GitHub 明年關閉 SSH 上 SHA1 相關的 Kx (Key Exchange) 演算法

GitHub 定下落日條款了:「Weak cryptographic standards deprecation update」。

這次目標是 diffie-hellman-group1-sha1diffie-hellman-group14-sha1,同時啟用了 diffie-hellman-group-exchange-sha256

Since the announcement, we have been focusing on the impact of disabling the diffie-hellman-group1-sha1 and diffie-hellman-group14-sha1 key exchanges for SSH. As of last week, we have enabled diffie-hellman-group-exchange-sha256. This key exchange method is widely supported and will allow most legacy clients to seamlessly transition away from diffie-hellman-group1-sha1 and diffie-hellman-group14-sha1.

明年二月拔掉 diffie-hellman-group1-sha1diffie-hellman-group14-sha1

This is a very small percentage of traffic, but we would like to see if we can reduce the incompatible traffic percentage even further before disabling support for the older key exchange algorithms on February 1, 2018.

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