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US07751556B2 Apparatus and method of generating falsification detecting data of encrypted data in the course of process 失效
在处理过程中产生加密数据伪造检测数据的装置和方法

  • Patent Title: Apparatus and method of generating falsification detecting data of encrypted data in the course of process
  • Patent Title (中): 在处理过程中产生加密数据伪造检测数据的装置和方法
  • Application No.: US10483625
    Application Date: 2002-07-10
  • Publication No.: US07751556B2
    Publication Date: 2010-07-06
  • Inventor: Katsuhiko Sato , Yuji Sawada
  • Applicant: Katsuhiko Sato , Yuji Sawada
  • Applicant Address: JP Osaka-Shi
  • Assignee: Sharp Kabushiki Kaisha
  • Current Assignee: Sharp Kabushiki Kaisha
  • Current Assignee Address: JP Osaka-Shi
  • Agency: Birch, Stewart, Kolasch & Birch, LLP
  • Priority: JP2001-216138 20010717
  • International Application: PCT/JP02/07031 WO 20020710
  • International Announcement: WO03/013054 WO 20030213
  • Main IPC: H04L9/00
  • IPC: H04L9/00
Apparatus and method of generating falsification detecting data of encrypted data in the course of process
Abstract:
Data to be encrypted (301) is partially extracted successively. A result of encrypting a previously extracted portion of the data is used to successively calculate that of encrypting the currently extracted portion of the data successively. Successively calculated results of the encryption are used to generate encrypted data (305). In generating the encrypted data, a finally calculated result of the encryption (PF(z+1)) is attached to the generated encrypted data. The finally calculated result is used as falsification detecting data (308) for detecting whether the data to be encrypted is falsified data.
Abstract(Chinese):

要被加密的数据（301）被连续部分提取。 使用对先前提取的部分数据进行加密的结果被连续地依次计算当前提取的部分数据的加密。 使用连续计算的加密结果来生成加密数据（305）。 在生成加密数据时，加密的最终计算结果（PF（z + 1））附加到生成的加密数据。 最终计算结果被用作伪造检测数据（308），用于检测要加密的数据是否是伪造的数据。

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