Package eu.europa.esig.dss.cades

Class CMSUtils

java.lang.Object

eu.europa.esig.dss.cades.CMSUtils

public final class CMSUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static DigestAlgorithm	DEFAULT_ARCHIVE_TIMESTAMP_HASH_ALGO

Method Summary

Modifier and Type	Method	Description
static void	addSigningCertificateAttribute(org.bouncycastle.asn1.ASN1EncodableVector signedAttributes, DigestAlgorithm digestAlgorithm, CertificateToken signingToken)	Method to add signing certificate to ASN.1 DER encoded signed attributes.
static org.bouncycastle.cms.CMSSignedData	generateCMSSignedData(org.bouncycastle.cms.CMSSignedDataGenerator generator, org.bouncycastle.cms.CMSTypedData content, boolean encapsulate)	This method generate CMSSignedData using the provided #CMSSignedDataGenerator, the content and the indication if the content should be encapsulated.
static org.bouncycastle.cms.CMSSignedData	generateDetachedCMSSignedData(org.bouncycastle.cms.CMSSignedDataGenerator generator, org.bouncycastle.cms.CMSProcessableByteArray content)
static org.bouncycastle.asn1.cms.AttributeTable	getAttributesFromByteArray(byte[] encodedAttributes)	This method returns an AttributeTable parsed from ASN.1 encoded representation
static org.bouncycastle.cms.CMSTypedData	getContentToBeSign(DSSDocument toSignData)
static org.bouncycastle.asn1.DERTaggedObject	getDERSignedAttributes(org.bouncycastle.cms.SignerInformation signerInformation)
static DSSDocument	getOriginalDocument(org.bouncycastle.cms.CMSSignedData cmsSignedData, List<DSSDocument> detachedDocuments)	Returns the original document from the provided cmsSignedData
static org.bouncycastle.asn1.cms.AttributeTable	getSignedAttributes(org.bouncycastle.cms.SignerInformation signerInformation)	This method returns the existing signed attributes or a new empty attributes hashtable
static byte[]	getSignedContent(org.bouncycastle.cms.CMSTypedData cmsTypedData)	This method returns the signed content extracted from a CMSTypedData
static org.bouncycastle.asn1.cms.Attribute	getUnsignedAttribute(org.bouncycastle.cms.SignerInformation signerInformation, org.bouncycastle.asn1.ASN1ObjectIdentifier oid)	Returns an unsigned attribute by its given oid
static org.bouncycastle.asn1.cms.AttributeTable	getUnsignedAttributes(org.bouncycastle.cms.SignerInformation signerInformation)	This method returns the existing unsigned attributes or a new empty attributes hashtable
static boolean	isDetachedSignature(org.bouncycastle.cms.CMSSignedData cmsSignedData)	Checks if the signature is detached
static org.bouncycastle.asn1.cms.AttributeTable	replaceAttribute(org.bouncycastle.asn1.cms.AttributeTable attributeTable, org.bouncycastle.cms.CMSSignedData attributeToReplace, org.bouncycastle.cms.CMSSignedData attributeToAdd)	Returns a new AttributeTable with replaced attributeToReplace by attributeToAdd

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ARCHIVE_TIMESTAMP_HASH_ALGO

public static final DigestAlgorithm DEFAULT_ARCHIVE_TIMESTAMP_HASH_ALGO

Method Detail

generateCMSSignedData

public static org.bouncycastle.cms.CMSSignedData generateCMSSignedData(org.bouncycastle.cms.CMSSignedDataGenerator generator,
                                                                       org.bouncycastle.cms.CMSTypedData content,
                                                                       boolean encapsulate)

This method generate CMSSignedData using the provided #CMSSignedDataGenerator, the content and the indication if the content should be encapsulated.

Parameters:

generator -

content -

encapsulate -

Returns:

generateDetachedCMSSignedData

public static org.bouncycastle.cms.CMSSignedData generateDetachedCMSSignedData(org.bouncycastle.cms.CMSSignedDataGenerator generator,
                                                                               org.bouncycastle.cms.CMSProcessableByteArray content)
                                                                        throws DSSException

Throws:

DSSException

getDERSignedAttributes

public static org.bouncycastle.asn1.DERTaggedObject getDERSignedAttributes(org.bouncycastle.cms.SignerInformation signerInformation)

Parameters:

signerInformation - SignerInformation

Returns:

DERTaggedObject representing the signed attributes

getSignedContent

public static byte[] getSignedContent(org.bouncycastle.cms.CMSTypedData cmsTypedData)

This method returns the signed content extracted from a CMSTypedData

Parameters:

cmsTypedData - CMSTypedData cannot be null

Returns:

the signed content extracted from CMSTypedData

getUnsignedAttributes

public static org.bouncycastle.asn1.cms.AttributeTable getUnsignedAttributes(org.bouncycastle.cms.SignerInformation signerInformation)

This method returns the existing unsigned attributes or a new empty attributes hashtable

Parameters:

signerInformation - the signer information

Returns:

the existing unsigned attributes or an empty attributes hashtable

getSignedAttributes

public static org.bouncycastle.asn1.cms.AttributeTable getSignedAttributes(org.bouncycastle.cms.SignerInformation signerInformation)

This method returns the existing signed attributes or a new empty attributes hashtable

Parameters:

signerInformation - the signer information

Returns:

the existing signed attributes or an empty attributes Hashtable

getAttributesFromByteArray

public static org.bouncycastle.asn1.cms.AttributeTable getAttributesFromByteArray(byte[] encodedAttributes)

This method returns an AttributeTable parsed from ASN.1 encoded representation

Parameters:

encodedAttributes - ASN.1 encoded AttributesTable

Returns:

AttributeTable created from given encodedAttributes

addSigningCertificateAttribute

public static void addSigningCertificateAttribute(org.bouncycastle.asn1.ASN1EncodableVector signedAttributes,
                                                  DigestAlgorithm digestAlgorithm,
                                                  CertificateToken signingToken)

Method to add signing certificate to ASN.1 DER encoded signed attributes. Certificate will be added as either signing-certificate or signing-certificate-v2 attribute depending on digest algorithm being used.

Parameters:

signedAttributes - Signed attributes to append signing certificate to

digestAlgorithm - the digest algorithm to be used

signingToken - The signing certificate to be append

replaceAttribute

public static org.bouncycastle.asn1.cms.AttributeTable replaceAttribute(org.bouncycastle.asn1.cms.AttributeTable attributeTable,
                                                                        org.bouncycastle.cms.CMSSignedData attributeToReplace,
                                                                        org.bouncycastle.cms.CMSSignedData attributeToAdd)
                                                                 throws IOException,
                                                                        org.bouncycastle.cms.CMSException

Returns a new AttributeTable with replaced attributeToReplace by attributeToAdd

Parameters:

attributeTable - AttributeTable to replace value in

attributeToReplace - CMSSignedData to be replaced

attributeToAdd - CMSSignedData to replace by

Returns:

a new AttributeTable

Throws:

IOException - in case of encoding error

org.bouncycastle.cms.CMSException - in case of CMSException

getUnsignedAttribute

public static org.bouncycastle.asn1.cms.Attribute getUnsignedAttribute(org.bouncycastle.cms.SignerInformation signerInformation,
                                                                       org.bouncycastle.asn1.ASN1ObjectIdentifier oid)

Returns an unsigned attribute by its given oid

Parameters:

signerInformation - SignerInformation to get attribute from

oid - ASN1ObjectIdentifier of the target attribute

Returns:

Attribute

isDetachedSignature

public static boolean isDetachedSignature(org.bouncycastle.cms.CMSSignedData cmsSignedData)

Checks if the signature is detached

Parameters:

cmsSignedData - CMSSignedData

Returns:

TRUE if the signature is detached, FALSE otherwise

getOriginalDocument

public static DSSDocument getOriginalDocument(org.bouncycastle.cms.CMSSignedData cmsSignedData,
                                              List<DSSDocument> detachedDocuments)

Returns the original document from the provided cmsSignedData

Parameters:

cmsSignedData - CMSSignedData to get original document from

Returns:

original DSSDocument

getContentToBeSign

public static org.bouncycastle.cms.CMSTypedData getContentToBeSign(DSSDocument toSignData)