demo.cms.authenticatedData

Class HMACwithAESAuthenticatedDataDemo

java.lang.Object

demo.cms.authenticatedData.AuthenticatedDataDemo

demo.cms.authenticatedData.HMACwithAESAuthenticatedDataDemo

public class HMACwithAESAuthenticatedDataDemo
extends AuthenticatedDataDemo

Demonstrates the usage of class AuthenticatedDataStream and AuthenticatedData for recipient-specific protecting the integrity of a message using the CMS type AuthenticatedData with the HMACwithAESwrap algorithm for wrapping the HMAC key.

Attention: This demo uses Static-Static Diffie-Hellman as key management technique for providing origin authentication. The mac key is wrapped by using the HMACwithAESwrap algorithm as specified by RFC 3537.

This demo requires that you have iaik_esdh.jar (or iaik_jce_full.jar) in your classpath. You can download it from https://sic.tech/products/core-crypto-toolkits/jca-jce/.

See Also:

AuthenticatedDataStream, AuthenticatedData

Constructor Summary

Constructors

Constructor and Description
HMACwithAESAuthenticatedDataDemo() Creates an HMACwithAESAuthenticatedDataDemo 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.authenticatedData.AuthenticatedDataDemo

createAuthenticatedData, createAuthenticatedDataStream, createRecipients, getAuthenticatedData, getAuthenticatedData, getAuthenticatedData, getAuthenticatedDataStream, getAuthenticatedDataStream, getAuthenticatedDataStream, parseAuthenticatedDataWithRecipientCertOrKEKId, parseAuthenticatedDataWithRecipientIdentifier, parseAuthenticatedDataWithRecipientInfoIndex, start

Methods inherited from class java.lang.Object

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

Constructor Detail

HMACwithAESAuthenticatedDataDemo

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

Creates an HMACwithAESAuthenticatedDataDemo 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.
HMACwithAESwrap is used as key wrap algorithm.

Throws:

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

java.security.NoSuchAlgorithmException - if no implementation for the requested key wrap algorithm is available

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