发明名称 |
A METHOD FOR SOFTWARE ANTI-ROLLBACK RECOVERY |
摘要 |
A temporary anti-rollback table - which is cryptographically signed, unique to a specific device, and includes a version number - is provided to an electronic device requiring a replacement anti-rollback table. The table is verified by the device, and loaded to memory following a reboot. The memory image of the table is used to perform anti-rollback verification of all trusted software components as they are loaded. After booting, the memory image of the table is written in a secure manner to non-volatile memory as a replacement anti-rollback table, and the temporary anti-rollback table is deleted. The minimum required table version number in OTP memory is incremented. The temporary anti-rollback table is created and signed using a private key at authorized service centers; a corresponding public key in the electronic device verifies its authenticity. |
申请公布号 |
WO2014131652(A1) |
申请公布日期 |
2014.09.04 |
申请号 |
WO2014EP53113 |
申请日期 |
2014.02.18 |
申请人 |
ST-ERICSSON SA |
发明人 |
STÅHL, PER;ENGLUND, HÅKAN;HOLMBERG, HANS |
分类号 |
G06F21/57;G06F9/44;H04L9/32 |
主分类号 |
G06F21/57 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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