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https://issues.apache.org/jira/browse/SSHD-506?focusedWorklogId=463869&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-463869
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ASF GitHub Bot logged work on SSHD-506:
---------------------------------------

                Author: ASF GitHub Bot
            Created on: 29/Jul/20 07:39
            Start Date: 29/Jul/20 07:39
    Worklog Time Spent: 10m 
      Work Description: jvz commented on pull request #132:
URL: https://github.com/apache/mina-sshd/pull/132#issuecomment-665138067


   Oh hey, sorry about that. This branch is basically ready at this point as I 
got stuck trying to get ChaCha20-Poly1305 to work properly. From what I recall, 
I already updated the code in this branch to match the same style I was hoping 
to use for that cipher (particularly by making the ChaCha version of 
`updateAAD` handle the encryption/decryption aspect, too). As that aspect 
shouldn't change too much, and based on the refactoring culture here, I don't 
think there's much need to wait any longer on the second feature.


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 463869)
    Time Spent: 7h 20m  (was: 7h 10m)

> Add support for aes128/256-gcm ciphers
> --------------------------------------
>
>                 Key: SSHD-506
>                 URL: https://issues.apache.org/jira/browse/SSHD-506
>             Project: MINA SSHD
>          Issue Type: Improvement
>            Reporter: Lyor Goldstein
>            Assignee: Lyor Goldstein
>            Priority: Major
>          Time Spent: 7h 20m
>  Remaining Estimate: 0h
>
> See:
> * [rfc5647|https://tools.ietf.org/html/rfc5647]
> * 
> [draft-igoe-secsh-aes-gcm-01|https://tools.ietf.org/html/draft-igoe-secsh-aes-gcm-01]
> * [OpenSSH v6.2|http://www.openssh.com/txt/release-6.2]
> * [JAVA AES 256 GCM encrypt/decrypt 
> example|https://javainterviewpoint.com/java-aes-256-gcm-encryption-and-decryption/]
>  - especially the usage of {{GCMParameterSpec}} to initialize the cipher
> * [OpenJDK 8 AESCipher.java source 
> code|https://github.com/frohoff/jdk8u-dev-jdk/blob/master/src/share/classes/com/sun/crypto/provider/AESCipher.java]
> ** See also 
> [CipherCore.java|https://github.com/frohoff/jdk8u-dev-jdk/blob/master/src/share/classes/com/sun/crypto/provider/CipherCore.java],
>  
> [FeedbackCipher.java|https://github.com/frohoff/jdk8u-dev-jdk/blob/master/src/share/classes/com/sun/crypto/provider/FeedbackCipher.java],
>  
> [GaloisCounterMode.java|https://github.com/frohoff/jdk8u-dev-jdk/blob/master/src/share/classes/com/sun/crypto/provider/GaloisCounterMode.java]



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