An MMSE approach to the secrecy capacity of the MIMO Gaussian wiretap channel
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
MIMO Gaussian broadcast channels with confidential messages
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
Improving wireless physical layer security via cooperating relays
IEEE Transactions on Signal Processing
Secure relaying: can publicly transferred keys increase degrees of freedom?
Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
Secure communications with insecure feedback: breaking the high-SNR ceiling
IEEE Transactions on Information Theory
Secure distributed lossless compression with side information at the eavesdropper
Proceedings of the 5th International ICST Conference on Performance Evaluation Methodologies and Tools
Achievable secrecy rates for wiretap OFDM with QAM constellations
Proceedings of the 5th International ICST Conference on Performance Evaluation Methodologies and Tools
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Security is one of the most important issues in communications. Security issues arising in communication networks include confidentiality, integrity, authentication and non-repudiation. Attacks on the security of communication networks can be divided into two basic types: passive attacks and active attacks. An active attack corresponds to the situation in which a malicious actor intentionally disrupts the system. A passive attack corresponds to the situation in which a malicious actor attempts to interpret source information without injecting any information or trying to modify the information; i.e., passive attackers listen to the transmission without modifying it. Information Theoretic Security focuses on confidentiality issues, in which passive attacks are of primary concern. The information theoretic approach to achieving secure communication opens a promising new direction toward solving wireless networking security problems. Compared to contemporary cryptosystems, information theoretic approaches offer advantages such as eliminating the key management issue; are less vulnerable to the man-in-the-middle and achieve provable security that is robust to powerful eavesdroppers possessing unlimited computational resources, knowledge of the communication strategy employed including coding and decoding algorithms, and access to communication systems either through perfect or noisy channels. Information Theoretic Security surveys the research dating back to the 1970s which forms the basis of applying this technique in modern systems. It proceeds to provide an overview of how information theoretic approaches are developed to achieve secrecy for a basic wire-tap channel model as well as for its extensions to multiuser networks. It is an invaluable resource for students and researchers working in network security, information theory and communications.