SignedCms.RemoveSignature Method

Definition

Namespace:

System.Security.Cryptography.Pkcs

Assembly:

System.Security.Cryptography.Pkcs.dll

Removes the specified signature from the SignerInfos collection.

Overloads

RemoveSignature(Int32)	Removes the signature at the specified index of the SignerInfos collection.
RemoveSignature(SignerInfo)	The RemoveSignature(SignerInfo) method removes the signature for the specified SignerInfo object.

RemoveSignature(Int32)

Source:

SignedCms.cs

Removes the signature at the specified index of the SignerInfos collection.

C#

public void RemoveSignature(int index);

Parameters

index

Int32

The zero-based index of the signature to remove.

Exceptions

InvalidOperationException

A CMS/PKCS #7 message is not signed, and index is invalid.

ArgumentOutOfRangeException

index is less than zero.

-or-

index is greater than the signature count minus 1.

CryptographicException

The signature could not be removed.

-or-

An internal cryptographic error occurred.

RemoveSignature(SignerInfo)

Source:

SignedCms.cs

The RemoveSignature(SignerInfo) method removes the signature for the specified SignerInfo object.

C#

public void RemoveSignature(System.Security.Cryptography.Pkcs.SignerInfo signerInfo);

Parameters

signerInfo

SignerInfo

A SignerInfo object that represents the countersignature being removed.

Exceptions

ArgumentNullException

A null reference was passed to a method that does not accept it as a valid argument.

ArgumentOutOfRangeException

The value of an argument was outside the allowable range of values as defined by the called method.

CryptographicException

A cryptographic operation could not be completed.