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HackIt! 2018 Level 3
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var sudoku = $("#su input") | |
var s ="852931647473862159961547283318476925549328761726159834637294518194685372285713496" | |
// var s ="852913647473862159961547283728135964549726831316489725637294518194658372285371496" | |
// var s ="852913647473862159961547283318476925549328761726159834637294518194685372285731496" | |
for (var i = 0; i < sudoku.length; i++){ sudoku[i].value = s.charAt(i); } | |
$("video")[0].needs_reload = 1; | |
!function() { | |
var o = new Uint8Array([48, 130, 1, 34, 48, 13, 6, 9, 42, 134, 72, 134, 247, 13, 1, 1, 1, 5, 0, 3, 130, 1, 15, 0, 48, 130, 1, 10, 2, 130, 1, 1, 0, 208, 1, 68, 22, 224, 143, 173, 53, 62, 101, 191, 203, 235, 29, 195, 91, 109, 109, 246, 238, 118, 161, 209, 253, 86, 218, 195, 213, 72, 35, 212, 166, 128, 22, 98, 88, 234, 200, 205, 149, 124, 43, 174, 222, 55, 91, 52, 201, 139, 87, 91, 165, 64, 167, 212, 195, 173, 133, 10, 161, 57, 25, 6, 86, 171, 55, 182, 232, 165, 63, 110, 221, 5, 252, 105, 61, 222, 114, 154, 47, 196, 154, 31, 103, 140, 95, 240, 134, 133, 57, 154, 23, 176, 19, 168, 219, 165, 196, 254, 6, 234, 108, 104, 55, 243, 111, 9, 54, 8, 11, 194, 102, 63, 56, 153, 22, 162, 154, 32, 125, 199, 231, 176, 120, 184, 23, 62, 178, 40, 170, 108, 94, 106, 230, 57, 16, 40, 200, 112, 68, 217, 59, 233, 82, 170, 5, 143, 191, 188, 166, 204, 75, 141, 6, 48, 208, 113, 32, 148, 26, 1, 92, 143, 16, 106, 73, 6, 64, 219, 87, 206, 126, 4, 110, 115, 176, 110, 254, 171, 82, 93, 23, 42, 47, 122, 59, 28, 168, 118, 249, 53, 183, 174, 255, 30, 168, 117, 252, 145, 179, 213, 127, 152, 188, 243, 189, 26, 58, 26, 98, 27, 4, 19, 123, 102, 197, 121, 93, 26, 178, 241, 65, 140, 178, 64, 220, 59, 31, 44, 118, 242, 161, 210, 89, 176, 190, 36, 87, 166, 147, 21, 33, 187, 46, 94, 67, 27, 38, 217, 9, 190, 234, 83, 102, 65, 181, 2, 3, 1, 0, 1]) | |
, t = $("video")[0]; | |
t.needs_reload = !1, | |
t.addEventListener("encrypted", function(e) { | |
var n = t.mediaKeys.createSession(); | |
n.addEventListener("message", function(t) { | |
var r, a, i; | |
window.crypto.subtle.generateKey({ | |
name: "AES-GCM", | |
length: 256 | |
}, !0, ["encrypt", "decrypt"]).then(function(e) { | |
return r = e, | |
window.crypto.subtle.importKey("spki", o, { | |
name: "RSA-OAEP", | |
hash: { | |
name: "SHA-256" | |
} | |
}, !1, ["wrapKey"]) | |
}).then(function(e) { | |
return window.crypto.subtle.wrapKey("raw", r, e, { | |
name: "RSA-OAEP" | |
}) | |
}).then(function(e) { | |
a = e; | |
var n = (new TextEncoder).encode(JSON.stringify({ | |
m: btoa(String.fromCharCode.apply(null, new Uint8Array(t.message))), | |
s: btoa($("#su input").map(function() { | |
return this.value | |
}).get().join("")) | |
})); | |
return i = window.crypto.getRandomValues(new Uint8Array(12)), | |
window.crypto.subtle.encrypt({ | |
name: "AES-GCM", | |
iv: i, | |
tagLength: 128 | |
}, r, n) | |
}).then(function(e) { | |
var n = new Uint8Array(a.byteLength + i.byteLength + e.byteLength); | |
return n.set(new Uint8Array(a), 0), | |
n.set(i, a.byteLength), | |
n.set(new Uint8Array(e), a.byteLength + i.byteLength), | |
$.post({ | |
url: "license", | |
data: n, | |
processData: !1, | |
dataType: "binary", | |
responseType: "arraybuffer", | |
contentType: "application/x-drm", | |
headers: { | |
"X-CSRF": csrf_token | |
} | |
}) | |
}).then(function(e) { | |
var n = (e = new Uint8Array(e)).slice(0, 12); | |
return window.crypto.subtle.decrypt({ | |
name: "AES-GCM", | |
iv: n, | |
tagLength: 128 | |
}, r, e.slice(12)) | |
}).then(function(e) { | |
return t.target.update(e) | |
}) | |
}, !1), | |
n.generateRequest(event.initDataType, event.initData) | |
}, !1), | |
t.addEventListener("play", function(e) { | |
t.needs_reload && (t.needs_reload = !1, | |
t.reloading = !0, | |
t.load()) | |
}, !1), | |
t.addEventListener("canplay", function(e) { | |
t.reloading && (t.play(), | |
t.reloading = !1) | |
}, !1), | |
$("#su input").change(function() { | |
t.pause(), | |
t.needs_reload = !0 | |
}), | |
navigator.requestMediaKeySystemAccess("org.w3.clearkey", [{ | |
initDataTypes: ["webm"], | |
videoCapabilities: [{ | |
contentType: 'video/webm; codecs="vp9"' | |
}] | |
}]).then(function(e) { | |
return e.createMediaKeys() | |
}).then(function(e) { | |
return t.setMediaKeys(e) | |
}) | |
}(); | |
$("video")[0].play() |
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