Updating your Collaboration Hub certificates to SHA-256 with RSA encryption

This article is only relevant if you use Collaboration Hub with certificate-based authentication.

Until December 15, 2016, Collaboration Hub users of Signavio's software-as-a-service system could authenticate using an SHA-1 encrypted client certificate. As SHA-1 is a deprecated encryption algorithm, on January 1, 2017, Microsoft Windows and major browsers - most importantly Microsoft Internet Explorer, Mozilla Firefox and Google Chrome - stopped accepting SHA-1 certificates.

Thus, Signavio changed the required authentication certificates to SHA-256 with RSA-encrypted certificates December 15, 2016 .