rhinoKakaoTalkDBDecrypter

rhinoKakaoTalkDBDecrypter

_working on 2020.08.28

• Update : 2020:08.28
  • new key 'extr.ursra' added.
  • From 9.0.0 , Kakaotalk started to use JNI to generate key.
  • see
    • com.kakao.talk.util.DataBaseResourceCrypto
    • libdream.so -> Java_com_kakao_talk_dream_Projector_incept

Functions

function	return	description
deriveKey(Number userId,Number encType)	UnsignedByte[] key	generate AES key for KakaoTalkDB from userId and encType.
decrypt(UnsignedByte[] key, String encrypted)	String decrypted	decrypt encrypted text by using key from deriveKey()

userId,encType for data

table	userId	encType
chat_logs	COLUMM 'user_id' of each row	see COLUMM 'v' of each row
friends	COLUMM 'user_id' of TABLE 'open_profile' or (SELECT id FROM friendes WHERE _id = 2)	COLUMM 'enc' of each row

KDBManger

sample usage example. you can use this module to get decrypted chat info or friend info