CA2135631A1 - A Method for Loading and Utilizing a Key in a Secure Transmission Device - Google Patents

A Method for Loading and Utilizing a Key in a Secure Transmission Device

Info

Publication number
CA2135631A1
CA2135631A1 CA2135631A CA2135631A CA2135631A1 CA 2135631 A1 CA2135631 A1 CA 2135631A1 CA 2135631 A CA2135631 A CA 2135631A CA 2135631 A CA2135631 A CA 2135631A CA 2135631 A1 CA2135631 A1 CA 2135631A1
Authority
CA
Canada
Prior art keywords
key
transmission device
secure transmission
stored
volatile memory
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.)
Granted
Application number
CA2135631A
Other languages
French (fr)
Other versions
CA2135631C (en
Inventor
Kent D. Rager
Steven H. Lay
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.)
Motorola Solutions Inc
Original Assignee
Kent D. Rager
Steven H. Lay
Motorola, Inc.
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 Kent D. Rager, Steven H. Lay, Motorola, Inc. filed Critical Kent D. Rager
Publication of CA2135631A1 publication Critical patent/CA2135631A1/en
Application granted granted Critical
Publication of CA2135631C publication Critical patent/CA2135631C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Abstract

An encryption code and at least one key ale provided to a secure transmission device, via an external keying device, and stored in a volatile memory. A user code, entered via a keypad by a user, is received by the secure transmission device. An representation of the at least one key, based on the encryption code and the at least one key, is generated and stored in a non-volatile memory. Also, an encrypted representation of the encryption code and the user code, based on the user code, are generated and stored in the non-volatile memory. Upon power down of the secure transmission device, the at least one key and encryption code stored in the volatile memory are erased.
CA002135631A 1993-03-26 1994-02-25 A method for loading and utilizing a key in a secure transmission device Expired - Fee Related CA2135631C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US037,794 1993-03-26
US08/037,794 US5412721A (en) 1993-03-26 1993-03-26 Method for loading and utilizing a key in a secure transmission device
PCT/US1994/002057 WO1994023512A1 (en) 1993-03-26 1994-02-25 A method for loading and utilizing a key in a secure transmission device

Publications (2)

Publication Number Publication Date
CA2135631A1 true CA2135631A1 (en) 1994-10-13
CA2135631C CA2135631C (en) 1999-01-26

Family

ID=21896380

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002135631A Expired - Fee Related CA2135631C (en) 1993-03-26 1994-02-25 A method for loading and utilizing a key in a secure transmission device

Country Status (5)

Country Link
US (1) US5412721A (en)
AU (1) AU662685B2 (en)
CA (1) CA2135631C (en)
GB (1) GB2282036B (en)
WO (1) WO1994023512A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5457748A (en) * 1992-11-30 1995-10-10 Motorola, Inc. Method and apparatus for improved security within encrypted communication devices
US5604801A (en) * 1995-02-03 1997-02-18 International Business Machines Corporation Public key data communications system under control of a portable security device
US5559889A (en) * 1995-03-31 1996-09-24 International Business Machines Corporation System and methods for data encryption using public key cryptography
US6628786B1 (en) * 1997-09-30 2003-09-30 Sun Microsystems, Inc. Distributed state random number generator and method for utilizing same
US6496930B1 (en) * 1997-12-18 2002-12-17 Matsushita Electric Industrial Co., Ltd. Message receiving apparatus and message transmitting apparatus
US20010044901A1 (en) * 1998-03-24 2001-11-22 Symantec Corporation Bubble-protected system for automatic decryption of file data on a per-use basis and automatic re-encryption
US6480096B1 (en) * 1998-07-08 2002-11-12 Motorola, Inc. Method and apparatus for theft deterrence and secure data retrieval in a communication device
JP3414352B2 (en) * 2000-02-03 2003-06-09 日本電気株式会社 Wireless terminal, information processing system and external processing terminal
EP1146685B1 (en) * 2000-04-12 2004-01-14 Matsushita Electric Industrial Co., Ltd. Decryption device
US7197638B1 (en) * 2000-08-21 2007-03-27 Symantec Corporation Unified permissions control for remotely and locally stored files whose informational content may be protected by smart-locking and/or bubble-protection
JP2002124960A (en) * 2000-10-16 2002-04-26 Link Evolution Corp Communication device, communication system, and communication method
US6941456B2 (en) * 2001-05-02 2005-09-06 Sun Microsystems, Inc. Method, system, and program for encrypting files in a computer system
US7925013B1 (en) 2003-06-30 2011-04-12 Conexant Systems, Inc. System for data encryption and decryption of digital data entering and leaving memory
US7577996B1 (en) * 2004-02-06 2009-08-18 Extreme Networks Apparatus, method and system for improving network security
US7823199B1 (en) 2004-02-06 2010-10-26 Extreme Networks Method and system for detecting and preventing access intrusion in a network
US20090249085A1 (en) * 2004-06-29 2009-10-01 Nagracard S.A. Security module and personalization method for such a security module
US7421589B2 (en) * 2004-07-21 2008-09-02 Beachhead Solutions, Inc. System and method for lost data destruction of electronic data stored on a portable electronic device using a security interval
JP4933946B2 (en) * 2007-04-18 2012-05-16 株式会社日立製作所 External storage device and information leakage prevention method
US8583915B1 (en) * 2007-05-31 2013-11-12 Bby Solutions, Inc. Security and authentication systems and methods for personalized portable devices and associated systems
US20100005317A1 (en) * 2007-07-11 2010-01-07 Memory Experts International Inc. Securing temporary data stored in non-volatile memory using volatile memory
US9940484B2 (en) * 2014-12-23 2018-04-10 Intel Corporation Techniques for detecting false positive return-oriented programming attacks

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4418275A (en) * 1979-12-07 1983-11-29 Ncr Corporation Data hashing method and apparatus
US4520232A (en) * 1982-04-30 1985-05-28 Wilson William J Polygraphic encryption-decryption system
US4972472A (en) * 1985-03-15 1990-11-20 Tandem Computers Incorporated Method and apparatus for changing the master key in a cryptographic system
US4797928A (en) * 1987-01-07 1989-01-10 Miu Automation Encryption printed circuit board
US5008938A (en) * 1990-03-09 1991-04-16 Motorola, Inc. Encryption apparatus

Also Published As

Publication number Publication date
GB2282036B (en) 1997-02-05
AU662685B2 (en) 1995-09-07
GB2282036A (en) 1995-03-22
CA2135631C (en) 1999-01-26
WO1994023512A1 (en) 1994-10-13
GB9422583D0 (en) 1995-01-04
AU6442594A (en) 1994-10-24
US5412721A (en) 1995-05-02

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Legal Events

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