Get the embed code

Preview the embedded widget

Close
Decipher

Decipher

Disco Viking

500 - 1,000 downloads

Add this app to your lists
Decipher is a brand new tablet-optimised tool to encrypt and decrypt text in a variety of ciphers.

Currently Includes:
- Atbash
- Binary
- Octal
- Hex
- Caesar Shift
- Keyword Cipher
- Substitution Cipher
- Vigenère Cipher
- Beaufort Cipher
- Hill Cipher
And more on the way! (Please email me with which ciphers you want to see!)

Also automatically cracks Caesar, Vigenere, Beaufort, Keyword and Substitution ciphers! (Note: cracking is done statistically, and so needs a large amount of ciphertext to be reliable)
Plus Frequency Analysis tools!

Also can display information about the ciphers from Wikipedia or practicalcryptography.com, making Decipher a great educational tool as well.

Choose between light and dark themes!

- PERMISSIONS -
INTERNET - Requires use of the internet to serve Wikipedia pages about the ciphers and to serve ads.
BILLING - Required to serve in-app purchase.

Recently changed in this version:

---1.1.1---
- Hugely improved accuracy of keyword cracker.

---1.1.0---
- Backported down to Android 2.2 Froyo!
- Added Theme support (Light & Dark themes currently available)!
- Revamped interface on small screens! Now with swipable tabs!
- Added Octal Cipher!
- Added Hex Cipher!
- Added Beaufort Cracker!
- Added Keyword Cracker!
- Added Substitution Cracker!
- Changed frequency analysis graph to look nicer!


Comments and ratings for Decipher

  • (80 stars)

    by Dan Turkel on 14/01/2013

    Dev posted on reddit looking for feedback and implemented much of feature requests in the comments. Awesome! Keep up the good work.

  • (80 stars)

    by James Phillips on 14/01/2013

    Great UI and clean easy to understand. I also like that it will give you a wikipedia article explaining each cipher. Tablet optimized, what more can one ask for.

  • (80 stars)

    by Richard Ramirez on 22/12/2012

    Started sending encrypted messages with a couple of friends and I can tell you now that I stopped caring if people looked into my messages, no one has a clue as to what they're saying. I guess that would have to be my favorite part about this app. Keep up

  • (80 stars)

    by Stefan Kopieczek on 14/12/2012

    Great for quickly encoding/decoding messages in a variety of ciphers, and the interface is very elegant and intuitive. The frequency analysis tool is a nice touch, and also shows digrams and trigrams - which other apps don't. Would be nice to have some s