L_DicomGetSignedElementsCount
#include "ltdic.h"
L_UINT32 EXT_FUNCTION L_DicomGetSignedElementsCount(hDS, pSignatureItem)
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HDICOMDS hDS; |
/* a DICOM handle */ |
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pDICOMELEMENT pSignatureItem; |
/* pointer to a Digital Signatures Sequence Item */ |
Returns the number of Data Elements covered by the specified Digital Signature.
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Parameter |
Description |
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hDS |
A DICOM handle. |
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pSignatureItem |
Pointer to a DICOMELEMENT structure that specifies the Digital Signatures Sequence Item which corresponds to the Digital Signature. This cannot be NULL. |
Returns
The number of Data Elements covered by the specified Digital Signature.
Comments
The Digital Signatures Sequence Item of a Digital Signature should reference an Item under the Message Authentication Code (MAC) Parameters Sequence associated with the Digital Signatures Sequence. The Data Elements Signed (0400,0020) under the referenced MAC Parameters Sequence Item specifies the signed Data Elements. You can use this function to obtain the number of Data Elements specified by this Data Element.
Along with this function, the L_DicomGetSignedElement function can be used to enumerate the Data Elements covered by the Digital Signature.
The following functions can also be used to get information about the Digital Signature:
Required DLLs and Libraries
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LTDIC For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application |
See Also
Example
For an example, refer to L_DicomVerifySignature.