JPS6410750A - Block encipherment device - Google Patents
Block encipherment deviceInfo
- Publication number
- JPS6410750A JPS6410750A JP62165837A JP16583787A JPS6410750A JP S6410750 A JPS6410750 A JP S6410750A JP 62165837 A JP62165837 A JP 62165837A JP 16583787 A JP16583787 A JP 16583787A JP S6410750 A JPS6410750 A JP S6410750A
- Authority
- JP
- Japan
- Prior art keywords
- data
- block
- encipherment
- keys
- enciphered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To make the decoding of enciphered data difficult by modifying the keys of a block encipherment device for each block. CONSTITUTION:The following two are provided: a data encipherment means 20 which divides data to be enciphered into certain blocks and block-enciphers the data by means of keys that are data for the encipherment, and a key encipherment means 30 which block-enicphers the data to be the keys by using a fixed master key for each division. The data encipherment means 20 uses the data that varying in each block generated by the key encipherment means 30 as keys. Therefore, the keys for the block encipherment are in values that vary for each block, hence the decoding of enciphered data is made difficult.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165837A JPS6410750A (en) | 1987-07-02 | 1987-07-02 | Block encipherment device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165837A JPS6410750A (en) | 1987-07-02 | 1987-07-02 | Block encipherment device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6410750A true JPS6410750A (en) | 1989-01-13 |
Family
ID=15819941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62165837A Pending JPS6410750A (en) | 1987-07-02 | 1987-07-02 | Block encipherment device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6410750A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04109721A (en) * | 1990-08-30 | 1992-04-10 | Eiji Watanabe | Privacy call system for radio telephone set and lsi for privacy call communication |
WO2008001918A1 (en) * | 2006-06-30 | 2008-01-03 | Kiyoto Yui | Random number generation device, encryption/decryption device using the same, its program, and program recording medium |
JP2009071854A (en) * | 2004-08-12 | 2009-04-02 | Cmla Llc | Permutation data transform to enhance security |
US8737608B2 (en) | 2004-08-12 | 2014-05-27 | Cmla, Llc | Exponential data transform to enhance security |
JP2014220729A (en) * | 2013-05-10 | 2014-11-20 | 株式会社メガチップス | Encryption processing device, semiconductor memory, and memory system |
JP2014224879A (en) * | 2013-05-16 | 2014-12-04 | 株式会社メガチップス | Random number generator; encryption processing device, storage device, and information processing system |
WO2016027454A1 (en) * | 2014-08-20 | 2016-02-25 | 日本電気株式会社 | Authentication encryption method, authentication decryption method, and information-processing device |
JP2018092174A (en) * | 2017-12-22 | 2018-06-14 | 株式会社メガチップス | Random number generator, storage device, and information processing system |
-
1987
- 1987-07-02 JP JP62165837A patent/JPS6410750A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04109721A (en) * | 1990-08-30 | 1992-04-10 | Eiji Watanabe | Privacy call system for radio telephone set and lsi for privacy call communication |
JP2009071854A (en) * | 2004-08-12 | 2009-04-02 | Cmla Llc | Permutation data transform to enhance security |
JP2012023764A (en) * | 2004-08-12 | 2012-02-02 | Cmla Llc | Translation data conversion for enhanced security |
JP2012023763A (en) * | 2004-08-12 | 2012-02-02 | Cmla Llc | Translation data conversion for enhanced security |
US8737608B2 (en) | 2004-08-12 | 2014-05-27 | Cmla, Llc | Exponential data transform to enhance security |
WO2008001918A1 (en) * | 2006-06-30 | 2008-01-03 | Kiyoto Yui | Random number generation device, encryption/decryption device using the same, its program, and program recording medium |
JP2014220729A (en) * | 2013-05-10 | 2014-11-20 | 株式会社メガチップス | Encryption processing device, semiconductor memory, and memory system |
JP2014224879A (en) * | 2013-05-16 | 2014-12-04 | 株式会社メガチップス | Random number generator; encryption processing device, storage device, and information processing system |
WO2016027454A1 (en) * | 2014-08-20 | 2016-02-25 | 日本電気株式会社 | Authentication encryption method, authentication decryption method, and information-processing device |
JPWO2016027454A1 (en) * | 2014-08-20 | 2017-06-08 | 日本電気株式会社 | Authentication encryption method, authentication decryption method, and information processing apparatus |
US10623176B2 (en) | 2014-08-20 | 2020-04-14 | Nec Corporation | Authentication encryption method, authentication decryption method, and information-processing device |
JP2018092174A (en) * | 2017-12-22 | 2018-06-14 | 株式会社メガチップス | Random number generator, storage device, and information processing system |
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