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From "Guillaume Nodet (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SSHD-180) Add support for CTR and RC4 (ARCFOUR) ciphers
Date Wed, 12 Sep 2012 12:27:08 GMT

    [ https://issues.apache.org/jira/browse/SSHD-180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453942#comment-13453942
] 

Guillaume Nodet commented on SSHD-180:
--------------------------------------

Committing to https://svn.apache.org/repos/asf/mina/sshd/trunk ...
	A	sshd-core/src/docs/rfc4345.txt
	M	sshd-core/src/main/java/org/apache/sshd/SshClient.java
	M	sshd-core/src/main/java/org/apache/sshd/SshServer.java
	A	sshd-core/src/main/java/org/apache/sshd/common/cipher/AES128CTR.java
	A	sshd-core/src/main/java/org/apache/sshd/common/cipher/AES256CTR.java
	A	sshd-core/src/main/java/org/apache/sshd/common/cipher/ARCFOUR128.java
	A	sshd-core/src/main/java/org/apache/sshd/common/cipher/ARCFOUR256.java
	M	sshd-core/src/main/java/org/apache/sshd/common/cipher/BaseCipher.java
Committed r1383910

                
> Add support for CTR and RC4 (ARCFOUR) ciphers
> ---------------------------------------------
>
>                 Key: SSHD-180
>                 URL: https://issues.apache.org/jira/browse/SSHD-180
>             Project: MINA SSHD
>          Issue Type: Improvement
>    Affects Versions: 0.8.0
>            Reporter: Scott Dial
>            Assignee: Guillaume Nodet
>              Labels: features, security
>             Fix For: 0.8.0
>
>
> CBC ciphers are considered vulnerable[1]. It's now recommended practice to prefer CTR
ciphers, and some security guidelines even require disabling CBC ciphers[2]. Since Gerrit
use this library of code, it means that Gerrit is unusable in these environments.
> Unless I am mistaken, CTR ciphers are supported already by JCE, so this should be a straight-forward
patch that is mostly copy/pasting of the AES*CBC cipher code.
> [1] http://www.openssh.com/txt/cbc.adv
> [2] http://svn.fedorahosted.org/svn/aqueduct/trunk/compliance/Bash/STIG/rhel-5-beta/prod/GEN005511.sh

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