The very useful SGKeyDumper plugin for the PSP has been updated to v1.3 by resident developer and moderator qwikrazor87 adding some bug fixes for some games.
This plugin is able to dump a PSP game’s save-data key a lot faster than SGDeemer because it only dumps the key, it doesn’t decrypt the save-data.
This is a useful tool if you’re going to use SED for PC by another developer and moderator hgoel0974. You can use these combination of tools when looking for savedata exploits for the PSVita.
Download
You can download SGKeyDumper 1.3 here.
More details can be found at the official release thread