public CVCertificate(byte[] in) throws IllegalArgumentException, IOException {
ASN1StreamParser asn1Parser = new ASN1StreamParser(in);
DERApplicationSpecific cvcert = (DERApplicationSpecific) asn1Parser.readObject();
if (cvcert.getApplicationTag() != 0x21)
throw new IllegalArgumentException("Can't find a CV Certificate");
ASN1Sequence derCert =
(ASN1Sequence) cvcert.getObject(BERTags.SEQUENCE); // Das CV Cerificate ist eine Sequence
DERApplicationSpecific body =
(DERApplicationSpecific)
derCert.getObjectAt(0); // Das erste Objekt des Certificates ist der Cert-Body
if (body.getApplicationTag() != 0x4E)
throw new IllegalArgumentException("Can't find a Body in the CV Certificate");
certBody = new CVCertBody(body);
DERApplicationSpecific signature =
(DERApplicationSpecific)
derCert.getObjectAt(1); // Das zweite Objekt des Certificates ist die Signatur
if (signature.getApplicationTag() != 0x37)
throw new IllegalArgumentException("Can't find a Signature in the CV Certificate");
certSignature = new CVCertSignature(signature.getContents());
}
