iaik.pkcs
Class NetscapeCertList

java.lang.Object
  |
  +--iaik.pkcs.NetscapeCertList

public class NetscapeCertList

extends java.lang.Object

This class implements the Netscape Certificate Sequence format.

Netscape uses its own format for disseminating certificate lists, based on a PKCS#7 ContentInfo. The contentType object identifer is netscape-cert-sequence (2.16.840.1.113730.2.5) and the content simply is a sequence of certificates:

 CertificateSequence ::= SEQUENCE OF Certificate
 

For creating a certificate list to be sent just use the empty default constructor and subsequently supply the certificates as array of X509Certificate instances. Finally write the Netscape certificate list DER encoded to a stream, call method writeTo, e.g.:

  X509Certificate[] certs = ...;
  NetscapeCertList netscapeCertList = new NetscapeCertList();
  netscapeCertList.setCertificateList(certs);
  OutputStream os = ...;
  netscapeCertList.writeTo(os);
  

  or:
  

  NetscapeCertList pkcs7 = new NetscapeCertList(new FileInputStream("certs.p7c"));
  X509Certificate[] certs = pkcs7.getCertificateList();
 

For parsing a DER encoded Netscape Cert List use the NetscapeCertList(InputStream) constructor:

 // the DER encoded Netscape cert list supplied from a stream:
 InputStream is = ...;
 NetscapeCertList netscapeCertList = new NetscapeCertList(is);
 X509Certificate[] certs = netscapeCertList.getCertificateList();
 

See Also:

X509Certificate

Constructor Summary

NetscapeCertList()
Default constructor.

NetscapeCertList(java.io.InputStream is)
Creates a NetscapeCertList from an input stream.

Method Summary

X509Certificate[]	getCertificateList() Returns the certificates included in this NetscapeCertList object.
void	setCertificateList(X509Certificate[] certificateList) Set the certificates for this NetscapeCertList object.
byte[]	toByteArray() Returns this NetscapeCertList object as DER encoded byte array.
java.lang.String	toString() Returns a string giving some information about the contents of this NetscapeCertList object.
void	writeTo(java.io.OutputStream os) Writes this Netscape certificate chain DER encoded to the given output stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NetscapeCertList

public NetscapeCertList()

Default constructor. Creates an empty NetscapeCertList object.

Use setCertificateList for supplying a list of X509Certificates, e.g.:

 NetscapeCertList netscapeCertList = new NetscapeCertList();
 netscapeCertList.setCertificateList(certs);
 

NetscapeCertList

public NetscapeCertList(java.io.InputStream is)
                 throws java.io.IOException,
                        PKCSParsingException

Creates a NetscapeCertList from an input stream.

You may use this constructor for "reading in" a certificate list that has been written to a stream using the writeTo method, e.g.:

 NetscapeCertList netscapeCertList = new NetscapeCertList(...);
 X509Certificate[] certs = netscapeCertList.getCertificateList();
 

Parameters:

is - the input stream from where the object shall be read

Throws:

java.io.IOException - if the object could not be read

PKCSParsingException - if the object could not be parsed

Method Detail

getCertificateList

public X509Certificate[] getCertificateList()

Returns the certificates included in this NetscapeCertList object.

Returns:

the certificates included in this NetscapeCertList object, as array of X509Certificates

setCertificateList

public void setCertificateList(X509Certificate[] certificateList)

Set the certificates for this NetscapeCertList object.

Parameters:

certificateList - the chain of certificates as array

writeTo

public void writeTo(java.io.OutputStream os)
             throws java.io.IOException

Writes this Netscape certificate chain DER encoded to the given output stream.

Parameters:

os - the output stream to which the certificate chain shall be written

Throws:

java.io.IOException - if an error occurs during writing out the stream

toByteArray

public byte[] toByteArray()
                   throws PKCSException

Returns this NetscapeCertList object as DER encoded byte array.

Returns:

this NetscapeCertList object as DER encoded byte array

Throws:

PKCSException - if an encoding error occurs

toString

public java.lang.String toString()

Returns a string giving some information about the contents of this NetscapeCertList object.

Overrides:

toString in class java.lang.Object

Returns:

the string representation