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Automated Teller Machine(ATM)

Automated Teller Machine(ATM). Introduction. What is an ATM?. How did ATM work in previous days?. Security problems in early days. Today's ATM. PIN calculation. Security regarding today's ATM. DES Algorithm. Account number: 4506602100091715 Last 5 digits: 91715

asher-maynard
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Automated Teller Machine(ATM)

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Presentation Transcript

  1. Automated Teller Machine(ATM)

  2. Introduction What is an ATM?

  3. How did ATM work in previous days?

  4. Security problems in early days

  5. Today's ATM

  6. PIN calculation

  7. Security regarding today's ATM

  8. DES Algorithm Account number: 4506602100091715 Last 5 digits: 91715 Validation data: 88070123456 Data input to DES algorithm: 8807012345691715 PIN key input to DES algorithm: FEFEFEFEFEFEFEFE Output of DES algorithm: A2CE126C69AEC82D First four digits decimalised (Natural PIN): 0224 A=(1)0 2=2 C=(1)2 E=(1)4 Offset: 6565 Customer PIN: 6789

  9. Technical problems/attacks

  10. Management Problems

  11. Offline repairs of automated tellers

  12. Thank you

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