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https://issues.apache.org/jira/browse/CODEC-234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15991752#comment-15991752
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Gary Gregory commented on CODEC-234:
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How about quote from section 6 in https://tools.ietf.org/html/rfc4648:
{quote}
The Base 32 encoding is designed to represent arbitrary sequences of
octets in a form that needs to be case insensitive but that need not
be human readable.
{quote}
There is the same kind of text WRT base16, which would be neat to support (just
for fun ;-)
> Base32.decode should support lowercase letters
> ----------------------------------------------
>
> Key: CODEC-234
> URL: https://issues.apache.org/jira/browse/CODEC-234
> Project: Commons Codec
> Issue Type: Improvement
> Affects Versions: 1.10
> Reporter: Christopher Schultz
> Priority: Minor
> Attachments: CODEC-234.diff
>
>
> Base32.decode accepts a String input, but any lowercase characters are
> ignored -- e.g. Base32.decode("abcd2345") will give a different result than
> Base32.decode("ABCD1234") with no errors and a surprise to a developer.
> Accepting any case is desirable, as RFC 4648 makes it clear that
> case-insensitivity is a goal for Base32 encoding.
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