Retrieve files protected by NQVault due to forgotten password I downloaded NQVault to my Samsung Galaxy S3 and I moved some videos to the vault. However, I couldn't get back the videos because I forgot my password. After trying many times to find out how to change the password, I became frustrated, so I deleted the app.

My question is, is there anyway for me to get my videos back from the app due to the fact it was deleted?
Apparently, NQVault does not really encrypt the files, but simply does a byte-by-byte xor operation with a key that is generated from the password. Oh, and it does that only for the first 128 bytes. Since a byte can only take 256 different values, you can simply brute-force the key you need to "decrypt" your file.
The author of the linked post has even published the code for a brute force attack. All you need to do is to compile the c code, edit the bash script to recognize whatever mime type your videos are and then run the script.