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    • 1. 发明授权
    • Block cipher using key data merged with an intermediate block generated from a previous block
    • 使用与从先前块生成的中间块合并的密钥数据的块密码
    • US06459792B2
    • 2002-10-01
    • US09064469
    • 1998-04-22
    • Motoji OhmoriNatsume MatsuzakiMakoto TatebayashiMasakatsu Maruyama
    • Motoji OhmoriNatsume MatsuzakiMakoto TatebayashiMasakatsu Maruyama
    • H04L937
    • H04L9/0891H04L9/0637H04L9/0894H04L2209/38
    • A cryptographic processing apparatus for performing cryptographic processing using input data to generate output data is provided. The cryptographic processing apparatus includes a storage unit for storing chain data which is used for reflecting present cryptographic processing on next cryptographic processing, and for renewing the chain data each time cryptographic processing is performed, a merging unit for merging the chain data stored in the storage unit with the input data to generate merged data, and a main cryptographic processing unit for performing main cryptographic processing using the merged data to generate output data and for outputting intermediate data generated during a generation of the output data, wherein the storage unit renews the chain data by storing the intermediate data outputted by the main cryptographic processing unit as the new chain data, which is used for the next cryptographic processing.
    • 提供一种使用输入数据进行密码处理以产生输出数据的密码处理装置。 密码处理装置包括存储单元,用于存储链数据,用于反映当前密码处理对下一密码处理的处理,并且每次执行密码处理时更新链数据;合并单元,用于合并存储在存储器中的链数据 具有用于生成合并数据的输入数据的单元,以及主密码处理单元,用于使用合并数据执行主密码处理,以生成输出数据并输出在生成输出数据期间生成的中间数据,其中存储单元更新链 数据通过存储由主密码处理单元输出的中间数据作为用于下一个密码处理的新链接数据。