Lync Phone Edition now supports SHA-2 certificates

In a previous post, we discussed resigning certificates with SHA-2:

Certificate re-key to change signature algorithm in Lync Server (SHA-1 to SHA-2)

Some users raised a concern about the SHA-2 supportability for Lync Phone Edition. This support (SHA-2) was included in the December 2015 update for Lync Phone Edition:

This update for Microsoft Lync Phone Edition devices adds support for the SHA-2 suite of digest hash and signing algorithms for connections from clients. The SHA-2 protocol uses digest lengths of 224, 256, 384, or 512 bits. After you apply this update, Lync Phone Edition devices can be connected to a Microsoft Lync server that contains a certificate that is issued from the same Certification Authority (CA).

SHA-2 signing and verification functionality is supported in Lync Phone Edition telephones

This update was released for the following devices:

December 2015 cumulative update for Lync Phone Edition for Polycom CX500, Polycom CX600 and Polycom CX3000 telephones

December 2015 cumulative update for Lync Phone Edition for HP 4110 and HP 4120

December 2015 cumulative update for Lync Phone Edition for Aastra 6721ip and Aastra 6725ip telephones

In order to check the previous list of releases, go to:

Lync Phone Edition Cumulative Update List

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