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    • 2. 发明专利
    • Portable terminal and data security system
    • 便携式终端和数据安全系统
    • JP2005316284A
    • 2005-11-10
    • JP2004136111
    • 2004-04-30
    • Hitachi Ltd株式会社日立製作所
    • NAKAMURA HIDEKINAGURA TORU
    • G09C1/00G06F11/30G06F12/14H04L9/00H04L9/32
    • H04L9/0877H04L9/0894H04L2209/60H04L2209/80
    • PROBLEM TO BE SOLVED: To enable only an authorized user of a portable terminal to browse data for the authorized user of the portable terminal in the portable terminal capable of being used by a plurality of users.
      SOLUTION: In an IC card 3 attached to the portable terminal, an cryptographic key 4 and a decryption key 5 are stored. By applying data cryptographic processing using the cryptographic key 4 read from the IC card 3, inputted data 10 is turned into enciphered data 14 and stored in a storage device 7. The enciphered data 14 read from the storage device 7 is decoded into the original data 11 by applying a decoding processing 6 using a decoding key 5 in the IC card 3 in data decryption processing 200. When the IC card 3 is different, the cryptographic key 4 and the decoding key 5 are also different from each other, thus the data 14 enciphered by another IC card 3 is subjected to the decoding processing 6 with a different decoding key 5, so that the encrypted data 14 is not correctly decoded.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:仅允许便携式终端的授权用户浏览能够被多个用户使用的便携式终端中的便携式终端的授权用户的数据。 解决方案:在附接到便携式终端的IC卡3中,存储加密密钥4和解密密钥5。 通过使用从IC卡3读取的加密密钥4应用数据密码处理,将输入数据10变为加密数据14并存储在存储装置7中。从存储装置7读取的加密数据14被解码为原始数据 在数据解密处理200中,通过使用IC卡3中的解码密钥5应用解码处理6.当IC卡3不同时,密码密钥4和解码密钥5也彼此不同,因此数据 由另一个IC卡3加密的图14的数据被不同的解码密钥5进行解码处理6,使得加密数据14未被正确解码。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Communication terminal device
    • 通信终端设备
    • JP2005285054A
    • 2005-10-13
    • JP2004102094
    • 2004-03-31
    • Hitachi Ltd株式会社日立製作所
    • SASO YOSUKEHAYASHI TOSHIMITSUNAGURA TORUMAEOKA ATSUSHINAKAMURA HIDEKI
    • G06Q20/10G06K5/00G06Q20/00G06Q20/24G06Q20/30G06Q40/00G06Q40/02G06F17/60
    • G06Q20/322G06Q20/04G06Q20/10G06Q20/32G06Q20/3221
    • PROBLEM TO BE SOLVED: To solve a problem in which it is not conventionally into account to acquire both utilization information of a credit card and account information of a financial institution, for example, to acquire information on the amount utilized of the credit card and information on the balance at the bank when credit settlement is performed using a communication terminal device. SOLUTION: A communication terminal device capable of transmitting/receiving data is provided with: a communication section for transmitting/receiving data; a display section for displaying information received by the communication section; and a control section for controlling the communication section and the display section. The communication section receives card utilization information from a server of a card company and account information from a server of a financial institution, and the control section performs control to display in parallel the card utilization information and the account information on the display section. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了解决通常不考虑信用卡的使用信息和金融机构的账户信息的问题,例如获取信用量的信息 卡和使用通信终端设备进行信用结算时在银行余额上的信息。 解决方案:能够发送/接收数据的通信终端设备具有:用于发送/接收数据的通信部分; 用于显示由通信部接收的信息的显示部分; 以及用于控制通信部分和显示部分的控制部分。 通信部分从卡公司的服务器接收卡利用信息和来自金融机构的服务器的帐户信息,并且控制部分执行控制以在显示部分上并行显示卡使用信息和帐户信息。 版权所有(C)2006,JPO&NCIPI