AU2002227930A1 - Cryptographic processor - Google Patents

Cryptographic processor

Info

Publication number
AU2002227930A1
AU2002227930A1 AU2002227930A AU2793002A AU2002227930A1 AU 2002227930 A1 AU2002227930 A1 AU 2002227930A1 AU 2002227930 A AU2002227930 A AU 2002227930A AU 2793002 A AU2793002 A AU 2793002A AU 2002227930 A1 AU2002227930 A1 AU 2002227930A1
Authority
AU
Australia
Prior art keywords
coprocessors
cryptographic processor
cryptographic
central processing
processing unit
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.)
Abandoned
Application number
AU2002227930A
Inventor
Astrid Elbe
Norbert Janssen
Holger Sedlak
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.)
Infineon Technologies AG
Original Assignee
Infineon Technologies AG
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 Infineon Technologies AG filed Critical Infineon Technologies AG
Publication of AU2002227930A1 publication Critical patent/AU2002227930A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/72—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using residue arithmetic
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
    • G06F21/72—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
    • G06F21/75—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information by inhibiting the analysis of circuitry or operation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/72—Indexing scheme relating to groups G06F7/72 - G06F7/729
    • G06F2207/7219—Countermeasures against side channel or fault attacks
    • G06F2207/7223—Randomisation as countermeasure against side channel attacks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/72—Indexing scheme relating to groups G06F7/72 - G06F7/729
    • G06F2207/7219—Countermeasures against side channel or fault attacks
    • G06F2207/7266—Hardware adaptation, e.g. dual rail logic; calculate add and double simultaneously

Abstract

A cryptographic processor for performing operations for cryptographic applications comprises a plurality of coprocessors, each coprocessor having a control unit and an arithmetic unit, a central processing unit for controlling said plurality of coprocessors and a bus for connecting each coprocessor to the central processing unit. The central processing unit, the plurality of coprocessors and the bus are integrated an one single chip. The chip further comprises a common power supply terminal for feeding said plurality of coprocessors. By way of parallel connection of various coprocessors, there is obtained an the one hand an increase in throughput and an the other hand an improvement in security of the cryptographic processor with respect to attacks that are based an the evaluation of power profiles of the cryptographic processor, since power profiles of a least two coprocessors are superimposed. Furthermore, the cryptographic processor, by utilization of different coprocessors, may also be implemented as a multifunctional cryptographic processor so as to be suitable for a multiplicity of different cryptographic algorithms.
AU2002227930A 2000-12-13 2001-11-16 Cryptographic processor Abandoned AU2002227930A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10061998A DE10061998A1 (en) 2000-12-13 2000-12-13 The cryptographic processor
DE10061998.3 2000-12-13
PCT/EP2001/013279 WO2002048857A2 (en) 2000-12-13 2001-11-16 Cryptographic processor

Publications (1)

Publication Number Publication Date
AU2002227930A1 true AU2002227930A1 (en) 2002-06-24

Family

ID=7666918

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002227930A Abandoned AU2002227930A1 (en) 2000-12-13 2001-11-16 Cryptographic processor

Country Status (11)

Country Link
US (1) US20040039928A1 (en)
EP (1) EP1342154B1 (en)
JP (1) JP2004516706A (en)
KR (1) KR100568393B1 (en)
CN (1) CN100429618C (en)
AT (1) ATE264518T1 (en)
AU (1) AU2002227930A1 (en)
DE (2) DE10061998A1 (en)
ES (1) ES2219581T3 (en)
TW (1) TW526450B (en)
WO (1) WO2002048857A2 (en)

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Also Published As

Publication number Publication date
JP2004516706A (en) 2004-06-03
CN1481526A (en) 2004-03-10
WO2002048857A2 (en) 2002-06-20
KR100568393B1 (en) 2006-04-05
WO2002048857A3 (en) 2002-09-19
ATE264518T1 (en) 2004-04-15
DE50102018D1 (en) 2004-05-19
CN100429618C (en) 2008-10-29
KR20030081348A (en) 2003-10-17
EP1342154B1 (en) 2004-04-14
US20040039928A1 (en) 2004-02-26
ES2219581T3 (en) 2004-12-01
TW526450B (en) 2003-04-01
EP1342154A2 (en) 2003-09-10
DE10061998A1 (en) 2002-07-18

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