Secure and Private Source Coding with Private Key and Decoder Side Information. (arXiv:2205.05068v3 [cs.IT] UPDATED)

The problem of secure source coding with multiple terminals is extended by
considering a remote source whose noisy measurements are the correlated random
variables used for secure source reconstruction. The main additions to the
problem include 1) all terminals noncausally observe a noisy measurement of the
remote source; 2) a private key is available to all legitimate terminals; 3)
the public communication link between the encoder and decoder is rate-limited;
and 4) the secrecy leakage to the eavesdropper is measured …

coding decoder information key private key