/** return the issuer of the given CRL as an X509PrincipalObject. */
public static X509Principal getIssuerX509Principal(X509CRL crl) throws CRLException {
try {
TBSCertList tbsCertList =
TBSCertList.getInstance(ASN1Object.fromByteArray(crl.getTBSCertList()));
return new X509Principal(tbsCertList.getIssuer());
} catch (IOException e) {
throw new CRLException(e.toString());
}
}
/**
* Return an interned X509CRLImpl for the given certificate. For more information, see
* intern(X509Certificate).
*/
public static synchronized X509CRLImpl intern(X509CRL c) throws CRLException {
if (c == null) {
return null;
}
boolean isImpl = c instanceof X509CRLImpl;
byte[] encoding;
if (isImpl) {
encoding = ((X509CRLImpl) c).getEncodedInternal();
} else {
encoding = c.getEncoded();
}
X509CRLImpl newC = getFromCache(crlCache, encoding);
if (newC != null) {
return newC;
}
if (isImpl) {
newC = (X509CRLImpl) c;
} else {
newC = new X509CRLImpl(encoding);
encoding = newC.getEncodedInternal();
}
addToCache(crlCache, encoding, newC);
return newC;
}