Unverified50% confidenceFactExact time
PGP诞生于1991年，至今已有30多年历史，是最早被广泛认知的邮件加密方案
1
Sources
50%
Confidence
Long-term
Relevance
8/29/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedPGP（Pretty Good Privacy）诞生于1991年，因密钥管理繁琐、信任模型去中心化等障碍从未真正大规模普及，2018年发现的EFAIL漏洞暴露了其与HTML邮件交互的设计缺陷76% similarUnverifiedPhil Zimmermann released PGP (Pretty Good Privacy) in 1991, providing end-to-end encryption capabilities for email, which later evolved into the open-source GPG (GNU Privacy Guard) standard.72% similarUnverifiedPGP uses long-term static keys and lacks Forward Secrecy; once the private key is compromised, all historical communications encrypted with that key will be exposed.61% similarUnverifiedPAKE 协议起源于 1992 年密码学家 Bellovin 与 Merritt 提出的 EKE（Encrypted Key Exchange）方案59% similarUnverified2001年的RFC 2821将SMTP更新为ESMTP，增加了身份验证和加密传输等特性54% similar
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