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https://issues.apache.org/jira/browse/CASSANDRA-15132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Sanda updated CASSANDRA-15132:
-----------------------------------
    Summary: warning should not be logged when client auth is disabled for 
client encryption  (was: one-way TLS authentication for client encryption is 
broken)

> warning should not be logged when client auth is disabled for client 
> encryption
> -------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-15132
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15132
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Feature/Encryption
>            Reporter: John Sanda
>            Priority: Normal
>
> CASSANDRA-14652 caused a regression for client/native transport encryption. 
> It broken one-way TLS authentication where only the client authenticates the 
> coordinator node's certificate chain. This would be configured in 
> cassandra.yaml as such:
> {noformat}
> client_encryption_options:
>   enabled: true
>   keystore: /path/to/keystore
>   keystore_password: my_keystore_password
>   optional: false
>   require_client_auth: false
> {noformat}
> With the changes in CASSANDRA-14652, ServerConnection.java always assumes 
> that there will always be a client certificate chain, which will not be the 
> case with the above configuration.
> Here is the error that shows up in the logs:
> {noformat}
> ERROR [Native-Transport-Requests-1] 2019-05-17 18:20:20,016 
> ServerConnection.java:147 - Failed to get peer certificates for peer 
> /127.0.0.1:50736
> javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
>         at 
> sun.security.ssl.SSLSessionImpl.getPeerCertificateChain(SSLSessionImpl.java:501)
>  ~[na:1.8.0_202]
>         at 
> org.apache.cassandra.transport.ServerConnection.certificates(ServerConnection.java:143)
>  [main/:na]
>         at 
> org.apache.cassandra.transport.ServerConnection.getSaslNegotiator(ServerConnection.java:127)
>  [main/:na]
>         at 
> org.apache.cassandra.transport.messages.AuthResponse.execute(AuthResponse.java:75)
>  [main/:na]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:566)
>  [main/:na]
>         at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:410)
>  [main/:na]
>         at 
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
>  [netty-all-4.0.44.Final.jar:4.0.44.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>  [netty-all-4.0.44.Final.jar:4.0.44.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:35)
>  [netty-all-4.0.44.Final.jar:4.0.44.Final]
>         at 
> io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:348)
>  [netty-all-4.0.44.Final.jar:4.0.44.Final]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_202]
>         at 
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162)
>  [main/:na]
> {noformat}



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