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https://issues.apache.org/jira/browse/SSHD-506?focusedWorklogId=445582&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-445582
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ASF GitHub Bot logged work on SSHD-506:
---------------------------------------

                Author: ASF GitHub Bot
            Created on: 14/Jun/20 17:15
            Start Date: 14/Jun/20 17:15
    Worklog Time Spent: 10m 
      Work Description: jvz commented on pull request #132:
URL: https://github.com/apache/mina-sshd/pull/132#issuecomment-643795423


   > I will do so some time soon - does this mean that I can merge this patch 
if I am satisfied with it ?
   
   Yes, I think so. I'm a little iffy on the `BaseGCMCipher` name for the class 
as I'm imagining a different use of AES/GCM along the lines of how OpenSSH 
implements ChaCha20-Poly1305 which would behave differently (the additional 
authenticated data would be encrypted but not authenticated using another AES 
key using AES/CTR like how in the packet length is encrypted). Otherwise ready 
to merge.


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

    Worklog Id:     (was: 445582)
    Time Spent: 6h 10m  (was: 6h)

> 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
>            Priority: Major
>          Time Spent: 6h 10m
>  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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