[jira] Commented: (CODEC-91) Handling of embedded padding in base64 encoded data changed in 1.4

["Raphael Ackermann (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CODEC-91?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12869146#action_12869146 ] 

Raphael Ackermann commented on CODEC-91:
----------------------------------------

This might be related: When decoding a one byte string as shown below, the new behaviour returns an empty byte array whereas before it would return a byte array with 0 in it.

String enc = "1";
byte[] result = Base64.decodeBase64(enc.getBytes())

where in 1.3 result would be [0]
and in 1.4 result is an empty byte array []



> Handling of embedded padding in base64 encoded data changed in 1.4
> ------------------------------------------------------------------
>
>                 Key: CODEC-91
>                 URL: https://issues.apache.org/jira/browse/CODEC-91
>             Project: Commons Codec
>          Issue Type: Bug
>    Affects Versions: 1.4
>            Reporter: Chris Pimlott
>         Attachments: codec-91.patch
>
>
> 1.4 changed the way that embedded padding characters (i.e. "=") were handled when decoding base64 data.  Previously, the decoder ignored them and decoded all the data.  Now it stops upon encountering the first padding byte.  This breaks compatibility with previous versions.
> For example, in 1.4,
> b64.decode("Y29tbW9ucwo=".getBytes());
> gives the same result as
> b64.decode("Y29tbW9ucwo=Y29tbW9ucwo=".getBytes());

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