- Richard Bhuleskar “At the end of the day, the goals are simple: safety and security” – Jodi Rell.

Slides:

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امنیت شبکه علی فانیان

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Presentation transcript:

- Richard Bhuleskar “At the end of the day, the goals are simple: safety and security” – Jodi Rell

Goals of Security Confidentiality Authenticity Integrity

SSL ► Public Key Cryptography ► Key generation eg. Deffie Hellman ► Encrypt data

Handshake Client Server 1. Available Ciphers, Random number 2. Select Cipher, Random no, Server certificate 3. Encrypted pre-master-secret 4. Compute Keys 5. MAC of handshake messages 6. MAC of handshake messages 4. Compute Keys

SSL Security - MITM Intended connect Alice Bob Trudy Trudy claims as Alice Trudy claims as Bob

Benefits ► Transparent- application and transport layer ► Authentication and Key exchange. ► Communication privacy, Message Integrity.

Conclusion ► Not a complete solution. ► Cannot protect if systems compromised. ► Poor performance