I wanted to if it is possible to read a KeyID from an encrypted file using WMDRM 10?
Of course it is a clear text somehow, but is it possible? how?
Thanks!
I wanted to if it is possible to read a KeyID from an encrypted
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I wanted to if it is possible to read a KeyID from an encrypted file using WMDRM 10?
Of course it is a clear text somehow, but is it possible? how?
Thanks!
One easy answer is that you can binary-parse the file and look for the
<WMRMHEADER>tag and the<KID>tag within it (both Unicode-encoded). The key ID is within the<KID>tag.The correct (but much harder) way is to use Windows Media Format 11 SDK and the
IWMDRMReader::GetDRMProperty()method with theg_wszWMDRM_DRMHeader_KeyIDconstant. However, you are gonna need WMDRM “stub libs” from Microsoft in order to do that (i.e. be a DRM licensee).