Examples of makwa.Makwa.verifyPassword()

makwa.Makwa.verifyPassword()
Verify a password against a string previously produced with {@code hashNewPassword}. If the reference string is unsuitable in some way (e.g. bad encoding, or using a modulus other than the one used for this context), then an exception is thrown. If the reference string is proper but the password does not match, then {@code false} is returned. @param pwd the password to verify @param ref the reference string (hashed password) @return {@code true} on correct password @throws MakwaException on format error

    Makwa mpriv = new Makwa(privKey, Makwa.SHA256,
      preHash, postHashLength, workFactor);


    String h1 = mpub.hashNewPassword("test1");
    check(mpub.verifyPassword("test1", h1));
    check(mpriv.verifyPassword("test1", h1));
    check(!mpub.verifyPassword("test2", h1));
    check(!mpriv.verifyPassword("test2", h1));
    String h2 = mpriv.hashNewPassword("test1");
    check(mpub.verifyPassword("test1", h2));
    check(mpriv.verifyPassword("test1", h2));

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    String h1 = mpub.hashNewPassword("test1");
    check(mpub.verifyPassword("test1", h1));
    check(mpriv.verifyPassword("test1", h1));
    check(!mpub.verifyPassword("test2", h1));
    check(!mpriv.verifyPassword("test2", h1));
    String h2 = mpriv.hashNewPassword("test1");
    check(mpub.verifyPassword("test1", h2));
    check(mpriv.verifyPassword("test1", h2));
    check(!mpub.verifyPassword("test2", h2));
    check(!mpriv.verifyPassword("test2", h2));

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    check(mpriv.verifyPassword("test1", h1));
    check(!mpub.verifyPassword("test2", h1));
    check(!mpriv.verifyPassword("test2", h1));
    String h2 = mpriv.hashNewPassword("test1");
    check(mpub.verifyPassword("test1", h2));
    check(mpriv.verifyPassword("test1", h2));
    check(!mpub.verifyPassword("test2", h2));
    check(!mpriv.verifyPassword("test2", h2));


    // Since each hash value uses its own salt, the strings
    // ought to be different.

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    check(!mpriv.verifyPassword("test2", h1));
    String h2 = mpriv.hashNewPassword("test1");
    check(mpub.verifyPassword("test1", h2));
    check(mpriv.verifyPassword("test1", h2));
    check(!mpub.verifyPassword("test2", h2));
    check(!mpriv.verifyPassword("test2", h2));


    // Since each hash value uses its own salt, the strings
    // ought to be different.
    check(!h1.equals(h2));
  }

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    Makwa mprivLarge = new Makwa(privKey, Makwa.SHA256,
      false, 0, 4096);


    String hsmall = mpubSmall.hashNewPassword("test1");
    String hlarge = mpubSmall.setNewWorkFactor(hsmall, 4096);
    check(mprivLarge.verifyPassword("test1", hlarge));
    hlarge = mprivSmall.setNewWorkFactor(hsmall, 4096);
    check(mpubLarge.verifyPassword("test1", hlarge));
    hsmall = mprivLarge.setNewWorkFactor(hlarge, 384);
    check(mpubSmall.verifyPassword("test1", hsmall));
  }

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    Makwa.DelegationContext dc =
      mpub.hashNewPasswordDelegate("test1", md);
    byte[] req = dc.getRequest();
    byte[] ans = Makwa.processDelegationRequest(req);
    String h = dc.doFinalToString(ans);
    check(mpriv.verifyPassword("test1", h));


    dc = mpub.verifyPasswordDelegate("test1", h, md);
    req = dc.getRequest();
    ans = Makwa.processDelegationRequest(req);
    check(dc.doFinalVerify(ans));

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    String ref = mpriv.hashNewPassword("speedtest");
    int cc = 2;
    for (;;) {
      long begin = System.currentTimeMillis();
      for (int m = 0; m < cc; m ++) {
        mpriv.verifyPassword("speedtest", ref);
      }
      long end = System.currentTimeMillis();
      long tt = end - begin;
      if (tt > 4000) {
        System.out.printf("priv/s = %.2f",

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