Unverified50% confidenceFactExact time
PGP（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
1
Sources
50%
Confidence
Long-term
Relevance
8/29/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedPhil 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.78% similarUnverifiedPGP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76% 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.70% similarUnverifiedThe EFAIL vulnerability discovered by security researchers in 2018 exposed design flaws in PGP when interacting with HTML email.64% similarUnverifiedSSH协议由芬兰研究员塔图·于勒宁于1995年设计，核心安全机制包括基于非对称加密的身份认证、对称加密的会话数据加密以及完整性验证58% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/817253API
curl https://kongchang.com/api/v1/knowledge/claims/817253MCP
get_claim(id=817253)