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== Description == | == Description == | ||
It is a unique 20 bytes (0x14) hexsequence inside your PSVita / PSTV. It is simply the SHA1 hash of [[openPSID]]. It is stored inside several files such as [[id.dat]] or calendar.db in order to check that the mememory card inserted was not previously in another PSVita, else a database refresh is needed. | |||
Why did SONY not simply used openPSID ? | |||
On PSP, openPSID was almost never used except for savedata. | |||
Why did | On PS3, openPSID was used for act.dat checks, savedata / trophies when no PSN account bounded. | ||
On PSVita, openPSID is used the same way as on PS3 but SONY secured still more its console by using the hash of openPSID and not openPSID itself. | |||
On PSP, | This way, it's harder for people to know their openPSID. But since we have tm0: partition read access from 3.00 to 3.60, we can just read 0x10 Bytes at offset 0x850 of tm0:npdrm/act.dat to get openPSID. | ||
On PS3, | |||
On PSVita, | |||
This way, it | |||
=== Location of the files where it is stored === | |||
[[Files_on_the_PS_Vita#ux0|ux0:]][[id.dat]] | [[Files_on_the_PS_Vita#ux0|ux0:]][[id.dat]] | ||
[[Files_on_the_PS_Vita#ux0|ux0:]]calendar/calendar.db | |||
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| calendar.db || tbl_app_authentication_info >> column open_psid >> 297C4C0FA1F5A6E374FE4FE65535E03DC1643F2C || The value of the Hexsequence is stored as a Text value | | calendar.db || tbl_app_authentication_info >> column open_psid >> 297C4C0FA1F5A6E374FE4FE65535E03DC1643F2C || The value of the Hexsequence is stored as a Text value | ||
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| [[File:psid.png|thumb|left]] || | | [[File:psid.png|thumb|left]] || | ||
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|} | |} | ||
=== Structure === | === Structure === | ||
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| DID || 20 bytes (0x14) || 297C4C0FA1F5A6E374FE4FE65535E03DC1643F2C | | DID || 20 bytes (0x14) || 297C4C0FA1F5A6E374FE4FE65535E03DC1643F2C | ||
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|} | |} | ||