Meaning: The SSL protocol in the network function of the Internet Explorer browser is not turned on.

Solution:

1. First open the Internet explorer browser on your computer and click the gear button in the upper left corner of the browser.

2. Click the "Internet Options" button in the settings options menu that opens.

3. In the opened window, select: Advanced in the upper navigation bar.

4. Then find the "Use SSL3.0" option in the window and check the previous check box.

Extended information

The secure channel provided by the SSL protocol has the following three characteristics:

Confidentiality: The SSL protocol uses keys to encrypt communication data.

Reliability: Both the server and the client are authenticated, and client authentication is optional.

Integrity: The SSL protocol will check the integrity of the transmitted data.

It can be seen from the services and workflow provided by the SSL protocol that the basis for the operation of the SSL protocol is the merchant's commitment to keeping consumer information confidential, which is beneficial to the merchant and not conducive to consumers. In the initial stage of e-commerce, since most of the companies operating e-commerce are large companies with high reputations, this problem has not yet been fully exposed.

With the development of e-commerce, various small and medium-sized companies have also participated, so the problem of single authentication in the electronic payment process has become more and more prominent. Although the identity authentication of both the browser and the web server can be achieved through digital signatures and digital certificates in SSL3.0, there are still some problems in the SSL protocol.

For example, it can only provide two-way authentication between the client and the server in the transaction. In electronic transactions involving multiple parties, the SSL protocol cannot coordinate the secure transmission and trust relationship between the parties. In this case, the two major credit card companies, Visa and MasterCard, developed the SET protocol to provide a global standard for online credit card payment.

The SSL architecture contains two protocol sub-layers, the bottom layer is the SSL Record Protocol Layer; the upper layer is the SSL HandShake Protocol Layer. The SSL protocol stack is shown in the figure, and the shaded part is the SSL protocol.

The role of the SSL record protocol layer is to provide basic security services for high-level protocols. The SSL record protocol is specially designed for the HTTP protocol so that the hypertext transfer protocol HTTP can run on SSL. Records and encapsulates various high-level protocols, and specifically implements security-related operations such as compression and decompression, encryption and decryption, calculation and verification of MAC.

The SSL handshake protocol layer includes SSL HandShake Protocol, SSL Change Cipher Spec Protocol, Application Data Protocol and SSL Alert Protocol ).

These protocols in the handshake layer are used for the exchange of SSL management information, allowing mutual authentication between application protocols to transmit data, negotiating encryption algorithms and generating keys, etc. The function of the SSL handshake protocol is to coordinate the status of the client and server so that both parties can achieve status synchronization.

Reference: Baidu Encyclopedia-SSL