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  1. Qt
  2. QTBUG-80683

SHA3_256 fails when input data is bigger than 256M

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Duplicate
    • Affects Version/s: 5.12.0
    • Fix Version/s: None
    • Component/s: Core: Other
    • Labels:
      None
    • Platform/s:
      Windows

      Description

       

      // code placeholder
      TestResult calc_qt_sha3_256(char const* data, int len)
      {
          QTime t1 = QTime::currentTime();
          QCryptographicHash hash(QCryptographicHash::Sha3_256);
          hash.addData(data, len);
          QTime t2 = QTime::currentTime();
          TestResult res;
          res.sha = hash.result().toHex().toUpper();
          res.length = len;
          res.time = t1.msecsTo(t2);
          return res;
      }
      

      as codes above,

      when len < 256MB, the result is correct.

      when 256M < len < 512M, the app will be broken.

      when 512M < len , it works but the result is wrong.

       

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              Assignee:
              thiago Thiago Macieira
              Reporter:
              saintown saintown
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                Dates

                Created:
                Updated:
                Resolved:

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