The sdk document says about OCSP
See this link http://www.symbian.com/Developer/tec...2enotes%2eocsp
OCSP on self-signed certificates
SWI’s OCSP check has been changed such that it can appropriately evaluate certificate chains terminating at an untrusted root. While it continues to be the case that SWI alerts the user to unknown certificates in trusted chains during an OCSP check, this is now considered the normal state of affairs for self-signed certificates and the user should not be alerted to the fact.