For instance, WireGuard (VPN protocol) for Windows initially refused to install without SHA-2 so I ended up discovering TunSafe which was even easier to use than WireGuard official. Now if a program really insists on SHA-2 or nothing I’ll just find a portable version or an alternative.
I’m not too keen on updating my few remaining Win7 systems because the first time I installed the SHA-2 update it borked the bootloader which has never happened with any update before. Including both SHA-1 and SHA-2 signatures doesn’t hurt but whatever. “Weaknesses” in SHA-1 are greatly exaggerated as there has never been a practical exploit, and even if you could craft say, a malicious Firefox installer with the same hash as the official installer, it would be extremely difficult to get anyone to download and use it since everyone gets it from Mozilla’s site anyway, and all the common mirror sites get the binaries directly from Mozilla too. Any devices without SHA-2 support will not be able to install Windows updates on or after July 2019. Systems without the update may get Windows Update error 0x80092004 because of the missing dependency this may happen on manually updated systems.Ĭustomers who run legacy OS versions (Windows 7 SP1, Windows Server 2008 R2 SP1 and Windows Server 2008 SP2) are required to have SHA-2 code signing support installed on their devices to install updates released on or after July 2019. The last version of the update dates back to September 2019, and it should be installed on most Windows 7 devices by now, as it was released before the operating system reached end of support.
The Windows update KB4474419 introduced support for SHA-2 code signing on Windows 7 and Windows Server 2008 / 2008 R2. The update is a prerequisite for Firefox 100 as Mozilla switched to SHA-256 digest signing in that release.
Firefox users who run the open source web browser on Microsoft's Windows 7 operating system need to make sure that Windows update KB4474419 is installed on their devices.
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