EMA C++ Developers Guide : 4 Consumer Classes : 4.3 OmmConsumerConfig Class : 4.3.3 Encrypted Connections : 4.3.3.3 Certificate Authority
 
4.3.3.3 Certificate Authority
If you use an OpenSSL Certificate Authority store, you can specify the authority store’s location using openSSLCAStore. For details on this parameter and the Enterprise Message API’s default behavior, refer to the parameter’s description in the Enterprise Message API C++ Configuration Guide.