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SECRET PARALLEL PROCESSING DEVICE, SECRET PARALLEL PROCESSING METHOD, AND PROGRAM
SECRET PARALLEL PROCESSING DEVICE, SECRET PARALLEL PROCESSING METHOD, AND PROGRAM
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机译：秘密并行处理设备，秘密并行处理方法和程序
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摘要
A secret parallel processing device reducing the communication amount in secret parallel processing is provided. The device includes: a randomization unit that obtains a non-randomized sequence being an input sequence and outputs a randomized sequence obtained by joining the non-randomized sequence and a dummy record sequence formed of a disclosed value and subjecting the joined sequences to random replacement processing and concealed random replacement data obtained by concealing used random replacement data; a calculation unit that obtains the non-randomized sequence, the randomized sequence, and the dummy record sequence, applies a predetermined function to the sequences, and generates an output checksum for each sequence by using calculation procedure data used in the processing of applying the function; and a correctness verification unit that obtains the output checksum for each sequence and the concealed random replacement data, assesses the output checksum for each sequence, and outputs a final test result determining whether the predetermined function has been correctly applied on the non-randomized sequence.
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