我应该将SHA-1或SHA-2与Heroku SSL端点一起使用吗？

Question

我的DNS可以选择将SHA-1或SHA-2用于ssl证书。我应该选择哪一个与Heroku SSL端点兼容？有效吗？

Answer 1

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