Communication in automatic teller machine (atm)
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This presentation is about communication in ATM machine including protocols, network, encryption method, operating system of ATM, basic hardware, transaction process etc.
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Communication in automatic teller machine (atm)
- 1. Communication in Automatic Teller Machine (ATM)
- 2. Knowing in Automatic Teller Machine (ATM) A block diagram of an ATM
- 3. Hardware ATM hardware that we often use in our life
- 4. Software VS.
- 5. Software Linux Penguin-OS on ATMs in Brazil Bank of Philippine running Windows XP OS
- 6. State-Chart for One Transaction Getting Specifics Sendingto Bank Handling InvalidPin Completing Transaction Printing Receipt Askingifcustomer wantsanother Cancelled Specificsentered Disapproved (exceptinvalidPIN) ApprovedInvalidPIN Approved Cancelled Not Cancelled Toomany InvalidPINs Disapproved (exceptinvalidPIN) OrCancelled
- 7. ATM Transaction Processing Provider DataCenter TANDEM CoreBranch -GPRS -3G -ADSL Encryption Encryption Encryption ATMMachine Encryption=3DESor AES-256bits Branch=AES-256bits ATMMachine=3DES DisasterRecoverySite Encryption Encryption Encryption NormalConnection BackupConnection
- 8. Branch Transaction Processing Provider1 DataCenter TANDEM CoreBranch Encryption Encryption Encryption=3DESor AES-256bits Branch=AES-256bits ATMMachine=3DES DisasterRecoverySite Encryption Encryption Encryption Branch Provider2 MPLSL2 (Speed512-1024kbps) MPLSL1 (Speed512-1024kbps) NormalConnection BackupConnection
- 9. DDN (Digital Data Network) • Point to point • Accuracy • Fast • Secure • Backup Connection • High ROI • High cost (compare to other technologies)
- 11. MPLS VPN (Multi Protocol Label Switching Virtual Private Network) • Point to point, Point to multi-point • VPN • Leverage existing ATM hardware • Ultra fast forwarding • IP Traffic Engineering • Constraint-based Routing • Controllable tunneling mechanism • Voice/Video on IP • QoS constraints • Cost effective (compare to other technologies)
- 13. DDN vs. MPLS Feature DDN MPLS Connection Type Point to Point Point to Point, Point to Multi-Point Disaster Recovery Link No Yes VPN Ability No Yes Price High* Low* *Compare to other technologies
- 14. 3DES (Triple Data Encryption Algorithm) • Most widely used algorithm • Pioneered by IBM • It is symmetric crypto system • Developed to protect sensitive, unclassified, US government, Computer data. • Used to provide authentication of electronic funds transfer messages.
- 15. AES-256bits (Advanced Encryption Standard) • Designed simple • Low memory cost • High speed algorithm • The key used to decrypt and encrypt is same • Cipher text and plain text are same size • Fast both in Software and Hardware
- 16. AES-256bits vs. 3DES** Feature AES 3DES Description Advanced Encryption Standard Triple Data Encryption Standard Timeline Official standard since 2001 Standardized 1997 Type of algorithm Symmetric Symmetric Key size (bits) 256 168 Speed High Low Time to crack (assume a machine could try 255 key per second - NIST) 149 trillion years 4.6 billon years Resource consumption Low Medium **“AES can encrypt data much faster than Triple- DES, a DES enhancement which essentially
- 17. Q&A