![]() ![]() ![]() It is no longer possible to purchase SHA-1 certificates, so Webroot has no choice but to sign only with the more modern and more secure technology standard. Q: Why is Webroot only signing with SHA-256 certificates?Ī: The previous signing standard, SHA-1, has been deprecated industry wide in favor of the more secure SHA-256 standard. However, installation to Windows XP and Server 2003 is still possible using installers that are only signed with SHA-256. Unfortunately, Windows XP and Server 2003 do not support this SHA-256 standard and will not be able to verify the signature prior to installation. SHA-256 is a more modern certificate format which provides better security and authenticity verification on the latest operating systems. Starting with Webroot version 9.0.27.64, Webroot will be digitally signed with a SHA-256 certificate only. Q: What is SHA-256 digital certificate signing?Ī: In order for customers to verify the authenticity of an installation package, software distributors digitally sign their installers and installation files. Webroot has always followed this practice. Windows XP/Server 2003 digital signature FAQ
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