Deprecated features in Windows 11 and Windows 10 for March 2024


  • Staff
FeatureDetails and mitigationDeprecation announced
TLS server authentication certificates using RSA keys with key lengths shorter than 2048 bitsSupport for certificates using RSA keys with key lengths shorter than 2048 bits will be deprecated. Internet standards and regulatory bodies disallowed the use of 1024-bit keys in 2013, recommending specifically that RSA keys should have a key length of 2048 bits or longer. For more information, see Transitioning of Cryptographic Algorithms and Key Sizes - Discussion Paper (nist.gov). This deprecation focuses on ensuring that all RSA certificates used for TLS server authentication must have key lengths greater than or equal to 2048 bits to be considered valid by Windows.

TLS certificates issued by enterprise or test certification authorities (CA) aren't impacted with this change. However, we recommend that they be updated to RSA keys greater than or equal to 2048 bits as a security best practice. This change is necessary to preserve security of Windows customers using certificates for authentication and cryptographic purposes.
March 2024
Test BaseTest Base for Microsoft 365, an Azure cloud service for application testing, is deprecated. The service will be retired in the future and will be no longer available for use after retirement.March 2024


 Source:

 

Latest Support Threads

Back
Top Bottom