Update WebCrypto.cs SecureChecksum.

GitHubProUser67 · GitHubProUser67 · commit 90de5fd440a5 · 2024-06-15T20:04:02.000+02:00
Update WebCrypto.cs SecureChecksum.

Double type ends up being faster, we also remove the additional casting which resulted in a performance loss.
diff --git a/BackendServices/CyberBackendLibrary/Crypto/WebCrypto.cs b/BackendServices/CyberBackendLibrary/Crypto/WebCrypto.cs
@@ -11,263 +11,71 @@ public static class WebCrypto
     {
         public static readonly byte[] AuthIV = new byte[] { 0x30, 0x57, 0xB5, 0x1F, 0x32, 0xD4, 0xAD, 0xBF, 0xAA, 0xAA, 0x21, 0x41, 0x6C, 0xDC, 0x5D, 0xF5 };
 
-        private static readonly float[] ChecksumFloatBox = new float[] {
-            58008202f,
-            283586167f,
-            691630987f,
-            0.0121423f,
-            24496404f,
-            100693.8f,
-            11111.00f,
-            33743066f,
-            11161060f,
-            22.609399f,
-            8.0000000f,
-            656079619f,
-            0.0001639f,
-            254526166f,
-            738776787f,
-            455288633f,
-            0.0000000f,
-            float.MinValue,
-            float.MaxValue,
-            9.9999999f,
-            -66916347f,
-            8.001010f,
-            24885909f,
-            0.0335716f,
-            345748357f,
-            44845496f,
-            217480376f,
-            13121294f,
-            158692601f,
-            32197227f,
-            564358.0f,
-            0.000000f,
-            25984833f,
-            float.MaxValue,
-            0.000000f,
-            306495034f,
-            0.0000000f,
-            -0.0000000f,
-            0.0000003f,
-            -685.0607f,
-            236381221f,
-            0.0000000f,
-            48180597f,
-            45155118f,
-            1976.2049f,
-            -19991440f,
-            -14114456f,
-            0.000004f,
-            0.0000000f,
-            45522309f,
-            2.000000f,
-            154946698f,
-            -1.0000009f,
-            63222279f,
-            -65.03404f,
-            3.0000000f,
-            -1.299990f,
-            0.000000f,
-            85.476051f,
-            48973531f,
-            37662912f,
-            -0.000000f,
-            -19991.000f,
-            307838413f,
-            904143232f,
-            -107104265f,
-            213395580f,
-            0.000000f,
-            0.0000000f,
-            18.33077f,
-            0.0000000f,
-            57067016f,
-            14917448f,
-            432.62677f,
-            99999999f,
-            0.000887f,
-            -389197792f,
-            0.0000000f,
-            52872964f,
-            0.8713466f,
-            363465965f,
-            999999990f,
-            -0.000000f,
-            49137600f,
-            73203757f,
-            0.000000f,
-            99984.100f,
-            -530440842f,
-            0.0000000f,
-            1.1807239f,
-            2584606.7f,
-            0.000000f,
-            0.000000f,
-            0.0000000f,
-            3383709.5f,
-            3.278632f,
-            0.000000f,
-            0.000000f,
-            455318494f,
-            -91443337f,
-            float.MaxValue,
-            778152399f,
-            0.0000000f,
-            234353870f,
-            0.0009164f,
-            1119.0000f,
-            150841736f,
-            9.0880000f,
-            155608066f,
-            1.5884156f,
-            113359872f,
-            0.000000f,
-            float.MaxValue,
-            -0.0000000f,
-            99956886f,
-            99.000000f,
-            111.00000f,
-            337012321f,
-            12136144f,
-            4.783637f,
-            106917.5f,
-            6.6644000f,
-            806013785f,
-            16321673f,
-            14066396f,
-            35364254f,
-            38071700f,
-            -411691540f,
-            0.025415f,
-            31909135f,
-            13653414f,
-            9.1100000f,
-            574320387f,
-            -28599966f,
-            2.0403958f,
-            736205017f,
-            10.646077f,
-            0.0004768f,
-            12589274f,
-            92538261f,
-            0.6502635f,
-            -281029210f,
-            0.0000000f,
-            0.000000f,
-            27956324f,
-            129829580f,
-            0.0000000f,
-            81660997f,
-            534194995f,
-            192919466f,
-            367647210f,
-            0.55555555f,
-            -620646330f,
-            520537602f,
-            164146190f,
-            87026353f,
-            810672770f,
-            1.0000000f,
-            0.0007157f,
-            3.000000f,
-            10973.481f,
-            789490777f,
-            0.000000f,
-            0.0000122f,
-            0.0000027f,
-            -0.007104f,
-            0.000000f,
-            0.0000000f,
-            704.64929f,
-            13869565f,
-            -8.000000f,
-            42714203f,
-            18517149f,
-            0.000000f,
-            -44077661f,
-            0.000000f,
-            56232092f,
-            13171912f,
-            321896641f,
-            79.715774f,
-            116500676f,
-            33671630f,
-            113833607f,
-            0.000027f,
-            -0.000490f,
-            4926.680f,
-            249628960f,
-            24789044f,
-            779834022f,
-            -114004686f,
-            11813414f,
-            39849447f,
-            331297423f,
-            0.000000f,
-            298826107f,
-            4.4202899f,
-            -0.4316006f,
-            685650963f,
-            0.000000f,
-            114157306f,
-            -387315200f,
-            0.0000000f,
-            288964480f,
-            144.59900f,
-            0.099100f,
-            05614100f,
-            0.0000001f,
-            20511712f,
-            -58915550f,
-            19.84004f,
-            0.0000000f,
-            9.000000f,
-            0.000000f,
-            771425661f,
-            0.000000f,
-            1.0000000f,
-            1317.196f,
-            0.0000014f,
-            15941265f,
-            49330645f,
-            218309042f,
-            0.000000f,
-            55.40400f,
-            36322385f,
-            0.0030822f,
-            float.MaxValue,
-            0.000000f,
-            948228673f,
-            -0.000000f,
-            49617375f,
-            28899893f,
-            799385305f,
-            38902177f,
-            525543053f,
-            0.006318f,
-            32261.566f,
-            121926.03f,
-            749418696f,
-            147206035f,
-            92048209f,
-            268444598f,
-            20088921f,
-            float.MinValue,
-            20665186f,
-            0.0000000f,
-            26009441f,
-            141566736f,
-            0.0000966f,
-            -0.0000000f,
-            222.0000f,
-            -99178045f,
-            27448502f,
-            0.000000f,
-            -9984210f,
-            0.0000000f,
-            34751204f
+        private static readonly double[] ChecksumDoubleBox = new double[] {
+        2.7887184390393327E-68, -1.8618331480548654E+44, -4.3020517462112105E-88, 2.7690669394447383E-306,
+        -4.4732610650720826E+186, -1.4390889935876456E-122, 9.011151663372176E-162, 4.2908917155383753E-218,
+        -2.4128387770212816E-68, -2.302277439516697E+17, -1.42652914942737E+76, -5.8837740751567983E+133,
+        1.5920040750264217E+296, 1.0396241970410689E+80, -4.5251989463276728E-37, -99908801504.216187,
+        -9.6938069800013986E-234, 7154320198.8792391, 3.3350146220305454, 4.5992494633926639E+296,
+        0.00015538478019864411, -2.3770471563162649E-231, -3.7776792306925663E-257, -3.2751772927936956E-79,
+        2.9753036182759686E+19, -3.4108151155201765E-97, 1.8254489178010996E-150, -1.533309463713607E+223,
+        -3.3038829395282477E-163, -3.5867627522725082E-44, -8.0575990854406417E+228, -4.5693368234658098E+218,
+        1.5758545622916187E+250, -3.8469203628037247E+75, -7.7468478373878765E+283, 2.9070685939131584E-109,
+        6.3703271911431292E-267, 3221.4418522251376, 5.4205212587320372E+146, -8.0205306949294802E+33,
+        -9.4975431916177958E-136, 3.667794057662362E-115, 7.7199257831233639E-151, -2.1070369526203118E+101,
+        1.6411659940921769E-155, -3.6168969623686786E-163, 2.1579389902107392E-277, 4.874590773217776E-111,
+        4.0857360992391282E-165, 1.0606435456003952E+267, 5.7931290514683669E-152, -6.7290098482703866E+52,
+        1.2606024827897781E+296, -1.6704953006900546E-176, -3.0078722972120132E+48, 3.1447104851678525E+301,
+        1915.2152581197442, 3.3184196363573966E+181, 6.1149917535759973E-276, 5.4064678119532772E-23,
+        -1.0984738414178737E-88, 6.1990027968293353E-291, 3.4566479109573149E-196, -5.3509295815048191E-26,
+        1.6505428070349743E+277, -9.6811524958504798E+67, 1.1280023390074459E+149, -4.9292339788735822E-68,
+        2.2601210796010041E+178, 8.5226517645726473E+190, -1.0017171101609985E-279, -3.65646314408369E-50,
+        2.2970458601470527E+32, 1.0565926139826181E+120, -1.2064366402132023E-257, -2.9763571200300399E-212,
+        7.4113698535820762E+30, 4.8640419208754734E-102, 10521018956905.494, 2.4526076739600515E-218,
+        -1.5830022524963814E-73, 3.4336565057851734E+189, -2.3577655252445132E-156, -9.8917585013646492E-214,
+        1.0989790604300809E+275, -1.2587740892853646E+280, 9.4814881264904194E-182, -1.1571531521085438E+237,
+        1.229603368447179E+177, -2.604114864379276E+231, -9.2664762752613728E+19, 3.1108827462661377E+207,
+        -0.00097578440812214106, -1.6334311869848364E+64, 2.1522092663265792E-148, -9.703594347075139E-116,
+        -5.38618978004519E+153, 1.5183273612167631E-68, 1.488965790360276E+231, -1.9635140707561793E+263,
+        8.3909068205945064E-24, 9.0358877500255654E+296, -9.1999672792620295E+304, 3.5512093967849135E+264,
+        -2.8892650165544142E+105, 4.3108753206738937E-193, -1.8348272430681013E-43, 5.1858841474652699E-213,
+        -3.004636725533007E-243, 6.132335794645227E+296, -3.7468512147382775E-154, 7.6218053022237471E-96,
+        4.3743536049921071E-103, 5.9816034318820231E-216, 1.460199038405993E-91, 6.5876192666238764E+29,
+        -7.3794025156926594E+268, 5.7991955341983553E-13, -5.6634238293438093E+89, -5.8200791917381605E+113,
+        -9.382352775848059E+207, 2.861558467972407E-77, 2.4696625114917344E-110, 2.7557374555587394E-267,
+        -2.4824860795877484E+248, -2.3404664456505793E+142, 1.1936363470265948E-138, -5.1554094132155965E+218,
+        -2.1345621384067773E+95, 3.9095198281989856E-22, -2.5788222256938449E+115, 1.9099286980025499E-239,
+        5.5884812735780678E-97, -4.3532845559098668E-234, -1.2510799969917003E-181, 4.5603347604034982E+136,
+        4.7061203764035123E-83, 9.1737236235132167E-41, -2.613613939729813E-298, 1.9880402498870573E+83,
+        1.7345656478778084E+249, -3.0319077060207514E-105, -6.7629333338910013E+294, -1.6866269280513859E+99,
+        -3.3783315435921158E-248, -5.0835175037376279E+51, 2.2823484706956437E+223, -5.2350800373676555E-66,
+        2.1938940008469276E-254, 2.6638615147066538E+223, 2.4842709854584848E+182, -1.0299057921221703E-27,
+        3.0990818534379688E+185, 2.0262114067427639E-188, -5.4296554749002973E+66, 4.7675539353956493E+169,
+        1.3573132727962003E-118, -6.5274465463956772E-14, -4.5392607746338724E-127, 1.6102418832131022E-23,
+        -1.1847308830399821E+132, 1.2513568633577283E-16, -1.0228949260107244E+112, -8.9922531416247386E+192,
+        7.916548295980459E-222, 1.2312727320104881E+232, -1.6122158694745404E-18, -3.481233193000274E-90,
+        1.1167822845877998E-174, 3.0933218387919583E+155, 3.5277642137107372E+44, -2.9137622769215298E+290,
+        1.9957749835438084E+236, 6.1872472933038688E-164, 5.2600259335078834E+243, -1.4443859349276303E+148,
+        5.1467859055870169E+229, 7.7995527993037581E+130, -1.1114533180621355E-125, 2.6399665987764258E+231,
+        4.2784642805717917E+60, 5.4325889050482818E-24, 2.3471782221662184E-139, 1.5023114689184499E+139,
+        -7.739248628015553E-261, -1.2718020201744012E+243, -1.9381306484670001E+67, -4.6914660580129212E+70,
+        -1.1133219329239814E-265, 3.6846941503987795E+249, -2.0748351868579771E+204, 6.6937077510630353E+112,
+        -6.2048307225072857E-139, 3.176804470596129E-165, -2.7918709132760115E-30, -1.0492637299075539E+301,
+        -2.6913198235452055E+26, -2.9117223403452271E+233, -4.7027363008739307E-228, 1.8114587021063903E-271,
+        -1.3241417053933245E+48, 3.6325124729858898E+91, -6.2457791807094912E-141, -1.4491174268613238E+237,
+        9.8874123752594577E+120, -2.0319709324516646E+28, -1.5957803938054728E+152, 3.1874238863547971E+279,
+        -1.8250643090422224E-303, 5.9599696895418363E+64, -2.2787607401244759E-36, 1.5008922629428054E+65,
+        1.1505681598544734E+148, -1.3637263423245691E+49, -4.8856652999596355E-147, -2.9116196687899166E+205,
+        1.8874332547772457E+175, -6.5990215259187729E-33, 2.6264478209319808E+277, 1.5689005450286684E-299,
+        -6.1497353187898311E-262, 1.9581923365154108E+242, 3.8357464877695169E+219, -7.0508384785114966E+159,
+        6.0207319343426195E+116, 1.5765702742095276E+54, 4.9958914890061474E+286, -3.6781148546295676E-239,
+        -6.0586380916259018E-146, 1.0108359360144948E-84, 1.0745744993668423E-293, 9.2956759200531128E+287,
+        -4.7638929609005592E+115, 9.5054275587231182E-84, -1.8743692919210275E+266, -2.0903280235511906E-65,
+        2.6520969143313191E+44, 2.5068662790255933E-108, 7.4153606567030972E-173, 0.027621597514295559,
+        1.4414796379735879E-59, 8.9494241208820869E+230, -1.9129924797775677E+176, -3.8951193066001035E-157,
+        1.1346280594792284E-121, -2.316668663199865E-205, -1.5072932644663529E-226, -1.629331170675189E-133,
+        1.9851829729633109E-177, 9.7822255568416942E+240, 9.862710004113815E-199, -6.1538515262395028E+109,
+        6.7804585434686301E-67, -6.4119939251743156E-51, -5.3875889389093929E+155, 8.3674428579373504E+136
         };
 
         private static readonly byte[] ChecksumByteBox = new byte[] { 244, 255, 193, 198, 73,
@@ -409,19 +217,19 @@ public static class WebCrypto
         {
             byte currentByte = 0;
             int DataIndex = 0;
-            float tempFloat = (float)(initialValue & 0xFFFFFF | 0x3F000000);
+            double tempDouble = BitConverter.Int64BitsToDouble(!BitConverter.IsLittleEndian ? EndianTools.EndianUtils.EndianSwap(initialValue) : initialValue);
             byte[] CheckSumBytes = new byte[inputData.Length];
 
             Ionic.Crc.CRC32 crc = new();
 
             do
             {
-                currentByte = (byte)(inputData[DataIndex] ^ BitConverter.SingleToInt32Bits(!BitConverter.IsLittleEndian ? EndianTools.EndianUtils.EndianSwap(tempFloat) : tempFloat));
+                currentByte = (byte)(inputData[DataIndex] ^ BitConverter.DoubleToInt64Bits(!BitConverter.IsLittleEndian ? EndianTools.EndianUtils.EndianSwap(tempDouble) : tempDouble));
                 CheckSumBytes[DataIndex] = currentByte;
-                tempFloat = (ChecksumFloatBox[currentByte]) / 
-                            (float)(((uint)(ChecksumByteBox[(uint)tempFloat & 0xFF]) << 0x10) |
-                                    ((uint)(ChecksumByteBox[(uint)tempFloat >> 8 & 0xFF]) << 8) |
-                                    (uint)(ChecksumByteBox[(uint)tempFloat >> 0x10 & 0xFF]) | 0x3F000000);
+                tempDouble = ChecksumDoubleBox[currentByte] /
+                                    (((uint)ChecksumByteBox[(uint)tempDouble & 0xFF] << 0x10) |
+                                    ((uint)ChecksumByteBox[(uint)tempDouble >> 8 & 0xFF] << 8) |
+                                    ChecksumByteBox[(uint)tempDouble >> 0x10 & 0xFF] | 0x3F000000);
                 DataIndex++;
             } while (DataIndex != inputData.Length);
 
