Class SignerSpecs.AttributeGenerationSpec

Denotes whether a signature-timestamp attribute MUST be added (failure throws exception), or SHOULD be added (failure generates a warning) or SHOULD NOT be added.

Declaration

public GenerationRequirementLevels CmsSignatureTimestamp { get; set; }

Property Value

Type	Description
GenerationRequirementLevels

EnableLtv

Whether or not to create the signature with Long Term Validation elements. Default is true

Declaration

public bool EnableLtv { get; set; }

Property Value

Type	Description
Boolean

Remarks

If you intend to create a document timestamp extending the life-time protection of the PDF, it is not recommended to enable this in the PadesSigner usage moment but in the PadesTimestamper usage.

Filter

The preferred signature handler to use when validating this signature. If not set, the default is AdobePPKLite filter.

Declaration

public PadesFilters Filter { get; set; }

Property Value

Type	Description
PadesFilters

IncludeCmsSigningCertificateAttribute

Whether or not to include the signing-certificate attribute (or signing-certificate-v2, depending on the digest algorithm being used).

Declaration

public bool IncludeCmsSigningCertificateAttribute { get; set; }

Property Value

Type	Description
Boolean

Remarks

Please note that the signing certificate attribute is mandated by CAdES. A signature without a signing certificate attribute cannot truly be considered a CAdES signature and is subject to known attacks (signer substitution attack). The default value for this property is true on all policies returned by the SDK. We highly recommend that you do not set this property to false.

IncludeSignaturePolicyIdentifier

Wheter or not to include the signature-policy-identifier signed attribute (CAdES-BES vs CADES-EPES)

Declaration

public bool IncludeSignaturePolicyIdentifier { get; set; }

Property Value

Type	Description
Boolean

IncludeSigningDateM

Whether or not to include the signing time date M in the PDF signature. This signing time is not a trusted time and should not be used if your internal Cades signatures already has a trusted signing time value. Default is true

Declaration

public bool IncludeSigningDateM { get; set; }

Property Value

Type	Description
Boolean

SignaturePolicyQualifiers

In case IncludeSignaturePolicyIdentifier is set to true, denotes which signature policy qualifiers should be included in the signature-policy-identifier attribute. Currently, only the Uri qualifier is supported.

Declaration

public CadesPolicySpec.SignaturePolicyQualifiers SignaturePolicyQualifiers { get; set; }

Property Value

Type	Description
CadesPolicySpec.SignaturePolicyQualifiers

SubFilter

The preferred signature validation plugin to be used in PDF readers. If note set, default is none.

Declaration

public PadesSubFilters SubFilter { get; set; }

Property Value

Type	Description
PadesSubFilters