Parsing a Certificate Reply

The following example parses a PKCS #7-formatted certificate reply stored in a file and extracts all the certificates from it:

FileInputStream fis = new FileInputStream(filename);
CertificateFactory cf = CertificateFactory.getInstance("X.509");
Collection c = cf.generateCertificates(fis);
Iterator i = c.iterator();
while (i.hasNext()) {
	Certificate cert = (Certificate)i.next();
	System.out.println(cert);
}