private CertificateConstraints getCertificateConstraints(Context context, SubContext subContext) { BasicSignatureConstraints basicSignatureConstraints = getBasicSignatureConstraintsByContext(context); if (basicSignatureConstraints != null) { if (SubContext.SIGNING_CERT.equals(subContext)) { return basicSignatureConstraints.getSigningCertificate(); } else if (SubContext.CA_CERTIFICATE.equals(subContext)) { return basicSignatureConstraints.getCACertificate(); } } return null; }