Code Signing Migration from SHA-1 to SHA256

Effective January 1, 2016, Windows (version 7 and higher) and Windows Server will no longer trust new code that is signed with a SHA-1 code signing certificate for Mark-of-the-Web related scenarios (e.g. files containing a digital signature) and that has been time-stamped with a value greater than January 1, 2016. This cut-off date applies to the code-signing certificate itself.

What this means:

Any new distribution of our products (i.e. Terian ICP, Terian IDC) that are code signed and time stamped from 01/Jan/2016 onwards will no longer appear as coming from a verified publisher, i.e. like this…

TerianICP_Install_UAC_Signed

SHA256 Certificate:

Fortunately GoDaddy provides both SHA-1, and SHA256 code signing certificates. So newer versions of Windows can be supported with the new SHA256 certificate ensuring our applications still appear to be from a verified published.

Dual Certificate Code Signing:

To ensure we maintain backward compatibility with older versions of windows all new distributions will be code signed with both the SHA-1, and SHA256 certificates, like this…

Terian ICP Properties Dialog displaying SHA1, and SHA256 Digital Signatures

SHA-1 Deprecation:

Once SHA-1 has been fully deprecated we will most likely transition to only signing our code with the SHA256 certificate. Hopefully by this time our requirement to ensure 100% support on older systems will be reduced.

More information regarding Windows Enforcement of authenticode Code Signing can be found here

About Anthony Dowling

Founder Sjones Limited, focusing on developing ID and Security Card Solutions. Long time Delphi Developer. @AntDowling
This entry was posted in ID Creator, Image Capture, Terian and tagged , , , , , , . Bookmark the permalink.

2 Responses to Code Signing Migration from SHA-1 to SHA256

  1. Pingback: Terian Image Capture Pro v3.00 Released | Journey from Code to Sales

  2. Pingback: Terian ID Creator v1.12 Released | Journey from Code to Sales

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