Abstract
is the backbone for secure communication over networks. The rapid growth of digital data and its security raises the concern for developing more advanced techniques in cryptography. Cryptography is the physical process that scrambles the information by rearrangement and substitution of content, making it unreadable to anyone except the person capable of unscrambling it. Whereas the techniques used for deciphering a message without any knowledge of enciphering is called as Cryptanalysis i.e., breaking the code. Now cryptography is not limited to only text data. Algorithms are also there for different data like image, audio, video etc. Throughputs, Speed, CPU time, Battery power, memory requirement are few parameters on which cryptographic algorithms are analyzed. In the present paper analysis of some common algorithms like DES, 3DES, AES, Blowfish, Twofish, ThreeFish, RC4 and RC6 are conducted on the above parameters to find out a best solution. This paper provides a comprehensive introduction about some of the existing cryptographic techniques and their performance for all data types particularly audio files. Keywordsryptography, Bio-Cryptography, LFSR (Linear Feedback Shift Register), ASG (Alternating Step Generator), avalanche effect
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