S/MIME
An end-to-end email encryption standard based on a CA-issued certificate system. It relies on public key infrastructure (PKI) to implement email encryption and signing, and is commonly found in enterprise environments.
Timeline (last 90 days)
S/MIME is based on a CA-issued certificate system and is more common in enterprise environments; PGP is based on a web of trust and is popular in open-source communities and among individual users.
PGP achieves key revocation through revocation certificates, which must be actively published by the private key holder (or a pre-designated revoker); S/MIME relies on the CA to publish revocation status via CRL or OCSP.
In enterprise environments, S/MIME is usually integrated with directory services, with the IT department centrally issuing and revoking certificates, making the user experience relatively smooth.
S/MIME是基于X.509证书体系的邮件加密标准，依赖中心化的证书颁发机构（CA）
All Facts (4)
S/MIME is based on a CA-issued certificate system and is more common in enterprise environments; PGP is based on a web of trust and is popular in open-source communities and among individual users.
50%UnverifiedPGP achieves key revocation through revocation certificates, which must be actively published by the private key holder (or a pre-designated revoker); S/MIME relies on the CA to publish revocation status via CRL or OCSP.
50%UnverifiedIn enterprise environments, S/MIME is usually integrated with directory services, with the IT department centrally issuing and revoking certificates, making the user experience relatively smooth.
50%UnverifiedS/MIME是基于X.509证书体系的邮件加密标准，依赖中心化的证书颁发机构（CA）
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