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我的 DNS 可以选择使用 SHA-1 或 SHA-2 作为 ssl 证书。我应该选择哪一个来与 Heroku SSL Endpoint 兼容?两者都行吗?

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Either should be fine. SHA-2 will break IE6, and all versions of IE on Windows 
XP prior to SP 3. If you're fine with that, go for it.

-Tom Maher
Heroku Security Team
于 2013-05-10T15:02:33.987 回答