I am having an issue with SSL decryption on my Palo Alto firewall in front of F5. It works with Internet Explorer, but not Firefox or Chrome. According to Palo Alto TAC, the issue is certain signature algorithms - see https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000PMR7CAO
Is there a way on F5 to disable rsa_pss* signature algorithms?
Yes this is doable from what I've learnt from articles. For this your Bigip needs to be on 14.x or above.
Beginning in 14.x you have the option to use Cipher Rule, where you can specify the list of signature algorithm for negotiation's.
Other than that, I dont see a method to achieve this.