Enigma Keyboard - a keyboard with the ability to encrypt and decrypt text on the fly. The application uses the RSA encryption algorithm, which allows you to exchange keys over an unsecured channel. The keyboard can be used in the usual typing mode, if necessary, to encrypt the message, at the end of the text you just need to specify the name of the contact whose key will be encrypted. The resulting encrypted text can be decrypted by placing it in the clipboard.