demo.cms.envelopedData

Class ExplicitAESEnvelopedDataDemo

java.lang.Object

demo.cms.envelopedData.ExplicitEnvelopedDataDemo

demo.cms.envelopedData.ExplicitAESEnvelopedDataDemo

public class ExplicitAESEnvelopedDataDemo
extends ExplicitEnvelopedDataDemo

Demonstrates the usage of class EnvelopedDataStream and EnvelopedData in explicit mode for encrypting data using the CMS type EnvelopedData with the AES cipher algorithm. The encrypted data is not included in the EncryptedContentInfo (transferred by other means).
AES is used for both content encryption (according to RFC 3565) and content encryption key wrapping (according to RFC 3394).

This demo creates an EnvelopedData object and subsequently shows several ways that may be used for decrypting the content for some particular recipient.

Keys and certificates are retrieved from the demo KeyStore ("cms.keystore") which has to be located in your current working directory and may be created by running the SetupCMSKeyStore program.

See Also:

EnvelopedDataStream, EnvelopedData, RecipientInfo, KeyTransRecipientInfo, KeyAgreeRecipientInfo, KEKRecipientInfo

Constructor Summary

Constructors

Constructor and Description
ExplicitAESEnvelopedDataDemo() Creates an AESEnvelopedDataDemo and setups the demo certificates.

Method Summary

Modifier and Type	Method and Description
static void	main(java.lang.String[] argv) Main method.

Methods inherited from class demo.cms.envelopedData.ExplicitEnvelopedDataDemo

createEnvelopedData, createEnvelopedDataStream, createRecipients, getEnvelopedData, getEnvelopedData, getEnvelopedData, getEnvelopedDataStream, getEnvelopedDataStream, getEnvelopedDataStream, parseEnvelopedDataWithRecipientCertOrKEKId, parseEnvelopedDataWithRecipientIdentifier, parseEnvelopedDataWithRecipientInfoIndex, start

Methods inherited from class java.lang.Object

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

Constructor Detail

ExplicitAESEnvelopedDataDemo

public ExplicitAESEnvelopedDataDemo()
                             throws java.io.IOException,
                                    java.security.NoSuchAlgorithmException

Creates an AESEnvelopedDataDemo and setups the demo certificates.
Keys and certificates are retrieved from the demo KeyStore ("cms.keystore") file which has to be located in your current working directory and may be created by running SetupCMSKeyStore.
AES and AES KeyWrap are used for content encryption and content encryption key wrapping.

Throws:

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

java.security.NoSuchAlgorithmException - if the requested algorithms are not supported

Method Detail

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