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KR970071358A - Method and apparatus for preventing IC card data from being tampered with in the IC card reader - Google Patents

Method and apparatus for preventing IC card data from being tampered with in the IC card reader Download PDF

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Publication number
KR970071358A
KR970071358A KR1019960011582A KR19960011582A KR970071358A KR 970071358 A KR970071358 A KR 970071358A KR 1019960011582 A KR1019960011582 A KR 1019960011582A KR 19960011582 A KR19960011582 A KR 19960011582A KR 970071358 A KR970071358 A KR 970071358A
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KR
South Korea
Prior art keywords
card
data
controller
oscillator
card reader
Prior art date
Application number
KR1019960011582A
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Korean (ko)
Inventor
박철순
Original Assignee
윤학범
주식회사 경덕전자
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.)
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Publication date
Application filed by 윤학범, 주식회사 경덕전자 filed Critical 윤학범
Priority to KR1019960011582A priority Critical patent/KR970071358A/en
Publication of KR970071358A publication Critical patent/KR970071358A/en

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Abstract

본 발명은 기판으로 IC카드를 모방 제작하여 IC카드리더에 삽입하고 IC카드의 데이터를 위·변조할 때 주파수비교기에서 기준주파수발진기의 기준값과 신호주파수를 비교하여 부정한 사용을 차단할 수 있도록 하는 IC카드리더의 IC카드 데이터 위·변조 방지방법 및 장치에 관한 것으로, 이는 카드입구로 삽입된 IC카드의 데이터를 콘트롤러에서 읽기와 쓰기를 하고 그 읽기와 쓰기한 데이터를 D·E·S에서 암호화하여 시스템으로 전송하는 IC카드리더에 있어서, 상기 IC카드리더의 카드입구 상하측에는 센서를 설치하고 그 센서들에서 검출된 신호를 증폭기와 발진기를 통해 주파수비교기로 입력하고, 그 주파수비교기는 센서들에서 입력된 신호와 기준 주파수발진기에서 입력되는 신호를 비교하여 그 신호들이 일치할 때만 콘트롤러를 록킹시켜 IC카드의 데이터를 암호화하기 전에도 부정한 사용을 방지할 수 있도록 함으로서 이룰 수 있는 발명이다.The present invention relates to an IC card which imitates an IC card as a substrate and inserts the IC card into an IC card reader and compares the reference frequency of the reference frequency oscillator and the signal frequency in the frequency comparator when the data of the IC card is modulated, The present invention relates to a method and an apparatus for preventing IC card data from being tampered with, and reading and writing data from an IC card inserted into a card entrance by a controller, A sensor is provided on the upper and lower sides of a card entrance of the IC card reader, and a signal detected by the sensors is input to a frequency comparator through an amplifier and an oscillator, Signal is compared with the signal input from the reference frequency oscillator and the controller is locked only when the signals match. It is an invention that can be achieved by preventing unauthorized use before encrypting the data.

Description

IC카드리더의 IC카드 데이터 위·변조 방지방법 및 장치Method and apparatus for preventing IC card data from being tampered with in the IC card reader

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 일실시예를 보인 분해사시도, 제2도는 본 발명에 의한 IC카드리더의 구성을 보인 블록도, 제3도는 본 발명의 다른 실시예를 보인 분해사시도, 제4도는 일반적인 IC카드리더의 구성을 보인 블록도, 제5도는 IC카드를 위 ·변조하는 일예를 보인 평면도.1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a block diagram showing a configuration of an IC card reader according to the present invention, FIG. 3 is an exploded perspective view showing another embodiment of the present invention, Fig. 5 is a block diagram showing the configuration of the card reader, and Fig. 5 is a plan view showing an example of modifying the IC card.

Claims (4)

IC카드의 데이터를 콘트롤러에서 읽기와 쓰기를 하고, 그 읽기와 쓰기한 데이터를 DㆍEㆍS에서 암호화하여 시스템으로 전송하는 IC카드리더에 있어서, 상기 IC카드리더의 카드입구에 설치된 센서로 정전용량의 변화와 미세한 유도전파를 검출하여 증폭기로 증폭시킨 후 발진기를 통해 주파수 비교기로 입력하여서 기준주파수 발진기에서 입력되는 신호와 비교하여 그 신호들이 일치하면 콘트롤러를 록킹시켜 IC카드의 데이터를 암호화하기 전에도 부정한 사용을 방지할 수 있도록 하여서 됨을 특징으로 하는 IC카드리더의 IC카드 데이터 위·변조 방지방법.An IC card reader that reads and writes data of an IC card from a controller and encrypts the read and written data in D, E, and S and transmits the encrypted data to a system. The IC card reader includes: After detecting the change in capacitance and the minute induction propagation, it is amplified by the amplifier, then inputted to the frequency comparator through the oscillator, compared with the signal input from the reference frequency oscillator, and if the signals match, the controller is locked to encrypt the data of the IC card And preventing unauthorized use of the IC card reader / writer. 카드입구(2)로 삽입된 IC카드(3)의 데이터를 콘트롤러(5)에서 읽기와 쓰기를 하고, 그 읽기와 쓰기한 데이터를 DㆍEㆍS(6)에서 암호화하여 시스템(20)으로 전송하는 IC카드리더(1)에 있어서, 상기 IC카드리더(1)의 카드입구 상하측 내면에는 센서(10)(11)를 설치하고, 그 센서(10)(11)들에서 검출된 신호를 증폭기(13)와 발진기(12)를 통해 주파수비교기(14)로 입력하고, 그 주파수비교기(14)는 센서들에서 입력된 신호와 기준주파수발진기(15)에서 입력되는 신호를 비교하여 그 신호들이 일치하면 콘트롤러(5)를 록킹시켜 IC카드(3)의 데이터를 암호화하기 전에도 부정한 사용을 방지할 수 있도록 하여서 됨을 특징으로 하는 IC카드리더의 IC카드 데이터 위ㆍ변조 방지장치.The controller 5 reads and writes the data of the IC card 3 inserted into the card inlet 2 and the read and written data is encrypted in the D 占 ㆍ S 6 and sent to the system 20 (10) and (11) are provided on the upper and lower inner surfaces of the card inlet of the IC card reader (1), and signals detected by the sensors (10) and (11) The signal is input to the frequency comparator 14 via the amplifier 13 and the oscillator 12 and the frequency comparator 14 compares the signal input from the sensors with the signal input from the reference frequency oscillator 15, And the controller (5) is locked so that unauthorized use of the IC card (3) can be prevented even before encrypting the data of the IC card (3). 제2항에 있어서, 상기 센서(10)(11)를 도체인 금속판(10′)(11′)으로 구성하여서 됨을 특징으로 하는 IC카드리더의 IC카드 데이터 위ㆍ변조 방지 장치.The IC card data tampering preventing apparatus according to claim 2, wherein the sensors (10) and (11) are formed of metal plates (10 ') and (11') as conductors. 제2항에 있어서, 상기 센서(10)(11)를 코일이 권취된 트랜스판(10″)(11″)으로 구성하여서 됨을 특징으로 하는 IC카드리더의 IC카드 데이터 위ㆍ변조 방지장치,The IC card data overwrite prevention apparatus according to claim 2, wherein the sensor (10) (11) is constituted by a coil (10 ") 11" wound with a coil. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960011582A 1996-04-17 1996-04-17 Method and apparatus for preventing IC card data from being tampered with in the IC card reader KR970071358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960011582A KR970071358A (en) 1996-04-17 1996-04-17 Method and apparatus for preventing IC card data from being tampered with in the IC card reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960011582A KR970071358A (en) 1996-04-17 1996-04-17 Method and apparatus for preventing IC card data from being tampered with in the IC card reader

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KR970071358A true KR970071358A (en) 1997-11-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8104690B2 (en) 2008-01-31 2012-01-31 Samsung Electronics Co., Ltd. Smart card system and operating method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8104690B2 (en) 2008-01-31 2012-01-31 Samsung Electronics Co., Ltd. Smart card system and operating method thereof

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