Crediar (aka BroadOn on twitter) releasd 3DSaveTool. You can use it to find the xor key and encrypt/decrypt EEPROM savefiles from 3ds games!
Some 3DSaveTool related Tweets from him:
Source: http://twitter.com/BroadOn
Some 3DSaveTool related Tweets from him:
QUOTE said:->@0xabad1dea The EEPROM of 3DS cards is encrypted via an unique per game 512byte xor'key, game roms seem(!) to use that aswell not sure yet!! vor ungefähr 3 Stunden via web als Antwort auf 0xabad1dea
->just released 3DSaveTool you can use it to find the xor key and encrypt/decrypt EEPROM savefiles from 3ds games! http://bit.ly/dJwcoP vor ungefähr 4 Stunden via web
->Ooops looks like the same fail applies to games! http://bit.ly/eQSrkD (No April's Fool!) 2:35 AM Apr 1st via web
->That savefile is from the EEPROM which can freely be written and read! Yes 3DS card games still save to the card! 1:50 AM Apr 1st via web
->Good news everyone! Erant found a slight flaw in the savefile encryption of Ridge Racer! Line 405 is my nickhttp://bit.ly/g4SNUR 6:58 AM Mar 31st via web
Source: http://twitter.com/BroadOn