证书也叫 digital certificate 或者public key certificate,是密码学中的概念,在TLS中就是指CA证书【由证书的签发机构(Certificate Authority,简称为 CA)颁布的证书】,好比是权威部门的公章,WIKI百科解释如下: In cryptography, a public key certificate, also known as a digital certificate or identity certificate, ...
1.2.5、记录协议(Record protocol) 记录协议在客户机和服务器握手成功后使用,即客户机和服务器鉴别对方和确定安全信息交换使用的算法后,进入SSL记录协议,记录协议向SSL连接提供两个服务: 保密性:使用握手协议定义的秘密密钥实现 完整性:握手协议定义了MAC,用于保证消息完整性 记录协议的过程: 1.2.6、报警协议(Alert ...
客户端与服务端通过tcp三次握手建立tcp连接后,客户端首先向服务器发出建立加密通信的请求,发送ClientHello请求,从消息体结构看,tls/ssl是基于tcp连接之上,应用层之下的协议,封装的消息体内容如下: (1) 此时握手协议(handshake protocol)的消息类型为:client hello (2) 支持的TLS协议版本,比如TLS1.0版。握手协议的版...
HTTPS: Hyper Text Protocol Secure HTTPSappears in the URL when a website is secured by an SSL/TLS certificate. Users can view the details of the certificate, including the issuing authority and the corporate name of the website owner, by clicking the lock symbol on the browser bar. ...
The SSL protocol has always been used to encrypt and secure transmitted data. Each time a new and more secure version was released, only the version number was altered to reflect the change (e.g., SSLv2.0). However, when the time came to update from SSLv3.0, instead of calling the ne...
OpenSSL is an all-around cryptography library that offers an open-source application of the TLS protocol. It allows users to perform various SSL-related tasks, including CSR (Certificate Signing Request) and private keys generation, and SSL certificate installation. You can use OpenSSL's commands ...
Encryption:Because HTTP was originally designed as a clear text protocol, it is vulnerable to eavesdropping andman in the middle attacks. By including SSL/TLS encryption, HTTPS prevents data sent over the internet from being intercepted and read by a third party. Throughpublic-key cryptographyand ...
Supporting the HTTP Strict Transport Security (HSTS) protocol is one of the easiest ways to better secure your website, API, or mobile application. HSTS is an extension to the HTTP protocol that forces clients to use secure connections for every request to your origin server. Cloudflare provides...
非对称加密(Asymmetric Cryptography) 加密和解密不是用的同一个密钥,其中一个称为公钥(public key),另一个称为私钥(private key)。公钥就是公开的,大家都知道,而私钥只有你自己知道。这两个密钥在数学上是有联系的,用公钥加密的内容只能由相应的私钥来解密,反过来,用私钥加密的内容只能由相应的公钥来解密。另外很...
DSSL is the ubiquitous security protocol used in almost 100% of secure Internet transactions. Essentially, SSL transforms a typical reliable transport protocol (such as TCP) into a secure communications channel suitable for conducting sensitive transactions.iThe SSL protocol defines the methods by ...