iaik.pdf.signature

Interface CertificationSignature

All Superinterfaces:

ApprovalSignature, PdfSignatureDetails

All Known Implementing Classes:

CertificationSignatureItext, CertificationSignaturePdfBox

public interface CertificationSignature
extends ApprovalSignature

Certification signature as specified in the PDF specification (PDF 32000). This signature is an approval signature extended by the settings whether certain modifications are allowed without invalidating the signature or not. A certification signature should also contain a legal content attestation, to confirm that the signer used or did not use any content that may change the document's appearance.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	CertificationSignature.ModificationPermission Specifies the types of objects, that may be changed without invalidating the certification signature.

Method Summary

Modifier and Type	Method and Description
LegalContentAttestation	getLegalContentAttestation() Extract the legal content attestation contained in the document.
CertificationSignature.ModificationPermission	getModificationPermission() Check what kind of modifications are allowed, returns null if the document contains no certification signature.

Methods inherited from interface iaik.pdf.signature.ApprovalSignature

getCertificateChain, getCMSSignature, getCrlRevocationStatus, getEncodedCmsSignature, getOcspRevocationStatus, getRevocationInformation, getSignatureTimeStamps, getSignatureTimeStampToken, getSignerCertificate, verifySignatureTimestampImprint, verifySignatureTimestampImprint, verifySignatureTimestamps, verifySignatureValue

Methods inherited from interface iaik.pdf.signature.PdfSignatureDetails

getName, getRevision, getRevision, getRevision, getSignatureDictionaryDate, getSigningTime, getSubfilter, isModified

Method Detail

getLegalContentAttestation

LegalContentAttestation getLegalContentAttestation()
                                            throws PdfSignatureException

Extract the legal content attestation contained in the document.

Returns:

the legal content attestation

Throws:

PdfSignatureException - if no signed document has been specified with initVerify

getModificationPermission

CertificationSignature.ModificationPermission getModificationPermission()
                                                                 throws PdfSignatureException,
                                                                        java.io.IOException

Check what kind of modifications are allowed, returns null if the document contains no certification signature.

Returns:

ModificationPermission as given in the certification signature or null if not defined

Throws:

PdfSignatureException - if more than one certification signature was found

java.io.IOException - if the document can't be read