tls handshake

Classic three-way handshake: (# add, "handshake" refers to the link from the left to the right in the figure) The classic four-way handshake closure diagram: TCP is the transmission control protocol used by the host to control the host layer. It provides reliable connection services and uses three handshakes to establish a connection: the bit code is the TCP fla

Classic three-way handshake: (# add, "handshake" refers to the link from the left to the right in the figure)The classic four-way handshake closure diagram:TCP is the transmission control protocol used by the host to control the host layer. It provides reliable connection services and uses three handshakes to establish a connection: the bit code is the tcp flag b

the identities of the server and the client, and are used for asymmetric encryption during key exchange. After the key exchange is complete, you can use this key for symmetric encryption of communication data. The specific encryption algorithm is obtained through mutual negotiation between the client and the server. Because of the different SSL/TLS libraries and different user configurations of the server and client, the list of Algorithms supported

[Linux] linuxtcp three-way handshake and four-way handshake1. What is TCP? 7-layer OSI model TCP is on the fourth layer -- the Transport layer, and the data on the fourth layer is the Segment-> message. IP address on Layer 3-Network layer, data on Layer 3 is called Packet-"data Packet ARP on the second layer -- Data Link layer; on the second layer, we call it Frame-"Frame. When data is sent from the application layer, header information is added

TCP (Transmission Control Protocol) Transmission Control Protocol TCP is the transmission control protocol used by the host to control the host layer. It provides reliable connection services and uses three handshakes to establish a connection: The location code is the TCP flag. There are 6 types of tags: SYN (synchronous established online) ack (acknowledgement confirmation) Psh (push transfer) Fin (finish ended) RST (reset) URG (Urgent urgent) Sequence Number acknowledge number (confirmation n

Introduction to Ssl/tls/jsse:1) SSL/TLS protocol operating mechanism2) graphical SSL/TLS protocol3) Use Wireshark to observe the SSL/TLS handshake process4) The Java implementation of SSL/TLS--jsse(i) Creating a keystore using Key

communication in the "handshake phase" is clear1. Client making a request (ClientHello)C provides information to S as follows: Supported protocol versions, such as TLS version 1.0. A random number generated by a client that is later used to generate a "conversation key". Supported encryption methods, such as RSA public key cryptography. The supported compression methods. 2. Server

The TCP/IP state machine, as shown in:In the TCP/IP protocol, the TCP protocol provides a reliable connection service with a three-time handshake to establish a connection, as shown in 1. (SYN packet indicates flag bit SYN=1,ACK packet indicates flag bit Ack=1,syn+ack package represents flag bit syn=1,ack=1)(1) First handshake: When a connection is established, client A sends a SYN packet (SEQ_NUMBER=J) to

TCP three-way handshake and four-way handshake Three-way handshake:Three handshakes are required to establish TCP. The Client sends the connection request message first. The Server segment receives the connection and replies to the ACK message, and allocates resources for the connection. After the Client receives the ACK packet, it also generates an ACK packet to the Server segment and allocates resources s

Original link Address: http://www.2cto.com/net/201310/251896.html Three-time handshake and four-time handshake process resolution for TCP/IP protocol One, TCP message formatFor more information on TCP/IP protocol, see the three volumes of the TCP/IP protocol. The following is a TCP message format diagram: Figure 1 TCP Message FormatThere are several fields that need to be highlighted below:(1) Serial number

Three-way handshake and four-way handshake for TCP/IP protocol I. TCP Message formatFor more information about the TCP/IP protocol, see "TCP/IP protocol details. The following figure shows the TCP packet format: Figure 1 fields in the TCP packet format need to be described below: (1) sequence number: Seq number, which occupies 32 bits. It is used to identify the byte stream sent from the TCP source end to

Three-time handshake and four-time handshake process resolution for TCP/IP protocol One, TCP message formatFor more information on TCP/IP protocol, see the three volumes of the TCP/IP protocol. The following is a TCP message format diagram:Figure 1 TCP Message FormatThere are several fields in the diagram above that need to be highlighted below:(1) Serial number: SEQ sequence number, which is 32 bits, is us

Document directory In TCP/IP, TCP provides reliable connection services and uses three handshakes to establish a connection, as shown in figure 1. In TCP/IP, TCP provides reliable connection services and uses three handshakes to establish a connection, as shown in figure 1. (1) first handshake: when a connection is established, client a sends the SYN Packet (SYN = J) to server B and enters the syn_send status, waiting for confirmation from server

Analysis of three-way handshake and four-way handshake procedures of TCP/IP protocolI. TCP Message formatFor more information about the TCP/IP protocol, see "TCP/IP protocol details. The following figure shows the TCP packet format:Figure 1 TCP Message formatThere are several fields that need to be described below:(1) sequence number: Seq number, which occupies 32 bits. It is used to identify the byte strea

one, TCP message formatThe following is a TCP message format diagram:There are several fields that need to be highlighted below:(1) serial number: SEQ sequence number, which is 32 bits, is used to identify the byte stream sent from the TCP source end to the destination, which is flagged when the initiator sends the data. (2) Confirm the serial number: ACK number, accounting for 32 bits, only the ACK mark bit is 1 o'clock, confirm the ordinal field is valid, ack=seq+1. (3) sign: A total of 6, nam

Compared with socket developers, the TCP creation and link Division processes are automatically created by the TCP/IP protocol stack. therefore, developers do not need to control this process. however, it is helpful to understand the underlying TCP operation mechanism.In addition, a written examination such as a network protocol engineer is almost mandatory. the enthusiasm of the company for this issue is beyond my expectation :-). This problem is sometimes emphasized before the interview in the

1. TCP (Transmission Control Protocol) Transmission Control Protocol TCP is the transmission control protocol used by the host to control the host layer. It provides reliable connection services and uses three handshakes to establish a connection: 2. Three-way handshake The first handshake: host a sends a packet with a SYN = 1, generates a data packet with seq = x at random to the server, and host B is know

Compared with socket developers, the TCP creation and link Division processes are automatically created by the TCP/IP protocol stack. therefore, developers do not need to control this process. however, it is helpful to understand the underlying TCP operation mechanism.In addition, a written examination such as a network protocol engineer is almost mandatory. the enthusiasm of the company for this issue is beyond my expectation :-). This problem is sometimes emphasized before the interview in the