public boolean match(Certificate cert) { if (!(cert instanceof X509Certificate)) { return false; } X509Certificate x509Cert = (X509Certificate) cert; try { if (holder.getBaseCertificateID() != null) { return holder .getBaseCertificateID() .getSerial() .getValue() .equals(x509Cert.getSerialNumber()) && matchesDN( PrincipalUtil.getIssuerX509Principal(x509Cert), holder.getBaseCertificateID().getIssuer()); } if (holder.getEntityName() != null) { if (matchesDN(PrincipalUtil.getSubjectX509Principal(x509Cert), holder.getEntityName())) { return true; } } if (holder.getObjectDigestInfo() != null) { MessageDigest md = null; try { md = MessageDigest.getInstance(getDigestAlgorithm(), "DFBC"); } catch (Exception e) { return false; } switch (getDigestedObjectType()) { case ObjectDigestInfo.publicKey: // TODO: DSA Dss-parms md.update(cert.getPublicKey().getEncoded()); break; case ObjectDigestInfo.publicKeyCert: md.update(cert.getEncoded()); break; } if (!Arrays.areEqual(md.digest(), getObjectDigest())) { return false; } } } catch (CertificateEncodingException e) { return false; } return false; }