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Summary: We examine the problem of deciphering a file that has been Huffman coded, but not otherwise encrypted. We find that a Huffman code can be surprisingly difficult to cryptanalyze. We present a detailed analysis of the situation for a three-symbol source alphabet and present some results for general finite alphabets.
David W. Gillman +2 more
exaly +3 more sources
Optimality of Huffman Code in the Class of 1-Bit Delay Decodable Codes
For a given independent and identically distributed (i.i.d.) source, Huffman code achieves the optimal average codeword length in the class of instantaneous code with a single code table. However, it is known that there exist time-variant encoders, which
Kengo Hashimoto, Ken-Ichi Iwata
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