L_DicomGetMacAlgorithm

Summary

Returns the Message Authentication Code (MAC) Algorithm (0400,0015) used in the creation of the specified Digital Signature.

Syntax

L_LTDIC_API L_TCHAR* L_DicomGetMacAlgorithm(hDS,pSignatureItem)

Parameters

HDICOMDS hDS

A DICOM handle.

pDICOMELEMENT 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 MAC Algorithm (0400,0015) used in the creation of the specified Digital Signature. The return value can be NULL. Currently, the possible values are:

Comments

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 Algorithm (0400,0015) under the referenced MAC Parameters Sequence Item specifies the algorithm used in generating the Message Authentication Code (MAC). The encrypted MAC is the digital signature itself. You can use this function to obtain the value of this Data Element: the expected values are: "RIPEMD160", "SHA1", and "MD5".

In addition to this function, the following functions can be used to get information about the Digital Signature:

• L_DicomGetSignatureUID
• L_DicomGetSignatureDateTime
• L_DicomGetSignedElementsCount
• L_DicomGetSignedElement
• L_DicomGetMacTransferSyntax
• L_DicomSaveCertificate

Required DLLs and Libraries

• 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

Platforms

Win32, x64

See Also

Functions

• L_DicomGetSignature
• L_DicomFindSignature
• L_DicomGetSignatureUID
• L_DicomGetSignatureDateTime
• L_DicomGetSignedElementsCount
• L_DicomGetSignedElement
• L_DicomGetMacTransferSyntax
• L_DicomSaveCertificate

Topics

• Working with Digital Signatures

Example

For an example, refer to L_DicomVerifySignature.