Electrical computers and digital processing systems: support – Data processing protection using cryptography – Tamper resistant
Reexamination Certificate
2007-06-26
2007-06-26
Zand, Kambiz (Department: 2134)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
Tamper resistant
C726S030000
Reexamination Certificate
active
09967268
ABSTRACT:
A computer system includes various security measures to insure that semi-permanent operating programs, such a boot blocks and firmware, are updated properly. For example, the system may include a security switch that can enable a host computer to load a replacement program into another computer, such as an appliance server for example, if the other computer fails. Also, if a replacement program is being loaded over a network connection that fails, the loading can resume automatically after re-establishment of the network connection. In addition, certain programs, such as boot blocks, may be verified in an execution memory, such as RAM, and loaded into a more permanent storage memory, such as ROM, only if verified.
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Nalven Andrew L
Zand Kambiz
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