Invention Grant
US08856524B2 Cryptographic methods, host system, trusted platform module, computer arrangement, computer program product and computer program
有权
加密方法，主机系统，可信平台模块，计算机安排，计算机程序产品和计算机程序
- Patent Title: Cryptographic methods, host system, trusted platform module, computer arrangement, computer program product and computer program
- Patent Title (中): 加密方法，主机系统，可信平台模块，计算机安排，计算机程序产品和计算机程序
-
Application No.: US11541017Application Date: 2006-09-29
-
Publication No.: US08856524B2Publication Date: 2014-10-07
- Inventor: Jan Leonhard Camenisch
- Applicant: Jan Leonhard Camenisch
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent William Stock; Anne Vachon Dougherty
- Priority: EP05021352 20050929
- Main IPC: H04L29/00
- IPC: H04L29/00 ; H04L9/32
Abstract:
A cryptographic method is provided for a host system having an associated trusted platform module. A first contribution to a message is computed by the TPM based on a first secret parameter stored in the TPM. The host system computes a second contribution to the message based on a second secret parameter stored in the host system outside the TPM. The first and second contributions to the message are then combined by either the host or the TPM and a first proof is conducted, proving to the host system that the contribution of the TPM was computed correctly or proving to the TPM that the contribution of the host was computed correctly.
Public/Granted literature
Information query
