A rare type of ROM. Voltage levels are set by firing a laser at traces to set/clear bits.

Original caption: “Laser ROM in Dallas DS1961S iButton chip. Information can be read optically and altered with a laser cutter.” Copyright 2005 Sergei P. Skorobogatov, used with permission

References

  1. “Semi-invasive attacks - A new approach to hardware security analysis.” Sergei P. Skorobogatov.
 
rom/laser.txt · Last modified: 2013/10/20 10:59 (external edit)
 
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