Cipher

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Qubinox Cipher is an encryption tool that uses One Time Padding (OTP) to encrypt and decrypt messages which can then be transmitted and received using e-mail or messaging apps.

The sender and receiver must have an identical random key file on their SD cards, this file should be generated and exchanged in person in advance of communication. Future versions may support additional less secure algorithms without this requirement.

OTP is unbreakable when used with a truly random key ("Communication Theory of Secrecy Systems", C. E. Shannon, 1949).