Cryptographic system, master key update apparatus, and non-transitory computer-readable recording medium storing master key update program | Patent Publication Number 20170331622

US 20170331622 A1
Patent NumberUS 10454673 B2
Application Number15523195
Filled DateDec 5, 2014
Priority DateDec 5, 2014
Publication DateNov 16, 2017
Original AssigneeMitsubishi Electric Corporation
Current AssigneeMitsubishi Electric Corporation
Inventor/ApplicantsYutaka Kawai
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