Xxx chat sms

So what should be self-evident from the diagram above is that if we recover a deleted text in the message table then the associated entry in the handle table must either exist or be recovered for us to establish who the third party in the conversation is, or we need to follow the links back to the chat table (each of which must also exist or be recovered).If there is a single additional participant in the conversation then the handle can be obtained from the handle_id in the messages table and a simple join used to show the other party: If the entry in the handle table is not present or cannot be recovered then providing that the relevant records in BOTH the chat_message_join and chat table are recovered then a slightly more complex join can be made to retrieve the same information.They do this by writing a 4 byte structure to the start of each block of free space that includes the size of the current block and a pointer to the next block.When a record is deleted from an SQLite table it usually results in a new block of free space comprising the deleted record of which the first four bytes are overwritten by this four byte structure.This was made possible by the new Structured Storage Manager in the Forensic Browser for SQLite, but the technique may be of interest to those who don’t use my software.In this article I’ll describe the structure of the database and how the different tables relate to each other.The screenshot below shows a page with two freeblocks (the unused space before the first record is not part of the linked list of freeblocks) the freeblock structure is underlined (a freeblock pointer of 0x0000 signifies the last freeblock): A major complication has now arisen that will affect our success rate when trying to recover records.

The interesting item here is the CKChat Watermark Message ID integer which my testing shows is the ID of one of the messages associated with this chat.

ROWID) that is not explicitly defined by the table schemas. Intuitively if you deleted a conversation from a phone you would expect all of the associated messages to be deleted and if you deleted all of the associated messages in a conversation then you would expect the associated entry in the conversation (chat) table to be deleted. The default set up for the is for the handle entry to be deleted when all message entries that point to it are deleted (more on this in another article).

So in summary when a conversation is deleted in its entirety the relevant entries in the message table are deleted and if there are no further messages which involve this contact the relevant row in the handle table is deleted.

If there are multiple participants, then the chain of tables must be followed back around, i.e.: message - handle – in order to recover all participants.

I’ll leave this query to you to work on – it’s straight forward and just the same as the previous query – just involving more tables.

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