IBM Support

PH05010: IDZ HOST CONNECTION EMULATOR FAILS TO CONNECT WITH TLS AND 256 BIT CYPHER SUITE.

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APAR status

  • Closed as program error.

Error description

  • In IBM Developer for z Systems - IDz - v14.1.3,
Host Connection Emulator (HCE) fails to connect when using TLS,
FIPS mode and 256 bit or higher cypher suite.

When consoleLog and debug are enabled, log shows the following
cypher from HCE:

HODJSSEImpl.configureSSLSocket : Enabled ciphers : [
SSL_RSA_WITH_3DES_EDE_CBC_SHA,
SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA,
SSL_RSA_WITH_AES_128_CBC_SHA,
SSL_DHE_RSA_WITH_AES_128_CBC_SHA,
SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA,
SSL_DHE_DSS_WITH_AES_128_CBC_SHA,
SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA
]

javax.net.ssl.SSLHandshakeException:
Received fatal alert: handshake_failure

The server certificate chain is null

Local fix

  • There is no known workaround at this time

Problem summary

  • Option needed to add custom ciphers to support 256-bit cipher
suites.

Problem conclusion

  • The option has been added.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PH05010
    • 

  • Reported component name
    DEV FOR Z SYS
    • 

  • Reported component ID
    5724T0700
    • 

  • Reported release
    E12
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2018-11-09
    • 

  • Closed date
    2019-03-22
    • 

  • Last modified date
    2019-03-22
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Fix information


    

  • Fixed component name
    DEV FOR Z SYS
    • 

  • Fixed component ID
    5724T0700
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSJK49","label":"IBM Developer for z Systems"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"E12","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            22 March 2019
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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