- 专利标题： METHODS & PROCESSES TO SECURELY UPDATE SECURE ELEMENTS
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申请号： US17756835申请日： 2020-11-13
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公开(公告)号： US20220414224A1公开(公告)日： 2022-12-29
- 发明人: Kapil Sachdeva , Sylvain Jacques Prevost , Philip Hill
- 申请人： ASSA ABLOY AB
- 申请人地址： SE Stockholm
- 专利权人： ASSA ABLOY AB
- 当前专利权人： ASSA ABLOY AB
- 当前专利权人地址： SE Stockholm
- 国际申请： PCT/EP2020/082136 WO 20201113
- 主分类号： G06F21/57
- IPC分类号： G06F21/57 ; G06F21/44 ; G06F21/60
摘要：
This disclosure describes techniques for updating firmware of a secure element. The techniques include operations comprising: receiving, by a gateway device, from a remote source, a firmware file; receiving, by a processing element implemented on the gateway device, ephemeral session specific key material for a first secure element implemented on the gateway device; dividing the firmware file into a plurality of data chunks; applying, by the processing element, the ephemeral session specific key material to a first data chunk of the plurality of data chunks to generate a first data packet; and sending, by the processing element, the first data packet to the first secure element.
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