TECHNIQUES FOR REALIZING SEMANTIC SECURITY IN COMMUNICATIONS SYSTEMS
摘要:
The invention disclosed techniques for enhancing a security level of a communication signal, comprising the following steps:
• receiving a message m as input data;
• adding artificial noise of a level NArt according to a function f-1(m) to the message m so that
o after a transmission of the communication signal x over a communication channel T with a noise level NT to a receiver that transforms the communication signal x to the communication signal y, the message remains readable to the receiver;
o after a transmission of the communication signal x over a communication channel E with a noise level NE to an eavesdropper that transforms the communication signal x to the communication signal z, the message gets unreadable to the eavesdropper.
信息查询
0/0