Classes
class	AsymmetricAlgorithmSignature
	This class allows you to sign with either an RSACryptoServiceProvider/DSACryptoServiceProvider from a X509Certificate2, or from manually created RSACryptoServiceProvider/DSACryptoServiceProvider. Depending on the certificate's CSP, sometimes you will not be able to sign with SHA-256/SHA-512 hash algorithm with RSACryptoServiceProvider taken directly from the certificate. This class allows you to use a workaround in this case and sign with certificate's private key and SHA-256/SHA-512 anyway. More...

class	BouncyCastleDigest
	Implementation for digests accessed directly from the BouncyCastle library. More...

class	CertificateInfo
	Class containing static methods that allow you to get information from an X509 Certificate: the issuer and the subject. More...

class	CertificateUtil
	This class contains a series of static methods that allow you to retrieve information from a Certificate. More...

class	CertificateVerification
	This class consists of some methods that allow you to verify certificates. More...

class	CertificateVerifier
	Superclass for a series of certificate verifiers that will typically be used in a chain. More...

class	CrlClientOffline
	An implementation of the CrlClient that handles offline Certificate Revocation Lists. More...

class	CrlClientOnline
	An implementation of the CrlClient that fetches the CRL bytes from an URL. More...

class	CRLVerifier
	Class that allows you to verify a certificate against one or more Certificate Revocation Lists. More...

class	ExternalBlankSignatureContainer
	Produces a blank (or empty) signature. More...

interface	IApplicableSignatureParams
	Extension interface of ISignatureMechanismParams that also supports applying the parameters to a iText.Commons.Bouncycastle.Crypto.ISigner. More...

interface	ICrlClient
	Interface that needs to be implemented if you want to embed Certificate Revocation Lists (CRL) into your PDF. More...

interface	IExternalDigest
	ExternalDigest allows the use of implementations of iText.Commons.Digest.IMessageDigest other than BouncyCastleDigest. More...

interface	IExternalSignature
	Interface that needs to be implemented to do the actual signing. More...

interface	IExternalSignatureContainer
	Interface to sign a document. More...

interface	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. More...

interface	IOcspClient
	Interface for the Online Certificate Status Protocol (OCSP) Client. More...

interface	ISignatureMechanismParams
	Interface to encode the parameters to a signature algorithm for inclusion in a signature object. More...

class	IssuingCertificateRetriever
	IIssuingCertificateRetriever default implementation. More...

interface	ITSAClient
	Time Stamp Authority client (caller) interface. More...

interface	ITSAInfoBouncyCastle
	Interface you can implement and pass to TSAClientBouncyCastle in case you want to do something with the information returned More...

class	LtvVerification
	Add verification according to PAdES-LTV (part 4). More...

class	LtvVerifier
	Verifies the signatures in an LTV document. More...

class	OcspClientBouncyCastle
	OcspClient implementation using BouncyCastle. More...

class	OCSPVerifier
	Class that allows you to verify a certificate against one or more OCSP responses. More...

class	PadesTwoPhaseSigningHelper
	Helper class to perform signing operation in two steps. More...

class	PdfPadesSigner
	This class performs signing with PaDES related profiles using provided parameters. More...

class	PdfPKCS7
	This class does all the processing related to signing and verifying a PKCS#7 / CMS signature. More...

class	PdfSignature
	Represents the signature dictionary. More...

class	PdfSignatureApp
	A dictionary that stores the name of the application that signs the PDF. More...

class	PdfSignatureBuildProperties
	Dictionary that stores signature build properties. More...

class	PdfSigner
	Takes care of the cryptographic options and appearances that form a signature. More...

class	PdfTwoPhaseSigner
	Class that prepares document and adds the signature to it while performing signing operation in two steps (see PadesTwoPhaseSigningHelper for more info). More...

class	PKCS7ExternalSignatureContainer
	Implementation class for IExternalSignatureContainer. More...

class	PrivateKeySignature
	Implementation of the IExternalSignature interface that can be used when you have a iText.Commons.Bouncycastle.Crypto.IPrivateKey object. More...

class	RootStoreVerifier
	Verifies a certificate against a `KeyStore` containing trusted anchors. More...

class	RSASSAPSSMechanismParams
	Encode the signer's parameters for producing an RSASSA-PSS signature. More...

class	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. More...

class	SignaturePermissions
	A helper class that tells you more about the type of signature (certification or approval) and the signature's DMP settings. More...

class	SignaturePolicyInfo
	Class that encapsulates the signature policy information More...

class	SignatureUtil
	Utility class that provides several convenience methods concerning digital signatures. More...

class	SignerProperties
	Properties to be used in signing operations. More...

class	TimestampConstants
	Timestamp constants util class for internal usage only. More...

class	TSAClientBouncyCastle
	Time Stamp Authority Client interface implementation using Bouncy Castle org.bouncycastle.tsp package. More...

class	VerificationException
	An exception that is thrown when something is wrong with a certificate. More...

class	VerificationOK
	Class that informs you that the verification of a Certificate succeeded using a specific CertificateVerifier and for a specific reason. More...

Enumerations
enum	AccessPermissions { AccessPermissions.UNSPECIFIED, AccessPermissions.NO_CHANGES_PERMITTED, AccessPermissions.FORM_FIELDS_MODIFICATION, AccessPermissions.ANNOTATION_MODIFICATION }
	Access permissions value to be set to certification signature as a part of DocMDP configuration. More...

Enumeration Type Documentation

◆ AccessPermissions

enum iText.Signatures.AccessPermissions

strong

Access permissions value to be set to certification signature as a part of DocMDP configuration.

Enumerator
UNSPECIFIED	Unspecified access permissions value which makes signature "approval" rather than "certification".
NO_CHANGES_PERMITTED	Access permissions level 1 which indicates that no changes are permitted except for DSS and DTS creation.
FORM_FIELDS_MODIFICATION	Access permissions level 2 which indicates that permitted changes, with addition to level 1, are: filling in forms, instantiating page templates, and signing.
ANNOTATION_MODIFICATION	Access permissions level 3 which indicates that permitted changes, with addition to level 2, are: annotation creation, deletion and modification.

Classes

Enumerations

Enumeration Type Documentation

◆ AccessPermissions