Reversible Data hiding in Encrypted Domain with Public Key Embedding Mechanism. (arXiv:2208.14510v1 [cs.CR])

Considering the prospects of public key embedding (PKE) mechanism in active
forensics on the integrity or identity of ciphertext for distributed deep
learning security, two reversible data hiding in encrypted domain (RDH-ED)
algorithms with PKE mechanism are proposed, in which all the elements of the
embedding function shall be open to the public, while the extraction function
could be performed only by legitimate users. The first algorithm is difference
expansion in single bit encrypted domain (DE-SBED), which is optimized from …

data domain encrypted key public