mirror of https://github.com/dirtbags/moth.git
Fall 2010 NSM wrap up / archive
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Neale Pickett
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fore!
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termin8r
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t3am
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Network Security Monitoring Summit
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==================================
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October 11-15, 2010, PNNL, Richland, WA
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After kicking the idea around at the DOE CYSEC conference in Atlanta
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earlier this year, Kevin and I were invited to run a smaller version of
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Tracer FIRE at the Fall NSM summit. Kevin had to pull out due to lack
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of management support, but I said I could still run a full event.
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I was asked if I could also provide training. I agreed to run the
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"net-re" category, but this fell through as they got enough other
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presenters. The contest was scheduled to go on for a 4-hour slot. I
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noted my event could be used as a buffer, since it could run for many
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hours.
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To prepare for this event, I added or fleshed out a few categories:
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* steg (steganography)
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* octopus (rapid network programming)
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* logger (logfile parsing)
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* printf (stack analysis/manipulation through printf)
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* pwnables (system administration)
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I rewrote the core infrastructure in C--it had been in Python--in an
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attempt to get Python out of the build. Python does not support
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cross-compiling, and Buildroot packages Python 2.5 (several years old)
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since it is the most recent version that can be tricked into
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cross-compiling. There is no remaining Python code in the build.
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I also changed the build in such a way that functionality could be put
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into packages, and packages cherry-picked for each contest. This
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removes the requirement to constantly re-build the entire image, while
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still providing most of the benefits gained from most of the server
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being read-only. It also allows for much larger packages than what fits
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in RAM, which was a last minute problem at TF2. Package size is now
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bounded only by the size of a squashfs (16EiB).
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The contest was also redesigned to remove the "flag server" and replace
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it with "tokens", good for one point each in a category. It was
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difficult to design puzzles around the "flag server" concept, but far
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more natural to come up with puzzles which hand out tokens. This meant
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the demise of the well-liked "badmath" category, the ill-concieved
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"kevin" category, and the "black box" categories ("pwnables" being a
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start at replacing this functionality).
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After everything was created and somewhat tested, I estimated I had
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enough material for about 60 hours of contest.
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Due to scheduling problems and the death of one presenter (!), I was
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asked to run the event for 12 hours instead of the initial 4.
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Categories enabled
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------------------
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* steg
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* octopus
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* pwnables
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* logger
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* sequence
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* net-re
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* bletchley
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Problems
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--------
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Leaving for the event I was not comfortable with the sparse amount of
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testing we were able to perform.
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There were a few problems which required intimate knowledge of the
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system to remedy on the spot. Several of these were serious:
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* the scoring system refused to recognize "net-re" as a valid category
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* some puzzles (especially in the steg category) didn't accept the
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correct answer
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Point values assigned to puzzles in steg arose as a major issue, causing
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one of the more advanced contestants to give up in frustration at around
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hour 9. He had been working hard on a 5 point puzzle when someone
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leapfrogged him with a 20 point puzzle which required much less effort.
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Many of the more advanced aspects to puzzles were not discovered. For
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instance, only 1 out of 5 tokens in logger was discovered. Only 1 out
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of 4 pwnables were attempted by any team.
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A UDP scan, it turns out, is very slow. Nobody found Octopus until I
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told them where it was, and by then it was too late to expect any
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results.
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The wireless router slowed down TCP port scans tremendously.
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Successes
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---------
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Fairly good progress was made in bletchley. This was the first contest
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in which anybody made any progress in this category.
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The reduced number of categories worked well.
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Careful team composition worked out much better than the haphazard team
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composition at TF2.
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The network infrastructure (a WL520-GU running OpenWRT) was once again
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fully up to the task.
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After talking with the contestant who gave up, and asking him to help me
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solve the problem, he was much more positive about the event.
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Everyone said they had a good time and learned new things.
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All software bugs were recoverable. The core game infrastructure proved
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reliable.
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There was a lot of buzz about our CTF exercise.
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/* green phosphor: #2a4 */
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<!DOCTYPE html>
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<html>
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<head>
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<title>Scoreboard</title>
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||||
<link rel="stylesheet" href="ctf.css" type="text/css">
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||||
<script type="application/javascript" src="scoreboard.js"></script>
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||||
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|
||||
"1972": ["#44ff44",[[1,1.00],[2,0.52],[3,0.86],[4,1.12],[5,1.39],[6,1.22],[7,1.13],[8,1.08],[9,1.04],[10,1.03],[11,1.05],[12,1.09],[13,0.92],[14,1.08],[15,1.03],[16,1.02],[17,1.15],[18,1.11],[19,1.10],[20,1.06],[21,1.05],[22,1.14],[23,1.13],[24,1.12],[25,1.08],[26,1.14],[27,1.05],[28,1.01],[29,1.00],[30,0.98],[31,1.00],[32,0.98],[33,0.97],[34,0.96],[35,0.93],[36,0.93],[37,0.94],[38,0.94],[39,0.93],[40,0.94],[41,0.92],[42,0.93],[43,0.92],[44,0.93],[45,0.93],[46,0.92],[47,0.92],[48,0.92],[49,0.93],[50,0.93],[51,0.91],[52,1.24],[53,1.24],[54,1.24],[55,1.25],[56,1.25],[57,1.24],[58,1.10],[59,1.08],[60,1.06],[61,1.06],[62,1.13],[63,1.11],[64,1.11],[65,1.03],[66,1.03],[67,1.00],[68,1.00],[69,1.00],[70,1.00],[71,1.00],[72,1.00],[73,1.00],[74,0.98],[75,0.99],[76,0.97],[77,0.97],[78,0.97],[79,0.97],[80,0.97],[81,0.96],[82,0.93],[83,0.93],[84,0.93],[85,0.93],[86,0.93],[87,0.93],[88,0.91],[89,0.91],[90,0.90],[91,0.90],[92,0.90],[93,0.90],[94,0.90],[95,1.89],[96,1.64],[97,1.56],[98,1.33],[99,1.39],[100,1.40],[101,1.40],[102,1.40],[103,1.26],[104,1.26],[105,1.26],[106,1.26],[107,1.25],[108,1.25],[109,1.23],[110,1.23],[111,1.24],[112,1.23],[113,1.23],[114,1.23],[115,1.23],[116,1.15],[117,1.44],[118,1.63],[119,1.40],[120,1.48],[121,1.48],[122,1.45],[123,1.45],[124,1.42],[125,1.54],[126,1.99],[127,1.65],[128,1.66],[129,1.66],[130,1.53],[131,1.53],[132,1.52],[133,1.52],[134,1.53],[135,1.52],[136,1.52],[137,1.53],[138,1.52],[139,1.53],[140,1.53],[141,1.53],[142,1.53],[143,1.50],[144,1.51],[145,1.51],[146,1.51],[147,1.52],[148,1.52],[149,1.52],[150,1.52],[151,1.53],[152,1.53],[153,1.53],[154,1.53],[155,1.54],[156,1.54],[157,1.54],[158,1.55],[159,1.55],[160,1.56],[161,1.56],[162,1.56],[163,1.57],[164,1.57],[165,1.57],]],
|
||||
"1861": ["#ff66ff",[[1,0.00],[2,0.01],[3,0.42],[4,0.42],[5,0.52],[6,1.07],[7,1.23],[8,1.34],[9,1.39],[10,1.40],[11,1.75],[12,1.72],[13,1.70],[14,1.54],[15,1.49],[16,1.61],[17,1.52],[18,1.59],[19,1.60],[20,1.58],[21,1.60],[22,1.56],[23,1.57],[24,1.59],[25,1.67],[26,1.65],[27,1.67],[28,1.79],[29,1.80],[30,1.77],[31,1.76],[32,1.73],[33,1.79],[34,1.76],[35,1.81],[36,1.81],[37,1.82],[38,1.83],[39,1.83],[40,1.82],[41,1.80],[42,1.79],[43,1.77],[44,1.77],[45,1.77],[46,1.74],[47,1.74],[48,1.74],[49,1.74],[50,1.74],[51,1.69],[52,1.53],[53,1.52],[54,1.52],[55,1.51],[56,1.51],[57,1.49],[58,1.41],[59,1.39],[60,1.33],[61,1.32],[62,1.30],[63,1.37],[64,1.37],[65,1.55],[66,1.54],[67,1.54],[68,1.54],[69,1.53],[70,1.53],[71,1.53],[72,1.58],[73,1.57],[74,1.55],[75,1.55],[76,1.50],[77,1.54],[78,1.53],[79,1.53],[80,1.52],[81,1.60],[82,1.56],[83,1.55],[84,1.55],[85,1.55],[86,1.55],[87,1.54],[88,1.41],[89,1.41],[90,1.48],[91,1.48],[92,1.48],[93,1.48],[94,1.48],[95,1.64],[96,1.64],[97,1.64],[98,1.64],[99,1.62],[100,1.62],[101,1.62],[102,1.62],[103,1.61],[104,1.61],[105,1.61],[106,1.61],[107,1.66],[108,1.66],[109,1.64],[110,1.64],[111,1.63],[112,1.63],[113,1.63],[114,1.63],[115,1.63],[116,1.52],[117,1.37],[118,1.28],[119,1.52],[120,1.37],[121,1.37],[122,1.35],[123,1.35],[124,1.43],[125,1.39],[126,1.16],[127,1.59],[128,1.59],[129,1.59],[130,1.45],[131,1.45],[132,1.45],[133,1.45],[134,1.45],[135,1.45],[136,1.45],[137,1.45],[138,1.45],[139,1.45],[140,1.44],[141,1.44],[142,1.44],[143,1.52],[144,1.52],[145,1.52],[146,1.52],[147,1.52],[148,1.52],[149,1.52],[150,1.52],[151,1.52],[152,1.52],[153,1.51],[154,1.51],[155,1.51],[156,1.51],[157,1.51],[158,1.51],[159,1.51],[160,1.51],[161,1.51],[162,1.51],[163,1.51],[164,1.51],[165,1.51],]],
|
||||
"1959": ["#8c7a69",[[1,1.00],[2,1.59],[3,1.96],[4,1.94],[5,1.64],[6,1.61],[7,1.54],[8,1.73],[9,1.72],[10,1.65],[11,1.35],[12,1.40],[13,1.63],[14,1.72],[15,1.83],[16,1.70],[17,1.68],[18,1.66],[19,1.67],[20,1.74],[21,1.74],[22,1.70],[23,1.71],[24,1.70],[25,1.65],[26,1.62],[27,1.75],[28,1.68],[29,1.68],[30,1.67],[31,1.67],[32,1.65],[33,1.60],[34,1.52],[35,1.51],[36,1.51],[37,1.51],[38,1.50],[39,1.50],[40,1.51],[41,1.57],[42,1.57],[43,1.55],[44,1.54],[45,1.54],[46,1.60],[47,1.60],[48,1.60],[49,1.60],[50,1.60],[51,1.66],[52,1.58],[53,1.59],[54,1.59],[55,1.59],[56,1.59],[57,1.57],[58,1.82],[59,1.88],[60,1.91],[61,1.92],[62,1.89],[63,1.86],[64,1.86],[65,1.78],[66,1.78],[67,1.85],[68,1.85],[69,1.85],[70,1.86],[71,1.86],[72,1.82],[73,1.82],[74,1.81],[75,1.81],[76,1.90],[77,1.86],[78,1.86],[79,1.87],[80,1.87],[81,1.80],[82,1.93],[83,1.93],[84,1.93],[85,1.93],[86,1.93],[87,1.93],[88,2.10],[89,2.10],[90,2.03],[91,2.03],[92,2.03],[93,2.03],[94,2.03],[95,1.88],[96,1.88],[97,1.99],[98,2.13],[99,2.16],[100,2.21],[101,2.24],[102,2.26],[103,2.15],[104,2.16],[105,2.16],[106,2.16],[107,2.13],[108,2.14],[109,2.13],[110,2.12],[111,2.12],[112,2.12],[113,2.12],[114,2.12],[115,2.12],[116,2.35],[117,2.20],[118,2.11],[119,2.12],[120,2.20],[121,2.19],[122,2.24],[123,2.25],[124,2.19],[125,2.11],[126,1.91],[127,1.82],[128,1.82],[129,1.82],[130,2.08],[131,2.08],[132,2.08],[133,2.08],[134,2.09],[135,2.09],[136,2.09],[137,2.09],[138,2.09],[139,2.09],[140,2.09],[141,2.09],[142,2.09],[143,2.04],[144,2.04],[145,2.04],[146,2.05],[147,2.05],[148,2.05],[149,2.05],[150,2.06],[151,2.06],[152,2.06],[153,2.07],[154,2.07],[155,2.07],[156,2.06],[157,2.06],[158,2.06],[159,2.06],[160,2.06],[161,2.06],[162,2.06],[163,2.06],[164,2.05],[165,2.05],]],
|
||||
});
|
||||
if (location.hash) {
|
||||
cycle();
|
||||
setInterval(cycle, 10000);
|
||||
}
|
||||
}
|
||||
window.onload = init;
|
||||
</script>
|
||||
<meta http-equiv="refresh" content="60">
|
||||
<style type="text/css">
|
||||
body { width: 100%; }
|
||||
.score { overflow: hidden; color: black; }
|
||||
.t1854 { background-color: #8888ff; }
|
||||
.t1972 { background-color: #44ff44; }
|
||||
.t1861 { background-color: #ff66ff; }
|
||||
.t1959 { background-color: #8c7a69; }
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<h1>Scoreboard</h1>
|
||||
<p id="debug"></p>
|
||||
<table id="scoreboard">
|
||||
<tr>
|
||||
<th>Overall</th>
|
||||
<th>bletchley (900)</th>
|
||||
<th>logger (446)</th>
|
||||
<th>netre (3350)</th>
|
||||
<th>pwnables (1396)</th>
|
||||
<th>sequence (11024)</th>
|
||||
<th>steg (705)</th>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>
|
||||
<div class="t1854 score" style="height: 14.40%;" onmouseover="highlight('1854')" onmouseout="restore('1854')">
|
||||
<!-- total --> termin8r: 0.86
|
||||
</div><div class="t1861 score" style="height: 25.15%;" onmouseover="highlight('1861')" onmouseout="restore('1861')">
|
||||
<!-- total --> fore!: 1.51
|
||||
</div><div class="t1972 score" style="height: 26.23%;" onmouseover="highlight('1972')" onmouseout="restore('1972')">
|
||||
<!-- total --> Special Characters: 1.57
|
||||
</div><div class="t1959 score" style="height: 34.22%;" onmouseover="highlight('1959')" onmouseout="restore('1959')">
|
||||
<!-- total --> t3am: 2.05
|
||||
</div> </td>
|
||||
<td>
|
||||
<div class="t1972 score" style="height: 11.11%;" onmouseover="highlight('1972')" onmouseout="restore('1972')">
|
||||
<!-- bletchley --> Special Characters: 100
|
||||
</div><div class="t1854 score" style="height: 16.67%;" onmouseover="highlight('1854')" onmouseout="restore('1854')">
|
||||
<!-- bletchley --> termin8r: 150
|
||||
</div><div class="t1861 score" style="height: 16.67%;" onmouseover="highlight('1861')" onmouseout="restore('1861')">
|
||||
<!-- bletchley --> fore!: 150
|
||||
</div><div class="t1959 score" style="height: 55.56%;" onmouseover="highlight('1959')" onmouseout="restore('1959')">
|
||||
<!-- bletchley --> t3am: 500
|
||||
</div></td>
|
||||
<td>
|
||||
<div class="t1854 score" style="height: 27.13%;" onmouseover="highlight('1854')" onmouseout="restore('1854')">
|
||||
<!-- logger --> termin8r: 121
|
||||
</div><div class="t1959 score" style="height: 30.72%;" onmouseover="highlight('1959')" onmouseout="restore('1959')">
|
||||
<!-- logger --> t3am: 137
|
||||
</div><div class="t1972 score" style="height: 42.15%;" onmouseover="highlight('1972')" onmouseout="restore('1972')">
|
||||
<!-- logger --> Special Characters: 188
|
||||
</div></td>
|
||||
<td>
|
||||
<div class="t1854 score" style="height: 0.54%;" onmouseover="highlight('1854')" onmouseout="restore('1854')">
|
||||
<!-- netre --> termin8r: 18
|
||||
</div><div class="t1972 score" style="height: 26.57%;" onmouseover="highlight('1972')" onmouseout="restore('1972')">
|
||||
<!-- netre --> Special Characters: 890
|
||||
</div><div class="t1959 score" style="height: 32.72%;" onmouseover="highlight('1959')" onmouseout="restore('1959')">
|
||||
<!-- netre --> t3am: 1096
|
||||
</div><div class="t1861 score" style="height: 40.18%;" onmouseover="highlight('1861')" onmouseout="restore('1861')">
|
||||
<!-- netre --> fore!: 1346
|
||||
</div></td>
|
||||
<td>
|
||||
<div class="t1854 score" style="height: 15.26%;" onmouseover="highlight('1854')" onmouseout="restore('1854')">
|
||||
<!-- pwnables --> termin8r: 213
|
||||
</div><div class="t1972 score" style="height: 23.57%;" onmouseover="highlight('1972')" onmouseout="restore('1972')">
|
||||
<!-- pwnables --> Special Characters: 329
|
||||
</div><div class="t1959 score" style="height: 26.93%;" onmouseover="highlight('1959')" onmouseout="restore('1959')">
|
||||
<!-- pwnables --> t3am: 376
|
||||
</div><div class="t1861 score" style="height: 34.24%;" onmouseover="highlight('1861')" onmouseout="restore('1861')">
|
||||
<!-- pwnables --> fore!: 478
|
||||
</div></td>
|
||||
<td>
|
||||
<div class="t1972 score" style="height: 20.92%;" onmouseover="highlight('1972')" onmouseout="restore('1972')">
|
||||
<!-- sequence --> Special Characters: 2306
|
||||
</div><div class="t1854 score" style="height: 26.36%;" onmouseover="highlight('1854')" onmouseout="restore('1854')">
|
||||
<!-- sequence --> termin8r: 2906
|
||||
</div><div class="t1861 score" style="height: 26.36%;" onmouseover="highlight('1861')" onmouseout="restore('1861')">
|
||||
<!-- sequence --> fore!: 2906
|
||||
</div><div class="t1959 score" style="height: 26.36%;" onmouseover="highlight('1959')" onmouseout="restore('1959')">
|
||||
<!-- sequence --> t3am: 2906
|
||||
</div></td>
|
||||
<td>
|
||||
<div class="t1854 score" style="height: 0.43%;" onmouseover="highlight('1854')" onmouseout="restore('1854')">
|
||||
<!-- steg --> termin8r: 3
|
||||
</div><div class="t1972 score" style="height: 33.05%;" onmouseover="highlight('1972')" onmouseout="restore('1972')">
|
||||
<!-- steg --> Special Characters: 233
|
||||
</div><div class="t1959 score" style="height: 33.05%;" onmouseover="highlight('1959')" onmouseout="restore('1959')">
|
||||
<!-- steg --> t3am: 233
|
||||
</div><div class="t1861 score" style="height: 33.48%;" onmouseover="highlight('1861')" onmouseout="restore('1861')">
|
||||
<!-- steg --> fore!: 236
|
||||
</div></td>
|
||||
</tr>
|
||||
</table>
|
||||
<canvas id="chart" width="800" height="300"></canvas>
|
||||
<p><a href="scoring.html">About scoring</a></p>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -0,0 +1,120 @@
|
|||
function dbg(o) {
|
||||
e = document.getElementById("debug");
|
||||
e.innerHTML = o;
|
||||
}
|
||||
|
||||
function torgba(color, alpha) {
|
||||
if (color.substring(0, 1) == "#") {
|
||||
var r = parseInt(color.substring(1,3), 16);
|
||||
var g = parseInt(color.substring(3,5), 16);
|
||||
var b = parseInt(color.substring(5,7), 16);
|
||||
|
||||
return "rgba(" + r + "," + g + "," + b + "," + alpha + ")";
|
||||
} else {
|
||||
return color;
|
||||
}
|
||||
}
|
||||
|
||||
function Chart(id, width, height, lines) {
|
||||
var canvas = document.getElementById(id);
|
||||
var ctx = canvas.getContext('2d');
|
||||
|
||||
// We'll let the canvas do all the tricksy math
|
||||
var xscale = canvas.width/width;
|
||||
var yscale = canvas.height/height;
|
||||
var nlines = lines.length;
|
||||
|
||||
function moveTo(x, y) {
|
||||
ctx.moveTo(Math.round(x * xscale), Math.round((height - y) * yscale));
|
||||
}
|
||||
function lineTo(x, y) {
|
||||
ctx.lineTo(Math.round(x * xscale), Math.round((height - y) * yscale));
|
||||
}
|
||||
|
||||
function draw(color, values) {
|
||||
var lasty = 0;
|
||||
|
||||
ctx.strokeStyle = color;
|
||||
ctx.lineWidth = 4;
|
||||
ctx.beginPath();
|
||||
moveTo(values[0][0], 0);
|
||||
for (i in values) {
|
||||
var x = values[i][0];
|
||||
var y = values[i][1];
|
||||
lineTo(x, lasty);
|
||||
lineTo(x, y);
|
||||
lasty = y;
|
||||
}
|
||||
lineTo(width, lasty);
|
||||
ctx.stroke();
|
||||
}
|
||||
|
||||
this.highlight = function(id, color) {
|
||||
var line = lines[id];
|
||||
if (! color) color = line[0];
|
||||
|
||||
draw(color, line[1]);
|
||||
}
|
||||
|
||||
for (id in lines) {
|
||||
var line = lines[id];
|
||||
|
||||
draw(line[0], line[1]);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
var thechart;
|
||||
|
||||
function plot(id, width, height, lines) {
|
||||
thechart = new Chart(id, width, height, lines);
|
||||
}
|
||||
|
||||
function getElementsByClass( searchClass, domNode, tagName) {
|
||||
if (domNode == null) domNode = document;
|
||||
if (tagName == null) tagName = '*';
|
||||
var el = new Array();
|
||||
var tags = domNode.getElementsByTagName(tagName);
|
||||
var tcl = " "+searchClass+" ";
|
||||
for(i=0,j=0; i<tags.length; i++) {
|
||||
var test = " " + tags[i].className + " ";
|
||||
if (test.indexOf(tcl) != -1)
|
||||
el[j++] = tags[i];
|
||||
}
|
||||
return el;
|
||||
}
|
||||
|
||||
function highlight(cls, color) {
|
||||
if (! color) color = "#ffffff";
|
||||
elements = getElementsByClass("t" + cls);
|
||||
for (i in elements) {
|
||||
e = elements[i];
|
||||
e.style.borderColor = e.style.backgroundColor;
|
||||
e.style.backgroundColor = color;
|
||||
}
|
||||
thechart.highlight(cls, color);
|
||||
}
|
||||
|
||||
function restore(cls) {
|
||||
elements = getElementsByClass("t" + cls);
|
||||
for (i in elements) {
|
||||
e = elements[i];
|
||||
e.style.backgroundColor = e.style.borderColor;
|
||||
}
|
||||
thechart.highlight(cls);
|
||||
}
|
||||
|
||||
|
||||
var state = 0;
|
||||
function cycle() {
|
||||
if (state == 0) {
|
||||
v = document.getElementById("scoreboard");
|
||||
i = document.getElementById("chart");
|
||||
} else {
|
||||
v = document.getElementById("chart");
|
||||
i = document.getElementById("scoreboard");
|
||||
}
|
||||
v.style.display = "block";
|
||||
i.style.display = "none";
|
||||
state = (state + 1) % 2;
|
||||
}
|
||||
Loading…
Reference in New Issue