perl-Convert-Ascii85
Encoding and decoding of ascii85/base85 strings
This module implements the _Ascii85_ (also known as _Base85_) algorithm for encoding binary data as text. This is done by interpreting each group of four bytes as a 32-bit integer, which is then converted to a five-digit base-85 representation using the digits from ASCII 33 ('!') to 117 ('u'). This is similar to MIME::Base64 but more space efficient: The overhead is only 1/4 of the original data (as opposed to 1/3 for Base64).
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