Issuing licences for windows digital rights management

Question

I am Trying to issue licences for windows digital rights
management
with coldfusion. This is what i have so far.. any help would
be
appreciated.
I am able to get the licence in the LicenseResponse variable,
but i
dont know how to send it out. I read some stuff about the
coldfusion
Response interface but i just can't seem to get it to work.
Thanks in advance for any help.
<cfset contentowner_publickey = "xxx">
<cfset seed = "xxx">
<cfobject type="com"
action="create"
class="Wmrmobjs.WMRMChallenge"
name="ChallengeObj"
context="local">
<cfobject type="com"
action="create"
class="Wmrmobjs.WMRMHeader"
name="HeaderObj"
context="local">
<cfobject type="com"
action="create"
class="Wmrmobjs.WMRMKeys"
name="KeysObj"
context="local">
<cfobject type="com"
action="create"
class="Wmrmobjs.WMRMRights"
name="RightsObj"
context="local">
<cfobject type="com"
action="create"
class="Wmrmobjs.WMRMLicGen"
name="LicGenObj"
context="local">
<cfobject type="com"
action="create"
class="Wmrmobjs.WMRMResponse"
name="ResponseObj"
context="local">
<cfset strLicenseRequested = #FORM.challenge#>
<cfset ChallengeObj.Challenge = #strLicenseRequested#>
<cfset clientinfo = ChallengeObj.ClientInfo>
<cfset varHeader = ChallengeObj.Header>
<cfset HeaderObj.Header = #varHeader#>
<cfset lResult =
HeaderObj.Verify(#contentowner_publickey#)>
<cfif #lResult# EQ 0>
<cfabort>
</cfif>
<!---<cfset indiversion =
HeaderObj.IndividualizedVersion()>
<cfset LicGenObj.IndividualizedVersion =
#indiversion#>--->
<cfset kid = HeaderObj.KeyID>
<cfset indiVersion = "2.2">
<cfset KeysObj.KeyID = #kid#>
<cfset KeysObj.Seed = #seed#>
<cfset varKey = KeysObj.GenerateKey()>
<cfset RightsObj.MinimumSecurityLevel = 500>
<!---<cfset RightsObj.BeginDate = Now()>
<cfset RightsObj.ExpirationDate = Now()>--->
<cfset RightsObj.AllowPlayOnPC = true>
<cfset RightsObj.AllowTransferToSDMI = true>
<cfset RightsObj.PMRights = 17>
<cfset RightsObj.PMAppSecurity = 999>
<cfset RightsObj.AllowBackupRestore = false>
<cfset RightsObj.AllowCopy = false>
<cfset RightsObj.DeleteOnClockRollback = false>
<!---<cfset RightsObj.DisableOnClockRollback =
true>--->
<cfset sRights = RightsObj.GetAllRights()>
<cfset LicGenObj.KeyID = #varKey#>
<cfset call = LicGenObj.SetKey("", #varKey#)>
<cfset call = LicGenObj.Attribute("LICENSESERVER",
http://www.myDomain.com")>
<cfset LicGenObj.Rights = #sRights#>
<cfset LicGenObj.Priority = 10>
<cfset LicGenObj.ClientInfo = #clientinfo#>
<cfset LicGenObj.IndividualizedVersion = #indiVersion#>
<cfset LicGenObj.BindToPubKey =
#contentowner_publickey#>
<cfset varLicense = LicGenObj.GetLicenseToDeliver()>
<cfset call = ResponseObj.AddLicense("2.0.0.0",
#varLicense#)>
<cfset LicenseResponse =
ResponseObj.GetLicenseResponse()>
THIS IS NOT CORRECT BUT I THINK IT SHOUDL BE SOMETHING LIKE
THIS BELOW
<cfscript>
response.write(#LicenseResponse#);
</cfscript>
I am able to get the licence in the LicenseResponse variable,
but i
dont know how to send it out. I read some stuff about the
coldfusion
Response interface but i just can't seem to get it to work.
Thanks in advance for any help.
Reply

Answer 1

Um, I don't know that there's any. I mean, there could be, but as far as I know, the rights management has to do with the file and the reader, not the download server. If you want to prevent downloads by unregistered users, there's plenty of info out there on securing your web site. But once the file is downloaded, it can be given to anyone, and your web server has nothing to do with that. That's where the DRM stuff comes into play.