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base32::hex - base32 extended hex encoding

Api

::base32::hex::encodestring
              This command encodes the given string in extended hex base32 and returns the encoded string as its
              result. The result may be padded with the character = to signal a partial encoding at the  end  of
              the input string.

       ::base32::hex::decodeestring
              This  commands  takes  the estring and decodes it under the assumption that it is a valid extended
              hex base32 encoded string. The result of the decoding is returned as the result of the command.

              Note that while the encoder will generate only uppercase characters this decoder accepts input  in
              lowercase as well.

              The  command will always throw an error whenever encountering conditions which signal some type of
              bogus input, namely if

              [1]    the input contains characters which are not valid output of a extended hex base32 encoder,

              [2]    the length of the input is not a multiple of eight,

              [3]    padding appears not at the end of input, but in the middle,

              [4]    the padding has not of length six, four, three, or one characters,

Bugs, Ideas, Feedback

       This document, and the package it describes, will undoubtedly contain bugs and  other  problems.   Please
       report such in the category base32 of the TcllibTrackers [http://core.tcl.tk/tcllib/reportlist].  Please
       also report any ideas for enhancements you may have for either package and/or documentation.

       When proposing code changes, please provide unifieddiffs, i.e the output of diff-u.

       Note  further  that  attachments  are strongly preferred over inlined patches. Attachments can be made by
       going to the Edit form of the ticket immediately after its creation, and then using the left-most  button
       in the secondary navigation bar.

Category

       Text processing

Code Map

       The code map used to convert 5-bit sequences is shown below, with the numeric id of the bit sequences  to
       the  left  and  the  character  used to encode it to the right. The important feature of the extended hex
       mapping is that the first 16 codes map to the digits and hex characters.

                0 0    9 9        18 I   27 R
                1 1   10 A        19 J   28 S
                2 2   11 B        20 K   29 T
                3 3   12 C        21 L   30 U
                4 4   13 D        22 M   31 V
                5 5   14 E        23 N
                6 6   15 F        24 O
                7 7        16 G   25 P
                8 8        17 H   26 Q

Description

       This  package  provides  commands  for  encoding and decoding of strings into and out of the extended hex
       base32 encoding as specified in the RFC 3548bis draft.

Keywords

       base32, hex, rfc3548

Name

       base32::hex - base32 extended hex encoding

Synopsis

       package require Tcl8.59

       package require base32::core?0.2?

       package require base32::hex?0.2?::base32::hex::encodestring::base32::hex::decodeestring

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See Also