WO1998047060A3 - Systems and methods for protecting access to encrypted information - Google Patents

Systems and methods for protecting access to encrypted information Download PDF

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Publication number
WO1998047060A3
WO1998047060A3 PCT/US1998/006665 US9806665W WO9847060A3 WO 1998047060 A3 WO1998047060 A3 WO 1998047060A3 US 9806665 W US9806665 W US 9806665W WO 9847060 A3 WO9847060 A3 WO 9847060A3
Authority
WO
WIPO (PCT)
Prior art keywords
systems
methods
encrypted information
protecting access
capability
Prior art date
Application number
PCT/US1998/006665
Other languages
French (fr)
Other versions
WO1998047060A2 (en
WO1998047060A9 (en
Inventor
Wendell L Little
Stephen M Curry
Donald W Loomis
Conrad F Schlundt
Original Assignee
Dallas Semiconductor
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 Dallas Semiconductor filed Critical Dallas Semiconductor
Priority to AU87556/98A priority Critical patent/AU8755698A/en
Publication of WO1998047060A2 publication Critical patent/WO1998047060A2/en
Publication of WO1998047060A3 publication Critical patent/WO1998047060A3/en
Publication of WO1998047060A9 publication Critical patent/WO1998047060A9/en

Links

Classifications

    • 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
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1408—Protection against unauthorised use of memory or access to memory by using cryptography
    • 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
    • G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
    • G06F21/55—Detecting local intrusion or implementing counter-measures
    • G06F21/554—Detecting local intrusion or implementing counter-measures involving event detection and direct action
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
    • G11C29/12—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
    • G11C29/46—Test trigger logic

Abstract

A microcontroller communicating via a data path and an address path with a memory block containing encrypted contents, the microcontroller including the capability for detecting resets effectuated in the wake of an unauthorized attempt to gain access to the encrypted contents and the capability of evading such an unauthorized attempt.
PCT/US1998/006665 1997-04-14 1998-04-03 Systems and methods for protecting access to encrypted information WO1998047060A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU87556/98A AU8755698A (en) 1997-04-14 1998-04-03 Systems and methods for protecting access to encrypted information

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/837,145 1997-04-14
US08/837,145 US6272637B1 (en) 1997-04-14 1997-04-14 Systems and methods for protecting access to encrypted information

Publications (3)

Publication Number Publication Date
WO1998047060A2 WO1998047060A2 (en) 1998-10-22
WO1998047060A3 true WO1998047060A3 (en) 1999-03-25
WO1998047060A9 WO1998047060A9 (en) 1999-04-29

Family

ID=25273642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/006665 WO1998047060A2 (en) 1997-04-14 1998-04-03 Systems and methods for protecting access to encrypted information

Country Status (6)

Country Link
US (1) US6272637B1 (en)
AR (1) AR012409A1 (en)
AU (1) AU8755698A (en)
TW (1) TW460768B (en)
WO (1) WO1998047060A2 (en)
ZA (1) ZA983108B (en)

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Also Published As

Publication number Publication date
TW460768B (en) 2001-10-21
US6272637B1 (en) 2001-08-07
WO1998047060A2 (en) 1998-10-22
AU8755698A (en) 1998-11-11
ZA983108B (en) 1998-10-20
WO1998047060A9 (en) 1999-04-29
AR012409A1 (en) 2000-10-18

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