Title :
Agreement of a restricted secret key
Author_Institution :
Inst. of Network Coding, Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
A secret key agreement problem is proposed with the additional restriction that the key is a function of a given secret source. An inner bound to the achievable rates, error and secrecy exponents is derived. The maximum key rate strongly achievable with positive exponents is characterized. The result leads to class of admissible restrictions on the key functions that does not diminish the strongly achievable key rate.
Keywords :
cryptography; inner bound; key functions; maximum key rate; restricted secret key agreement; secrecy exponents; secret source; Encoding; Entropy; Indexes; Privacy; Vectors; Zinc;
Conference_Titel :
Information Theory Proceedings (ISIT), 2012 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
978-1-4673-2580-6
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2012.6283585
