The security mechanism provided by SSL can be used in the secure communication security technology of distributed databases. The encryption mechanism of the SSL certificate is the key to ensuring the security of data during transmission.

It uses the following technologies for encryption and decryption:

Asymmetric encryption:

SSL certificates use public and private keys based on asymmetric encryption algorithm. The server and other communicating parties have their own public and private keys. The public key is used to encrypt data, while the private key is used to decrypt data. This approach ensures that only the person holding the private key can decrypt the data, thus protecting the confidentiality of the data.

Digital signature:

Digital signature is another key component of the SSL certificate encryption mechanism. It ensures that communicating parties are able to verify the messages exchanged to determine their identity and integrity. Digital signatures are achieved by encrypting a message using a private key, a process called "signing"; it is then decrypted using a public key to verify the message identity and integrity.

Handshake protocol:

SSL certificates also use a handshake protocol to ensure secure data transmission. A handshake protocol is a series of communication steps between a client and a server to determine each other's identities and negotiate the algorithms and keys used to encrypt communications. The handshake protocol ensures that the SSL certificate communicates using the same encryption protocol and negotiates a session key for encrypted communication.

Symmetric encryption:

Once the handshake protocol is complete and the session key has been negotiated, the SSL certificate uses a symmetric encryption algorithm to protect the data. Symmetric encryption uses the same key for both encryption and decryption, which is faster than asymmetric encryption.

Thus useful for transferring large amounts of data. An SSL certificate only requires a session key to be exchanged between the client and server once, and that key is then used to encrypt and decrypt all data.

Special Notes

To sum up, the encryption mechanism of SSL certificate uses asymmetric encryption, digital signature, handshake protocol and symmetric encryption to ensure the secure transmission of data. These technologies work together to provide secure data transmission and communication guarantees, thereby protecting users' personal data and sensitive information from threats such as hacker attacks and data leaks.