CA2437500A1 - Data encryption system - Google Patents

Data encryption system Download PDF

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Publication number
CA2437500A1
CA2437500A1 CA002437500A CA2437500A CA2437500A1 CA 2437500 A1 CA2437500 A1 CA 2437500A1 CA 002437500 A CA002437500 A CA 002437500A CA 2437500 A CA2437500 A CA 2437500A CA 2437500 A1 CA2437500 A1 CA 2437500A1
Authority
CA
Canada
Prior art keywords
encryption
plain
character
characters
decryption
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
CA002437500A
Other languages
French (fr)
Other versions
CA2437500C (en
Inventor
Kevin M. Henson
Eric Myron Smith
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2437500A1 publication Critical patent/CA2437500A1/en
Application granted granted Critical
Publication of CA2437500C publication Critical patent/CA2437500C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • G09C1/02—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system by using a ciphering code in chart form
    • 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
    • H04L9/0631—Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
    • 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
    • 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
    • H04L2209/20—Manipulating the length of blocks of bits, e.g. padding or block truncation
    • 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
    • H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption

Abstract

A system (100) and method (400, 500) for data encryption and decryption are disclosed. The encryption system is operable at encryption rates in excess of 10 Mbps and is expandable to over 200Mbps. For encryption, plain characters are received, and a key block (120) includes key characters corresponding to the plain characters is accessed. A current key character corresponding to a current plain character is located. A next key character corresponding to a next plain character is located. An offset between the current key character and the next key character is determined to encrypt the plain characters. Aliases are used to facilitate the encryption and decryption. Vector distances of offsets are utilized for the encryption and decryption, using many variables and many dimensions, such as using coordinates.
CA002437500A 2001-02-02 2001-05-15 Data encryption system Expired - Fee Related CA2437500C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26640001P 2001-02-02 2001-02-02
US60/266,400 2001-02-02
PCT/US2001/040737 WO2002063592A2 (en) 2001-02-02 2001-05-15 Data encryption system using key matrix

Publications (2)

Publication Number Publication Date
CA2437500A1 true CA2437500A1 (en) 2002-08-15
CA2437500C CA2437500C (en) 2006-02-21

Family

ID=23014417

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002437500A Expired - Fee Related CA2437500C (en) 2001-02-02 2001-05-15 Data encryption system

Country Status (7)

Country Link
US (5) US20020131590A1 (en)
EP (1) EP1410558B1 (en)
AT (1) ATE300134T1 (en)
AU (1) AU2001259860B2 (en)
CA (1) CA2437500C (en)
DE (1) DE60112130T2 (en)
WO (1) WO2002063592A2 (en)

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Also Published As

Publication number Publication date
US20020141574A1 (en) 2002-10-03
US20020136403A1 (en) 2002-09-26
DE60112130D1 (en) 2005-08-25
WO2002063592A2 (en) 2002-08-15
DE60112130T2 (en) 2006-06-08
US20020131591A1 (en) 2002-09-19
US20020131590A1 (en) 2002-09-19
US6950518B2 (en) 2005-09-27
US20020141573A1 (en) 2002-10-03
AU2001259860B2 (en) 2007-02-15
US6996234B2 (en) 2006-02-07
EP1410558A2 (en) 2004-04-21
EP1410558B1 (en) 2005-07-20
CA2437500C (en) 2006-02-21
WO2002063592A3 (en) 2003-09-18
US7003108B2 (en) 2006-02-21
US7016497B2 (en) 2006-03-21
ATE300134T1 (en) 2005-08-15

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EEER Examination request
MKLA Lapsed

Effective date: 20180515