CA2100234A1 - Commercial Data Masking - Google Patents

Commercial Data Masking

Info

Publication number
CA2100234A1
CA2100234A1 CA2100234A CA2100234A CA2100234A1 CA 2100234 A1 CA2100234 A1 CA 2100234A1 CA 2100234 A CA2100234 A CA 2100234A CA 2100234 A CA2100234 A CA 2100234A CA 2100234 A1 CA2100234 A1 CA 2100234A1
Authority
CA
Canada
Prior art keywords
data
data masking
commercial data
privacy
text
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
CA2100234A
Other languages
French (fr)
Other versions
CA2100234C (en
Inventor
Robert C. Elander
Christopher J. Holloway
Donald B. Johnson
Michael J. Kelly
An V. Le
Paul G. Lubold
Stephen M. Matyas
James D. Randall
John D. Wilkins
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2100234A1 publication Critical patent/CA2100234A1/en
Application granted granted Critical
Publication of CA2100234C publication Critical patent/CA2100234C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • 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
    • H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/04—Masking or blinding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Abstract

A method and system are disclosed for the implementation of a weakened privacy channel. This is achieved through use of a weakened symmetric cryptographic algorithm called commercial data masking. The masked text is created from clear text at one system and may to transported electronically to another system where the masked text may be unmasked to produce the clear text. The reason to use the commercial data masking algorithm for data privacy is that it is exportable to organizations to which products which contain the Data Encryption Algorithm when used for data privacy are not exportable. In addition, a method and system is disclosed by which the key when used for commercial data masking may be transformed into a key that may be used with the Data Encryption Algorithm.
CA002100234A 1992-10-16 1993-07-09 Commercial data masking Expired - Lifetime CA2100234C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US962,951 1992-10-16
US07/962,951 US5323464A (en) 1992-10-16 1992-10-16 Commercial data masking

Publications (2)

Publication Number Publication Date
CA2100234A1 true CA2100234A1 (en) 1994-04-17
CA2100234C CA2100234C (en) 1999-01-19

Family

ID=25506544

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002100234A Expired - Lifetime CA2100234C (en) 1992-10-16 1993-07-09 Commercial data masking

Country Status (5)

Country Link
US (1) US5323464A (en)
EP (1) EP0592808B1 (en)
JP (1) JP2539164B2 (en)
CA (1) CA2100234C (en)
DE (1) DE69328334T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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US8055668B2 (en) 2008-02-13 2011-11-08 Camouflage Software, Inc. Method and system for masking data in a consistent manner across multiple data sources

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8055668B2 (en) 2008-02-13 2011-11-08 Camouflage Software, Inc. Method and system for masking data in a consistent manner across multiple data sources

Also Published As

Publication number Publication date
CA2100234C (en) 1999-01-19
EP0592808B1 (en) 2000-04-12
JP2539164B2 (en) 1996-10-02
EP0592808A3 (en) 1995-01-25
DE69328334T2 (en) 2000-10-19
US5323464A (en) 1994-06-21
EP0592808A2 (en) 1994-04-20
DE69328334D1 (en) 2000-05-18
JPH06202558A (en) 1994-07-22

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130709

MKEC Expiry (correction)

Effective date: 20131009

MKEC Expiry (correction)

Effective date: 20131009