Non-traditional encryption methods: Moving toward electrochemical cryptography

Cybersecurity and encryption are critical in diverse applications from simple emails to high-priority government secrets. It is best accomplished by an “unbreakable” cipher or one which is only decrypted by those with a matching cipher key to the initial encryption. Recent advances have incorporated quantitative data as an asymmetric encryption key. With this method, the sender and receiver each run the same experiment to encode and decode the message of interest. Experimental asymmetric keys can come from DNA, enzymatic assays, and most recently, electrochemical data. This manuscript summarizes recent advances in cryptography and outlines new electrochemical techniques.