# Information Security and Cryptography Research Group

## A Property of the Intrinsic Mutual Information

### Matthias Christandl, Renato Renner, and Stefan Wolf

IEEE International Symposium on Information Theory — ISIT 2003, IEEE, pp. 258, Jun 2003, This is the proceedings version of [ChReWo03a].

The so-called intrinsic mutual information is an important measure in the context of information-theoretic secret-key agreement. We prove a property of this information measure which, in particular, strongly simplifies its computation. More generally, our result is useful for analyzing the correlation of two random variables conditioned on a third one.

## BibTeX Citation

@inproceedings{ChReWo03b,
author       = {Matthias Christandl and Renato Renner and Stefan Wolf},
title        = {A Property of the Intrinsic Mutual Information},
booktitle    = {IEEE International Symposium on Information Theory --- ISIT 2003},
pages        = 258,
year         = 2003,
month        = 6,
note         = {This is the proceedings version of \cite{ChReWo03a}},
publisher    = {IEEE},
}