JP3848965B2 - データ処理装置内の命令タイミング制御 - Google Patents

データ処理装置内の命令タイミング制御 Download PDF

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Publication number
JP3848965B2
JP3848965B2 JP2005502328A JP2005502328A JP3848965B2 JP 3848965 B2 JP3848965 B2 JP 3848965B2 JP 2005502328 A JP2005502328 A JP 2005502328A JP 2005502328 A JP2005502328 A JP 2005502328A JP 3848965 B2 JP3848965 B2 JP 3848965B2
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Prior art keywords
instruction
conditional
data
timing mode
processor
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Expired - Lifetime
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JP2005502328A
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English (en)
Japanese (ja)
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JP2006510127A (ja
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ワット、サイモン、チャールズ
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エイアールエム リミテッド
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Priority claimed from GBGB0229068.2A external-priority patent/GB0229068D0/en
Priority claimed from GB0307823A external-priority patent/GB2396229B/en
Application filed by エイアールエム リミテッド filed Critical エイアールエム リミテッド
Publication of JP2006510127A publication Critical patent/JP2006510127A/ja
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F21/755—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 with measures against power attack
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30003—Arrangements for executing specific machine instructions
    • G06F9/3005—Arrangements for executing specific machine instructions to perform operations for flow control
    • G06F9/30058—Conditional branch instructions
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30181—Instruction operation extension or modification
    • G06F9/30189—Instruction operation extension or modification according to execution mode, e.g. mode flag
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3842—Speculative instruction execution
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3861—Recovery, e.g. branch miss-prediction, exception handling
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3867—Concurrent instruction execution, e.g. pipeline or look ahead using instruction pipelines
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3867—Concurrent instruction execution, e.g. pipeline or look ahead using instruction pipelines
    • G06F9/3875—Pipelining a single stage, e.g. superpipelining
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2123—Dummy operation

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Mathematical Physics (AREA)
  • Executing Machine-Instructions (AREA)
  • Storage Device Security (AREA)
  • Advance Control (AREA)
  • Retry When Errors Occur (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Complex Calculations (AREA)
JP2005502328A 2002-12-12 2003-10-06 データ処理装置内の命令タイミング制御 Expired - Lifetime JP3848965B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB0229068.2A GB0229068D0 (en) 2002-12-12 2002-12-12 Instruction timing control within a data processing system
GBGB0302650.7A GB0302650D0 (en) 2002-12-12 2003-02-05 Processing activity masking in a data processing system
GBGB0302646.5A GB0302646D0 (en) 2002-12-12 2003-02-05 Processing activity masking in a data processing system
GB0307823A GB2396229B (en) 2002-12-12 2003-04-04 Processing activity masking in a data processing system
PCT/GB2003/004304 WO2004053685A1 (en) 2002-12-12 2003-10-06 Instruction timing control within a data processing system

Publications (2)

Publication Number Publication Date
JP2006510127A JP2006510127A (ja) 2006-03-23
JP3848965B2 true JP3848965B2 (ja) 2006-11-22

Family

ID=32512449

Family Applications (4)

Application Number Title Priority Date Filing Date
JP2005502328A Expired - Lifetime JP3848965B2 (ja) 2002-12-12 2003-10-06 データ処理装置内の命令タイミング制御
JP2005502326A Expired - Fee Related JP4511461B2 (ja) 2002-12-12 2003-10-06 データ処理システムでの処理動作マスキング
JP2005502329A Pending JP2006510998A (ja) 2002-12-12 2003-10-06 データ処理システム内の処理アクティビティのマスキング
JP2005502327A Expired - Lifetime JP4619288B2 (ja) 2002-12-12 2003-10-06 データ処理システムにおける処理動作マスキング

Family Applications After (3)

Application Number Title Priority Date Filing Date
JP2005502326A Expired - Fee Related JP4511461B2 (ja) 2002-12-12 2003-10-06 データ処理システムでの処理動作マスキング
JP2005502329A Pending JP2006510998A (ja) 2002-12-12 2003-10-06 データ処理システム内の処理アクティビティのマスキング
JP2005502327A Expired - Lifetime JP4619288B2 (ja) 2002-12-12 2003-10-06 データ処理システムにおける処理動作マスキング

Country Status (4)

Country Link
US (4) US7426629B2 (enExample)
JP (4) JP3848965B2 (enExample)
GB (3) GB2406684B (enExample)
WO (4) WO2004053684A2 (enExample)

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Also Published As

Publication number Publication date
WO2004053683A2 (en) 2004-06-24
GB2403572A (en) 2005-01-05
JP2006522375A (ja) 2006-09-28
WO2004053685A1 (en) 2004-06-24
US20060117167A1 (en) 2006-06-01
GB2406943B (en) 2005-10-05
JP4619288B2 (ja) 2011-01-26
US20060036833A1 (en) 2006-02-16
US20060155962A1 (en) 2006-07-13
GB2403572B (en) 2005-11-09
JP4511461B2 (ja) 2010-07-28
GB2406684B (en) 2005-08-24
WO2004053662A2 (en) 2004-06-24
JP2006510998A (ja) 2006-03-30
WO2004053662A3 (en) 2004-08-12
GB2406684A (en) 2005-04-06
US7426629B2 (en) 2008-09-16
WO2004053683A3 (en) 2004-08-05
GB0501017D0 (en) 2005-02-23
GB2406943A (en) 2005-04-13
JP2006510127A (ja) 2006-03-23
US20050289331A1 (en) 2005-12-29
US7313677B2 (en) 2007-12-25
WO2004053684A2 (en) 2004-06-24
JP2006510126A (ja) 2006-03-23
WO2004053684A3 (en) 2004-08-12
US7134003B2 (en) 2006-11-07
GB0502061D0 (en) 2005-03-09
GB0423310D0 (en) 2004-11-24

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