Secret sharing apparatus and secret sharing method that restores secret data from at least two of generated shared data

A secret sharing apparatus generates, from secret data, a plurality of pieces of shared data from which the secret data is able to be restored. The secret data includes a plurality of pieces of divided data which does not include a random number. The secret sharing apparatus includes a shared data g...

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Bibliographische Detailangaben
1. Verfasser: Matsuo Masakatsu
Format: Patent
Sprache:eng
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Zusammenfassung:A secret sharing apparatus generates, from secret data, a plurality of pieces of shared data from which the secret data is able to be restored. The secret data includes a plurality of pieces of divided data which does not include a random number. The secret sharing apparatus includes a shared data generating section which performs an XOR operation between the pieces of divided data and generates the plurality of pieces of shared data which includes the result of the XOR operation between the pieces of divided data.