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This app reportedly uses some (proprietary) algorithm related to Vigenére (broken) and OTP. Due to the key length, this cannot be a true OTP. This is some stream cipher with a very short (24b!) nonce, which makes the cipher vulnerable to xor attack if you are unlucky. The cipher is malleable. TL;DR: Do not use this app for serious cryptography. It is some unreviewed proprietary algorithm with too short nonces.
59 people found this review helpful
The final encryption is done via OTP, however the system uses a key stretcher in order to solve an issue of using weak and repeated keys. A secure key to begin with would be ideal but most users wont be able to do that. Hence all keys are stretched and then fed to OTP. Next patch will use an AES 256 layer and a public key negotiation protocol.
Very easy to use and it's work like it supposed to. Thank you devs for making this app. I have suggestion, maybe you can add something like about page, describing about the app because to be honest with you, I don't really understand hehe, but it's fine.
3 people found this review helpful