A Proposal of Substitute for Base85/64 – Base91

Abstract

The coding transformation method, called Base91, is characterized by its output of 91 printable ASCII characters. Base91 has a higher encoding efficiency than Base85/64, and higher encoding rate than Base85. Besides, Base91 provides compatibility with any bit-length input sequence without additional filling declaration except for his codeword self. One can use Base91 as a substitute for Base85 and Base64 to get some benefits in restricted situations.

Keywords

Base91; Base85; Base64; printable ASCII characters; IPv6

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