Just encrypt SecretAs

              Come up with an encryption key and the application encrypts /decrypts files of pictures, screenshots, documents of any format, including "txt", "PDF", "doc", "excel", "png", "jpeg", "mp3", and others.
The application is as simple as the description to it.
The application does not transmit any data, we recommend entering the secret keys when the Internet is disconnected.
The application uses a symmetric block encryption algorithm (block size 128 bits, key 128/192/256 bits), adopted as an encryption standard by the US government.
The design of the application contains the works of the following authors, links to the works are indicated in the file - https://pages.flycricket.io/just-encrypt-secre/privacy.html

Note: When encrypting large amounts of data, such as video, errors may occur. Check the size of the encrypted files, the size should not be zero.