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  1. JDK
  2. JDK-5108581

SecureRandom class unable to generate faster random nos on faster machines

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Not an Issue
    • Affects Version/s: 5.0
    • Fix Version/s: None
    • Component/s: security-libs
    • Labels:
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      Description

      SecureRandom class takes a longer time to generate PRNG on Linux-Amd -SuSE 8.2 systems.

      Ideally, this process of PRNG should be faster on a faster machine & slower on a slower machine.

      But below are some timings on a different os/hw for generating 20000 random bits, & checking their randomness as per FIPS 140-1.

      j2sesqe.india.sun.com - Solaris9-Sun-Fire-280R-UltraSPARC-III+ - Time 2 sec
      jbackupblr.india.sun.com -Solaris10-Ultra-5/10-UltraSPARC-IIi - Time 5 sec
      jdsn10.india.sun.com - Linux RH-AS3.0 Intel P4 CPU 2.6GHz - Time 2 sec
      jlab324.india.sun.com - Linux-SuSE 8.2-Amd-Athlon HX-1.3 GHz - Time 11 min
      jdsn8.india.sun.com - WinXP Pro-Intel P4 CPU 2.4 GHz - Time 2 sec

      I have attached the source file for testing on any other machines & for debugging & another bug details http://hestia.sfbay.sun.com/cgi-bin/bug?id=5046409, which is the source for this bug.

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              Assignee:
              andreas Andreas Sterbenz
              Reporter:
              duke J. Duke (Inactive)
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