Package com.itextpdf.signatures

Interface Summary

Interface	Description
IApplicableSignatureParams	Extension interface of ISignatureMechanismParams that also supports applying the parameters to a Signature.
ICrlClient	Interface that needs to be implemented if you want to embed Certificate Revocation Lists (CRL) into your PDF.
IExternalDigest	ExternalDigest allows the use of implementations of MessageDigest other than BouncyCastleDigest.
IExternalSignature	Interface that needs to be implemented to do the actual signing.
IExternalSignatureContainer	Interface to sign a document.
IIssuingCertificateRetriever	Interface helper to support retrieving CAIssuers certificates from Authority Information Access (AIA) Extension in order to support certificate chains with missing certificates and getting CRL response issuer certificates.
IOcspClient	Interface for the Online Certificate Status Protocol (OCSP) Client.
IOcspClientBouncyCastle	Interface for the Online Certificate Status Protocol (OCSP) Client.
ISignatureMechanismParams	Interface to encode the parameters to a signature algorithm for inclusion in a signature object.
ITSAClient	Time Stamp Authority client (caller) interface.
ITSAInfoBouncyCastle	Interface you can implement and pass to TSAClientBouncyCastle in case you want to do something with the information returned
PdfSigner.ISignatureDataProvider
PdfSigner.ISignatureEvent	An interface to retrieve the signature dictionary for modification.

Class Summary

Class	Description
BouncyCastleDigest	Implementation for digests accessed directly from the BouncyCastle library bypassing any provider definition.
CertificateInfo	Class containing static methods that allow you to get information from an X509 Certificate: the issuer and the subject.
CertificateInfo.X500Name	Class that holds an X509 name.
CertificateInfo.X509NameTokenizer	Class for breaking up an X500 Name into it's component tokens, similar to StringTokenizer.
CertificateUtil	This class contains a series of static methods that allow you to retrieve information from a Certificate.
CertificateVerification	Deprecated. starting from 9.0.0.
CertificateVerifier	Deprecated. starting from 8.0.5.
CrlClientOffline	An implementation of the CrlClient that handles offline Certificate Revocation Lists.
CrlClientOnline	An implementation of the CrlClient that fetches the CRL bytes from an URL.
CRLVerifier	Deprecated. starting from 8.0.5.
DefaultIssuingCertificateRetriever	Empty IIssuingCertificateRetriever implementation for compatibility with the older code.
ExternalBlankSignatureContainer	Produces a blank (or empty) signature.
IssuingCertificateRetriever	IIssuingCertificateRetriever default implementation.
KeyStoreUtil	Utility class with some KeyStore related methods.
LtvVerification	Add verification according to PAdES-LTV (part 4).
LtvVerification.ValidationData
LtvVerifier	Deprecated. starting from 8.0.5.
OcspClientBouncyCastle	OcspClient implementation using BouncyCastle.
OCSPVerifier	Deprecated. starting from 8.0.5.
PadesTwoPhaseSigningHelper	Helper class to perform signing operation in two steps.
PdfPadesSigner	This class performs signing with PaDES related profiles using provided parameters.
PdfPKCS7	This class does all the processing related to signing and verifying a PKCS#7 / CMS signature.
PdfSignature	Represents the signature dictionary.
PdfSignatureApp	A dictionary that stores the name of the application that signs the PDF.
PdfSignatureBuildProperties	Dictionary that stores signature build properties.
PdfSigner	Takes care of the cryptographic options and appearances that form a signature.
PdfSigner.PdfSignerDocument
PdfSigner.SignatureApplier
PdfTwoPhaseSigner	Class that prepares document and adds the signature to it while performing signing operation in two steps (see PadesTwoPhaseSigningHelper for more info).
PKCS7ExternalSignatureContainer	Implementation class for IExternalSignatureContainer.
PrivateKeySignature	Implementation of the IExternalSignature interface that can be used when you have a PrivateKey object.
ProviderDigest	This class will return the MessageDigest associated with a certain hashing algorithm returned by the specified provider.
RootStoreVerifier	Deprecated. starting from 8.0.5.
RSASSAPSSMechanismParams	Encode the signer's parameters for producing an RSASSA-PSS signature.
SignatureMechanisms	Class that contains OID mappings to extract a signature algorithm name from a signature mechanism OID, and conversely, to retrieve the appropriate signature mechanism OID given a signature algorithm and a digest function.
SignaturePermissions	A helper class that tells you more about the type of signature (certification or approval) and the signature's DMP settings.
SignaturePolicyInfo	Class that encapsulates the signature policy information
SignatureUtil	Utility class that provides several convenience methods concerning digital signatures.
SignatureUtil.ContentsChecker
SignatureUtil.SorterComparator
SignerProperties	Properties to be used in signing operations.
SignMetaInfo
SignUtils
SignUtils.TsaResponse
TimestampConstants	Timestamp constants util class for internal usage only.
TSAClientBouncyCastle	Time Stamp Authority Client interface implementation using Bouncy Castle org.bouncycastle.tsp package.
VerificationOK	Deprecated. starting from 8.0.5.

Enum Summary

Enum	Description
AccessPermissions	Access permissions value to be set to certification signature as a part of DocMDP configuration.
LtvVerification.CertificateInclusion	Certificate inclusion in the DSS and VRI dictionaries in the CERT and CERTS keys.
LtvVerification.CertificateOption	Options for how many certificates to include.
LtvVerification.Level	What type of verification to include.
LtvVerification.RevocationDataNecessity	Option to determine whether revocation information is required for the signing certificate.
PdfSigner.CryptoStandard	Enum containing the Cryptographic Standards.

Exception Summary

Exception	Description
VerificationException	Deprecated. starting from 9.0.0 since all the classes that use this one are also deprecated in favour of new signature validation logic in the com.itextpdf.signatures.validation package.