Prerequisites Use following keytool command to extract public certificate from the wso2is-5.1.0/repository/resources/security/wso2carbon.jks file. (pw: wso2carbon) keytool -export -alias wso2carbon -file key.crt -keystore wso2carbon.jks Important : In production environment you must not use the default wso2carbon.jks which comes with the WSO2 Identity Server Use following command to print the extracted public certificate, openssl x509 -text -inform DER -in key.crt Ex: -----BEGIN CERTIFICATE----- MIICNTCCAZ6gAwIBAgIES343gjANBgkqhkiG9w0BAQUFADBVMQswCQYDVQQGEwJV UzELMAkGA1UECAwCQ0ExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxDTALBgNVBAoM BFdTTzIxEjAQBgNVBAMMCWxvY2FsaG9zdDAeFw0xMDAyMTkwNzAyMjZaFw0zNTAy MTMwNzAyMjZaMFUxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJDQTEWMBQGA1UEBwwN TW91bnRhaW4gVmlldzENMAsGA1UECgwEV1NPMjESMBAGA1UEAwwJbG9jYWxob3N0 MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCUp/oV1vWc8/TkQSiAvTousMzO M4asB2iltr2QKozni5aVFu818MpOLZIr8LMnTzWllJvvaA5RAAdpb...