New! View global litigation for patent families

CA2292575A1 - Device used to implement a block cipher - Google Patents

Device used to implement a block cipher

Info

Publication number
CA2292575A1
CA2292575A1 CA 2292575 CA2292575A CA2292575A1 CA 2292575 A1 CA2292575 A1 CA 2292575A1 CA 2292575 CA2292575 CA 2292575 CA 2292575 A CA2292575 A CA 2292575A CA 2292575 A1 CA2292575 A1 CA 2292575A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
data
arithmetic
device
decoding
coding
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
CA 2292575
Other languages
French (fr)
Other versions
CA2292575C (en )
Inventor
Peter Windirsch
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.)
Deutsche Telekom AG
Original Assignee
Deutsche Telekom Ag
Peter Windirsch
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/06Cryptographic mechanisms or cryptographic arrangements for secret or secure communication 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
    • H04L9/0618Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0637Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/04Masking or blinding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12Details relating to cryptographic hardware or logic circuitry
    • H04L2209/125Parallelization or pipelining, e.g. for accelerating processing of cryptographic operations

Abstract

The invention relates to a device for carrying out a block cipher method, comprising a coding/decoding arithmetic unit (3) to which the data stream of word length j <= n is fed for ciphering. The invention is characterised in that said arithmetic unit (3) comprises several coding/decoding elements (5), each forming one stage of an arithmetic pipeline. The stages of said pipeline are configured in such a way that they work independently of each other in different operating modes and with different codes. Together with the other components and data paths which surround the coding/decoding arithmetic unit (3), the inventive device enables up to p data streams to be coded or decoded at the same time. The word length j <= n and operating mode of each data stream can be chosen independently of the others. The architecture of the device also permits different logical data streams to be processed directly one after the other on the physical channels provided by the hardware resources without any conflict.
CA 2292575 1997-06-07 1998-05-13 Device used to implement a block cipher Expired - Fee Related CA2292575C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1997124072 DE19724072C2 (en) 1997-06-07 1997-06-07 Apparatus for performing a Blockchiffrierverfahrens
DE19724072.0 1997-06-07
PCT/EP1998/002803 WO1998057461A1 (en) 1997-06-07 1998-05-13 Device for carrying out a block cipher method

Publications (2)

Publication Number Publication Date
CA2292575A1 true true CA2292575A1 (en) 1998-12-17
CA2292575C CA2292575C (en) 2007-01-09

Family

ID=7831795

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2292575 Expired - Fee Related CA2292575C (en) 1997-06-07 1998-05-13 Device used to implement a block cipher

Country Status (6)

Country Link
US (1) US6760439B1 (en)
EP (1) EP0986872B1 (en)
JP (1) JP2002508851A (en)
CA (1) CA2292575C (en)
DE (1) DE19724072C2 (en)
WO (1) WO1998057461A1 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60024941T8 (en) * 1999-08-31 2006-08-10 Kabushiki Kaisha Toshiba Encryption method and apparatus, decoding method and apparatus
JP2007184000A (en) * 2000-01-14 2007-07-19 Mitsubishi Electric Corp Method and apparatus for encryption, method and apparatus for decryption, and computer-readable recording medium storing program
US7184549B2 (en) 2000-01-14 2007-02-27 Mitsubishi Denki Kabushiki Kaisha Method and apparatus for encryption, method and apparatus for decryption, and computer-readable medium storing program
DE60042062D1 (en) * 2000-01-14 2009-06-04 Mitsubishi Electric Corp Method and device for encryption or decryption, and computer readable medium for recording the program
US7502463B2 (en) * 2000-12-13 2009-03-10 Broadcom Corporation Methods and apparatus for implementing a cryptography engine
US7142671B2 (en) * 2000-12-13 2006-11-28 Broadcom Corporation Methods and apparatus for implementing a cryptography engine
US7366300B2 (en) * 2000-12-13 2008-04-29 Broadcom Corporation Methods and apparatus for implementing a cryptography engine
US6937727B2 (en) * 2001-06-08 2005-08-30 Corrent Corporation Circuit and method for implementing the advanced encryption standard block cipher algorithm in a system having a plurality of channels
JP2007524923A (en) 2003-05-23 2007-08-30 ワシントン ユニヴァーシティー Intelligent data storage and processing using the Fpga device
US20030231766A1 (en) * 2002-05-30 2003-12-18 Bedros Hanounik Shared control and information bit representing encryption key position selection or new encryption key value
US7215768B2 (en) * 2002-06-25 2007-05-08 Intel Corporation Shared new data and swap signal for an encryption core
WO2004042561A3 (en) * 2002-10-31 2006-03-02 Troy Cherasaro Pipeline accelerator having multiple pipeline units and related computing machine and method
US7496753B2 (en) * 2004-09-02 2009-02-24 International Business Machines Corporation Data encryption interface for reducing encrypt latency impact on standard traffic
US7409558B2 (en) * 2004-09-02 2008-08-05 International Business Machines Corporation Low-latency data decryption interface
GB2426673B (en) * 2005-05-27 2010-02-10 Sony Uk Ltd Data processing apparatus for performing a cryptographic method
US7725719B2 (en) * 2005-11-08 2010-05-25 International Business Machines Corporation Method and system for generating ciphertext and message authentication codes utilizing shared hardware
CN100369074C (en) * 2006-03-02 2008-02-13 西安西电捷通无线网络通信有限公司 Method for realizing encryption/decryption processing in SMS4 cipher algorithm
WO2007121035A3 (en) 2006-03-23 2008-09-18 Exegy Inc Method and system for high throughput blockwise independent encryption/decryption
WO2008031205A1 (en) * 2006-09-13 2008-03-20 Elliptic Semiconductor Inc. Multiple sequential security key encryption - decryption
US8594322B2 (en) * 2007-07-10 2013-11-26 Stmicroelectronics S.R.L. Encoding/decoding apparatus
US8879727B2 (en) * 2007-08-31 2014-11-04 Ip Reservoir, Llc Method and apparatus for hardware-accelerated encryption/decryption
JP5228803B2 (en) * 2008-10-30 2013-07-03 富士通セミコンダクター株式会社 Swap circuit in the common key block cipher and the encryption and decryption circuit with it
US9752369B2 (en) 2011-05-24 2017-09-05 Overhead Door Corporation Barrier operator mechanical transmission assembly
WO2013039952A8 (en) * 2011-09-12 2013-06-27 Microchip Technology Incorporated Code hopping based system with increased security

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078152A (en) * 1976-04-26 1978-03-07 International Business Machines Corporation Block-cipher cryptographic system with chaining
US4195200A (en) * 1976-06-30 1980-03-25 International Business Machines Corporation Key controlled block-cipher cryptographic system employing a multidirectional shift matrix
US4107458A (en) * 1976-08-23 1978-08-15 Constant James N Cipher computer and cryptographic system
US4377862A (en) * 1978-12-06 1983-03-22 The Boeing Company Method of error control in asynchronous communications
US4850019A (en) * 1985-11-08 1989-07-18 Nippon Telegraph And Telephone Corporation Data randomization equipment
DE4016203A1 (en) * 1990-05-19 1991-11-21 Rolf Prof Dr Trautner A method for block encryption of digital data
US5671284A (en) * 1996-04-16 1997-09-23 Vlsi Technology, Inc. Data encryptor having a scalable clock

Also Published As

Publication number Publication date Type
JP2002508851A (en) 2002-03-19 application
EP0986872B1 (en) 2002-08-28 grant
EP0986872A1 (en) 2000-03-22 application
US6760439B1 (en) 2004-07-06 grant
CA2292575C (en) 2007-01-09 grant
DE19724072A1 (en) 1998-12-10 application
WO1998057461A1 (en) 1998-12-17 application
DE19724072C2 (en) 1999-04-01 grant

Similar Documents

Publication Publication Date Title
US5541995A (en) Method and apparatus for decoding non-sequential data packets
US5365530A (en) Error-correction encoding and decoding system
Needham et al. Tea extensions
US6411229B2 (en) Variable length decoder
US5031173A (en) Decoder for added asynchronous bit sequences
US5546420A (en) Methods of and devices for enhancing communications that use spread spectrum technology by using variable code techniques
US20050147239A1 (en) Method for implementing advanced encryption standards using a very long instruction word architecture processor
US20020108030A1 (en) Method and system for performing permutations using permutation instructions based on modified omega and flip stages
JPH01212041A (en) Cryptographic communication system
JPH0340689A (en) Secrecy method for picture data
WO2003026315A1 (en) Coding method, decoding method, coding apparatus, decoding apparatus, image processing system, coding program, and decoding program
Schneier et al. A Performance Comparison of the Five AES Finalists.
US7068192B1 (en) System and method for encoding and decoding variable-length data
JPH0488736A (en) Data transmission system
JPH02288739A (en) Voice coding and decoding transmission system
CA2435933A1 (en) Encoding and decoding procedures of images, devices and corresponding applications
WO2004006075A1 (en) Open type general-purpose attack-resistant cpu, and application system thereof
JPH0787033A (en) Stereo audio signal coder
US20020093978A1 (en) Synchronous protocol encoding and decoding method
JP2004240427A (en) Design method of optimum encrypting function in mobile communication system and optimum encrypting device
JPS6350222A (en) Message certifying device
JPH10322222A (en) Variable length coding and decoding method and system therefor
US20040086116A1 (en) System and method for implementing DES round functions
WO1999029107A3 (en) Method and apparatus for video-on-demand with fast play capability
US20050147161A1 (en) Compression techniques

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed