IBM Support

IV72097: ENCRYPTION TYPE 'AES128-CTS' CANNOT BE RECOGNIZED.

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APAR status

  • Closed as program error.

Error description

  • Error Message: aes128-cts is a short for
    aes128-cts-hmac-sha1-96. IBM's JGSS implementation does not
    recognize aes128-cts..\java -Dcom.ibm.security.jgss.debug=all
    -Dcom.ibm.security.krb5.Krb5Debug=all
    com.ibm.security.krb5.internal.tools.Ktab -k
    ..\..\..\test.keytab -a TestJazzUser2 TestJazzUser2 >
    ..\..\..\keytab.logI got this in the
    keytab.log:<OSB>KRB_DBG_KTAB<CSB> KeyTab:mainLoading the keytab
    file ... >>> KeyTab: load() entry length:
    60<OSB>KRB_DBG_KTAB<CSB> KeyTableInputStream:main: >>>
    KeyTabInputStream, readName():
    KERBEROS.HELSEN.TEST<OSB>KRB_DBG_KTAB<CSB>
    KeyTableInputStream:main: >>> KeyTabInputStream, readName():
    TestJazzUser2<OSB>KRB_DBG_CFG<CSB> Config:main: ConfigFile:
    c:\WINDOWS\krb5.ini<OSB>KRB_DBG_KDC<CSB> EncryptionKey:main: >>>
    EncryptionKey: config default key type is des-cbc-crc>>>JGSS
    Build-Level: 20140714<OSB>JGSS_DBG_PROV<CSB> IBMJGSSProvider
    (version 1.6) loaded<OSB>KRB_DBG_KTAB<CSB> KeyTabEntry:main: >>>
    KeyTabEntry: key tab entry size is 60Done!Service key for
    principal TestJazzUser2 savedKlist command shows that the keytab
    only has key of DES_CBC_CRC.krb5.ini contents relative to this
    issue:<OSB>libdefaults<CSB>default_realm =
    KERBEROS.HELSEN.TESTdefault_tkt_enctypes = aes128-cts
    rc4-hmacdefault_tgs_enctypes = aes128-cts
    rc4-hmacpermitted_enctypes = aes128-cts rc4-hmac
    .
    Stack Trace: N.A.
    .
    

Local fix

Problem summary

  • The implementation does not support the alias of AES encryption
    type.
    

Problem conclusion

  • Added support to AES aliases.The corresponding Austin defect is
    116493.The corresponding Hursley defect is 202697.The
    corresponding RTC Problem Report is 88031.Platform affected: All
    platforms.JVMs affected: 5.0, 6.0, 6.26, 7.0, 7.27.Jars
    affected: ibmjgssprovider.jar.The fix will be available in
    150_SR16_FP10, 160_SR16_FP4, 626_SR8_FP4, 170_SR9, 727_SR3.Build
    level is 20150325.
    .
    This APAR will be fixed in the following Java Releases:
       7    SR9       (7.0.9.0)
       6    SR16 FP4  (6.0.16.4)
       6 R1 SR8 FP4   (6.1.8.4)
       5.0  SR16 FP10 (5.0.16.10)
       7 R1 SR3       (7.1.3.0)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, information about the available
    Service Refreshes and Fix Packs can be found at:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV72097

  • Reported component name

    SECURITY

  • Reported component ID

    620700125

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-04-13

  • Closed date

    2015-04-13

  • Last modified date

    2015-04-13

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

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

    IV72098 IV72111

Fix information

  • Fixed component name

    SECURITY

  • Fixed component ID

    620700125

Applicable component levels

  • R260 PSY

       UP

  • R600 PSY

       UP

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Document Information

Modified date:
13 April 2015