Download - Smart card system ppt
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What is a Smart Card?•Can hold up to 32,000 bytes•Newer smart cards have math co-processors•Perform complex encryption routines quickly
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04/08/2023 [email protected] 3
Plastic cards•Magnetic strip.•No security of data•Eg.credit cards
• Electronic memory cards.•Vendor specific
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Construction of Smart Cards
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Construction of Smart CardsI/ORST
RFU RFU
GND
Vpp
Vcc
CLK
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Examples of Smart Cards
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Current Applications• Payphones• Mobile Communications • Banking & Retail• Electronic Purse• Health Care • ID Verification and Access Control
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Antenna
Interfaces of Smart Cards
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Different
Smart Card
Readers
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Start
Welcome note on lcd
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Start
Signals cut by opto coupler
Welcome note on lcd
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Start
Signals cut by opto coupler
Welcome note on lcd
Display the user name
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Start
Signals cut by opto coupler
Welcome note on lcd
Display the user name
Request for password
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Start
Signals cut by opto coupler
Welcome note on lcd
Display the user name
Request for password
Thank You
If OK
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Start
Signals cut by opto coupler
Welcome note on lcd
Display the user name
Request for password
Wrong password
Re enter password
Thank You
If OK
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Advantages
• Flexibility• Security• Portability • Increasing data storage capacity • Reliability.
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Why Smart Cards
• Improve the convenience and security of any transaction.
• Provide tamper-proof storage of user and account identity.
• Provide vital components of system security.• Protect against a full range of security threats
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04/08/2023 [email protected] 18
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04/08/2023 [email protected] 19
Security mechanism• Password
• Card holder’s protection• Cryptographic challenge Response
• Entity authentication• Biometric information
• Person’s identification
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RF SMART CARD SYSTEM
RETINA SENSING SYSTEM
CARD AND FINGER SYSTEM
FINGER IDENTIFICATION SYSTEM
CARD ATTENDANCE SYSTEM
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04/08/2023 [email protected] 21
Operations performedCard is inserted in the terminal Card gets power. OS boots
up. Sends ATR (Answer to reset)
ATR negotiations take place to set up data transfer speeds, capability negotiations etc.
Terminal sends first command to select MF
Card responds with an error (because MF selection is only on password presentation)
Terminal prompts the user to provide password and verifies the pwd.
Card verifies Pwd. Stores a status “Pwd Verified”. Responds “OK”
Terminal sends command to select MF againTerminal sends command to read EF1
Card supplies personal data and responds “OK”
Card responds “OK”
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THANK YOU
HAVE A NICE DAY