发明申请
- 专利标题: SECURE PROVISIONING IN AN UNTRUSTED ENVIRONMENT
- 专利标题(中): 安全环境中的安全保障
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申请号: US13971886申请日: 2013-08-21
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公开(公告)号: US20140164779A1公开(公告)日: 2014-06-12
- 发明人: DAVID H. HARTLEY , Thomas E. Tkacik , Carlin R. Covey , Lawrence L. Case , Rodney D. Ziolkowski
- 申请人: DAVID H. HARTLEY , Thomas E. Tkacik , Carlin R. Covey , Lawrence L. Case , Rodney D. Ziolkowski
- 申请人地址: US TX Austin
- 专利权人: Freescale Semiconductor, Inc.
- 当前专利权人: Freescale Semiconductor, Inc.
- 当前专利权人地址: US TX Austin
- 主分类号: H04L9/32
- IPC分类号: H04L9/32
摘要:
Embodiments include methods for securely provisioning copies of an electronic circuit. A first entity (e.g., a chip manufacturer) embeds one or more secret values into copies of the electronic circuit. A second entity (e.g., an OEM): 1) embeds a trust anchor in a first copy of the electronic circuit; 2) causes the electronic circuit to generate a message signing key pair using the trust anchor and the embedded secret value(s); 3) signs provisioning code using a code signing private key; and 4) sends a corresponding code signing public key, the trust anchor, and the signed provisioning code to a third entity (e.g., a product manufacturer). The third entity embeds the trust anchor in a second copy of the electronic circuit and causes the electronic circuit to: 1) generate the message signing private key; 2) verify the signature of the signed provisioning code using the code signing public key; and 3) launch the provisioning code on the electronic circuit. The electronic circuit can authenticate itself to the OEM using the message signing key pair.
公开/授权文献
- US09100189B2 Secure provisioning in an untrusted environment 公开/授权日:2015-08-04