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The team presents a proof-of-concept where they force an encryption algorithm to transiently exit earlier, resulting in the exposure of reduced-round ciphertext.

In AIP Advances, the team presents its method that uses quantum random numbers as encryption keys, disperses the keys via Sharmir's secret sharing algorithm, applies erasure coding within ciphertext, and securely transmits the data through QKD-protected networks to distributed clouds.

In the case of steganography, one of those distributions represents the cover text, and the other represents the ciphertext, which contains the hidden message.

Then, the program would use that language model to approximate a minimum entropy coupling between the cover text and the ciphertext, and that coupling would generate the string of characters that would be sent by text.

The first step would be to choose a cover text distribution — that is, a giant collection of possible words to use in the message, as would come from ChatGPT or a similar large language model — that would hide the ciphertext.