ESIS Framework embeds a Java KeyStore that can be managed to add credentials and root certificates.
To initialise it properly a first certificate must be loaded, a simple way to achieve this is to download the Verisign Root Certificates, and then import at least one :
$ scripts/cmd https importx509 VeriSignClass3PublicPrimaryCertificationAuthority-G5 verisign-cl3-g5 $ scripts/cmd https importx509 VeriSignClass3SecureServerCA-G3 VeriSignClass3SecureServerCA-G3