IZ84940: PERFORMANCE ISSUE IN SECURERANDOM.ENGINEGENERATESEED DUE TO CACHING OF SYSTEM.CURRENTTIMEMILLIS

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APAR status

  • Closed as program error.

Error description

  • Component: IBM JCE
    
    Envt: 150 SR11
    
    Description:
    
    SecureRandom.engineGenerateSeed runs slow and takes 17 seconds
    
    System.currentTimeMillis() caches the time, causing an inner
    loop to spin until the cache is refreshed while generating
    entropy in SecureRandom.java.
    
    JVMs affected: 142, 50, 60
    
    JARs affected: ibmjceprovider.jar, IBMSecureRandom.jar (6.0
    alone)
    

Local fix

  • Level 3 to update
    

Problem summary

  • SecureRandom.engineGenerateSeed runs slow and takes 17 seconds.
    

Problem conclusion

  • Affects ibmjceprovider.jar.  Hursley defect 170944.  Likely
    available in 1.4.2 SR13-FP8, 5.0 SR12-FP3, and 6.0 SR 9-fp3.
    (Also affects JCEFIPS, which customer has not requested, but a
    fix will be made FIPS at next opportunity).
    
    SVN build date: 20100927_01 (for 6.0) 20100927_02 (for
    6_26)
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ84940

  • Reported component name

    TIV JAVA CRYPTO

  • Reported component ID

    TIVSECJCE

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-09-14

  • Closed date

    2010-09-28

  • Last modified date

    2011-04-26

  • 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

    TIV JAVA CRYPTO

  • Fixed component ID

    TIVSECJCE

Applicable component levels

  • R100 PSY

       UP



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Document information


More support for:

Tivoli Components - Java Security
JCE

Software version:

100

Reference #:

IZ84940

Modified date:

2011-04-26

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