Fig. 2
From: Multicomponent reactions provide key molecules for secret communication
Steganographic key distribution. a The sender and recipient discuss details about their secret communication and exchange the list of components (assigns chemical information to alphanumerical symbols). b from left to right: The sender synthesizes one or several molecular keys and determines the alphanumeric code associated with the chemical structures according to the list of components. The alphanumeric code, e.g., A(001)-B(012)-C(007)-D(007) is serving as encryption key. The molecular key is concealed and transferred to the recipient via a steganographic channel. The recipient isolates the key and elucidates the molecular structure for decryption. c Levels of security and knowledge an adversary needs for decrypting the message
