18704189. COMPUTER SYSTEM AND INFORMATION PROCESSING METHOD (Hitachi, Ltd.)
Contents
COMPUTER SYSTEM AND INFORMATION PROCESSING METHOD
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COMPUTER SYSTEM AND INFORMATION PROCESSING METHOD
This abstract first appeared for US patent application 18704189 titled 'COMPUTER SYSTEM AND INFORMATION PROCESSING METHOD
Original Abstract Submitted
This computer system comprises a computer having a processor that has a function for setting a confidence region in a memory, the confidence region having ensured security and being logically isolated. The computer system accepts a request for execution of processing on encrypted data, in which data is encrypted that includes a plurality of block processes and also includes confidential information, determines whether the encrypted data needs to be decrypted when executing one block process, and executes the block process using a region that is different from the confidence region when the encrypted data does not need to be decrypted, or executes the block process using the confidence region when the encrypted data needs to be decrypted.
