This topic has not yet been rated - Rate this topic

CmsSigner.UnsignedAttributes Property

.NET Framework 4

The UnsignedAttributes property retrieves the CryptographicAttributeObjectCollection collection of unsigned PKCS #9 attributes to be associated with the resulting SignerInfo content. Unsigned attributes can be modified without invalidating the signature.

Namespace: System.Security.Cryptography.Pkcs
Assembly: System.Security (in System.Security.dll)

Syntax

C++

Copy

public CryptographicAttributeObjectCollection UnsignedAttributes { get; }

Property Value

Type: System.Security.Cryptography.CryptographicAttributeObjectCollection
A CryptographicAttributeObjectCollection collection that represents the unsigned attributes. If there are no unsigned attributes, the property is an empty collection.

Remarks

An example of an unsigned attribute that might be included in the CryptographicAttributeObjectCollection collection retrieved by the UnsignedAttributes property is a countersignature.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

CmsSigner Class

System.Security.Cryptography.Pkcs Namespace

Certificate

Certificates

DigestAlgorithm

IncludeOption

SignedAttributes

SignerIdentifierType

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)

Community Content Add

FAQ