Constant crypto::sha2::K64

pub const K64: [u64; 80] = [4794697086780616226, 8158064640168781261, 13096744586834688815,
 16840607885511220156, 4131703408338449720, 6480981068601479193,
 10538285296894168987, 12329834152419229976, 15566598209576043074,
 1334009975649890238, 2608012711638119052, 6128411473006802146,
 8268148722764581231, 9286055187155687089, 11230858885718282805,
 13951009754708518548, 16472876342353939154, 17275323862435702243,
 1135362057144423861, 2597628984639134821, 3308224258029322869,
 5365058923640841347, 6679025012923562964, 8573033837759648693,
 10970295158949994411, 12119686244451234320, 12683024718118986047,
 13788192230050041572, 14330467153632333762, 15395433587784984357,
 489312712824947311, 1452737877330783856, 2861767655752347644,
 3322285676063803686, 5560940570517711597, 5996557281743188959,
 7280758554555802590, 8532644243296465576, 9350256976987008742,
 10552545826968843579, 11727347734174303076, 12113106623233404929,
 14000437183269869457, 14369950271660146224, 15101387698204529176,
 15463397548674623760, 17586052441742319658, 1182934255886127544,
 1847814050463011016, 2177327727835720531, 2830643537854262169,
 3796741975233480872, 4115178125766777443, 5681478168544905931,
 6601373596472566643, 7507060721942968483, 8399075790359081724,
 8693463985226723168, 9568029438360202098, 10144078919501101548,
 10430055236837252648, 11840083180663258601, 13761210420658862357,
 14299343276471374635, 14566680578165727644, 15097957966210449927,
 16922976911328602910, 17689382322260857208, 500013540394364858,
 748580250866718886, 1242879168328830382, 1977374033974150939,
 2944078676154940804, 3659926193048069267, 4368137639120453308,
 4836135668995329356, 5532061633213252278, 6448918945643986474,
 6902733635092675308, 7801388544844847127]

Constants necessary for SHA-512 family of digests.