Invention Grant
- Patent Title: Management of secure element deadlock
- Patent Title (中): 管理安全元件死锁
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Application No.: US13424861Application Date: 2012-03-20
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Publication No.: US09460318B2Publication Date: 2016-10-04
- Inventor: Nicolas Garnier , Xavier Kerdreux , Fabien Boitard
- Applicant: Nicolas Garnier , Xavier Kerdreux , Fabien Boitard
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP11290170 20110405
- Main IPC: G06F21/81
- IPC: G06F21/81 ; G06F1/30 ; G06F1/26 ; G06F1/28 ; G06K19/07

Abstract:
Various embodiments relate to an apparatus and associated method for a contactless front-end (CLF) managing a secure element (SE). When the SE receives a low power, a monitoring circuit in the CLF may monitor a power supplied to the SE. Upon detection of an under-voltage condition, the monitoring circuit may cause a management module in the CLF to react to the detected under-voltage condition with an SE management technique. The management module may enact the SE management technique through a separate communications interface connected to the SE. In some embodiments, the CLF may further comprise a register that maintains an under-voltage flag that is triggered when the monitoring circuit detects an under-voltage condition. The management module may reset the under-voltage flag and may use the triggering of the under-voltage flag one or more times to determine whether to react through use of a SE management technique.
Public/Granted literature
- US20120260119A1 MANAGEMENT OF SECURE ELEMENT DEADLOCK Public/Granted day:2012-10-11
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