Server send Encrypted Handshake Message, The corresponding packages are as follows ：ġ6. Client reply ACK, The corresponding packages are as follows ：ġ5. Step 1 and 3, The client and server exchange random numbers, Through this random number, The client and server will generate the pre master key, This package means to tell the client, I'm now using the master key for encryption （ Client random number + Server random number + Pre master key = Master key ）.ġ4. Server send Change Cipher Spec The corresponding packages are as follows ： Server reply ACK, Corresponding to this package ：ġ3. The purpose of this packet is to tell the opposite end what data it received during the whole handshake process, What data was sent, To ensure that no one in the middle tampers with the message. The client sends Encrypted Handshake Message The corresponding packages are as follows ： The server will reply after receiving it ACK The corresponding packages are as follows ：ġ1. Step 1 and 3, The client and server exchange random numbers, Through this random number, The client and server will generate the pre master key, The meaning of this package is to tell the server, I'm now using the master key for encryption （ Client random number + Server random number + Pre master key = Master key ）.ġ0. The client sends Change Cipher Spec The corresponding packages are as follows ： After the server receives it, reply ACK, The corresponding packages are as follows ：ĩ. The client wants to prove that it has the certificate, You need to sign a piece of data with the private key to the server for verification, See if the server can use the client's public key for signature verification.
② The customer service end sent a non message 0 Certificate of length.
① The server obtains the client certificate Send out Certificate Verify This type of handshake requires 2 Prerequisites ： The corresponding packages are as follows The server will reply after receiving it ACK The corresponding packages are as follows ： The client sends its own certificate, The handshake type is Client Key ExchangeĪmong Handshake Protocol by Client Key Exchange.Ħ. Client received Server Hello after, reply Ackĥ. HandShaker est une application de bureau qui vous permet de gérer toutes les données de votre smartphone ou de votre tablette depuis votre ordinateur. Cipher Suite Select the encryption sleeve for. The server sends its own random number and selects an encryption set and server certificate to the client, that is Server Hello After a successful handshake, The client sends its own supported encryption sleeve, And random numbers to the server, That is to say Client HelloĢ. The first three SYN、SYN ACK、ACK yes TCP Three handshakes, Don't say.
Only the connection process is studied here.
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