demo.cms.pkcs7cms

Class PKCS7CMSDigestedDataDemo

java.lang.Object

demo.cms.pkcs7cms.PKCS7CMSDigestedDataDemo

public class PKCS7CMSDigestedDataDemo
extends java.lang.Object

Compares the usage of IAIK CMS DigestedData(Stream) with IAIK PKSC#7 DigestedData(Stream).

Constructor Summary

Constructors

Constructor and Description
PKCS7CMSDigestedDataDemo() Default constructor.

Method Summary

Modifier and Type	Method and Description
iaik.asn1.ASN1Object	createDigestedData(byte[] message, int mode) Creates a CMS DigestedData object.
byte[]	createDigestedDataStream(byte[] message, int mode) Creates a CMS DigestedData object.
iaik.asn1.ASN1Object	createPKCS7DigestedData(byte[] message, int mode) Creates a PKCS#7 DigestedData object.
byte[]	createPKCS7DigestedDataStream(byte[] message, int mode) Creates a PKCS#7 DigestedData object.
byte[]	getDigestedData(iaik.asn1.ASN1Object obj, byte[] message) Parses a CMS DigestedData object and verifies the hash value.
byte[]	getDigestedDataStream(byte[] digestedData, byte[] message) Parses a CMS DigestedData object and verifies the hash.
byte[]	getPKCS7DigestedData(iaik.asn1.ASN1Object obj, byte[] message) Parses a PKCS#7 DigestedData object and verifies the hash value.
byte[]	getPKCS7DigestedDataStream(byte[] digestedData, byte[] message) Parses a PKCS#7 DigestedData object and verifies the hash.
static void	main(java.lang.String[] argv) Tests the IAIK CMS DigestedData(Stream) implementation against the PKCS#7 DigestedData(Stream) implementation
void	start() Starts the tests.

Methods inherited from class java.lang.Object

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

Constructor Detail

PKCS7CMSDigestedDataDemo

public PKCS7CMSDigestedDataDemo()
                         throws java.io.IOException

Default constructor.

Throws:

java.io.IOException

Method Detail

createDigestedDataStream

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

Creates a CMS DigestedData object.

Parameters:

message - the message to be digested, as byte representation

mode - IMPLICIT (include message) or EXPLICIT (do not include message)

Returns:

the DER encoding of the DigestedData object just created

Throws:

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

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

getDigestedDataStream

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

Parses a CMS DigestedData object and verifies the hash.

Parameters:

digestedData - DigestedData object as DER encoded byte array

message - the the message which was transmitted out-of-band

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

createDigestedData

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

Creates a CMS DigestedData object.

Parameters:

message - the message to be digested, as byte representation

mode - IMPLICIT (include message) or EXPLICIT (do not include message)

Returns:

the DigestedData as ASN.1 object

Throws:

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

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

getDigestedData

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

Parses a CMS DigestedData object and verifies the hash value.

Parameters:

obj - DigestedData object in ASN.1 representation

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

Returns:

the message

Throws:

iaik.cms.CMSException - if some parsing exception occurs

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

createPKCS7DigestedDataStream

public byte[] createPKCS7DigestedDataStream(byte[] message,
                                            int mode)
                                     throws iaik.pkcs.PKCSException,
                                            java.io.IOException

Creates a PKCS#7 DigestedData object.

Parameters:

message - the message to be digested, as byte representation

mode - IMPLICIT (include message) or EXPLICIT (do not include message)

Returns:

the DER encoding of the DigestedData object just created

Throws:

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

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

getPKCS7DigestedDataStream

public byte[] getPKCS7DigestedDataStream(byte[] digestedData,
                                         byte[] message)
                                  throws iaik.pkcs.PKCSException,
                                         java.io.IOException

Parses a PKCS#7 DigestedData object and verifies the hash.

Parameters:

digestedData - DigestedData object as DER encoded byte array

message - the the message which was transmitted out-of-band

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

createPKCS7DigestedData

public iaik.asn1.ASN1Object createPKCS7DigestedData(byte[] message,
                                                    int mode)
                                             throws iaik.pkcs.PKCSException,
                                                    java.io.IOException

Creates a PKCS#7 DigestedData object.

Parameters:

message - the message to be digested, as byte representation

mode - IMPLICIT (include message) or EXPLICIT (do not include message)

Returns:

the DigestedData as ASN.1 object

Throws:

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

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

getPKCS7DigestedData

public byte[] getPKCS7DigestedData(iaik.asn1.ASN1Object obj,
                                   byte[] message)
                            throws iaik.pkcs.PKCSException,
                                   java.io.IOException

Parses a PKCS#7 DigestedData object and verifies the hash value.

Parameters:

obj - DigestedData object in ASN.1 representation

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

Returns:

the message

Throws:

iaik.pkcs.PKCSException - if some parsing exception occurs

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

start

public void start()

Starts the tests.

main

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

Tests the IAIK CMS DigestedData(Stream) implementation against the PKCS#7 DigestedData(Stream) implementation

Throws:

java.lang.Exception