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[Cipher Sender](https://github.com/High5Apps/cipher-sender) is free, ad-free, and open source.\n\n[Get it free](https://apple.co/2PgMzzj) on the iOS App Store\n\n## Ciphers\nCipher Sender includes some of the most popular ciphers and codes from throughout history including:\n- [A1Z26 Cipher](https://cryptii.com/pipes/a1z26-cipher)\n- [Atbash Cipher](https://en.wikipedia.org/wiki/Atbash)\n- [Caesar Shift Cipher](https://en.wikipedia.org/wiki/Caesar_cipher)\n- [Keyboard Shift Cipher](https://www.dcode.fr/keyboard-shift-cipher)\n- [Monoalphabetic Substitution](https://en.wikipedia.org/wiki/Substitution_cipher)\n- [Morse Code](https://en.wikipedia.org/wiki/Morse_code)\n- [Rail Fence Cipher](https://en.wikipedia.org/wiki/Rail_fence_cipher)\n- [ROT13](https://en.wikipedia.org/wiki/ROT13)\n- [Vigenere Cipher](https://en.wikipedia.org/wiki/Vigen%C3%A8re_cipher)\n\n### Add a new Cipher\nCipher inputs and outputs are currently limited to [ASCII](https://en.wikipedia.org/wiki/ASCII) characters.\n\n1. Add a new subclass of \n[`KeyedCipher`](https://github.com/High5Apps/cipher-sender/blob/master/cipher-sender/model/KeyedCipher.h), \n[`KeylessCipher`](https://github.com/High5Apps/cipher-sender/blob/master/cipher-sender/model/KeylessCipher.h), or\n[`AbstractCipher`](https://github.com/High5Apps/cipher-sender/blob/master/cipher-sender/model/AbstractCipher.h), \nunder [`cipher-sender/model/ciphers`](https://github.com/High5Apps/cipher-sender/tree/master/cipher-sender/model/ciphers)\n2. Add your new cipher to [`CipherFactory.m`](https://github.com/High5Apps/cipher-sender/blob/master/cipher-sender/model/ciphers/CipherFactory.m)\n3. Add unit tests for your new cipher to [`cipher_sender_unit_tests.m`](https://github.com/High5Apps/cipher-sender/blob/master/cipher-sender-unit-tests/cipher_sender_unit_tests.m)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhigh5apps%2Fcipher-sender","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fhigh5apps%2Fcipher-sender","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhigh5apps%2Fcipher-sender/lists"}