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Cryptool

Cryptography and high security keystore Android application tool. It has a very useful floating tool and ball/bubble mode. It is only about 2 MB. It does not ask for permissions or do anything weird.

It has been developed keeping in mind these three words: fast, small and offline.

Encryption AES and Hash SHA-256:
- Easy encryption and hash computation of any text in any place and situation.
Keystore:
- Keep your keys away these fancy services that does not show the source code and send data all the time to the cloud.

The application is free software (GPLv3), you can follow its development in:
https://github.com/nfdz/Cryptool

Category : Tools

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Reviews (16)

Mr.. H. Jun 28, 2021     

Really good tool. Needs an update! Very useful and well designed. Recommend highly! PS, Instagram User...... seriously, if you don't understand how something works, that's YOUR fault! Read!

3. Dec 9, 2020     

Quite useless. No way to really decipher either message with an external source. Only useful for yourself which is kinda sad, as I wanted to use this to make puzzles for other people. Oh well.

Ang. S. May 19, 2020     

Best tool ever.. Love it... But little bit slow... Do some work on this app. To correct RC4..

red. 0. Oct 21, 2019     

Best tool I've used, great UI design.

Abh. M. T. Aug 22, 2020     

Very Nice XvIct8bVlahPsx5FuW9AHw== But if possible then please give option to change hash in original text

All. L. Sep 14, 2020     

Great & simple tool! Thanks.

Али. Π’. Jul 25, 2020     

the best tool for passwords, please keep it up

Uqa. M. Oct 25, 2019     

Previous Interface was Better. 😫

Gar. H. Aug 25, 2019     

Enjoying playing around with this app. Very good.

Ano. M. Nov 21, 2021     

Add 'FOSS' prominent in appname, title of page, description texts

Ibr. U. Apr 19, 2022     

This app very good

Sun. S. Apr 11, 2020     

πŸ‘ŒπŸ‘πŸ‘ Thanks for implementing "bypassing Android Clipboard" for inserting password to Encryption tab from keystore tab. Now touching key icon in keystore copies it to the password field of encryption screen without the use of Android Clipboard thus, improving security. Thanks for creating backup/restore.

A. G. u. Aug 7, 2018     

Great app. though. We use Android and Windows together more and more though, so it would be really useful if there was a simple compatible Windows app.

Jef. M. Jul 28, 2018     

Liked it

Giu. C. May 21, 2018     

It's fine. I don't know if it does cyphers other than AES with 256bit keys, though.

Vib. Jun 11, 2019     

best