HK1059997A1 - Encryption/decryption system and encryption/decryption method - Google Patents

Encryption/decryption system and encryption/decryption method

Info

Publication number
HK1059997A1
HK1059997A1 HK04102807A HK04102807A HK1059997A1 HK 1059997 A1 HK1059997 A1 HK 1059997A1 HK 04102807 A HK04102807 A HK 04102807A HK 04102807 A HK04102807 A HK 04102807A HK 1059997 A1 HK1059997 A1 HK 1059997A1
Authority
HK
Hong Kong
Prior art keywords
encryption
decryption
work key
unit
data body
Prior art date
Application number
HK04102807A
Other languages
English (en)
Inventor
Atsuko Sugiura
Original Assignee
Nec Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nec Corp filed Critical Nec Corp
Publication of HK1059997A1 publication Critical patent/HK1059997A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0457—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply dynamic encryption, e.g. stream encryption
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/068—Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0866—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving user or device identifiers, e.g. serial number, physical or biometrical information, DNA, hand-signature or measurable physical characteristics

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
HK04102807A 2002-05-09 2004-04-21 Encryption/decryption system and encryption/decryption method HK1059997A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002134170A JP2003333024A (ja) 2002-05-09 2002-05-09 暗号化／復号化システム及びその暗号解読防止／改竄防止方法

Publications (1)

Publication Number Publication Date
HK1059997A1 true HK1059997A1 (en) 2004-07-23

Family

ID=29244174

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04102807A HK1059997A1 (en) 2002-05-09 2004-04-21 Encryption/decryption system and encryption/decryption method

Country Status (7)

Country Link
US (1) US20030212886A1 (xx)
EP (1) EP1361692A3 (xx)
JP (1) JP2003333024A (xx)
KR (1) KR100579673B1 (xx)
CN (1) CN1324831C (xx)
HK (1) HK1059997A1 (xx)
TW (1) TWI246296B (xx)

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US7318160B2 (en) * 2002-02-01 2008-01-08 Hewlett-Packard Development Company, L.P. Cryptographic key setup in queued cryptographic systems
KR100604828B1 (ko) * 2004-01-09 2006-07-28 삼성전자주식회사 펌웨어 암호화 방법 및 해독 방법과 그 처리 장치
JP2007011786A (ja) * 2005-06-30 2007-01-18 Toshiba Corp 冷却装置、電子機器
US8832466B1 (en) 2006-01-27 2014-09-09 Trustwave Holdings, Inc. Methods for augmentation and interpretation of data objects
JP2007235324A (ja) * 2006-02-28 2007-09-13 Toshiba Corp 復号または暗号化を行う情報処理装置および情報処理方法
US8275132B2 (en) * 2006-05-15 2012-09-25 Buchen Neil B System and method for dynamically allocating stream identifiers in a multi-encryption transport system
US8176319B2 (en) * 2006-06-27 2012-05-08 Emc Corporation Identifying and enforcing strict file confidentiality in the presence of system and storage administrators in a NAS system
US8185751B2 (en) * 2006-06-27 2012-05-22 Emc Corporation Achieving strong cryptographic correlation between higher level semantic units and lower level components in a secure data storage system
US8826023B1 (en) * 2006-06-30 2014-09-02 Symantec Operating Corporation System and method for securing access to hash-based storage systems
US20080104417A1 (en) * 2006-10-25 2008-05-01 Nachtigall Ernest H System and method for file encryption and decryption
SG144772A1 (en) * 2007-01-26 2008-08-28 Victor Company Of Japan Encryption and decryption methods and apparatus
US7936873B2 (en) 2007-05-07 2011-05-03 Apple Inc. Secure distribution of content using decryption keys
EP2146504A1 (en) * 2008-07-18 2010-01-20 Thomson Licensing, Inc. Method and device for key generation
TWI386832B (zh) * 2008-11-21 2013-02-21 Htc Corp 可攜式通訊裝置及其控制方法
US8782803B2 (en) 2010-04-14 2014-07-15 Legitmix, Inc. System and method of encrypting a derivative work using a cipher created from its source
US8925102B2 (en) * 2010-10-14 2014-12-30 Legitmix, Inc. System and method of generating encryption/decryption keys and encrypting/decrypting a derivative work
JP5818470B2 (ja) * 2011-03-15 2015-11-18 キヤノン株式会社 情報処理装置、情報処理装置の制御方法及びプログラム
CN102957541B (zh) * 2012-11-21 2016-11-16 浪潮集团有限公司 一种基于saas的密码加密方法
CN104717053B (zh) * 2013-12-11 2018-08-07 晨星半导体股份有限公司 数据解密电路与方法
CN103716157B (zh) * 2013-12-13 2017-01-25 厦门市美亚柏科信息股份有限公司 分组多密钥加密方法及装置
KR101513833B1 (ko) * 2014-04-07 2015-04-22 (주)스마일게이트엔터테인먼트 해킹 탐지 모듈 보안 방법 및 시스템
CN107317679B (zh) * 2017-06-05 2020-01-31 国政通科技股份有限公司 一种身份证丢失后防诈骗的方法和系统
CN107172436B (zh) * 2017-06-09 2019-11-26 国政通科技股份有限公司 一种身份证信息传输保护的方法和系统
US11716201B2 (en) * 2018-05-21 2023-08-01 Assa Abloy Ab System and method for maintaining usage records in a shared computing environment
CN110505240A (zh) * 2019-09-12 2019-11-26 山东浪潮人工智能研究院有限公司 一种基于服务器和客户端通信协议实现方法
US20230126908A1 (en) * 2021-10-27 2023-04-27 International Business Machines Corporation Protection against executing injected malicious code

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US4941176A (en) * 1988-08-11 1990-07-10 International Business Machines Corporation Secure management of keys using control vectors
US5268962A (en) * 1992-07-21 1993-12-07 Digital Equipment Corporation Computer network with modified host-to-host encryption keys
CA2146472C (en) * 1994-04-22 2007-10-09 Kevin Elliott Bridgewater Packet video signal inverse transport processor with memory address circuitry
JPH08335040A (ja) * 1995-06-02 1996-12-17 Fujitsu Ltd 暗号化処理方式
FI102936B (fi) * 1996-03-04 1999-03-15 Nokia Telecommunications Oy Pakettimuotoisen lähetyksen turvallisuuden parantaminen matkaviestinjä rjestelmässä
JP3651721B2 (ja) * 1996-11-01 2005-05-25 株式会社東芝 移動計算機装置、パケット処理装置及び通信制御方法
US6167136A (en) * 1997-05-16 2000-12-26 Software Security, Inc. Method for preventing copying of digital video disks
US6272631B1 (en) * 1997-06-30 2001-08-07 Microsoft Corporation Protected storage of core data secrets
JP3588536B2 (ja) * 1997-07-11 2004-11-10 株式会社東芝 不正データコピー防止装置及び方法
US6373948B1 (en) * 1997-08-15 2002-04-16 Lucent Technologies Inc. Cryptographic method and apparatus for restricting access to transmitted programming content using program identifiers
DE69828401D1 (de) * 1998-10-12 2005-02-03 St Microelectronics Srl Verschlüsselungs-Methode und -Station für Paketvermittlungsnetzwerke auf der Grundlage digitaler chaotischer Modelle
US6665709B1 (en) * 2000-03-27 2003-12-16 Securit-E-Doc, Inc. Method, apparatus, and system for secure data transport
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JP2002158650A (ja) * 2000-11-21 2002-05-31 Fujitsu Ltd 認証・暗号化処理代行用のサーバ、アクセスカード、プログラム記録媒体及び携帯端末
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US7233669B2 (en) * 2002-01-02 2007-06-19 Sony Corporation Selective encryption to enable multiple decryption keys

Also Published As

Publication number Publication date
TWI246296B (en) 2005-12-21
TW200308162A (en) 2003-12-16
KR100579673B1 (ko) 2006-05-15
JP2003333024A (ja) 2003-11-21
EP1361692A3 (en) 2004-01-02
CN1324831C (zh) 2007-07-04
CN1457166A (zh) 2003-11-19
KR20030087980A (ko) 2003-11-15
EP1361692A2 (en) 2003-11-12
US20030212886A1 (en) 2003-11-13

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20140509