SSL/TLS Security and Implementation

  1. TLS Handshake Protocol
    1. Handshake Objectives
      1. Protocol Version Negotiation
        1. Cipher Suite Selection
          1. Server Authentication
            1. Optional Client Authentication
              1. Session Key Establishment
                1. Security Parameter Agreement
                2. TLS 1.2 Handshake Process
                  1. Client Hello Message
                    1. Protocol Version Advertisement
                      1. Cipher Suite List
                        1. Compression Methods
                          1. Client Random Value
                            1. Session ID
                              1. Extensions
                                1. Server Name Indication
                                  1. Supported Groups
                                    1. Signature Algorithms
                                  2. Server Hello Message
                                    1. Protocol Version Selection
                                      1. Cipher Suite Selection
                                        1. Compression Method Selection
                                          1. Server Random Value
                                            1. Session ID Assignment
                                              1. Extensions
                                              2. Server Certificate Message
                                                1. Certificate Chain Transmission
                                                  1. Certificate Validation
                                                  2. Server Key Exchange Message
                                                    1. Ephemeral Key Parameters
                                                      1. Digital Signature
                                                      2. Certificate Request Message
                                                        1. Client Certificate Types
                                                          1. Acceptable Certificate Authorities
                                                          2. Server Hello Done Message
                                                            1. Client Certificate Message
                                                              1. Client Certificate Chain
                                                              2. Client Key Exchange Message
                                                                1. Pre-master Secret
                                                                  1. Key Exchange Data
                                                                  2. Certificate Verify Message
                                                                    1. Client Authentication Proof
                                                                    2. Change Cipher Spec Protocol
                                                                      1. Encryption Activation
                                                                      2. Finished Messages
                                                                        1. Handshake Verification
                                                                          1. Message Authentication
                                                                        2. TLS 1.3 Handshake Improvements
                                                                          1. Simplified Handshake Flow
                                                                            1. Single Round Trip
                                                                              1. Reduced Latency
                                                                              2. Enhanced Security Features
                                                                                1. Encrypted Server Certificate
                                                                                  1. Forward Secrecy by Default
                                                                                    1. Removal of Weak Cryptography
                                                                                    2. Zero Round Trip Time Resumption
                                                                                      1. Early Data Transmission
                                                                                        1. Replay Attack Risks
                                                                                          1. Security Considerations
                                                                                        2. Session Management
                                                                                          1. Session Resumption Mechanisms
                                                                                            1. Session ID Resumption
                                                                                              1. Session Ticket Resumption
                                                                                              2. Session State Management
                                                                                                1. Server-Side Session Cache
                                                                                                  1. Client-Side Session Storage
                                                                                                  2. Security Implications
                                                                                                    1. Forward Secrecy Considerations
                                                                                                      1. Session Hijacking Prevention

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                                                                                                  3. Public Key Infrastructure

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                                                                                                  5. Cipher Suite Architecture