[2012 CodeEngn Conference 07] singi - NFC, Play on real world

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2012 CodeEngn Conference 07 최근 스마트폰의 보급율이 높아지면서 NFC에 대한 관심이 많아졌다. NFC는 10cm 거리에서 기기간의 통신을 가능하게 해주는 근거리 통신 프로토콜이다. NFC에 대한 기본 개념과 통신원리, 국제/국내 표준을 알아보고, 국내 스마트폰에서 NFC가 들어간 장치의 스펙을 알아 본다. 그리고, 어떤 환경에서 NFC서비스가 사용될 수 있는지와 현재 사용되고 있는 서비스들도 간단하게 볼 예정이며 NFC를 이용하여 교통카드를 위조했던 해킹사례를 간단하게 알아본다. 마지막으로, 실제 NFC기기를 프로그래밍하여 이용, 조작을 해보도록 한다. http://codeengn.com/conference/07

Technology

NFC
Play on Real World!!
Speaker : singi
Facebook : @sjh21a
Hackerschool

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Table of Contents

• What is

• A Standard to

• Just For Fun with

What is NFC
Near Field Communication
• 13.56 Mhz – RFID??
• 424 kbit/s
• 15mA (for Reading)
• < 0.2m
• Possible to Read/Write

Where is it? and will be used?
– In SmartPhone (is not you?)
• NFC USIM
– Some Smart Card (ID Card, T-money, …)
– Payment Service Like Square
• Square used only iPhone. (need some device)
– Bluetooth and wifi network
• without pairing?
– A Smart(really?) Devices!
• NFC Keyboard – elecom@japan

NFC USIM! – in my phone
• Galaxy S3 LTE (800,000)
• Micro USIM + NFC
• Spec?

Nexus S used Same NFC Chip

If you don’t have any smart phone…
– Give up NFC Hacking L ?

– Buy RF Module
• EBRF700
• Mifareⓡ, ISO 14443A, 14443B
• Support to Good Test Program
• Here!

So, talking about smart card!
– Do you remember MSR Card?
• Find That Now open your pocket!

–

(contact) (contactless)
smart card has CPU and OS! = COS
(Card Operation System)

A little bit details for smart card

VCC : Power Supply GND : Ground
RST : Reset Signal VPP : Program Voltage(Not used)
CLK : Clock Signal I/O : Input / Output

A Kind of Smart Cards

ATQA : Answer To Request acc. To ISO/IEC 14443-4
SAK : Select Acknowledge, Type A
ATS : Answer To Select acc. To ISO/IEC 1443-4
This table is Not @ All!!
http://ludovic.rousseau.free.fr/softwares/pcsc-tools/smartcard_list.txt

If you need IC chip information?

• Use NXP App with Android – [Example]
– About Iphone? Find it J

About Republic of korea?
• A famous and friendly T-money

• T-money card : KSX6924 (based ISO14443)
• T-money SAM : KSX6923 (based ISO14443)
• Kssn.net (KS), but…L

standard.go.kr

No capture, No C&P, Just Read That!!
But, support to “Windows 32bit” L

If you shy girl & !boy, connect to Facebook. @sjh21a

Thanks.

Reference
• http://nfc-forum.org
• http://www.embeddedworld.co.kr/atl/view.asp?a_id=5495
• http://www.hidglobal.com/korean/page.php?page_id=21#won
• NFC 기술 및 인증동향 - 한국정보통신기술협회
• http://www.e2box.co.kr/ - EBRF700
• http://ko.wikipedia.org/wiki/%EC%8A%A4%EB%A7%88%ED%8A%B8%EC%
B9%B4%EB%93%9C
• http://www.libnfc.org/documentation/hardware/tags/iso14443

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2010 CodeEngn Conference 04 각종 논문 데이터나 기타 연구자료들을 살펴보면 키보드보안의 한계점에 대해 지목하고 그것에 대한 보완 대책을 논의하고 있는 내용이 많다. 물론 그러한 학문적인 접근도 중요하지만, 실제 키로깅을 하고 있는 해커의 입장에서는 어떤 식으로 키입력과 계정을 가져가는지 해커의 접근 방법을 살펴보는 것도 필요하다. 일반적으로 해커들은 커널 레벨이나 하드웨어 지식 베이스에 입각한 난해한 기법보다는, 보다 간편하며 실용적인 방법을 통해 계정을 가져간다. 그리고 그 같은 행위는 현재 키보드보안의 커버 범위를 뛰어넘는 새로운 기법을 보여주는 경우가 대다수이다. 이런 상황을 배경으로 실제 기업에서 발생하고 있는 사례나, 유저의 감염케이스를 리버스 엔지니어링으로 살펴보는 시간을 마련했다. 바이너리 해킹의 예술을 맛볼 수 있는 Art of Keylogging 발표에서 키 입력 탈취에 대한 새로운 트렌드를 소개한다. http://codeengn.com/conference/04

[2010 CodeEngn Conference 04] window31 - Art of Keylogging 키보드보안과 관계없는 키로거들

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2010 CodeEngn Conference 04 2010년 5월 22~24일, 세계 최대의 해커들의 축제인 DEFCON 18의 CTF 예선이 열렸습니다. Kaist 보안동아리 GoN 팀으로 참여하면서 느낀 이번 DEFCON CTF 예선에 대한 전반적인 리뷰와 함께, 여러 문제 분야들 중 Binary l33tness, Pwtent pwnables 분야의 문제들의 풀이를 해보고자 한다. (Defcon 18 CTF 예선전 전체 529팀에서 6위로 본선진출) http://codeengn.com/conference/04

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[2014 CodeEngn Conference 11] 박세한 - IE 1DAY Case Study KO

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[2010 CodeEngn Conference 04] Max - Fighting against Botnet

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[2012 CodeEngn Conference 07] singi - NFC, Play on real world

1. NFC Play on Real World!! Speaker : singi Facebook : @sjh21a Hackerschool www.CodeEngn.com 7th CodeEngn ReverseEngineering Conference

2. Table of Contents • What is • A Standard to • Just For Fun with

3. What is NFC Near Field Communication • 13.56 Mhz – RFID?? • 424 kbit/s • 15mA (for Reading) • < 0.2m • Possible to Read/Write

4. Where is it? and will be used? – In SmartPhone (is not you?) • NFC USIM – Some Smart Card (ID Card, T-money, …) – Payment Service Like Square • Square used only iPhone. (need some device) – Bluetooth and wifi network • without pairing? – A Smart(really?) Devices! • NFC Keyboard – elecom@japan

5. NFC USIM! – in my phone • Galaxy S3 LTE (800,000) • Micro USIM + NFC • Spec? Nexus S used Same NFC Chip

6. If you don’t have any smart phone… – Give up NFC Hacking L ? – Buy RF Module • EBRF700 • Mifareⓡ, ISO 14443A, 14443B • Support to Good Test Program • Here!

7. A Standard to NFC

8. So, talking about smart card! – Do you remember MSR Card? • Find That Now open your pocket! – (contact) (contactless) smart card has CPU and OS! = COS (Card Operation System)

9. A little bit details for smart card VCC : Power Supply GND : Ground RST : Reset Signal VPP : Program Voltage(Not used) CLK : Clock Signal I/O : Input / Output

10. A Kind of Smart Cards ATQA : Answer To Request acc. To ISO/IEC 14443-4 SAK : Select Acknowledge, Type A ATS : Answer To Select acc. To ISO/IEC 1443-4 This table is Not @ All!! http://ludovic.rousseau.free.fr/softwares/pcsc-tools/smartcard_list.txt

11. If you need IC chip information? • Use NXP App with Android – [Example] – About Iphone? Find it J

12. About Republic of korea? • A famous and friendly T-money • T-money card : KSX6924 (based ISO14443) • T-money SAM : KSX6923 (based ISO14443) • Kssn.net (KS), but…L

13. 세상은 돈이 전부다 !!!!!!!!!!!!!!!!!!!!!!!!!!!

14. standard.go.kr No capture, No C&P, Just Read That!! But, support to “Windows 32bit” L

15. Play on Real World! Just For Fun

16. If you shy girl & !boy, connect to Facebook. @sjh21a Thanks.

17. Reference • http://nfc-forum.org • http://www.embeddedworld.co.kr/atl/view.asp?a_id=5495 • http://www.hidglobal.com/korean/page.php?page_id=21#won • NFC 기술 및 인증동향 - 한국정보통신기술협회 • http://www.e2box.co.kr/ - EBRF700 • http://ko.wikipedia.org/wiki/%EC%8A%A4%EB%A7%88%ED%8A%B8%EC% B9%B4%EB%93%9C • http://www.libnfc.org/documentation/hardware/tags/iso14443 www.CodeEngn.com 7th CodeEngn ReverseEngineering Conference

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