Introduction to Smart Cards

Properties
1. Tamper Resistant Security
2. Information Storage
3. Information Processing
4. Portability
5. Value Added Applications
6. Contact and Contactless
Contactless
1. electromagnetic induction
  1. RFID
2. Active
3. Passive
4. NFC
  1. Can act as the reader or tag
chip
1. RAM
  1. Running Programs
  2. ~8kb
2. Processor
3. EEPROM
  1. Read/Write
  2. Applications
  3. Crypto Keys
  4. ~64kb
4. wire-bonds
5. ROM
  1. READ ONLY (OS)
  2. ~200kb
6. Limitations
  1. No internal power
  2. No clock
  3. Small memory/cpu power
  4. controlled by the ussuer
GSM
1. SIM
  1. Authentication
  2. Encryption
  3. Phonebook
  4. SMS message
  5. SIM/ME interface
    1. Apps STK
Applications
1. A3/8 - SIM Cards
  1. Secret key ki
  2. IMSI
  3. SIM Toolkit
    1. Menus
    2. Profile Download
2. EMV
  1. Offline Authentication Static Data
  2. card details signed with issuer cert
    1. root cert known to Acquirer
3. Satelite TV Cards
  1. DRM
4. Smart ID
swipe cards
1. Low Cost
2. Skimming
3. Counterfeiting
OS Types
1. Multos
  1. Secure
2. Java Card
  1. JVM
  2. popular
OTA
1. Roaming Lists
2. Bugs/Rebranding
3. SIM 03.48
4. need senative keys
Attacks
1. Logical
  1. brute force
  2. Overflow
  3. bugs/errors
2. Physical
  1. Probe Circuit
  2. Change Voltages/temperature
  3. Current/Physical Barriers
  4. Encrypt system busses
3. Side Channel
  1. DPA - Differential Power Analysis
  2. DFA - Differential Fault Analysis
  3. Timing Attacks
  4. RF Emission monitoring
security
1. PINs
  1. Log Failed attempts counter
  2. Req. to modify card
2. SIM
  1. Secured Command Packet Structure

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Introduction to Smart Cards

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	Erstellt von MattSmith129 vor etwa 9 Jahre