demo.cms.pkcs7cms
Class PKCS7CMSSignedDataDemo

java.lang.Object
  demo.cms.pkcs7cms.PKCS7CMSSignedDataDemo

public class PKCS7CMSSignedDataDemo
extends java.lang.Object

This class demonstrates the CMS SignedData implementation and checks it against the IAIK PKCS#7 library.

Constructor Summary

PKCS7CMSSignedDataDemo()
Setup the demo certificate chains.

Method Summary

iaik.asn1.ASN1Object	createPKCS7SignedData(byte[] message, int mode) Creates a PKCS#7 SignedData object.
byte[]	createPKCS7SignedDataStream(byte[] message, int mode) Creates a PKCS#7 SignedData object.
iaik.asn1.ASN1Object	createSignedData(byte[] message, int mode) Creates a CMS SignedData object.
byte[]	createSignedDataStream(byte[] message, int mode) Creates a CMS SignedData object.
byte[]	getPKCS7SignedData(iaik.asn1.ASN1Object obj, byte[] message) Parses a PKCS#7 SignedData object and verifies the signatures for all participated signers.
byte[]	getPKCS7SignedDataStream(byte[] signedData, byte[] message) Parses a PKCS#7 SignedData object and verifies the signatures for all participated signers.
byte[]	getSignedData(iaik.asn1.ASN1Object obj, byte[] message) Parses a CMS or PKCS#7 SignedData object and verifies the signatures for all participated signers.
byte[]	getSignedDataStream(byte[] signedData, byte[] message) Parses a CMS or PKCS#7 SignedData object and verifies the signatures for all participated signers.
static void	main(java.lang.String[] argv) Main method.
void	start() Tests the CMS SignedData implementation and checks it against the IAIK PKCS#7 library.

Methods inherited from class java.lang.Object

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

Constructor Detail

PKCS7CMSSignedDataDemo

public PKCS7CMSSignedDataDemo()
                       throws java.io.IOException

Setup the demo certificate chains. Keys and certificate are retrieved from the demo KeyStore.

Throws:

java.io.IOException - if an file read error occurs

Method Detail

createSignedDataStream

public byte[] createSignedDataStream(byte[] message,
                                     int mode)
                              throws iaik.cms.CMSException,
                                     java.io.IOException

Creates a CMS SignedData object.

Parameters:

message - the message to be signed, as byte representation

mode - the transmission mode, either IMPLICIT or EXPLICIT

Returns:

the DER encoding of the SignedData object just created

Throws:

iaik.cms.CMSException - if the SignedData object cannot be created

java.io.IOException - if an I/O error occurs

createPKCS7SignedDataStream

public byte[] createPKCS7SignedDataStream(byte[] message,
                                          int mode)
                                   throws iaik.pkcs.PKCSException,
                                          java.io.IOException

Creates a PKCS#7 SignedData object.

Parameters:

message - the message to be signed, as byte representation

mode - the transmission mode, either IMPLICIT or EXPLICIT

Returns:

the DER encoding of the SignedData object just created

Throws:

iaik.pkcs.PKCSException - if the SignedData object cannot be created

java.io.IOException - if an I/O error occurs

getSignedDataStream

public byte[] getSignedDataStream(byte[] signedData,
                                  byte[] message)
                           throws iaik.cms.CMSException,
                                  java.io.IOException

Parses a CMS or PKCS#7 SignedData object and verifies the signatures for all participated signers.

Parameters:

signedData - SignedData object as DER encoded byte array

message - the the message which was transmitted out-of-band (explicit signed)

Returns:

the inherent message as byte array

Throws:

iaik.cms.CMSException - if any signature does not verify

java.io.IOException - if an I/O error occurs

getPKCS7SignedDataStream

public byte[] getPKCS7SignedDataStream(byte[] signedData,
                                       byte[] message)
                                throws iaik.pkcs.PKCSException,
                                       java.io.IOException

Parses a PKCS#7 SignedData object and verifies the signatures for all participated signers.

Parameters:

signedData - SignedData object as DER encoded byte array

message - the the message which was transmitted out-of-band (explicit signed)

Returns:

the inherent message as byte array

Throws:

iaik.pkcs.PKCSException - if any signature does not verify

java.io.IOException - if an I/O error occurs

createSignedData

public iaik.asn1.ASN1Object createSignedData(byte[] message,
                                             int mode)
                                      throws iaik.cms.CMSException,
                                             java.io.IOException

Creates a CMS SignedData object.

Parameters:

message - the message to be signed, as byte representation

mode - the mode, either SignedData.IMPLICIT or SignedData.EXPLICIT

Returns:

the SignedData object as ASN.1 object

Throws:

iaik.cms.CMSException - if the SignedData object cannot be created

java.io.IOException - if an I/O error occurs

createPKCS7SignedData

public iaik.asn1.ASN1Object createPKCS7SignedData(byte[] message,
                                                  int mode)
                                           throws iaik.pkcs.PKCSException,
                                                  java.io.IOException

Creates a PKCS#7 SignedData object.

Parameters:

message - the message to be signed, as byte representation

mode - the mode, either SignedData.IMPLICIT or SignedData.EXPLICIT

Returns:

the SignedData object as ASN.1 object

Throws:

iaik.pkcs.PKCSException - if the SignedData object cannot be created

java.io.IOException - if an I/O error occurs

getSignedData

public byte[] getSignedData(iaik.asn1.ASN1Object obj,
                            byte[] message)
                     throws iaik.cms.CMSException,
                            java.io.IOException

Parses a CMS or PKCS#7 SignedData object and verifies the signatures for all participated signers.

Parameters:

obj - SignedData object in ASN.1 representation

message - the the message which was transmitted out-of-band (explicit signed)

Returns:

the inherent message as byte array

Throws:

iaik.cms.CMSException - if any signature does not verify

java.io.IOException - if an I/O error occurs

getPKCS7SignedData

public byte[] getPKCS7SignedData(iaik.asn1.ASN1Object obj,
                                 byte[] message)
                          throws iaik.pkcs.PKCSException,
                                 java.io.IOException

Parses a PKCS#7 SignedData object and verifies the signatures for all participated signers.

Parameters:

obj - SignedData object in ASN.1 representation

message - the the message which was transmitted out-of-band (explicit signed)

Returns:

the inherent message as byte array

Throws:

iaik.pkcs.PKCSException - if any signature does not verify

java.io.IOException - if an I/O error occurs

start

public void start()

Tests the CMS SignedData implementation and checks it against the IAIK PKCS#7 library.

main

public static void main(java.lang.String[] argv)
                 throws java.lang.Exception

Main method.

Throws:

java.io.IOException - if an I/O error occurs when reading required keys and certificates from files

java.lang.Exception