Microsoft has announced its plans to discontinue support for RSA keys shorter than 2048 bits for Transport Layer Security authentication. This move is aimed at enabling future versions of Windows to block outdated and potentially harmful websites and applications.
The modifications do not impact TLS certificates issued by enterprise or test certificate authorities (CAs), though it is advisable to update those as well.
In 2023, Microsoft ceased supporting TLS 1.0 and TLS 1.1 protocols for actual Windows versions. Furthermore, starting with the Windows 11 Insider Preview builds in September 2023, TLS versions 1.0 and 1.1 are disabled by default.
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