安全电子交易secure electronic transaction

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Message Disgest & Digital signature
Plaintext
Plaintext
Internet Message digest1 encrypt with his own decrypt with sender's private key public key
Hash algorithm
Message digest2
Hash algorithm Message digest1
compare
Sender
Receiver
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Double Signature
Merchats
customer
payment information Hash Payment disgest
5. Improvement methods
5.1 Generate identity token
令牌
5.2 Cache certificate
缓存证书
5.3 Divide Security degree.
A级 B级 C级
D级
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Conclusion
1.outstanding characteristic 2. improvements of SET 3.Why SET SET is not widely used
Secure Electronic Transaction
Daiyanfeng 2011213887
Secure Electronic Transaction
Introduction
1
2 3 4 E-commerce security technology architecture
Technologies mainly used in SET The service of SET Improvement methods
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Application system layer Security protocol layer
SSL Protocol、SET Protocol
Digital Signature、CACertification Security authentication layer Message Digest、Digital Certificate
order information Order disgest
Internet
Banks Payment&Order disgest
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The service of SET
1. Ensure confidentiality and integrity of trading information
Symmetric Encryption Asymmetric Encryption Network Security Scan、Firewall
Encryption technology layer
Network service layer
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Technologies mainly used in SET
1) symmetric encryption 2) asymmetric encryption 3) Digital certificates 4) Message digest 5) Digital signature 6) Double signature 7)Digital envelope
2 . Ensure non-repudiation of the trading behavior between merchants and customers 4.3 Ensure the legitimacy of the merchants and customers
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Conclusion
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Introduction
CA
wk.baidu.com
银行
SET
商家
客户
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E-commerce Security Technology Architectur
Confidentiality, Integrity, Availability...