demo.cms.pkcs7cms
Class PKCS7CMSEncryptedDataDemo

java.lang.Object
  demo.cms.pkcs7cms.PKCS7CMSEncryptedDataDemo

public class PKCS7CMSEncryptedDataDemo
extends java.lang.Object

Compares the usage of IAIK CMS with the IAIK PKCS#7 EncryptedData(Stream) implementation.

Constructor Summary

PKCS7CMSEncryptedDataDemo()
Default constructor.

Method Summary

iaik.asn1.ASN1Object	createEncryptedData(byte[] message, iaik.asn1.structures.AlgorithmID pbeAlgorithm, char[] password) Creates a CMS EncryptedData message.
byte[]	createEncryptedDataStream(byte[] message, iaik.asn1.structures.AlgorithmID pbeAlgorithm, char[] password) Creates a CMS EncryptedDataStream message.
iaik.asn1.ASN1Object	createPKCS7EncryptedData(byte[] message, iaik.asn1.structures.AlgorithmID pbeAlgorithm, char[] password) Creates a PKCS#7 EncryptedData message.
byte[]	createPKCS7EncryptedDataStream(byte[] message, iaik.asn1.structures.AlgorithmID pbeAlgorithm, char[] password) Creates a PKCS#7 EncryptedDataStream message.
byte[]	getEncryptedData(iaik.asn1.ASN1Object asn1Object, char[] password) Decrypts the PBE-encrypted content of the given CMS EncryptedData object using the specified password and returns the decrypted (= original) message.
byte[]	getEncryptedDataStream(byte[] encoding, char[] password) Decrypts the PBE-encrypted content of the given CMS EncryptedData object using the specified password and returns the decrypted (= original) message.
byte[]	getPKCS7EncryptedData(iaik.asn1.ASN1Object asn1Object, char[] password) Decrypts the PBE-encrypted content of the given PKCS#7 EncryptedData object using the specified password and returns the decrypted (= original) message.
byte[]	getPKCS7EncryptedDataStream(byte[] encoding, char[] password) Decrypts the PBE-encrypted content of the given PKCS#7 EncryptedData object using the specified password and returns the decrypted (= original) message.
static void	main(java.lang.String[] argv) Tests the IAIK CMS against the IAIK PKCS#7 EncryptedData(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

PKCS7CMSEncryptedDataDemo

public PKCS7CMSEncryptedDataDemo()

Default constructor.

Method Detail

createEncryptedDataStream

public byte[] createEncryptedDataStream(byte[] message,
                                        iaik.asn1.structures.AlgorithmID pbeAlgorithm,
                                        char[] password)
                                 throws iaik.cms.CMSException,
                                        java.io.IOException

Creates a CMS EncryptedDataStream message.

The supplied content is PBE-encrypted using the specified password.

Parameters:

message - the message to be encrypted, as byte representation

pbeAlgorithm - the PBE algorithm to be used

password - the password

Returns:

the DER encoding of the EncryptedData object just created

Throws:

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

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

getEncryptedDataStream

public byte[] getEncryptedDataStream(byte[] encoding,
                                     char[] password)
                              throws iaik.cms.CMSException,
                                     java.io.IOException

Decrypts the PBE-encrypted content of the given CMS EncryptedData object using the specified password and returns the decrypted (= original) message.

Parameters:

encoding - the EncryptedData object as DER encoded byte array

password - the password to decrypt the message

Returns:

the recovered message, as byte array

Throws:

iaik.cms.CMSException - if the message cannot be recovered

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

createEncryptedData

public iaik.asn1.ASN1Object createEncryptedData(byte[] message,
                                                iaik.asn1.structures.AlgorithmID pbeAlgorithm,
                                                char[] password)
                                         throws iaik.cms.CMSException,
                                                java.io.IOException

Creates a CMS EncryptedData message.

The supplied content is PBE-encrypted using the specified password.

Parameters:

message - the message to be encrypted, as byte representation

pbeAlgorithm - the PBE algorithm to be used

password - the password

Returns:

the DER encoding of the EncryptedData object just created

Throws:

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

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

getEncryptedData

public byte[] getEncryptedData(iaik.asn1.ASN1Object asn1Object,
                               char[] password)
                        throws iaik.cms.CMSException,
                               java.io.IOException

Decrypts the PBE-encrypted content of the given CMS EncryptedData object using the specified password and returns the decrypted (= original) message.

Parameters:

asn1Object - the EncryptedData object as ASN1Object

password - the password to decrypt the message

Returns:

the recovered message, as byte array

Throws:

iaik.cms.CMSException - if the message cannot be recovered

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

createPKCS7EncryptedDataStream

public byte[] createPKCS7EncryptedDataStream(byte[] message,
                                             iaik.asn1.structures.AlgorithmID pbeAlgorithm,
                                             char[] password)
                                      throws iaik.pkcs.PKCSException,
                                             java.io.IOException

Creates a PKCS#7 EncryptedDataStream message.

The supplied content is PBE-encrypted using the specified password.

Parameters:

message - the message to be encrypted, as byte representation

pbeAlgorithm - the PBE algorithm to be used

password - the password

Returns:

the DER encoding of the EncryptedData object just created

Throws:

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

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

getPKCS7EncryptedDataStream

public byte[] getPKCS7EncryptedDataStream(byte[] encoding,
                                          char[] password)
                                   throws iaik.pkcs.PKCSException,
                                          java.io.IOException

Decrypts the PBE-encrypted content of the given PKCS#7 EncryptedData object using the specified password and returns the decrypted (= original) message.

Parameters:

encoding - the EncryptedData object as DER encoded byte array

password - the password to decrypt the message

Returns:

the recovered message, as byte array

Throws:

iaik.pkcs.PKCSException - if the message cannot be recovered

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

createPKCS7EncryptedData

public iaik.asn1.ASN1Object createPKCS7EncryptedData(byte[] message,
                                                     iaik.asn1.structures.AlgorithmID pbeAlgorithm,
                                                     char[] password)
                                              throws iaik.pkcs.PKCSException,
                                                     java.io.IOException

Creates a PKCS#7 EncryptedData message.

The supplied content is PBE-encrypted using the specified password.

Parameters:

message - the message to be encrypted, as byte representation

pbeAlgorithm - the PBE algorithm to be used

password - the password

Returns:

the DER encoding of the EncryptedData object just created

Throws:

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

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

getPKCS7EncryptedData

public byte[] getPKCS7EncryptedData(iaik.asn1.ASN1Object asn1Object,
                                    char[] password)
                             throws iaik.pkcs.PKCSException,
                                    java.io.IOException

Decrypts the PBE-encrypted content of the given PKCS#7 EncryptedData object using the specified password and returns the decrypted (= original) message.

Parameters:

asn1Object - the EncryptedData object as ASN1Object

password - the password to decrypt the message

Returns:

the recovered message, as byte array

Throws:

iaik.pkcs.PKCSException - if the message cannot be recovered

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 against the IAIK PKCS#7 EncryptedData(Stream) implementation.

Throws:

java.lang.Exception