CA2230009A1 - Anti-tamper integrated circuit - Google Patents

Anti-tamper integrated circuit

Info

Publication number
CA2230009A1
CA2230009A1 CA002230009A CA2230009A CA2230009A1 CA 2230009 A1 CA2230009 A1 CA 2230009A1 CA 002230009 A CA002230009 A CA 002230009A CA 2230009 A CA2230009 A CA 2230009A CA 2230009 A1 CA2230009 A1 CA 2230009A1
Authority
CA
Canada
Prior art keywords
power signal
memory
conductive path
integrated circuit
package
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
CA002230009A
Other languages
French (fr)
Other versions
CA2230009C (en
Inventor
Brant Candelore
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.)
Arris Technology Inc
Original Assignee
General Instrument Corp
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 General Instrument Corp filed Critical General Instrument Corp
Publication of CA2230009A1 publication Critical patent/CA2230009A1/en
Application granted granted Critical
Publication of CA2230009C publication Critical patent/CA2230009C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/16—Protection against loss of memory contents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/57—Protection from inspection, reverse engineering or tampering
    • 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
    • G06F21/86—Secure or tamper-resistant housings
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F2221/2143—Clearing memory, e.g. to prevent the data from being stolen
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S257/00—Active solid-state devices, e.g. transistors, solid-state diodes
    • Y10S257/922—Active solid-state devices, e.g. transistors, solid-state diodes with means to prevent inspection of or tampering with an integrated circuit, e.g. "smart card", anti-tamper

Abstract

An anti-tamper integrated circuit (IC) apparatus is adapted for use with an IC that carries an active component, such as a secure processor, which requires a constant power signal to operate.
If the power signal is interrupted, data is erased from a volatile memory of the secure processor. The memory is located within the IC package. An external power signal is coupled to the memory via a conductive path which is carried outside the housing and which may be embedded in a decoder board, micro-module substrate, or smart card body in which the IC
is carried. The conductive path may carry the power signal directly to the memory, or it may carry the power signal to bias a transistor. Removal of the IC package from the decoder board, micro-module substrate or smart card, will open the conductive path and interrupt the power signal to the memory by causing a short circuit or an open circuit. As a result, the data stored in the memory will be lost.
The apparatus therefore deters a pirate from tampering with the IC.
CA002230009A 1997-02-24 1998-02-20 Anti-tamper integrated circuit Expired - Fee Related CA2230009C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/806,530 1997-02-24
US08/806,530 US5880523A (en) 1997-02-24 1997-02-24 Anti-tamper integrated circuit

Publications (2)

Publication Number Publication Date
CA2230009A1 true CA2230009A1 (en) 1998-08-24
CA2230009C CA2230009C (en) 2005-05-03

Family

ID=25194253

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002230009A Expired - Fee Related CA2230009C (en) 1997-02-24 1998-02-20 Anti-tamper integrated circuit

Country Status (9)

Country Link
US (1) US5880523A (en)
EP (1) EP0860881B1 (en)
JP (1) JPH10301858A (en)
KR (1) KR19980071652A (en)
CN (1) CN1202448C (en)
CA (1) CA2230009C (en)
DE (1) DE69818535T2 (en)
ES (1) ES2208984T3 (en)
TW (1) TW375766B (en)

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Also Published As

Publication number Publication date
US5880523A (en) 1999-03-09
EP0860881B1 (en) 2003-10-01
EP0860881A2 (en) 1998-08-26
CA2230009C (en) 2005-05-03
TW375766B (en) 1999-12-01
KR19980071652A (en) 1998-10-26
ES2208984T3 (en) 2004-06-16
CN1202448C (en) 2005-05-18
EP0860881A3 (en) 1999-08-18
DE69818535D1 (en) 2003-11-06
CN1197968A (en) 1998-11-04
DE69818535T2 (en) 2004-08-05
JPH10301858A (en) 1998-11-13

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