DANE(基于DNS的命名实体认证)
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DANE是一种安全协议(RFC 6698),使用[[dnssec|DNSSEC]]签名的TLSA DNS记录将加密证书与域名绑定,为传统证书颁发机构(CA)信任模型提供替代或补充方案。通过DANE,域名管理员发布TLSA记录,指定其域名授权使用哪个[[ssl-tls|TLS证书]]或CA。支持DANE的邮件服务器和客户端可以验证服务器证书与TLSA记录是否匹配,大幅降低由CA证书错误颁发引发的攻击风险。由于没有DNSSEC签名的TLSA记录可以被伪造,DANE要求从端到端部署DNSSEC。
示例
An email server publishes a TLSA record for _25._tcp.mail.example.com specifying its exact certificate fingerprint, so other mail servers can verify the TLS connection without relying solely on CAs.