News: cheapsslshop $3.50/year Comodo Positive SSL Certificate

What is ssl SSL (Secure Sockets Layer), and its successor Transport Layer Security (TLS), are a security protocol that provides security and data integrity for network communications. TLS and SSL encrypt network connections at the transport layer.

What is an SSL certificate? SSL certificate is a type of digital certificate, similar to electronic copies of driver's licenses, passports and business licenses. Because it is configured on the server, it is also called an SSL server certificate. The SSL certificate complies with the SSL protocol and is issued by a trusted digital certificate authority CA (such as GlobalSign) after verifying the server's identity. It has server identity verification and data transmission encryption functions. The SSL certificate establishes an SSL secure channel between the client browser and the Web server (Secure socket layer (SSL) security protocol is designed and developed by Netscape Communication Company. This security protocol is mainly used to provide authentication of users and servers; for The transmitted data is encrypted and hidden; ensuring that the data is not changed during transmission, that is, data integrity, has now become a global standard in this field. Since SSL technology has been built into all major browsers and WEB server programs , so you only need to install the server certificate to activate the feature). That is, it can activate the SSL protocol, realize encrypted transmission of data information between the client and the server, and prevent the leakage of data information. This ensures the security of information transmitted by both parties, and the user can verify whether the website he is visiting is authentic and reliable through the server certificate. Digital signature, also known as digital identification or signature (i.e. Digital Certificate, Digital ID), provides a method of identity verification online. It is a digital information file used to mark and prove the identity of both parties in network communications. The concept is similar to daily life. The driver's license or ID card is similar. Digital signatures are mainly used for secure online electronic transaction activities such as sending secure emails, accessing secure sites, online bidding and tendering, online signing, online ordering, secure online document transmission, online office work, online payment, online tax payment, and online shopping.

What is HTTPS

HTTPS (Hypertext Transfer Protocol Secure) Secure Hypertext Transfer Protocol It was developed by Netscape and built into its browser, and is used to compress and decompress data and return the results sent back over the network. HTTPS actually uses Netscape's Full Sockets Layer (SSL) as a sublayer of the HTTP application layer. (HTTPS uses port 443 instead of port 80 like HTTP to communicate with TCP/IP.) SSL uses a 40-bit keyword as the RC4 stream encryption algorithm, which is suitable for encrypting business information. HTTPS and SSL support the use of X.509 digital authentication, allowing users to confirm who the sender is if needed. . https is an HTTP channel aimed at security. Simply put, it is a secure version of HTTP. That is, the SSL layer is added to HTTP. The security foundation of https is SSL, so please see SSL for details on encryption. It is a URI scheme (abstract identifier system), and its syntax is similar to the http: system. For secure HTTP data transfer. The https:URL indicates that it uses HTTP, but HTTPS has a different default port than HTTP and an encryption/authentication layer (between HTTP and TCP). This system, originally developed by Netscape, provides authentication and encrypted communication methods and is widely used for security-sensitive communications on the World Wide Web, such as transaction payments. limit Its security protection relies on the correct implementation of the browser and the support of the server software and actual encryption algorithms. A common misunderstanding is that "bank users using https: online can fully and completely protect their bank card numbers from being stolen." In fact, the only part of the encrypted connection with the server that can protect the bank card number is the link between the user and the server. connection and the server itself. There is no absolute guarantee that the server itself is secure, and this has even been exploited by attackers. A common example is phishing attacks that imitate bank domain names. A few rare attacks occur when websites transmit customer data, with attackers trying to eavesdrop on the data in transit. Commercial websites are expected to quickly introduce new special handlers to financial gateways as soon as possible, retaining only the transaction number. However, they often store bank card numbers in the same database. Those databases and servers may in rare cases be attacked and compromised by unauthorized users.

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