org.spongycastle.cms

Class CMSAuthenticatedDataGenerator

java.lang.Object

org.spongycastle.cms.CMSEnvelopedGenerator

org.spongycastle.cms.CMSAuthenticatedGenerator

org.spongycastle.cms.CMSAuthenticatedDataGenerator

public class CMSAuthenticatedDataGenerator
extends CMSAuthenticatedGenerator

General class for generating a CMS authenticated-data message. A simple example of usage.

      CMSAuthenticatedDataGenerator  fact = new CMSAuthenticatedDataGenerator();

      adGen.addRecipientInfoGenerator(new JceKeyTransRecipientInfoGenerator(recipientCert).setProvider("SC"));

      CMSAuthenticatedData         data = fact.generate(new CMSProcessableByteArray(data),
                              new JceCMSMacCalculatorBuilder(CMSAlgorithm.DES_EDE3_CBC).setProvider(BC).build()));
 

Field Summary

Fields inherited from class org.spongycastle.cms.CMSAuthenticatedGenerator

authGen, unauthGen

Fields inherited from class org.spongycastle.cms.CMSEnvelopedGenerator

AES128_CBC, AES128_WRAP, AES192_CBC, AES192_WRAP, AES256_CBC, AES256_WRAP, CAMELLIA128_CBC, CAMELLIA128_WRAP, CAMELLIA192_CBC, CAMELLIA192_WRAP, CAMELLIA256_CBC, CAMELLIA256_WRAP, CAST5_CBC, DES_EDE3_CBC, DES_EDE3_WRAP, ECDH_SHA1KDF, ECMQV_SHA1KDF, IDEA_CBC, originatorInfo, RC2_CBC, SEED_CBC, SEED_WRAP, unprotectedAttributeGenerator

Constructor Summary

Constructors

Constructor and Description
CMSAuthenticatedDataGenerator() base constructor

Method Summary

Modifier and Type	Method and Description
CMSAuthenticatedData	generate(CMSTypedData typedData, MacCalculator macCalculator) Generate an authenticated data object from the passed in typedData and MacCalculator.
CMSAuthenticatedData	generate(CMSTypedData typedData, MacCalculator macCalculator, DigestCalculator digestCalculator) Generate an authenticated data object from the passed in typedData and MacCalculator.

Methods inherited from class org.spongycastle.cms.CMSAuthenticatedGenerator

getBaseParameters, setAuthenticatedAttributeGenerator, setUnauthenticatedAttributeGenerator

Methods inherited from class org.spongycastle.cms.CMSEnvelopedGenerator

addRecipientInfoGenerator, setOriginatorInfo, setUnprotectedAttributeGenerator

Methods inherited from class java.lang.Object

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

Constructor Detail

CMSAuthenticatedDataGenerator

public CMSAuthenticatedDataGenerator()

base constructor

Method Detail

generate

public CMSAuthenticatedData generate(CMSTypedData typedData,
                                     MacCalculator macCalculator)
                              throws CMSException

Generate an authenticated data object from the passed in typedData and MacCalculator.

Parameters:

typedData - the data to have a MAC attached.

macCalculator - the calculator of the MAC to be attached.

Returns:

the resulting CMSAuthenticatedData object.

Throws:

CMSException - on failure in encoding data or processing recipients.

generate

public CMSAuthenticatedData generate(CMSTypedData typedData,
                                     MacCalculator macCalculator,
                                     DigestCalculator digestCalculator)
                              throws CMSException

Generate an authenticated data object from the passed in typedData and MacCalculator.

Parameters:

typedData - the data to have a MAC attached.

macCalculator - the calculator of the MAC to be attached.

digestCalculator - calculator for computing digest of the encapsulated data.

Returns:

the resulting CMSAuthenticatedData object.

Throws:

CMSException - on failure in encoding data or processing recipients.