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SSL/TLS及证书概述【转】
SSL/TLS及证书概述
握手的交互图：
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| +--------+ +--------+
| | 1. ClientHello | |
| |------------------------------------->| |
| | | |
| | 2. ServerHello | |
| | 3. Certificate | |
| | 4. ServerKeyExchange (optional) | |
| | 5. CertificateRequest (optional) | |
| | 6. ServerHelloDone | |
| |<------------------------------------ | |
| Client | | Server |
| | 7. Certificate (optional) | |
| | 8. ClientKeyExchange | |
| | 9. CertificateVerify (optional) | |
| | 10. Finished | |
| |------------------------------------> | |
| | | |
| | 11. Finished | |
| |<------------------------------------ | |
+--------+ +--------+
|