Method of defending software from debugger attacks

Details Method of defending software from debugger attacks Method of defending software from debugger attacks

2006-12-12

2006-12-12

Barrón, Jr., Gilberto (Department: 2132)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S187000, C713S194000, C717S124000, C717S129000, C726S022000, C726S026000

Reexamination Certificate

active

07149900

ABSTRACT:
Deterring an attack on a tamper-resistant application program may be accomplished by loading a plurality of agents and starting a plurality of processing threads, each thread executing one of the agents, concurrently executing each agent substantially in parallel to produce a processing result for each agent for an iteration of a stage of protocol processing, storing each processing result in an entry in a buffer associated with each agent, and repeating the executing and storing actions for multiple iterations of the protocol processing. When one of the agents stores a processing result in a last entry of the agent's buffer, the processing results from the first entries in the buffers are combined to produce a combined result, and if the combined result indicates an error, failure semantics may be executed.

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