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SignerInfo.CheckHash Method

Definition

The CheckHash() method verifies the data integrity of the CMS/PKCS #7 message signer information. CheckHash() is a specialized method used in specific security infrastructure applications in which the subject uses the HashOnly member of the SubjectIdentifierType enumeration when setting up a CmsSigner object. CheckHash() does not authenticate the signer information because this method does not involve verifying a digital signature. For general-purpose checking of the integrity and authenticity of CMS/PKCS #7 message signer information and countersignatures, use the CheckSignature(Boolean) or CheckSignature(X509Certificate2Collection, Boolean) methods.

public:
 void CheckHash();
public void CheckHash ();
member this.CheckHash : unit -> unit
Public Sub CheckHash ()

Exceptions

A cryptographic operation could not be completed.

Remarks

This method does not provide authentication of the CMS/PKCS #7 message signer information.

Applies to

See also