Microsoft Plans to Deprecate 1024 Bit RSA Keys

Microsoft is often between a rock and a hard place. They would like to be more secure but not at the expense of offending their customers. Here is an example of that.

Microsoft has announced that RSA keys shorter than 2048 bits will soon be deprecated in Windows Transport Layer Security (TLS) to provide increased security.

Soon? What does that mean? Ten years from now? Probably not, but when?

It is true that you should not be using 1024 bit RSA encryption keys. This is included in a list of many things that are being deprecated by Microsoft sometime in the future.

Microsoft is telling you to get your act together and upgrade your server TLS certificates or sometime in the relatively near future, visitors to your website using recently updated software will no longer be able to visit you.

This does include Internet of Things devices such as printers. There are some exclusions to the ban, but upgrade anyway.

If you need help figuring out whether you are using any of the soon to be banned keys, please contact us. Credit: Bleeping Computer

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