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CN1291319A - 具有防探保护功能的数据载体 - Google Patents

具有防探保护功能的数据载体 Download PDF

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Publication number
CN1291319A
CN1291319A CN99803211A CN99803211A CN1291319A CN 1291319 A CN1291319 A CN 1291319A CN 99803211 A CN99803211 A CN 99803211A CN 99803211 A CN99803211 A CN 99803211A CN 1291319 A CN1291319 A CN 1291319A
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data carrier
external power
power supply
disconnection
data processing
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CN1149510C (zh
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P·蒂林格
E·里格尔
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Koninklijke Philips NV
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Koninklijke Philips Electronics NV
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • G07F7/1008—Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/18—Constructional details
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0806—Details of the card
    • G07F7/0813—Specific details related to card security
    • G07F7/082—Features insuring the integrity of the data on or in the card

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Business, Economics & Management (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Accounting & Taxation (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Credit Cards Or The Like (AREA)
  • Power Sources (AREA)
  • Storage Device Security (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Materials For Medical Uses (AREA)

Abstract

一种具有数据处理器件的数据载体中,处理器件中既配置有内部电源也配置有外部电源,提出在该数据载体中配置至少一个开关装置,以便暂时断开外部电源,从而无法取得敏感数据。

Description

具有防探保护功能的数据载体
本发明涉及一种带有数据处理器件的数据载体，和一种具有用于这种数据载体的数据处理器件的电子元件。
最近已出现对数据载体的安全性的疑问，指责称通过观测这种数据载体的功率消耗可以发现与安全性相关的数据。
本发明的目的是确保这类企图无法成功。
此目的是这样达到的，根据本发明，给具备外部电源的数据载体也配备一个内部电源，并在数据载体中配置至少一个开关装置，以实现外部电源的暂时断开。
本发明的优点在于，外部电源的断开(最好是在数据处理器件进行与安全性相关的操作的期间或至少部分的期间内进行)可挫败这种欺诈行为的企图。
本发明的具有优点的实施例描述为，所述外部电源的断开是在所述数据处理器件的预定的操作状态的至少一部分的期间内进行的；将(再充电式)电池、电容器或太阳能电池设置为所述内部电源；在取消外部电源的断开之前，对所述内部电源进行放电操作或装载操作，该操作通过随机控制进行或进行至一个预定的值。
下面详细说明本发明。
配置有例如所谓的芯片卡的数据处理器件的数据载体具有保护与安全性相关的交易(例如自动货币兑换机中的现金兑换)的测试功能；这种测试功能用来测试交易的合法性。为验证合法性，采用例如个人识别号码(PIN)。PIN可采用键入算法在数据载体的数据处理器件中测试。数据载体的电源通常是通过触点或在数据载体中转换成直流电的交流电的感应而实现的。
图1示出一个所谓的芯片卡1，它带有一个接触区2和一个埋置芯片3。芯片3通过内部导线4与接触区2连接。
为了确实防止在至少交易合法性验证过程中通过外加因而是可测的电流消耗或通过经电流引线施加的信号而窃取有关合法性键码的信息，用断开装置(例如开关)断开通往外部电流源的电源引线。这样就可避免内部操作产生的信号到达外部环境。至少在此期间，数据处理器件的供电采用的是一个内部电源。适于此目的的有例如由一个读出装置显示的可充电电池、太阳能电池或按比例选取的电容器，从而确保至少在外部电源断开期间的供电。超出该时间的供电是不需要的，使得确保所要求的外部电源的断开步骤。用于掩饰操作时间的目的而断开外部电源的持续时间不仅可由数据处理器件本身控制，而且还可以例如以时间控制的方式控制，或者直至内部电源的电能减少到一个给定值为止。
图2示出芯片3的一个最佳实施例的内部结构。芯片内配置有数据处理部分5，在其中进行与安全性相关的的操作。为此目的，数据处理部分5连接至接触区2，即连接至用于从／向数据处理部分传输数据的各触点。接触区2的电流源触点V连接至一个用作所述断开器件的第一开关6。第一开关6的另一端连接至数据处理部分5的电源输入端。连接至数据处理部分5的这个电源输入端还有用作所述内部电源的一个电容器7和用作放电器件的一个第二开关8。第一开关6和第二开关8由电源控制电路9控制。数据处理部分5、第一和第二开关6、8、电容器7和电源控制电路9最好设置在单一的芯片上，使得较难通过开启芯片卡1而使该电路的各部分的作用消失。
当内部电源不能是按比例设计的、从而不能在单一的断开期间内完成与安全性相关的各项操作时，与安全性相关的各项操作最好再划分成多个子操作；这样，内部电源应能够至少为各子操作供电。因此，由内部电源供电的电路元件至少在各子操作期间是断开外部电源的。
举例而言，外部电源的断开是由开关装置触发的，该开关装置的设置方式最好是使内外部电源的引线之间仅有弱耦合电容出现。
此外，为掩盖任何容性耦合的小信号或由辐照产生的小信号，可以通过连接至外部电源的引线而施加噪声信号或屏蔽信号或叠加信号。
当用电容器用作内部电源时，例如可采用设在芯片上的支持电容器和平滑电容器。这些电容器经外部电源在敏感的的内部操作或子操作期间放电，在各子操作之间或操作之后再充电。在再充电之前，内部电源最好总是调节到同一个放电状态或因偶然的功率消耗而不同的充电状态。于是，在外电源断开期间如算数操作的敏感信息就不能通过测定用于再充电所需的电流而获取。

Claims (4)

1．一种带有配置有一个外部电源和一个内部电源的数据处理器件的数据载体，所述数据载体中配置至少一个开关装置，以实现外部电源的暂时断开。
2．根据权利要求1所述的数据载体，其特征在于，所述外部电源的断开是在所述数据处理器件的预定的操作状态的至少一部分的期间内进行的。
3．根据权利要求1或2所述的数据载体，其特征在于，将(再充电式)电池、电容器或太阳能电池设置为所述内部电源。
4．根据权利要求1、2或3所述的数据载体，其特征在于，在取消外部电源的断开之前，对所述内部电源进行放电操作或装载操作，该操作通过随机控制进行或进行至一个预定的值。
CNB998032115A 1998-10-30 1999-10-27 具有防探保护功能的数据载体 Expired - Fee Related CN1149510C (zh)

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DE19850293A DE19850293A1 (de) 1998-10-30 1998-10-30 Datenträger mit Kompromittierungsschutz
DE19850293.1 1998-10-30

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CN1291319A true CN1291319A (zh) 2001-04-11
CN1149510C CN1149510C (zh) 2004-05-12

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US (1) US6507130B1 (zh)
EP (1) EP1048013B1 (zh)
JP (1) JP2002529829A (zh)
KR (1) KR100720200B1 (zh)
CN (1) CN1149510C (zh)
AT (1) ATE352080T1 (zh)
DE (2) DE19850293A1 (zh)
WO (1) WO2000026868A1 (zh)

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KR20010040312A (ko) 2001-05-15
WO2000026868A1 (en) 2000-05-11
US6507130B1 (en) 2003-01-14
DE19850293A1 (de) 2000-05-04
DE69934873T2 (de) 2007-10-18
EP1048013A1 (en) 2000-11-02
EP1048013B1 (en) 2007-01-17
DE69934873D1 (de) 2007-03-08
JP2002529829A (ja) 2002-09-10
ATE352080T1 (de) 2007-02-15
KR100720200B1 (ko) 2007-05-21
CN1149510C (zh) 2004-05-12

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