Errors while encrypting audio file using AES algorithm ?

i have run this http://nevonprojects.com/aes-source-code-inmatlab/

AES on my audio file it is giving me errors......like plaintext should be vector of 16 elements not a cell array..i have removed that errors then i complie it now it is giving me these errors......please me in removing these error

errors are

??? Error using ==> bitxor Inputs must be unsigned integers of the same class or scalar doubles.

?????Error in ==> add_round_key at 14 state_out = bitxor (state_in, round_key);

?????Error in ==> cipher at 97 state = add_round_key (state, round_key);

??????Error in ==> aes_demo at 41 ciphertext = cipher (plaintext1, w, s_box, poly_mat, 1);

Answer 1

[sree takeoff]

Hi I am working on AES encryption and decryption in my project.

I have a .mp4 file which is encrypted using "AES/CBC/pkcs5padding".

I have the key and iv values which is used to encrypt the first 256 bytes of the audio file.

I need to decrypt the file's first 256 bytes using the same algorithm , key and iv values.

I have followed some links (link1,link2).

I got a audio player demo and tried to implement my part(AES encryption and decryption) as demo.

Below I explained the code what I have done.

This method reads the data from encrypted file which is under res/raw folder.

https://takeoffprojects.com/takeoffprojects