Title :
Fast selective encryption scheme for MP3 files - Using GRAIN Stream Cipher
Author :
Biswas, Prabir Kumar ; Chowdhury, Dibakar Roy ; Dasgupta, K.S.
Author_Institution :
Dept. of Comput. Sci. & Eng., Indian Inst. of Technol., Kharagpur, Kharagpur, India
Abstract :
This paper explores the possibility of fast encryption of compressed audio data so as to be used in real time, information-sensitive audio transmission. To this end MP3 files were used as compressed audio files and some characteristic of the MP3 frames have been exploited to selectively encrypt the side information instead of whole data through stream cipher. The proposed scheme processes fast and hence is more congenial to real time audio transfer. The results to substantiate the claim of being faster than the usual way of encryption have been furnished here. And a detailed analysis of the security claim has been furnished here too.
Keywords :
Huffman codes; audio coding; cryptography; data compression; GRAIN stream cipher; Huffman coding; MP3 files; fast compressed audio data encryption; fast selective encryption scheme; information-sensitive audio transmission; secure real time audio communication; security claim analysis; Authentication; Encryption; IEC; Random variables; Sockets; Transform coding; Audio encryption; Huffman coding; MP3 file encryption; Semantic security; Stream cipher GRAIN;
Conference_Titel :
Security and Cryptography (SECRYPT), 2011 Proceedings of the International Conference on
Conference_Location :
Seville