SignatureProvider.HashStream(Object, Object) Method

Reference

Definition

Namespace:: Microsoft.Office.Core

Assembly:: office.dll

Important

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Allows a signature provider add-in to create a hash value for the document that you can use to determine if the document contents were tampered with after digital signing.

public:
 Array ^ HashStream(System::Object ^ QueryContinue, System::Object ^ Stream);

public Array HashStream (object QueryContinue, object Stream);

abstract member HashStream : obj * obj -> Array

Public Function HashStream (QueryContinue As Object, Stream As Object) As Array

Parameters

QueryContinue: Object

Provides a way to query the host application for permission to continue the hashing process.

Stream: Object

Contains the data stream.

Returns

Array

Array

Remarks

The SignatureProvider object is used exclusively in custom signature provider add-ins. This method is called once per signature data stream in a document. The return value is an array of bytes representing the hash value computed using the hash algorithm.

Applies to

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