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Method for protecting a security module and arrangement for the implementation of the method

  • US 7,194,443 B1
  • Filed: 03/10/2000
  • Issued: 03/20/2007
  • Est. Priority Date: 03/12/1999
  • Status: Expired due to Term
First Claim
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1. A method for protecting a security module comprising the steps of:

  • storing security relevant data in a non-volatile memory of a security module and inserting said security module in a device motherboard;

    monitoring proper insertion of said security module on said device motherboard with a first function unit and a second function unit in said security module;

    signaling at least one security-related status of said security module with said first function unit;

    in said monitoring of proper insertion, detecting a status indicating at least one of improper use and improper replacement of said security module with said second function unit and, upon a detection of said status indicating at least one of said improper use and said improper replacement, said second function unit causing said security-relevant data to be erased;

    in said monitoring of proper insertion, monitoring a continued existence of said status with said second function unit and detecting, with said second function unit, when said status no longer exists;

    when said second function unit detects that said status no longer exists, initiating re-initializing, with said first function unit, any erased, security-relevant data; and

    after said re-initializing, enabling each of said first function unit and said second function unit to re-commission said security module.

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