Comment on 8259896: Base64 MIME decoder should allow unrecognised characters within padding

[Raffaello Giulietti]

Hi,

in my opinion, the reporter of [1] is right in requiring that extraneous 
characters be discarded, even inside the padding.

Indeed, the first full paragraph on [2] reads:

"Any characters outside of the base64 alphabet are to be ignored in
base64-encoded data."

where "the base64 alphabet" also includes the padding character '=' and 
"base64-encoded data" extends to padding as well, because padding is an 
essential part of encoding.

The legitimate doubt expressed in comment [3] should thus be solved in 
favor of a bug fix.


My 2 cents
Greetings
Raffaello

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[1] https://bugs.openjdk.java.net/browse/JDK-8259896
[2] https://tools.ietf.org/html/rfc2045#page-26
[3] 
https://bugs.openjdk.java.net/browse/JDK-8259896?focusedCommentId=14395485&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14395485