- signatureItem
- The Digital Signatures Sequence Item that corresponds to the Digital Signature. This cannot be null.
Syntax
| Visual Basic (Declaration) | |
|---|---|
Public Function GetMacTransferSyntax( _ ByVal signatureItem As DicomElement _ ) As String | |
| Visual Basic (Usage) |  Copy Code |
|---|---|
| |
| C# | |
|---|---|
public string GetMacTransferSyntax( DicomElement signatureItem ) | |
| C++/CLI | |
|---|---|
public: String^ GetMacTransferSyntax( DicomElement^ signatureItem ) | |
Parameters
- signatureItem
- The Digital Signatures Sequence Item that corresponds to the Digital Signature. This cannot be null.
Return Value
The MAC Calculation Transfer Syntax UID (0400,0010) used in the creation of the specified Digital Signature. The return value can be a null reference (Nothing in Visual Basic).Example
For an example, refer to VerifySignature.
Remarks
The Digital Signatures Sequence Item of a Digital Signature should reference an item
under the MAC Parameters Sequence associated with the Digital Signatures Sequence. The
MAC Calculation Transfer Syntax UID (0400,0010) under the referenced MAC Parameters
Sequence Item specifies the Transfer Syntax used in the calculation of the Message
Authentication Code (MAC). The encrypted MAC is the digital signature itself. Call this method to obtain the value of this Data Element.
If the Data Set was properly encoded, the return value will be a Transfer Syntax that Explicitly includes the Value Representation (VR) and uses Little Endian encoding.
The following methods can also be used to get information about the Digital Signature:
Requirements
Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family