发明名称 Encryption apparatus and image forming apparatus
摘要 An encryption apparatus and an image forming apparatus are provided, in which measures are taken to prevent the encryption-key code from leaking outside. An encryption-key code is stored in a volatile memory that is soldered to a board. A lithium button-cell is used as backup power supply for the volatile memory. A wire that is provided on the board connects the lithium button-cell to the volatile memory.
申请公布号 US2005201558(A1) 申请公布日期 2005.09.15
申请号 US20050076342 申请日期 2005.03.09
申请人 TOSHIBA TEC KABUSHIKI KAISHA 发明人 WATANABE TOSHIYUKI;HINAGA KEIICHI
分类号 G06F21/24;G06F11/30;G06F12/14;G06F21/06;H04L9/00;H04L9/10;H04L9/32;H04N7/167;(IPC1-7):H04N7/167 主分类号 G06F21/24
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