Google Chrome 將在 2017 的 56 版停止支援 SHA-1 SSL Certificate

在明年一月的 Google Chrome 56 將會停止支援 SHA-1 SSL Certificate:「SHA-1 Certificates in Chrome」,唯一的例外是自己建立的 CA,主要是給企業內部用的:

Starting with Chrome 54 we provide the EnableSha1ForLocalAnchors policy that allows certificates which chain to a locally installed trust anchor to be used after support has otherwise been removed from Chrome.

但安全性的標示不會是綠色的鎖頭:

Features which require a secure origin, such as geolocation, will continue to work, however pages will be displayed as “neutral, lacking security”.

使用 SHA-1 程式碼的完全移除預定在 2019 年 (大約兩年多):

Since this policy is intended only to allow additional time to complete the migration away from SHA-1, it will eventually be removed in the first Chrome release after January 1st 2019.

但如果對 SHA-1 攻擊有重大突破的話也會考慮提前:

We may also remove support before 2019 if there is a serious cryptographic break of SHA-1.

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