Here is a lightweight simple plugin to dump a game's savedata key.
I know that there are others like SGDeemer or FreeCheat but this one works in games where SGDeemer fails/crashes the game (like Duael Invaders) and it is much faster since it is only dumping the key, and with FreeCheat you need to go through a bunch of options to dump the key, just enable this plugin and it'll be ready to dump the key.
The savedata key is dumped to ms0:/PSP/SAVEPLAIN/(SAVEDATAFOLDER)/(GAMEID).bin and it is ready to be used with SED for PSP or hgoel's SED for PC.
Oh yeah, there is no fancy menu.
Here's the download, source included (GPLv3).
v1.7:
SGKeyDumper v1.7.zip
- Older downloads
[spoiler]v1.7:
Now properly saves the game key on the PSP Go. (Omega2058)
Added some new checks for when the main game module is loaded, no more hard coded delay times. (qwikrazor87)
v1.6:
Added support for PSP Go internal storage, defaults to the memory stick, if it's not available it saves to ef0:/.
v1.5:
Now dumps game key to ms0:/PSP/GAME/SED/gamekey/, thanks to eigthdayregret for the suggestion.
Changed delay to 5 seconds.
v1.4:
15 second delay added by Omega2058
v1.3:
The plugin now waits until the system returns booted status, had yet more issues with certain games.
v1.2:
The plugin now waits until the first user module is loaded, still had issues starting some games, now fixed.
v1.1:
Added one more second to the delay at the start of the plugin, some games wouldn't start.
v1:
initial release[/spoiler]



