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SSL and E-Payment Security: How It Works and Algorithm of Diffie-Hellman, Slides of Fundamentals of E-Commerce

Fakir Mohan UniversityFundamentals of E-Commerce

The process of ssl (secure sockets layer) communication and e-payment system security. It includes the steps of ssl session key generation and encryption, as well as the importance of web security and computer security. Additionally, it presents the algorithm of diffie-hellman, a method for secure key exchange between two parties over an insecure channel.

Typology: Slides

2012/2013

Uploaded on 07/29/2013

sharad_984
sharad_984 🇮🇳

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SSL: How It Works
1. Signed VISIT CARD is sent to us
2. We verify the VISIT CARD
4. We generate a SESSION KEY
5. We encrypt the SESSION KEY with the server’s PUBLIC KEY
6. We send encrypted SESSION KEY to server
8. Now a two-way encrypted communication is possible
3. We extract server PUBLIC KEY from the VISIT CARD
7. Server decrypts the SESSION KEY with its PRIVATE KEY
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Download SSL and E-Payment Security: How It Works and Algorithm of Diffie-Hellman and more Slides Fundamentals of E-Commerce in PDF only on Docsity!

SSL: How It Works

  1. Signed VISIT CARD is sent to us
    1. We verify the VISIT CARD3. We extract server PUBLIC KEY from the VISIT CARD4. We generate a SESSION KEY5. We encrypt the SESSION KEY with the server’s PUBLIC KEY6. We send encrypted SESSION KEY to server7. Server decrypts the SESSION KEY with its PRIVATE KEY 8. Now a two-way encrypted communication is possible

Electronic Payment Revisited CUSTOMER

SHOP

CUSTOMER’S

BANK

SHOP’S BANK

CARD PAYMENT SYSTEM 1

and now…Can you feel safe in the e-world?

Can you feel safe in the e-world? ^ Web security is not "all or nothing"– it is a matter of degree ^ More security – more reduced your risk ^ Reduce risk as much as practical (affordable) ^ Take additional measures for quick recoveryin case of a security incident ^ Computer Security is not just a product youcan purchase, it must be an integrated partof the organisation and its operation

Appendix: Algorithm of Diffy & Hellman^ Bob and Alice want to agree a secret keyhoweverThey have only a public channel tocommunicate ^ PROBLEM: How to keep the agreed numbersecret if all the communication between themmay be intercepted?