, wherein the first sub-set comprises a first set of N pre-computed passcodes and corresponding challenges, and providing a second sub-set of authentication information from the set of authentication information associated with the first cryptographic device to a third cryptographic device in connection with a second user authentication request responsive to a request from the user to access a second protected resource, wherein the second sub-set comprises a second set of N pre-computed passcodes and corresponding challenges.
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