HEXSecure Full

/Small/Easy-to-use/No unnecessary stuff/Clear & simple interface/Ad-free/

This app is the more professional version of HEXSecure. This app has more functions as HEXSecure Pro, for example there is a password safe, it is about 3 times smaller, requires less permissions and you don't need to download two apps to have all features, just one! If you didn't trust HEXSecure, I have some good news: because of the removed libraries, it does not use internet permission! Proguard is used in order to make harder the reverse-engineering of the source code!

This application is designed to encrypt smaller files or simple text. It is the improvement/successor of the old app TXTEncrypt, with better algorithms, and more user-friendly and modern interface. This app uses non-standard, closed-source algorithms, which makes it perfectly suitable for encrypting sensitive data. Though the strength of these algorithms is not officially tested, they seem to be quite strong. You can choose AES if you would like to encrypt files.
You can choose between 5 algorithms, which have similar bases. The strongest one is "Threedog2", which is also used for the encryption of the files. The file encryption has a 32 MB limitation, due to memory management, but it will be removed in the next release. AES is also supported with block sizes 128, 192 & 256 bits and SHA-512 sum can chosen to be used as key. Warning! The password storage is beta yet, I am not responsible for any data loss! Always make a backup!

18 different hash algorithms: CRC32, Adler32, MD2, MD4, MD5, SHA-1, SHA-256, SHA-384, SHA-512, Whirlpool, RIPEMD-128, RIPEMD-160, RIPEMD-256, RIPEMD-320, Tiger, Tiger2, GOST, sum32.
Can hash or get the checksum of files (max. 128MB) or plain text.
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Usage:
If you encrypt a text, the result will be copied to the clipboard of your device, which means, that you have to go to the desired place, (for example open the SMS application, Messenger or Notebook) and paste the text. (long-press on the field, and choose the paste button in the "floating" menu)
If you decrypt a text, paste it to the text-field, or write there manually, and enter the correct key, then press the decrypt button.
If you encrypt or decrypt a file, first, press the file chooser button. In the opened window, navigate to the file, which you'd like to en/decrypt, and click on it. Automatically, the file will be saved to the same place with the same name, but a ".encrypted" extension will be added. If the output file already exists, check the overwrite box, to replace it with the new one.
You can share the encrypted text with other app, such as SMS app, Messenger, Email, etc. without having to copy-paste. Just press the share button (next to encrypt) and choose the app you'd like to use. To decrypt the received encrypted text, press the share button in that app (if there is) and choose HEXSecure (Decrypt text) in the list.
Password safe: when you first open it, give a very strong key, since you can only change it by deleting all your existing passwords within the "safe"! To export or import the passwords, hit the menu button and choose the option you want.