Home / bulletins Microsoft Security Advisory (2880823): Deprecation of SHA-1 Hashing Algorithm for Microsoft Root Certificate Program - Version: 1.0
Posted on 12 November 2013
Revision Note: V1.0 (November 12, 2013): Advisory published.
Summary: Microsoft is announcing a policy change to the Microsoft Root Certificate Program. The new policy will no longer allow root certificate authorities to issue X.509 certificates using the SHA-1 hashing algorithm for the purposes of SSL and code signing after January 1, 2016. Using the SHA-1 hashing algorithm in digital certificates could allow an attacker to spoof content, perform phishing attacks, or perform man-in-the-middle attacks.
