JPS6161740B2 - - Google Patents

Info

Publication number
JPS6161740B2
JPS6161740B2 JP56154600A JP15460081A JPS6161740B2 JP S6161740 B2 JPS6161740 B2 JP S6161740B2 JP 56154600 A JP56154600 A JP 56154600A JP 15460081 A JP15460081 A JP 15460081A JP S6161740 B2 JPS6161740 B2 JP S6161740B2
Authority
JP
Japan
Prior art keywords
code
memory
circuit
communication device
secret
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.)
Expired
Application number
JP56154600A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5856546A (ja
Inventor
Yoshifumi Toda
Hisahiro Koga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56154600A priority Critical patent/JPS5856546A/ja
Publication of JPS5856546A publication Critical patent/JPS5856546A/ja
Publication of JPS6161740B2 publication Critical patent/JPS6161740B2/ja
Granted legal-status Critical Current

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
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • H04L9/0897—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage involving additional devices, e.g. trusted platform module [TPM], smartcard or USB

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
JP56154600A 1981-09-29 1981-09-29 秘密通信装置 Granted JPS5856546A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56154600A JPS5856546A (ja) 1981-09-29 1981-09-29 秘密通信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56154600A JPS5856546A (ja) 1981-09-29 1981-09-29 秘密通信装置

Publications (2)

Publication Number Publication Date
JPS5856546A JPS5856546A (ja) 1983-04-04
JPS6161740B2 true JPS6161740B2 (enrdf_load_stackoverflow) 1986-12-26

Family

ID=15587723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56154600A Granted JPS5856546A (ja) 1981-09-29 1981-09-29 秘密通信装置

Country Status (1)

Country Link
JP (1) JPS5856546A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233339B1 (en) 1996-10-25 2001-05-15 Fuji Xerox Co., Ltd. Physical property based cryptographics

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950100U (ja) * 1982-09-24 1984-04-03 パイオニア株式会社 Ｒｏｍカ−トリツジの転用・転写防止装置
JPS6082329U (ja) * 1983-11-14 1985-06-07 横河メディカルシステム株式会社 記憶装置の補助電源回路
DE3347483A1 (de) * 1983-12-29 1985-07-11 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Vorrichtung zur sicherung geheimer informationen
JPS6161291A (ja) * 1984-09-03 1986-03-29 Nec Corp バツクアツプメモリ−回路
JPS61168438U (enrdf_load_stackoverflow) * 1985-04-02 1986-10-18
JPH01126132A (ja) * 1987-09-30 1989-05-18 Nippon Kouatsu Electric Co 限流用エレメント
JPH01106537A (ja) * 1987-10-19 1989-04-24 Tokyo Tatsuno Co Ltd インタフェイス装置
JPH01108826A (ja) * 1987-10-20 1989-04-26 Tokyo Tatsuno Co Ltd インタフェイス装置
JPH0268641A (ja) * 1988-08-17 1990-03-08 Corns & Co Ltd 集積回路の機密保護方式
JPH0354054U (enrdf_load_stackoverflow) * 1989-09-27 1991-05-24
JPH04195383A (ja) * 1990-11-27 1992-07-15 Matsushita Electric Ind Co Ltd Ｉｃカード装置およびそれを用いた受信装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233339B1 (en) 1996-10-25 2001-05-15 Fuji Xerox Co., Ltd. Physical property based cryptographics

Also Published As

Publication number Publication date
JPS5856546A (ja) 1983-04-04

Similar Documents

Publication Publication Date Title
CA2041248C (en) Security module for radio telephone
CA1306549C (en) Process and apparatus for the protection of secret elements in a network of encrypting devices with open key management
EP0671090B1 (en) Method and apparatus for improved security within encrypted communication devices
US5799083A (en) Event verification system
JP2727763B2 (ja) 電源遷移中に処理装置を制御する方法および装置
US5241597A (en) Method for recovering from encryption key variable loss
US7460853B2 (en) Wireless module security system and method
KR100483293B1 (ko) 보안 시스템
KR900701108A (ko) 크립토그래픽 장치와 통신 장치 및 그 제조 방법
JPS6161740B2 (enrdf_load_stackoverflow)
US20010039620A1 (en) Method for protecting a memory card, and a memory card
JP4907880B2 (ja) 携帯情報端末およびデータ保護方法
KR920704463A (ko) 선택식 호출 수신기
CN106685981B (zh) 多系统的数据加密传输方法及装置
US8769307B2 (en) Secure operation indicator
KR20080106302A (ko) 통신 시스템, 및 통신 기기
US4555591A (en) Integrated circuit devices for secure data encryption
BE1003693A6 (fr) Systeme de securite pour systeme informatique.
KR100605920B1 (ko) 휴대 단말기의 외부메모리 보안방법
CN100569024C (zh) 一种phs手机鉴权信息的保护方法
JPH04347948A (ja) 秘匿通信装置
JPH07141261A (ja) 暗号装置
JPH01212998A (ja) 無線制御方式
KR950022700A (ko) 전송데이타 유출방지용 화상전송장치 및 유출방지방법
KR20050117099A (ko) 메시지에 의하여 입출력장치의 작동을 제한 할 수 있는이동통신 단말기, 상기 이동통신 단말기의 입출력장치작동 제한 방법 및 시스템