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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1316) Certificate verification rejects IPv6 addresses which are not String-equal
Date Tue, 05 Feb 2013 20:43:13 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13571710#comment-13571710

Oleg Kalnichevski commented on HTTPCLIENT-1316:

That works for me. Please do avoid static loggers, though.

> Certificate verification rejects IPv6 addresses which are not String-equal
> --------------------------------------------------------------------------
>                 Key: HTTPCLIENT-1316
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1316
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpConn
>    Affects Versions: 4.2.3
>            Reporter: James Livingston
>             Fix For: Future
>         Attachments: HTTPCLIENT-1316.patch
> org.apache.http.conn.ssl.AbstractVerifier.verify() does not correctly handle host name
verification when IPv6 addresses are used, as it simply does a string equality check when
doWildcard is false.
> http://tools.ietf.org/html/rfc5952#section-3.2.5 specifically mentions X.509 certificates
as an example when textual comparison of IPv6 addresses is not correct. Examples of incorrect
behaviour are with:
> * leading zeroes
> * zero compression
> * case insensitivity
> For example if you have a SSL certificate for the IP address 2001:0db8:aaaa:bbbb:cccc:0:0:0001,
the alternative representation of 2001:db8:AAAA:bbbb:cccc::1 should be accepted as a match.

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