SSH提供基于验证的证书、强加密和其他特性，并且被认为安全多了。

SSH offers certificate based authentication, strong encryption, and other features, and is considered to be far more secure.

youdao

在此情况下，撤销必须基于该证书的加密指纹，而提供此功能的机制就是证书撤销列表(CRL)。

Revocation in this case must be based on the cryptographic fingerprint of the certificate, and the mechanism that provides this functionality is a certificate revocation list (CRL).

youdao

基于互联网络办公的需求，介绍了公开密钥加密算法、数字证书和数字签名技术。

Based on the need of network office, this paper introduces the algorithm of asymmetric encryption, digital certificates and digital signature.

youdao