public X509CertificateBuilder addSubjectAlternativeName(SubjectAlternativeName.Type type, String value) {
        this.subjectAlternativeNames.add(new SubjectAlternativeName(type, value));
        return this;
    }
@return generates a cryptographically secure positive serial number up to 128 bits
security-utils/src/main/java/com/yahoo/security/X509CertificateBuilder.java