论文标题
使用私钥和解码器侧信息安全和私人源编码
Secure and Private Source Coding with Private Key and Decoder Side Information
论文作者
论文摘要
使用多个终端编码的安全源编码的问题通过考虑一个噪声测量值是用于安全源重建的相关随机变量的远程源。该问题的主要添加包括1）所有终端均非本质观察到远程源的嘈杂测量； 2）所有合法终端都可以使用私钥； 3）编码器和解码器之间的公共通信链接是限制的； 4）根据编码器输入测量了对窃听器的保密泄漏，而与远程源相对于远程源测量了隐私泄漏。确切的速率区域的特征是在安全，隐私，通信和失真约束下使用私钥，远程源和解码器侧信息的有损源编码问题的特征。通过用可靠性约束替换失真约束，我们还可以获得无损情况的确切速率区域。此外，确定了标量离散时间高斯源和测量通道的损耗率区域。
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 with respect to the encoder input, whereas the privacy leakage is measured with respect to the remote source. Exact rate regions are characterized for a lossy source coding problem with a private key, remote source, and decoder side information under security, privacy, communication, and distortion constraints. By replacing the distortion constraint with a reliability constraint, we obtain the exact rate region also for the lossless case. Furthermore, the lossy rate region for scalar discrete-time Gaussian sources and measurement channels is established.
