CRYPTO: Error encountered while executing crypto command

[Kalana Kaushanga]

Hi Community,

I am getting an error log on my CISCO ASA as below.

%ASA-4-402123: CRYPTO: The ASA hardware accelerator encountered an error (Invalid PKCS Type, Pad, or Length, code= 0x1B) while executing the command PKCS1 v1.5 RSA Decrypt with CRT (0x204).

Anyone can  have an idea on this and how to resolve this 

[Marvin Rhoads]

What version are you running? I'd suggest moving to a gold star recommended release if you aren't already running one.

There are a couple of bug in ASA 9.4 and 9.5 that can cause this behavior:

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvb19724

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvc10751