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base32::hex - base32 extended hex encoding

Table Of Contents


package require Tcl 8.4
package require base32::core ?0.1?
package require base32::hex ?0.1?

::base32::hex::encode string
::base32::hex::decode estring


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.


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

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 Tcllib Trackers. Please also report any ideas for enhancements you may have for either package and/or documentation.

When proposing code changes, please provide unified diffs, 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.


base32, hex, rfc3548


Text processing


Public domain