CRL Problem
hey,
i'm using the following functions: the 1st creates the crl the second revokes certificates
1.
public X509CRL createCRL(String caDN, PrivateKey caPrivKey)throws InvalidKeyException, SecurityException, SignatureException{
X509V2CRLGenerator crlGen =new X509V2CRLGenerator();
crlGen.setIssuerDN(new X509Principal(caDN));
crlGen.setThisUpdate(new Date() );
crlGen.setSignatureAlgorithm("sha1withrsa");
X509CRL crl = crlGen.generateX509CRL(caPrivKey);
return crl;
}
2.
public X509CRL revokeCertificate (X509CRL crl, String caDN, PrivateKey caPrivKey, BigInteger certSerial)throws InvalidKeyException, SecurityException, SignatureException{
// Retrieve the current list of revoked certs
Iterator revokedCerts = crl.getRevokedCertificates().iterator();
// Bouncy Castle class
X509V2CRLGenerator gen =new X509V2CRLGenerator();
gen.setIssuerDN(new X509Principal(caDN));
while(revokedCerts.hasNext() ){
BigInteger revokedSerial = ( (X509Certificate)
revokedCerts.next() ).getSerialNumber();
gen.addCRLEntry(revokedSerial,
crl.getRevokedCertificate(revokedSerial).getRevocationDate(), 0);
}
gen.addCRLEntry(certSerial,new Date(), 0);
// Replace current revocation list with the newly generated
crl = gen.generateX509CRL(caPrivKey);
return crl;
}
the 1. one works fine but in the second function i get a nullpointer exception at the second line
Iterator revokedCerts = crl.getRevokedCertificates().iterator();
when i remove that line and the whole while loop i get a nullpointer exception at the second last line
crl = gen.generateX509CRL(caPrivKey);
does anyone have an idea?
many thanks
toto
