Download - Svetlin Nakov

* consist of. The certification chain should be PkiPath-encoded (ASN.1 DER
* formatted), stored as Base64-string. The extracted chain is stored in the
* member variables mCertPath as a CertPath object and in mCertChain as array
* of X.509 certificates. Also the certificate used for signing the received
* file is extracted in the member variable mCertificate.
* @throws Exception if the received certification chain can not be decoded
* (i.e. its encoding or internal format is invalid).
*/
private void processReceivedCertificationChain()
throws Exception {
String certChainBase64Encoded = mActionForm.getCertChain();
try {
mCertPath = DigitalSignatureUtils.loadCertPathFromBase64String(
certChainBase64Encoded);
List certsInChain = mCertPath.getCertificates();
mCertChain = (X509Certificate[])
certsInChain.toArray(new X509Certificate[0]);
mCertificate = mCertChain[0];
}
catch (Exception e) {
throw new Exception("Invalid certification chain received.", e);
}
}
/**
* Displays given certification chain. Displays the length of the chain and the
* subject distinguished names of all certificates in the chain, starting from
* the first and finishing to the last.
*/
private void displayCertificationChain(X509Certificate[] aCertChain)
throws IOException {
mOut.println("Certification chain length: " + aCertChain.length + " ");
for (int i=0; i