Certificate Response
data class CertificateResponse(val issuer: String, val notAfterTime: String, val notBeforeTime: String, val parsed: Boolean, val rawDer: String, val serialNumber: String, val sha256Fingerprint: String, val subject: String, val subjectAlternativeDnsNames: List<String>)
A Certificate represents an X.509 certificate used to authenticate HTTPS connections to EKM replicas.