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I believe many people don't know what the difference is between ssl and ca certificates, only know that they are digital certificates, so the following small series will introduce SSL Certificates and ca certificates to you. What is ssl ca certificate?

How do you distinguish SSL CA certificates?

1. SSL, an encryption protocol used for network communications, plays a very useful role in the confidentiality of user information and the transmission of confidential file information.

2.ca, e-commerce certification authority (CA, Certificate Authority), also known as e-commerce certification center, CA is responsible for issuing and managing digital certificates authority, and as a trusted third party in e-commerce transactions, assume the responsibility for the legitimacy of the public key in the public key system. CA authority is an authority that issues certificates, authenticates certificates, and manages certificates that have been issued. It establishes policies and specific procedures to verify the identity of users, signatures, etc., so as to ensure the true identity of certificate holders and ownership of public keys.

CA also owns a certificate (containing public key) and private key. Public users on the Internet trust a CA by verifying its signature, and anyone can obtain a certificate (including a public key) from the CA to verify the certificate it issues.

SSL CA certificate certification

If the user wants to get a certificate belonging to himself, he should first apply to CA. After the CA identifies the applicant, it assigns him a public key, and the CA binds the public key to the applicant's identity information and signs it to form a certificate and issues it to the applicant.

If the user wants to know whether another certificate is true or false, he can verify the signature of which certificate with the CA's public key, and if the certificate is true, it can pass.

SSL Certificates carry out security encryption on websites, which can effectively prevent hijacking, effectively prevent malicious advertisements from being implanted on your websites, prevent tampering and monitoring from leaking user passwords, and SSL Certificates have an optimized effect on SEO rankings of search engines.

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