Editing NPDRM
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'''The info on this page is an extract (and simplify) of talk page, conversations and forum posts, please digest the info and move it to this page | '''The info on this page is an extract (and simplify) of talk page, conversations and forum posts, please digest the info and move it to this page''' | ||
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= PS3 NPDRM SELF - SPRX decryption steps = | = PS3 NPDRM SELF - SPRX decryption steps = | ||
Once | Once the user is trying to start a [[SELF - SPRX|SELF]], the [[VSH|vsh]] looks for the [[SELF_-_SPRX#Program_Identification_Header|Program Identification Header]]. If the [[Program Type]] is NPDRM, then the [[SELF_-_SPRX#Supplemental_Header_Table|Supplemental Header Table NPDRM header]] is located. From this [[NPD]] header the [[VSH|vsh]] gets the [[NPDRM_Selfs#License_Type]]. | ||
If a Network | If a Network Licensed content is to be loaded, the [[VSH|vsh]] loads the act.dat and the .rif associated to the content (will download .rif to vsh process memory). | ||
For Local | For Local Licensed content too, the [[VSH|vsh]] locates a file with the same CONTENT ID as in NPDRM header, then the signatures are checked (last 0x28 bytes of both RIF and act.dat). | ||
If a Free | If a Free content (no license check: no need for .rif/act.dat) is detected then a [[Keys#klic_free_key|generic klicensee]] will be use for further steps (go to LV2). | ||
Using the RIF_KEY with the [[Keys#RIF.27s_act.dat_index_decryption_key|act.dat index decryption key]], it will obtain the actdatIndex, then the execution passes to [[LV2_Functions_and_Syscalls#LV2_Syscalls|LV2 Syscalls 471]]. | |||
This function has different parameters depending of the License Type: | |||
From there, the lv1 hypervisor | PAID: syscall471(npd.type, &npd.titleID, NULL, &actdat.keyTable[rif.actDatIndex], &rif.key, npd.license, &npd); | ||
FREE: syscall471(npd.type, &npd.titleID, freeklicensee, NULL, NULL, npd.license, &npd); | |||
:<small>*PAID can also include free games/apps too but require this licensing check</small> | |||
The lv2 keeps a memory table with contentID and the associated key: | |||
*Licensed content: the encrypted klicensee is converted to the klicensee (by using a [[Keys#klicensee_constant|constant value on lv2]], [[IDPS]] and the act.dat) and once transformed it is stored in memory table. | |||
*Free content: copies the titleID and the generic klicensee to the table. | |||
From there, the lv1 hypervisor by loading [[Hypervisor_Reverse_Engineering#appldr|Appldr]], will transform (again) this key by using the [[Keys#klic_dec_key|klic_dec_key]] and finally remove the NPDRM layer to start the [[SELF - SPRX]] decryption. | |||
= PS3 NPDRM EDAT decryption steps = | = PS3 NPDRM EDAT decryption steps = | ||
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See [[EDAT files]]. | See [[EDAT files]]. | ||
= | = License Type = | ||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
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! Value !! Type !! Remarks | ! Value !! Type !! Remarks | ||
|- | |- | ||
| 0 || | | 0 || Debug || SDAT | ||
|- | |- | ||
| | | 1 || Network License || It requires network authentication every time the content is launched. [http://en.wikipedia.org/wiki/PlayStation_Network_outage#Inability_to_use_PlayStation_3_content See inability example]. | ||
|- | |- | ||
| | | 2 || Local License || It requires first time activation online (paid content but also demo & free of charge content). | ||
|- | |- | ||
| | | 3 || Free || It does not require any license file nor console activation (act.dat). | ||
| | |||
|} | |} | ||
= Tools = | = Tools = | ||
* Tools to convert RAP to klicensee: [[Dev_Tools#ReactPSN_. | * Tools to convert RAP to klicensee: [[Dev_Tools#ReactPSN_.rap_-.3E_.rif_converter|Download links & usage]] | ||
{{File Formats}}<noinclude>[[Category:Main]]</noinclude> | {{File Formats}}<noinclude>[[Category:Main]]</noinclude> |