pyethash-0.1.27/0000755000076500000240000000000012562316162013654 5ustar heikostaff00000000000000pyethash-0.1.27/PKG-INFO0000644000076500000240000000055612562316162014757 0ustar heikostaff00000000000000Metadata-Version: 1.1 Name: pyethash Version: 0.1.27 Summary: Python wrappers for ethash, the ethereum proof of workhashing function Home-page: https://github.com/ethereum/ethash Author: Matthew Wampler-Doty Author-email: matthew.wampler.doty@gmail.com License: MIT Download-URL: https://github.com/ethereum/ethash/tarball/v23 Description: UNKNOWN Platform: UNKNOWN pyethash-0.1.27/setup.py0000755000076500000240000000245412562316133015374 0ustar heikostaff00000000000000#!/usr/bin/env python import os from distutils.core import setup, Extension sources = [ 'src/python/core.c', 'src/libethash/io.c', 'src/libethash/internal.c', 'src/libethash/sha3.c'] if os.name == 'nt': sources += [ 'src/libethash/util_win32.c', 'src/libethash/io_win32.c', 'src/libethash/mmap_win32.c', ] else: sources += [ 'src/libethash/io_posix.c' ] depends = [ 'src/libethash/ethash.h', 'src/libethash/compiler.h', 'src/libethash/data_sizes.h', 'src/libethash/endian.h', 'src/libethash/ethash.h', 'src/libethash/io.h', 'src/libethash/fnv.h', 'src/libethash/internal.h', 'src/libethash/sha3.h', 'src/libethash/util.h', ] pyethash = Extension('pyethash', sources=sources, depends=depends, extra_compile_args=["-Isrc/", "-std=gnu99", "-Wall"]) setup( name='pyethash', author="Matthew Wampler-Doty", author_email="matthew.wampler.doty@gmail.com", license='MIT', version='0.1.27', url='https://github.com/ethereum/ethash', download_url='https://github.com/ethereum/ethash/tarball/v23', description=('Python wrappers for ethash, the ethereum proof of work' 'hashing function'), ext_modules=[pyethash], ) pyethash-0.1.27/src/0000755000076500000240000000000012562316162014443 5ustar heikostaff00000000000000pyethash-0.1.27/src/libethash/0000755000076500000240000000000012562316162016406 5ustar heikostaff00000000000000pyethash-0.1.27/src/libethash/compiler.h0000644000076500000240000000175612507032134020373 0ustar heikostaff00000000000000/* This file is part of cpp-ethereum. cpp-ethereum is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. cpp-ethereum is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with cpp-ethereum. If not, see . */ /** @file compiler.h * @date 2014 */ #pragma once // Visual Studio doesn't support the inline keyword in C mode #if defined(_MSC_VER) && !defined(__cplusplus) #define inline __inline #endif // pretend restrict is a standard keyword #if defined(_MSC_VER) #define restrict __restrict #else #define restrict __restrict__ #endif pyethash-0.1.27/src/libethash/data_sizes.h0000644000076500000240000015177612513427337020731 0ustar heikostaff00000000000000/* This file is part of cpp-ethereum. cpp-ethereum is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software FoundationUUU,either version 3 of the LicenseUUU,or (at your option) any later version. cpp-ethereum is distributed in the hope that it will be usefulU, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with cpp-ethereum. If notUUU,see . */ /** @file data_sizes.h * @author Matthew Wampler-Doty * @date 2015 */ #pragma once #include #include "compiler.h" #ifdef __cplusplus extern "C" { #endif #include // 2048 Epochs (~20 years) worth of tabulated DAG sizes // Generated with the following Mathematica Code: // GetCacheSizes[n_] := Module[{ // CacheSizeBytesInit = 2^24, // CacheGrowth = 2^17, // HashBytes = 64, // j = 0}, // Reap[ // While[j < n, // Module[{i = // Floor[(CacheSizeBytesInit + CacheGrowth * j) / HashBytes]}, // While[! PrimeQ[i], i--]; // Sow[i*HashBytes]; j++]]]][[2]][[1]] static const uint64_t dag_sizes[2048] = { 1073739904U, 1082130304U, 1090514816U, 1098906752U, 1107293056U, 1115684224U, 1124070016U, 1132461952U, 1140849536U, 1149232768U, 1157627776U, 1166013824U, 1174404736U, 1182786944U, 1191180416U, 1199568512U, 1207958912U, 1216345216U, 1224732032U, 1233124736U, 1241513344U, 1249902464U, 1258290304U, 1266673792U, 1275067264U, 1283453312U, 1291844992U, 1300234112U, 1308619904U, 1317010048U, 1325397376U, 1333787776U, 1342176128U, 1350561664U, 1358954368U, 1367339392U, 1375731584U, 1384118144U, 1392507008U, 1400897408U, 1409284736U, 1417673344U, 1426062464U, 1434451072U, 1442839168U, 1451229056U, 1459615616U, 1468006016U, 1476394112U, 1484782976U, 1493171584U, 1501559168U, 1509948032U, 1518337664U, 1526726528U, 1535114624U, 1543503488U, 1551892096U, 1560278656U, 1568669056U, 1577056384U, 1585446272U, 1593831296U, 1602219392U, 1610610304U, 1619000192U, 1627386752U, 1635773824U, 1644164224U, 1652555648U, 1660943488U, 1669332608U, 1677721216U, 1686109312U, 1694497664U, 1702886272U, 1711274624U, 1719661184U, 1728047744U, 1736434816U, 1744829056U, 1753218944U, 1761606272U, 1769995904U, 1778382464U, 1786772864U, 1795157888U, 1803550592U, 1811937664U, 1820327552U, 1828711552U, 1837102976U, 1845488768U, 1853879936U, 1862269312U, 1870656896U, 1879048064U, 1887431552U, 1895825024U, 1904212096U, 1912601216U, 1920988544U, 1929379456U, 1937765504U, 1946156672U, 1954543232U, 1962932096U, 1971321728U, 1979707264U, 1988093056U, 1996487552U, 2004874624U, 2013262208U, 2021653888U, 2030039936U, 2038430848U, 2046819968U, 2055208576U, 2063596672U, 2071981952U, 2080373632U, 2088762752U, 2097149056U, 2105539712U, 2113928576U, 2122315136U, 2130700672U, 2139092608U, 2147483264U, 2155872128U, 2164257664U, 2172642176U, 2181035392U, 2189426048U, 2197814912U, 2206203008U, 2214587264U, 2222979712U, 2231367808U, 2239758208U, 2248145024U, 2256527744U, 2264922752U, 2273312128U, 2281701248U, 2290086272U, 2298476672U, 2306867072U, 2315251072U, 2323639168U, 2332032128U, 2340420224U, 2348808064U, 2357196416U, 2365580416U, 2373966976U, 2382363008U, 2390748544U, 2399139968U, 2407530368U, 2415918976U, 2424307328U, 2432695424U, 2441084288U, 2449472384U, 2457861248U, 2466247808U, 2474637184U, 2483026816U, 2491414144U, 2499803776U, 2508191872U, 2516582272U, 2524970368U, 2533359232U, 2541743488U, 2550134144U, 2558525056U, 2566913408U, 2575301504U, 2583686528U, 2592073856U, 2600467328U, 2608856192U, 2617240448U, 2625631616U, 2634022016U, 2642407552U, 2650796416U, 2659188352U, 2667574912U, 2675965312U, 2684352896U, 2692738688U, 2701130624U, 2709518464U, 2717907328U, 2726293376U, 2734685056U, 2743073152U, 2751462016U, 2759851648U, 2768232832U, 2776625536U, 2785017728U, 2793401984U, 2801794432U, 2810182016U, 2818571648U, 2826959488U, 2835349376U, 2843734144U, 2852121472U, 2860514432U, 2868900992U, 2877286784U, 2885676928U, 2894069632U, 2902451584U, 2910843008U, 2919234688U, 2927622784U, 2936011648U, 2944400768U, 2952789376U, 2961177728U, 2969565568U, 2977951616U, 2986338944U, 2994731392U, 3003120256U, 3011508352U, 3019895936U, 3028287104U, 3036675968U, 3045063808U, 3053452928U, 3061837696U, 3070228352U, 3078615424U, 3087003776U, 3095394944U, 3103782272U, 3112173184U, 3120562048U, 3128944768U, 3137339264U, 3145725056U, 3154109312U, 3162505088U, 3170893184U, 3179280256U, 3187669376U, 3196056704U, 3204445568U, 3212836736U, 3221224064U, 3229612928U, 3238002304U, 3246391168U, 3254778496U, 3263165824U, 3271556224U, 3279944576U, 3288332416U, 3296719232U, 3305110912U, 3313500032U, 3321887104U, 3330273152U, 3338658944U, 3347053184U, 3355440512U, 3363827072U, 3372220288U, 3380608384U, 3388997504U, 3397384576U, 3405774208U, 3414163072U, 3422551936U, 3430937984U, 3439328384U, 3447714176U, 3456104576U, 3464493952U, 3472883584U, 3481268864U, 3489655168U, 3498048896U, 3506434432U, 3514826368U, 3523213952U, 3531603584U, 3539987072U, 3548380288U, 3556763264U, 3565157248U, 3573545344U, 3581934464U, 3590324096U, 3598712704U, 3607098752U, 3615488384U, 3623877248U, 3632265856U, 3640646528U, 3649043584U, 3657430144U, 3665821568U, 3674207872U, 3682597504U, 3690984832U, 3699367808U, 3707764352U, 3716152448U, 3724541056U, 3732925568U, 3741318016U, 3749706368U, 3758091136U, 3766481536U, 3774872704U, 3783260032U, 3791650432U, 3800036224U, 3808427648U, 3816815488U, 3825204608U, 3833592704U, 3841981568U, 3850370432U, 3858755968U, 3867147904U, 3875536256U, 3883920512U, 3892313728U, 3900702592U, 3909087872U, 3917478784U, 3925868416U, 3934256512U, 3942645376U, 3951032192U, 3959422336U, 3967809152U, 3976200064U, 3984588416U, 3992974976U, 4001363584U, 4009751168U, 4018141312U, 4026530432U, 4034911616U, 4043308928U, 4051695488U, 4060084352U, 4068472448U, 4076862848U, 4085249408U, 4093640576U, 4102028416U, 4110413696U, 4118805632U, 4127194496U, 4135583104U, 4143971968U, 4152360832U, 4160746112U, 4169135744U, 4177525888U, 4185912704U, 4194303616U, 4202691968U, 4211076736U, 4219463552U, 4227855488U, 4236246656U, 4244633728U, 4253022848U, 4261412224U, 4269799808U, 4278184832U, 4286578048U, 4294962304U, 4303349632U, 4311743104U, 4320130432U, 4328521088U, 4336909184U, 4345295488U, 4353687424U, 4362073472U, 4370458496U, 4378852736U, 4387238528U, 4395630208U, 4404019072U, 4412407424U, 4420790656U, 4429182848U, 4437571456U, 4445962112U, 4454344064U, 4462738048U, 4471119232U, 4479516544U, 4487904128U, 4496289664U, 4504682368U, 4513068416U, 4521459584U, 4529846144U, 4538232704U, 4546619776U, 4555010176U, 4563402112U, 4571790208U, 4580174464U, 4588567936U, 4596957056U, 4605344896U, 4613734016U, 4622119808U, 4630511488U, 4638898816U, 4647287936U, 4655675264U, 4664065664U, 4672451968U, 4680842624U, 4689231488U, 4697620352U, 4706007424U, 4714397056U, 4722786176U, 4731173248U, 4739562368U, 4747951744U, 4756340608U, 4764727936U, 4773114496U, 4781504384U, 4789894784U, 4798283648U, 4806667648U, 4815059584U, 4823449472U, 4831835776U, 4840226176U, 4848612224U, 4857003392U, 4865391488U, 4873780096U, 4882169728U, 4890557312U, 4898946944U, 4907333248U, 4915722368U, 4924110976U, 4932499328U, 4940889728U, 4949276032U, 4957666432U, 4966054784U, 4974438016U, 4982831488U, 4991221376U, 4999607168U, 5007998848U, 5016386432U, 5024763776U, 5033164672U, 5041544576U, 5049941888U, 5058329728U, 5066717056U, 5075107456U, 5083494272U, 5091883904U, 5100273536U, 5108662144U, 5117048192U, 5125436032U, 5133827456U, 5142215296U, 5150605184U, 5158993024U, 5167382144U, 5175769472U, 5184157568U, 5192543872U, 5200936064U, 5209324928U, 5217711232U, 5226102656U, 5234490496U, 5242877312U, 5251263872U, 5259654016U, 5268040832U, 5276434304U, 5284819328U, 5293209728U, 5301598592U, 5309986688U, 5318374784U, 5326764416U, 5335151488U, 5343542144U, 5351929472U, 5360319872U, 5368706944U, 5377096576U, 5385484928U, 5393871232U, 5402263424U, 5410650496U, 5419040384U, 5427426944U, 5435816576U, 5444205952U, 5452594816U, 5460981376U, 5469367936U, 5477760896U, 5486148736U, 5494536832U, 5502925952U, 5511315328U, 5519703424U, 5528089984U, 5536481152U, 5544869504U, 5553256064U, 5561645696U, 5570032768U, 5578423936U, 5586811264U, 5595193216U, 5603585408U, 5611972736U, 5620366208U, 5628750464U, 5637143936U, 5645528192U, 5653921408U, 5662310272U, 5670694784U, 5679082624U, 5687474048U, 5695864448U, 5704251008U, 5712641408U, 5721030272U, 5729416832U, 5737806208U, 5746194304U, 5754583936U, 5762969984U, 5771358592U, 5779748224U, 5788137856U, 5796527488U, 5804911232U, 5813300608U, 5821692544U, 5830082176U, 5838468992U, 5846855552U, 5855247488U, 5863636096U, 5872024448U, 5880411008U, 5888799872U, 5897186432U, 5905576832U, 5913966976U, 5922352768U, 5930744704U, 5939132288U, 5947522432U, 5955911296U, 5964299392U, 5972688256U, 5981074304U, 5989465472U, 5997851008U, 6006241408U, 6014627968U, 6023015552U, 6031408256U, 6039796096U, 6048185216U, 6056574848U, 6064963456U, 6073351808U, 6081736064U, 6090128768U, 6098517632U, 6106906496U, 6115289216U, 6123680896U, 6132070016U, 6140459648U, 6148849024U, 6157237376U, 6165624704U, 6174009728U, 6182403712U, 6190792064U, 6199176064U, 6207569792U, 6215952256U, 6224345216U, 6232732544U, 6241124224U, 6249510272U, 6257899136U, 6266287744U, 6274676864U, 6283065728U, 6291454336U, 6299843456U, 6308232064U, 6316620928U, 6325006208U, 6333395584U, 6341784704U, 6350174848U, 6358562176U, 6366951296U, 6375337856U, 6383729536U, 6392119168U, 6400504192U, 6408895616U, 6417283456U, 6425673344U, 6434059136U, 6442444672U, 6450837376U, 6459223424U, 6467613056U, 6476004224U, 6484393088U, 6492781952U, 6501170048U, 6509555072U, 6517947008U, 6526336384U, 6534725504U, 6543112832U, 6551500672U, 6559888768U, 6568278656U, 6576662912U, 6585055616U, 6593443456U, 6601834112U, 6610219648U, 6618610304U, 6626999168U, 6635385472U, 6643777408U, 6652164224U, 6660552832U, 6668941952U, 6677330048U, 6685719424U, 6694107776U, 6702493568U, 6710882176U, 6719274112U, 6727662976U, 6736052096U, 6744437632U, 6752825984U, 6761213824U, 6769604224U, 6777993856U, 6786383488U, 6794770816U, 6803158144U, 6811549312U, 6819937664U, 6828326528U, 6836706176U, 6845101696U, 6853491328U, 6861880448U, 6870269312U, 6878655104U, 6887046272U, 6895433344U, 6903822208U, 6912212864U, 6920596864U, 6928988288U, 6937377152U, 6945764992U, 6954149248U, 6962544256U, 6970928768U, 6979317376U, 6987709312U, 6996093824U, 7004487296U, 7012875392U, 7021258624U, 7029652352U, 7038038912U, 7046427776U, 7054818944U, 7063207808U, 7071595136U, 7079980928U, 7088372608U, 7096759424U, 7105149824U, 7113536896U, 7121928064U, 7130315392U, 7138699648U, 7147092352U, 7155479168U, 7163865728U, 7172249984U, 7180648064U, 7189036672U, 7197424768U, 7205810816U, 7214196608U, 7222589824U, 7230975104U, 7239367552U, 7247755904U, 7256145536U, 7264533376U, 7272921472U, 7281308032U, 7289694848U, 7298088832U, 7306471808U, 7314864512U, 7323253888U, 7331643008U, 7340029568U, 7348419712U, 7356808832U, 7365196672U, 7373585792U, 7381973888U, 7390362752U, 7398750592U, 7407138944U, 7415528576U, 7423915648U, 7432302208U, 7440690304U, 7449080192U, 7457472128U, 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17783848832U, 17792236928U, 17800625536U, 17809012352U, 17817402752U, 17825785984U, 17834178944U, 17842563968U, 17850955648U, 17859344512U, 17867732864U, 17876119424U, 17884511872U, 17892900224U, 17901287296U, 17909677696U, 17918058112U, 17926451072U, 17934843776U, 17943230848U, 17951609216U, 17960008576U, 17968397696U, 17976784256U, 17985175424U, 17993564032U, 18001952128U, 18010339712U, 18018728576U, 18027116672U, 18035503232U, 18043894144U, 18052283264U, 18060672128U, 18069056384U, 18077449856U, 18085837184U, 18094225792U, 18102613376U, 18111004544U, 18119388544U, 18127781248U, 18136170368U, 18144558976U, 18152947328U, 18161336192U, 18169724288U, 18178108544U, 18186498944U, 18194886784U, 18203275648U, 18211666048U, 18220048768U, 18228444544U, 18236833408U, 18245220736U }; // Generated with the following Mathematica Code: // GetCacheSizes[n_] := Module[{ // DataSetSizeBytesInit = 2^30, // MixBytes = 128, // DataSetGrowth = 2^23, // HashBytes = 64, // CacheMultiplier = 1024, // j = 0}, // Reap[ // While[j < n, // Module[{i = Floor[(DataSetSizeBytesInit + DataSetGrowth * j) / (CacheMultiplier * HashBytes)]}, // While[! PrimeQ[i], i--]; // Sow[i*HashBytes]; j++]]]][[2]][[1]] const uint64_t cache_sizes[2048] = { 16776896U, 16907456U, 17039296U, 17170112U, 17301056U, 17432512U, 17563072U, 17693888U, 17824192U, 17955904U, 18087488U, 18218176U, 18349504U, 18481088U, 18611392U, 18742336U, 18874304U, 19004224U, 19135936U, 19267264U, 19398208U, 19529408U, 19660096U, 19791424U, 19922752U, 20053952U, 20184896U, 20315968U, 20446912U, 20576576U, 20709184U, 20840384U, 20971072U, 21102272U, 21233216U, 21364544U, 21494848U, 21626816U, 21757376U, 21887552U, 22019392U, 22151104U, 22281536U, 22412224U, 22543936U, 22675264U, 22806464U, 22935872U, 23068096U, 23198272U, 23330752U, 23459008U, 23592512U, 23723968U, 23854912U, 23986112U, 24116672U, 24247616U, 24378688U, 24509504U, 24640832U, 24772544U, 24903488U, 25034432U, 25165376U, 25296704U, 25427392U, 25558592U, 25690048U, 25820096U, 25951936U, 26081728U, 26214208U, 26345024U, 26476096U, 26606656U, 26737472U, 26869184U, 26998208U, 27131584U, 27262528U, 27393728U, 27523904U, 27655744U, 27786688U, 27917888U, 28049344U, 28179904U, 28311488U, 28441792U, 28573504U, 28700864U, 28835648U, 28966208U, 29096768U, 29228608U, 29359808U, 29490752U, 29621824U, 29752256U, 29882816U, 30014912U, 30144448U, 30273728U, 30406976U, 30538432U, 30670784U, 30799936U, 30932672U, 31063744U, 31195072U, 31325248U, 31456192U, 31588288U, 31719232U, 31850432U, 31981504U, 32110784U, 32243392U, 32372672U, 32505664U, 32636608U, 32767808U, 32897344U, 33029824U, 33160768U, 33289664U, 33423296U, 33554368U, 33683648U, 33816512U, 33947456U, 34076992U, 34208704U, 34340032U, 34471744U, 34600256U, 34734016U, 34864576U, 34993984U, 35127104U, 35258176U, 35386688U, 35518528U, 35650624U, 35782336U, 35910976U, 36044608U, 36175808U, 36305728U, 36436672U, 36568384U, 36699968U, 36830656U, 36961984U, 37093312U, 37223488U, 37355072U, 37486528U, 37617472U, 37747904U, 37879232U, 38009792U, 38141888U, 38272448U, 38403392U, 38535104U, 38660672U, 38795584U, 38925632U, 39059264U, 39190336U, 39320768U, 39452096U, 39581632U, 39713984U, 39844928U, 39974848U, 40107968U, 40238144U, 40367168U, 40500032U, 40631744U, 40762816U, 40894144U, 41023552U, 41155904U, 41286208U, 41418304U, 41547712U, 41680448U, 41811904U, 41942848U, 42073792U, 42204992U, 42334912U, 42467008U, 42597824U, 42729152U, 42860096U, 42991552U, 43122368U, 43253696U, 43382848U, 43515712U, 43646912U, 43777088U, 43907648U, 44039104U, 44170432U, 44302144U, 44433344U, 44564288U, 44694976U, 44825152U, 44956864U, 45088448U, 45219008U, 45350464U, 45481024U, 45612608U, 45744064U, 45874496U, 46006208U, 46136768U, 46267712U, 46399424U, 46529344U, 46660672U, 46791488U, 46923328U, 47053504U, 47185856U, 47316928U, 47447872U, 47579072U, 47710144U, 47839936U, 47971648U, 48103232U, 48234176U, 48365248U, 48496192U, 48627136U, 48757312U, 48889664U, 49020736U, 49149248U, 49283008U, 49413824U, 49545152U, 49675712U, 49807168U, 49938368U, 50069056U, 50200256U, 50331584U, 50462656U, 50593472U, 50724032U, 50853952U, 50986048U, 51117632U, 51248576U, 51379904U, 51510848U, 51641792U, 51773248U, 51903296U, 52035136U, 52164032U, 52297664U, 52427968U, 52557376U, 52690112U, 52821952U, 52952896U, 53081536U, 53213504U, 53344576U, 53475776U, 53608384U, 53738816U, 53870528U, 54000832U, 54131776U, 54263744U, 54394688U, 54525248U, 54655936U, 54787904U, 54918592U, 55049152U, 55181248U, 55312064U, 55442752U, 55574336U, 55705024U, 55836224U, 55967168U, 56097856U, 56228672U, 56358592U, 56490176U, 56621888U, 56753728U, 56884928U, 57015488U, 57146816U, 57278272U, 57409216U, 57540416U, 57671104U, 57802432U, 57933632U, 58064576U, 58195264U, 58326976U, 58457408U, 58588864U, 58720192U, 58849984U, 58981696U, 59113024U, 59243456U, 59375552U, 59506624U, 59637568U, 59768512U, 59897792U, 60030016U, 60161984U, 60293056U, 60423872U, 60554432U, 60683968U, 60817216U, 60948032U, 61079488U, 61209664U, 61341376U, 61471936U, 61602752U, 61733696U, 61865792U, 61996736U, 62127808U, 62259136U, 62389568U, 62520512U, 62651584U, 62781632U, 62910784U, 63045056U, 63176128U, 63307072U, 63438656U, 63569216U, 63700928U, 63831616U, 63960896U, 64093888U, 64225088U, 64355392U, 64486976U, 64617664U, 64748608U, 64879424U, 65009216U, 65142464U, 65273792U, 65402816U, 65535424U, 65666752U, 65797696U, 65927744U, 66060224U, 66191296U, 66321344U, 66453056U, 66584384U, 66715328U, 66846656U, 66977728U, 67108672U, 67239104U, 67370432U, 67501888U, 67631296U, 67763776U, 67895104U, 68026304U, 68157248U, 68287936U, 68419264U, 68548288U, 68681408U, 68811968U, 68942912U, 69074624U, 69205568U, 69337024U, 69467584U, 69599168U, 69729472U, 69861184U, 69989824U, 70122944U, 70253888U, 70385344U, 70515904U, 70647232U, 70778816U, 70907968U, 71040832U, 71171648U, 71303104U, 71432512U, 71564992U, 71695168U, 71826368U, 71958464U, 72089536U, 72219712U, 72350144U, 72482624U, 72613568U, 72744512U, 72875584U, 73006144U, 73138112U, 73268672U, 73400128U, 73530944U, 73662272U, 73793344U, 73924544U, 74055104U, 74185792U, 74316992U, 74448832U, 74579392U, 74710976U, 74841664U, 74972864U, 75102784U, 75233344U, 75364544U, 75497024U, 75627584U, 75759296U, 75890624U, 76021696U, 76152256U, 76283072U, 76414144U, 76545856U, 76676672U, 76806976U, 76937792U, 77070016U, 77200832U, 77331392U, 77462464U, 77593664U, 77725376U, 77856448U, 77987776U, 78118336U, 78249664U, 78380992U, 78511424U, 78642496U, 78773056U, 78905152U, 79033664U, 79166656U, 79297472U, 79429568U, 79560512U, 79690816U, 79822784U, 79953472U, 80084672U, 80214208U, 80346944U, 80477632U, 80608576U, 80740288U, 80870848U, 81002048U, 81133504U, 81264448U, 81395648U, 81525952U, 81657536U, 81786304U, 81919808U, 82050112U, 82181312U, 82311616U, 82443968U, 82573376U, 82705984U, 82835776U, 82967744U, 83096768U, 83230528U, 83359552U, 83491264U, 83622464U, 83753536U, 83886016U, 84015296U, 84147776U, 84277184U, 84409792U, 84540608U, 84672064U, 84803008U, 84934336U, 85065152U, 85193792U, 85326784U, 85458496U, 85589312U, 85721024U, 85851968U, 85982656U, 86112448U, 86244416U, 86370112U, 86506688U, 86637632U, 86769344U, 86900672U, 87031744U, 87162304U, 87293632U, 87424576U, 87555392U, 87687104U, 87816896U, 87947968U, 88079168U, 88211264U, 88341824U, 88473152U, 88603712U, 88735424U, 88862912U, 88996672U, 89128384U, 89259712U, 89390272U, 89521984U, 89652544U, 89783872U, 89914816U, 90045376U, 90177088U, 90307904U, 90438848U, 90569152U, 90700096U, 90832832U, 90963776U, 91093696U, 91223744U, 91356992U, 91486784U, 91618496U, 91749824U, 91880384U, 92012224U, 92143552U, 92273344U, 92405696U, 92536768U, 92666432U, 92798912U, 92926016U, 93060544U, 93192128U, 93322816U, 93453632U, 93583936U, 93715136U, 93845056U, 93977792U, 94109504U, 94240448U, 94371776U, 94501184U, 94632896U, 94764224U, 94895552U, 95023424U, 95158208U, 95287744U, 95420224U, 95550016U, 95681216U, 95811904U, 95943872U, 96075328U, 96203584U, 96337856U, 96468544U, 96599744U, 96731072U, 96860992U, 96992576U, 97124288U, 97254848U, 97385536U, 97517248U, 97647808U, 97779392U, 97910464U, 98041408U, 98172608U, 98303168U, 98434496U, 98565568U, 98696768U, 98827328U, 98958784U, 99089728U, 99220928U, 99352384U, 99482816U, 99614272U, 99745472U, 99876416U, 100007104U, 100138048U, 100267072U, 100401088U, 100529984U, 100662592U, 100791872U, 100925248U, 101056064U, 101187392U, 101317952U, 101449408U, 101580608U, 101711296U, 101841728U, 101973824U, 102104896U, 102235712U, 102366016U, 102498112U, 102628672U, 102760384U, 102890432U, 103021888U, 103153472U, 103284032U, 103415744U, 103545152U, 103677248U, 103808576U, 103939648U, 104070976U, 104201792U, 104332736U, 104462528U, 104594752U, 104725952U, 104854592U, 104988608U, 105118912U, 105247808U, 105381184U, 105511232U, 105643072U, 105774784U, 105903296U, 106037056U, 106167872U, 106298944U, 106429504U, 106561472U, 106691392U, 106822592U, 106954304U, 107085376U, 107216576U, 107346368U, 107478464U, 107609792U, 107739712U, 107872192U, 108003136U, 108131392U, 108265408U, 108396224U, 108527168U, 108657344U, 108789568U, 108920384U, 109049792U, 109182272U, 109312576U, 109444928U, 109572928U, 109706944U, 109837888U, 109969088U, 110099648U, 110230976U, 110362432U, 110492992U, 110624704U, 110755264U, 110886208U, 111017408U, 111148864U, 111279296U, 111410752U, 111541952U, 111673024U, 111803456U, 111933632U, 112066496U, 112196416U, 112328512U, 112457792U, 112590784U, 112715968U, 112852672U, 112983616U, 113114944U, 113244224U, 113376448U, 113505472U, 113639104U, 113770304U, 113901376U, 114031552U, 114163264U, 114294592U, 114425536U, 114556864U, 114687424U, 114818624U, 114948544U, 115080512U, 115212224U, 115343296U, 115473472U, 115605184U, 115736128U, 115867072U, 115997248U, 116128576U, 116260288U, 116391488U, 116522944U, 116652992U, 116784704U, 116915648U, 117046208U, 117178304U, 117308608U, 117440192U, 117569728U, 117701824U, 117833024U, 117964096U, 118094656U, 118225984U, 118357312U, 118489024U, 118617536U, 118749632U, 118882112U, 119012416U, 119144384U, 119275328U, 119406016U, 119537344U, 119668672U, 119798464U, 119928896U, 120061376U, 120192832U, 120321728U, 120454336U, 120584512U, 120716608U, 120848192U, 120979136U, 121109056U, 121241408U, 121372352U, 121502912U, 121634752U, 121764416U, 121895744U, 122027072U, 122157632U, 122289088U, 122421184U, 122550592U, 122682944U, 122813888U, 122945344U, 123075776U, 123207488U, 123338048U, 123468736U, 123600704U, 123731264U, 123861952U, 123993664U, 124124608U, 124256192U, 124386368U, 124518208U, 124649024U, 124778048U, 124911296U, 125041088U, 125173696U, 125303744U, 125432896U, 125566912U, 125696576U, 125829056U, 125958592U, 126090304U, 126221248U, 126352832U, 126483776U, 126615232U, 126746432U, 126876608U, 127008704U, 127139392U, 127270336U, 127401152U, 127532224U, 127663552U, 127794752U, 127925696U, 128055232U, 128188096U, 128319424U, 128449856U, 128581312U, 128712256U, 128843584U, 128973632U, 129103808U, 129236288U, 129365696U, 129498944U, 129629888U, 129760832U, 129892288U, 130023104U, 130154048U, 130283968U, 130416448U, 130547008U, 130678336U, 130807616U, 130939456U, 131071552U, 131202112U, 131331776U, 131464384U, 131594048U, 131727296U, 131858368U, 131987392U, 132120256U, 132250816U, 132382528U, 132513728U, 132644672U, 132774976U, 132905792U, 133038016U, 133168832U, 133299392U, 133429312U, 133562048U, 133692992U, 133823296U, 133954624U, 134086336U, 134217152U, 134348608U, 134479808U, 134607296U, 134741056U, 134872384U, 135002944U, 135134144U, 135265472U, 135396544U, 135527872U, 135659072U, 135787712U, 135921472U, 136052416U, 136182848U, 136313792U, 136444864U, 136576448U, 136707904U, 136837952U, 136970048U, 137099584U, 137232064U, 137363392U, 137494208U, 137625536U, 137755712U, 137887424U, 138018368U, 138149824U, 138280256U, 138411584U, 138539584U, 138672832U, 138804928U, 138936128U, 139066688U, 139196864U, 139328704U, 139460032U, 139590208U, 139721024U, 139852864U, 139984576U, 140115776U, 140245696U, 140376512U, 140508352U, 140640064U, 140769856U, 140902336U, 141032768U, 141162688U, 141294016U, 141426496U, 141556544U, 141687488U, 141819584U, 141949888U, 142080448U, 142212544U, 142342336U, 142474432U, 142606144U, 142736192U, 142868288U, 142997824U, 143129408U, 143258944U, 143392448U, 143523136U, 143653696U, 143785024U, 143916992U, 144045632U, 144177856U, 144309184U, 144440768U, 144570688U, 144701888U, 144832448U, 144965056U, 145096384U, 145227584U, 145358656U, 145489856U, 145620928U, 145751488U, 145883072U, 146011456U, 146144704U, 146275264U, 146407232U, 146538176U, 146668736U, 146800448U, 146931392U, 147062336U, 147193664U, 147324224U, 147455936U, 147586624U, 147717056U, 147848768U, 147979456U, 148110784U, 148242368U, 148373312U, 148503232U, 148635584U, 148766144U, 148897088U, 149028416U, 149159488U, 149290688U, 149420224U, 149551552U, 149683136U, 149814976U, 149943616U, 150076352U, 150208064U, 150338624U, 150470464U, 150600256U, 150732224U, 150862784U, 150993088U, 151125952U, 151254976U, 151388096U, 151519168U, 151649728U, 151778752U, 151911104U, 152042944U, 152174144U, 152304704U, 152435648U, 152567488U, 152698816U, 152828992U, 152960576U, 153091648U, 153222976U, 153353792U, 153484096U, 153616192U, 153747008U, 153878336U, 154008256U, 154139968U, 154270912U, 154402624U, 154533824U, 154663616U, 154795712U, 154926272U, 155057984U, 155188928U, 155319872U, 155450816U, 155580608U, 155712064U, 155843392U, 155971136U, 156106688U, 156237376U, 156367424U, 156499264U, 156630976U, 156761536U, 156892352U, 157024064U, 157155008U, 157284416U, 157415872U, 157545536U, 157677248U, 157810496U, 157938112U, 158071744U, 158203328U, 158334656U, 158464832U, 158596288U, 158727616U, 158858048U, 158988992U, 159121216U, 159252416U, 159381568U, 159513152U, 159645632U, 159776192U, 159906496U, 160038464U, 160169536U, 160300352U, 160430656U, 160563008U, 160693952U, 160822208U, 160956352U, 161086784U, 161217344U, 161349184U, 161480512U, 161611456U, 161742272U, 161873216U, 162002752U, 162135872U, 162266432U, 162397888U, 162529216U, 162660032U, 162790976U, 162922048U, 163052096U, 163184576U, 163314752U, 163446592U, 163577408U, 163707968U, 163839296U, 163969984U, 164100928U, 164233024U, 164364224U, 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284163136U, 284294848U, 284426176U, 284556992U, 284687296U, 284819264U, 284950208U, 285081536U }; #ifdef __cplusplus } #endif pyethash-0.1.27/src/libethash/endian.h0000644000076500000240000000466612562150222020022 0ustar heikostaff00000000000000#pragma once #include #include "compiler.h" #if defined(__MINGW32__) || defined(_WIN32) # define LITTLE_ENDIAN 1234 # define BYTE_ORDER LITTLE_ENDIAN #elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) # include #elif defined(__OpenBSD__) || defined(__SVR4) # include #elif defined(__APPLE__) # include #elif defined( BSD ) && (BSD >= 199103) # include #elif defined( __QNXNTO__ ) && defined( __LITTLEENDIAN__ ) # define LITTLE_ENDIAN 1234 # define BYTE_ORDER LITTLE_ENDIAN #elif defined( __QNXNTO__ ) && defined( __BIGENDIAN__ ) # define BIG_ENDIAN 1234 # define BYTE_ORDER BIG_ENDIAN #else # include #endif #if defined(_WIN32) #include #define ethash_swap_u32(input_) _byteswap_ulong(input_) #define ethash_swap_u64(input_) _byteswap_uint64(input_) #elif defined(__APPLE__) #include #define ethash_swap_u32(input_) OSSwapInt32(input_) #define ethash_swap_u64(input_) OSSwapInt64(input_) #elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) #define ethash_swap_u32(input_) bswap32(input_) #define ethash_swap_u64(input_) bswap64(input_) #elif defined(__OpenBSD__) #include #define ethash_swap_u32(input_) swap32(input_) #define ethash_swap_u64(input_) swap64(input_) #else // posix #include #define ethash_swap_u32(input_) __bswap_32(input_) #define ethash_swap_u64(input_) __bswap_64(input_) #endif #if LITTLE_ENDIAN == BYTE_ORDER #define fix_endian32(dst_ ,src_) dst_ = src_ #define fix_endian32_same(val_) #define fix_endian64(dst_, src_) dst_ = src_ #define fix_endian64_same(val_) #define fix_endian_arr32(arr_, size_) #define fix_endian_arr64(arr_, size_) #elif BIG_ENDIAN == BYTE_ORDER #define fix_endian32(dst_, src_) dst_ = ethash_swap_u32(src_) #define fix_endian32_same(val_) val_ = ethash_swap_u32(val_) #define fix_endian64(dst_, src_) dst_ = ethash_swap_u64(src_ #define fix_endian64_same(val_) val_ = ethash_swap_u64(val_) #define fix_endian_arr32(arr_, size_) \ do { \ for (unsigned i_ = 0; i_ < (size_), ++i_) { \ arr_[i_] = ethash_swap_u32(arr_[i_]); \ } \ while (0) #define fix_endian_arr64(arr_, size_) \ do { \ for (unsigned i_ = 0; i_ < (size_), ++i_) { \ arr_[i_] = ethash_swap_u64(arr_[i_]); \ } \ while (0) \ #else # error "endian not supported" #endif // BYTE_ORDER pyethash-0.1.27/src/libethash/ethash.h0000644000076500000240000001147612523111455020037 0ustar heikostaff00000000000000/* This file is part of ethash. ethash is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ethash. If not, see . */ /** @file ethash.h * @date 2015 */ #pragma once #include #include #include #include #include "compiler.h" #define ETHASH_REVISION 23 #define ETHASH_DATASET_BYTES_INIT 1073741824U // 2**30 #define ETHASH_DATASET_BYTES_GROWTH 8388608U // 2**23 #define ETHASH_CACHE_BYTES_INIT 1073741824U // 2**24 #define ETHASH_CACHE_BYTES_GROWTH 131072U // 2**17 #define ETHASH_EPOCH_LENGTH 30000U #define ETHASH_MIX_BYTES 128 #define ETHASH_HASH_BYTES 64 #define ETHASH_DATASET_PARENTS 256 #define ETHASH_CACHE_ROUNDS 3 #define ETHASH_ACCESSES 64 #define ETHASH_DAG_MAGIC_NUM_SIZE 8 #define ETHASH_DAG_MAGIC_NUM 0xFEE1DEADBADDCAFE #ifdef __cplusplus extern "C" { #endif /// Type of a seedhash/blockhash e.t.c. typedef struct ethash_h256 { uint8_t b[32]; } ethash_h256_t; // convenience macro to statically initialize an h256_t // usage: // ethash_h256_t a = ethash_h256_static_init(1, 2, 3, ... ) // have to provide all 32 values. If you don't provide all the rest // will simply be unitialized (not guranteed to be 0) #define ethash_h256_static_init(...) \ { {__VA_ARGS__} } struct ethash_light; typedef struct ethash_light* ethash_light_t; struct ethash_full; typedef struct ethash_full* ethash_full_t; typedef int(*ethash_callback_t)(unsigned); typedef struct ethash_return_value { ethash_h256_t result; ethash_h256_t mix_hash; bool success; } ethash_return_value_t; /** * Allocate and initialize a new ethash_light handler * * @param block_number The block number for which to create the handler * @return Newly allocated ethash_light handler or NULL in case of * ERRNOMEM or invalid parameters used for @ref ethash_compute_cache_nodes() */ ethash_light_t ethash_light_new(uint64_t block_number); /** * Frees a previously allocated ethash_light handler * @param light The light handler to free */ void ethash_light_delete(ethash_light_t light); /** * Calculate the light client data * * @param light The light client handler * @param header_hash The header hash to pack into the mix * @param nonce The nonce to pack into the mix * @return an object of ethash_return_value_t holding the return values */ ethash_return_value_t ethash_light_compute( ethash_light_t light, ethash_h256_t const header_hash, uint64_t nonce ); /** * Allocate and initialize a new ethash_full handler * * @param light The light handler containing the cache. * @param callback A callback function with signature of @ref ethash_callback_t * It accepts an unsigned with which a progress of DAG calculation * can be displayed. If all goes well the callback should return 0. * If a non-zero value is returned then DAG generation will stop. * Be advised. A progress value of 100 means that DAG creation is * almost complete and that this function will soon return succesfully. * It does not mean that the function has already had a succesfull return. * @return Newly allocated ethash_full handler or NULL in case of * ERRNOMEM or invalid parameters used for @ref ethash_compute_full_data() */ ethash_full_t ethash_full_new(ethash_light_t light, ethash_callback_t callback); /** * Frees a previously allocated ethash_full handler * @param full The light handler to free */ void ethash_full_delete(ethash_full_t full); /** * Calculate the full client data * * @param full The full client handler * @param header_hash The header hash to pack into the mix * @param nonce The nonce to pack into the mix * @return An object of ethash_return_value to hold the return value */ ethash_return_value_t ethash_full_compute( ethash_full_t full, ethash_h256_t const header_hash, uint64_t nonce ); /** * Get a pointer to the full DAG data */ void const* ethash_full_dag(ethash_full_t full); /** * Get the size of the DAG data */ uint64_t ethash_full_dag_size(ethash_full_t full); /** * Calculate the seedhash for a given block number */ ethash_h256_t ethash_get_seedhash(uint64_t block_number); #ifdef __cplusplus } #endif pyethash-0.1.27/src/libethash/fnv.h0000644000076500000240000000232212562150222017340 0ustar heikostaff00000000000000/* This file is part of cpp-ethereum. cpp-ethereum is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. cpp-ethereum is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with cpp-ethereum. If not, see . */ /** @file fnv.h * @author Matthew Wampler-Doty * @date 2015 */ #pragma once #include #include "compiler.h" #ifdef __cplusplus extern "C" { #endif #define FNV_PRIME 0x01000193 /* The FNV-1 spec multiplies the prime with the input one byte (octet) in turn. We instead multiply it with the full 32-bit input. This gives a different result compared to a canonical FNV-1 implementation. */ static inline uint32_t fnv_hash(uint32_t const x, uint32_t const y) { return x * FNV_PRIME ^ y; } #ifdef __cplusplus } #endif pyethash-0.1.27/src/libethash/internal.c0000644000076500000240000003236612562150222020371 0ustar heikostaff00000000000000/* This file is part of ethash. ethash is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with cpp-ethereum. If not, see . */ /** @file internal.c * @author Tim Hughes * @author Matthew Wampler-Doty * @date 2015 */ #include #include #include #include #include #include "mmap.h" #include "ethash.h" #include "fnv.h" #include "endian.h" #include "internal.h" #include "data_sizes.h" #include "io.h" #ifdef WITH_CRYPTOPP #include "sha3_cryptopp.h" #else #include "sha3.h" #endif // WITH_CRYPTOPP uint64_t ethash_get_datasize(uint64_t const block_number) { assert(block_number / ETHASH_EPOCH_LENGTH < 2048); return dag_sizes[block_number / ETHASH_EPOCH_LENGTH]; } uint64_t ethash_get_cachesize(uint64_t const block_number) { assert(block_number / ETHASH_EPOCH_LENGTH < 2048); return cache_sizes[block_number / ETHASH_EPOCH_LENGTH]; } // Follows Sergio's "STRICT MEMORY HARD HASHING FUNCTIONS" (2014) // https://bitslog.files.wordpress.com/2013/12/memohash-v0-3.pdf // SeqMemoHash(s, R, N) bool static ethash_compute_cache_nodes( node* const nodes, uint64_t cache_size, ethash_h256_t const* seed ) { if (cache_size % sizeof(node) != 0) { return false; } uint32_t const num_nodes = (uint32_t) (cache_size / sizeof(node)); SHA3_512(nodes[0].bytes, (uint8_t*)seed, 32); for (uint32_t i = 1; i != num_nodes; ++i) { SHA3_512(nodes[i].bytes, nodes[i - 1].bytes, 64); } for (uint32_t j = 0; j != ETHASH_CACHE_ROUNDS; j++) { for (uint32_t i = 0; i != num_nodes; i++) { uint32_t const idx = nodes[i].words[0] % num_nodes; node data; data = nodes[(num_nodes - 1 + i) % num_nodes]; for (uint32_t w = 0; w != NODE_WORDS; ++w) { data.words[w] ^= nodes[idx].words[w]; } SHA3_512(nodes[i].bytes, data.bytes, sizeof(data)); } } // now perform endian conversion fix_endian_arr32(nodes->words, num_nodes * NODE_WORDS); return true; } void ethash_calculate_dag_item( node* const ret, uint32_t node_index, ethash_light_t const light ) { uint32_t num_parent_nodes = (uint32_t) (light->cache_size / sizeof(node)); node const* cache_nodes = (node const *) light->cache; node const* init = &cache_nodes[node_index % num_parent_nodes]; memcpy(ret, init, sizeof(node)); ret->words[0] ^= node_index; SHA3_512(ret->bytes, ret->bytes, sizeof(node)); #if defined(_M_X64) && ENABLE_SSE __m128i const fnv_prime = _mm_set1_epi32(FNV_PRIME); __m128i xmm0 = ret->xmm[0]; __m128i xmm1 = ret->xmm[1]; __m128i xmm2 = ret->xmm[2]; __m128i xmm3 = ret->xmm[3]; #endif for (uint32_t i = 0; i != ETHASH_DATASET_PARENTS; ++i) { uint32_t parent_index = fnv_hash(node_index ^ i, ret->words[i % NODE_WORDS]) % num_parent_nodes; node const *parent = &cache_nodes[parent_index]; #if defined(_M_X64) && ENABLE_SSE { xmm0 = _mm_mullo_epi32(xmm0, fnv_prime); xmm1 = _mm_mullo_epi32(xmm1, fnv_prime); xmm2 = _mm_mullo_epi32(xmm2, fnv_prime); xmm3 = _mm_mullo_epi32(xmm3, fnv_prime); xmm0 = _mm_xor_si128(xmm0, parent->xmm[0]); xmm1 = _mm_xor_si128(xmm1, parent->xmm[1]); xmm2 = _mm_xor_si128(xmm2, parent->xmm[2]); xmm3 = _mm_xor_si128(xmm3, parent->xmm[3]); // have to write to ret as values are used to compute index ret->xmm[0] = xmm0; ret->xmm[1] = xmm1; ret->xmm[2] = xmm2; ret->xmm[3] = xmm3; } #else { for (unsigned w = 0; w != NODE_WORDS; ++w) { ret->words[w] = fnv_hash(ret->words[w], parent->words[w]); } } #endif } SHA3_512(ret->bytes, ret->bytes, sizeof(node)); } bool ethash_compute_full_data( void* mem, uint64_t full_size, ethash_light_t const light, ethash_callback_t callback ) { if (full_size % (sizeof(uint32_t) * MIX_WORDS) != 0 || (full_size % sizeof(node)) != 0) { return false; } uint32_t const max_n = (uint32_t)(full_size / sizeof(node)); node* full_nodes = mem; double const progress_change = 1.0f / max_n; double progress = 0.0f; // now compute full nodes for (uint32_t n = 0; n != max_n; ++n) { if (callback && n % (max_n / 100) == 0 && callback((unsigned int)(ceil(progress * 100.0f))) != 0) { return false; } progress += progress_change; ethash_calculate_dag_item(&(full_nodes[n]), n, light); } return true; } static bool ethash_hash( ethash_return_value_t* ret, node const* full_nodes, ethash_light_t const light, uint64_t full_size, ethash_h256_t const header_hash, uint64_t const nonce ) { if (full_size % MIX_WORDS != 0) { return false; } // pack hash and nonce together into first 40 bytes of s_mix assert(sizeof(node) * 8 == 512); node s_mix[MIX_NODES + 1]; memcpy(s_mix[0].bytes, &header_hash, 32); fix_endian64(s_mix[0].double_words[4], nonce); // compute sha3-512 hash and replicate across mix SHA3_512(s_mix->bytes, s_mix->bytes, 40); fix_endian_arr32(s_mix[0].words, 16); node* const mix = s_mix + 1; for (uint32_t w = 0; w != MIX_WORDS; ++w) { mix->words[w] = s_mix[0].words[w % NODE_WORDS]; } unsigned const page_size = sizeof(uint32_t) * MIX_WORDS; unsigned const num_full_pages = (unsigned) (full_size / page_size); for (unsigned i = 0; i != ETHASH_ACCESSES; ++i) { uint32_t const index = fnv_hash(s_mix->words[0] ^ i, mix->words[i % MIX_WORDS]) % num_full_pages; for (unsigned n = 0; n != MIX_NODES; ++n) { node const* dag_node; if (full_nodes) { dag_node = &full_nodes[MIX_NODES * index + n]; } else { node tmp_node; ethash_calculate_dag_item(&tmp_node, index * MIX_NODES + n, light); dag_node = &tmp_node; } #if defined(_M_X64) && ENABLE_SSE { __m128i fnv_prime = _mm_set1_epi32(FNV_PRIME); __m128i xmm0 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[0]); __m128i xmm1 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[1]); __m128i xmm2 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[2]); __m128i xmm3 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[3]); mix[n].xmm[0] = _mm_xor_si128(xmm0, dag_node->xmm[0]); mix[n].xmm[1] = _mm_xor_si128(xmm1, dag_node->xmm[1]); mix[n].xmm[2] = _mm_xor_si128(xmm2, dag_node->xmm[2]); mix[n].xmm[3] = _mm_xor_si128(xmm3, dag_node->xmm[3]); } #else { for (unsigned w = 0; w != NODE_WORDS; ++w) { mix[n].words[w] = fnv_hash(mix[n].words[w], dag_node->words[w]); } } #endif } } // compress mix for (uint32_t w = 0; w != MIX_WORDS; w += 4) { uint32_t reduction = mix->words[w + 0]; reduction = reduction * FNV_PRIME ^ mix->words[w + 1]; reduction = reduction * FNV_PRIME ^ mix->words[w + 2]; reduction = reduction * FNV_PRIME ^ mix->words[w + 3]; mix->words[w / 4] = reduction; } fix_endian_arr32(mix->words, MIX_WORDS / 4); memcpy(&ret->mix_hash, mix->bytes, 32); // final Keccak hash SHA3_256(&ret->result, s_mix->bytes, 64 + 32); // Keccak-256(s + compressed_mix) return true; } void ethash_quick_hash( ethash_h256_t* return_hash, ethash_h256_t const* header_hash, uint64_t const nonce, ethash_h256_t const* mix_hash ) { uint8_t buf[64 + 32]; memcpy(buf, header_hash, 32); fix_endian64_same(nonce); memcpy(&(buf[32]), &nonce, 8); SHA3_512(buf, buf, 40); memcpy(&(buf[64]), mix_hash, 32); SHA3_256(return_hash, buf, 64 + 32); } ethash_h256_t ethash_get_seedhash(uint64_t block_number) { ethash_h256_t ret; ethash_h256_reset(&ret); uint64_t const epochs = block_number / ETHASH_EPOCH_LENGTH; for (uint32_t i = 0; i < epochs; ++i) SHA3_256(&ret, (uint8_t*)&ret, 32); return ret; } bool ethash_quick_check_difficulty( ethash_h256_t const* header_hash, uint64_t const nonce, ethash_h256_t const* mix_hash, ethash_h256_t const* boundary ) { ethash_h256_t return_hash; ethash_quick_hash(&return_hash, header_hash, nonce, mix_hash); return ethash_check_difficulty(&return_hash, boundary); } ethash_light_t ethash_light_new_internal(uint64_t cache_size, ethash_h256_t const* seed) { struct ethash_light *ret; ret = calloc(sizeof(*ret), 1); if (!ret) { return NULL; } ret->cache = malloc((size_t)cache_size); if (!ret->cache) { goto fail_free_light; } node* nodes = (node*)ret->cache; if (!ethash_compute_cache_nodes(nodes, cache_size, seed)) { goto fail_free_cache_mem; } ret->cache_size = cache_size; return ret; fail_free_cache_mem: free(ret->cache); fail_free_light: free(ret); return NULL; } ethash_light_t ethash_light_new(uint64_t block_number) { ethash_h256_t seedhash = ethash_get_seedhash(block_number); ethash_light_t ret; ret = ethash_light_new_internal(ethash_get_cachesize(block_number), &seedhash); ret->block_number = block_number; return ret; } void ethash_light_delete(ethash_light_t light) { if (light->cache) { free(light->cache); } free(light); } ethash_return_value_t ethash_light_compute_internal( ethash_light_t light, uint64_t full_size, ethash_h256_t const header_hash, uint64_t nonce ) { ethash_return_value_t ret; ret.success = true; if (!ethash_hash(&ret, NULL, light, full_size, header_hash, nonce)) { ret.success = false; } return ret; } ethash_return_value_t ethash_light_compute( ethash_light_t light, ethash_h256_t const header_hash, uint64_t nonce ) { uint64_t full_size = ethash_get_datasize(light->block_number); return ethash_light_compute_internal(light, full_size, header_hash, nonce); } static bool ethash_mmap(struct ethash_full* ret, FILE* f) { int fd; char* mmapped_data; errno = 0; ret->file = f; if ((fd = ethash_fileno(ret->file)) == -1) { return false; } mmapped_data= mmap( NULL, (size_t)ret->file_size + ETHASH_DAG_MAGIC_NUM_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 ); if (mmapped_data == MAP_FAILED) { return false; } ret->data = (node*)(mmapped_data + ETHASH_DAG_MAGIC_NUM_SIZE); return true; } ethash_full_t ethash_full_new_internal( char const* dirname, ethash_h256_t const seed_hash, uint64_t full_size, ethash_light_t const light, ethash_callback_t callback ) { struct ethash_full* ret; FILE *f = NULL; ret = calloc(sizeof(*ret), 1); if (!ret) { return NULL; } ret->file_size = (size_t)full_size; switch (ethash_io_prepare(dirname, seed_hash, &f, (size_t)full_size, false)) { case ETHASH_IO_FAIL: // ethash_io_prepare will do all ETHASH_CRITICAL() logging in fail case goto fail_free_full; case ETHASH_IO_MEMO_MATCH: if (!ethash_mmap(ret, f)) { ETHASH_CRITICAL("mmap failure()"); goto fail_close_file; } return ret; case ETHASH_IO_MEMO_SIZE_MISMATCH: // if a DAG of same filename but unexpected size is found, silently force new file creation if (ethash_io_prepare(dirname, seed_hash, &f, (size_t)full_size, true) != ETHASH_IO_MEMO_MISMATCH) { ETHASH_CRITICAL("Could not recreate DAG file after finding existing DAG with unexpected size."); goto fail_free_full; } // fallthrough to the mismatch case here, DO NOT go through match case ETHASH_IO_MEMO_MISMATCH: if (!ethash_mmap(ret, f)) { ETHASH_CRITICAL("mmap failure()"); goto fail_close_file; } break; } if (!ethash_compute_full_data(ret->data, full_size, light, callback)) { ETHASH_CRITICAL("Failure at computing DAG data."); goto fail_free_full_data; } // after the DAG has been filled then we finalize it by writting the magic number at the beginning if (fseek(f, 0, SEEK_SET) != 0) { ETHASH_CRITICAL("Could not seek to DAG file start to write magic number."); goto fail_free_full_data; } uint64_t const magic_num = ETHASH_DAG_MAGIC_NUM; if (fwrite(&magic_num, ETHASH_DAG_MAGIC_NUM_SIZE, 1, f) != 1) { ETHASH_CRITICAL("Could not write magic number to DAG's beginning."); goto fail_free_full_data; } if (fflush(f) != 0) {// make sure the magic number IS there ETHASH_CRITICAL("Could not flush memory mapped data to DAG file. Insufficient space?"); goto fail_free_full_data; } return ret; fail_free_full_data: // could check that munmap(..) == 0 but even if it did not can't really do anything here munmap(ret->data, (size_t)full_size); fail_close_file: fclose(ret->file); fail_free_full: free(ret); return NULL; } ethash_full_t ethash_full_new(ethash_light_t light, ethash_callback_t callback) { char strbuf[256]; if (!ethash_get_default_dirname(strbuf, 256)) { return NULL; } uint64_t full_size = ethash_get_datasize(light->block_number); ethash_h256_t seedhash = ethash_get_seedhash(light->block_number); return ethash_full_new_internal(strbuf, seedhash, full_size, light, callback); } void ethash_full_delete(ethash_full_t full) { // could check that munmap(..) == 0 but even if it did not can't really do anything here munmap(full->data, (size_t)full->file_size); if (full->file) { fclose(full->file); } free(full); } ethash_return_value_t ethash_full_compute( ethash_full_t full, ethash_h256_t const header_hash, uint64_t nonce ) { ethash_return_value_t ret; ret.success = true; if (!ethash_hash( &ret, (node const*)full->data, NULL, full->file_size, header_hash, nonce)) { ret.success = false; } return ret; } void const* ethash_full_dag(ethash_full_t full) { return full->data; } uint64_t ethash_full_dag_size(ethash_full_t full) { return full->file_size; } pyethash-0.1.27/src/libethash/internal.h0000644000076500000240000001222012562150222020361 0ustar heikostaff00000000000000#pragma once #include "compiler.h" #include "endian.h" #include "ethash.h" #include #define ENABLE_SSE 0 #if defined(_M_X64) && ENABLE_SSE #include #endif #ifdef __cplusplus extern "C" { #endif // compile time settings #define NODE_WORDS (64/4) #define MIX_WORDS (ETHASH_MIX_BYTES/4) #define MIX_NODES (MIX_WORDS / NODE_WORDS) #include typedef union node { uint8_t bytes[NODE_WORDS * 4]; uint32_t words[NODE_WORDS]; uint64_t double_words[NODE_WORDS / 2]; #if defined(_M_X64) && ENABLE_SSE __m128i xmm[NODE_WORDS/4]; #endif } node; static inline uint8_t ethash_h256_get(ethash_h256_t const* hash, unsigned int i) { return hash->b[i]; } static inline void ethash_h256_set(ethash_h256_t* hash, unsigned int i, uint8_t v) { hash->b[i] = v; } static inline void ethash_h256_reset(ethash_h256_t* hash) { memset(hash, 0, 32); } // Returns if hash is less than or equal to boundary (2^256/difficulty) static inline bool ethash_check_difficulty( ethash_h256_t const* hash, ethash_h256_t const* boundary ) { // Boundary is big endian for (int i = 0; i < 32; i++) { if (ethash_h256_get(hash, i) == ethash_h256_get(boundary, i)) { continue; } return ethash_h256_get(hash, i) < ethash_h256_get(boundary, i); } return true; } /** * Difficulty quick check for POW preverification * * @param header_hash The hash of the header * @param nonce The block's nonce * @param mix_hash The mix digest hash * @param boundary The boundary is defined as (2^256 / difficulty) * @return true for succesful pre-verification and false otherwise */ bool ethash_quick_check_difficulty( ethash_h256_t const* header_hash, uint64_t const nonce, ethash_h256_t const* mix_hash, ethash_h256_t const* boundary ); struct ethash_light { void* cache; uint64_t cache_size; uint64_t block_number; }; /** * Allocate and initialize a new ethash_light handler. Internal version * * @param cache_size The size of the cache in bytes * @param seed Block seedhash to be used during the computation of the * cache nodes * @return Newly allocated ethash_light handler or NULL in case of * ERRNOMEM or invalid parameters used for @ref ethash_compute_cache_nodes() */ ethash_light_t ethash_light_new_internal(uint64_t cache_size, ethash_h256_t const* seed); /** * Calculate the light client data. Internal version. * * @param light The light client handler * @param full_size The size of the full data in bytes. * @param header_hash The header hash to pack into the mix * @param nonce The nonce to pack into the mix * @return The resulting hash. */ ethash_return_value_t ethash_light_compute_internal( ethash_light_t light, uint64_t full_size, ethash_h256_t const header_hash, uint64_t nonce ); struct ethash_full { FILE* file; uint64_t file_size; node* data; }; /** * Allocate and initialize a new ethash_full handler. Internal version. * * @param dirname The directory in which to put the DAG file. * @param seedhash The seed hash of the block. Used in the DAG file naming. * @param full_size The size of the full data in bytes. * @param cache A cache object to use that was allocated with @ref ethash_cache_new(). * Iff this function succeeds the ethash_full_t will take memory * memory ownership of the cache and free it at deletion. If * not then the user still has to handle freeing of the cache himself. * @param callback A callback function with signature of @ref ethash_callback_t * It accepts an unsigned with which a progress of DAG calculation * can be displayed. If all goes well the callback should return 0. * If a non-zero value is returned then DAG generation will stop. * @return Newly allocated ethash_full handler or NULL in case of * ERRNOMEM or invalid parameters used for @ref ethash_compute_full_data() */ ethash_full_t ethash_full_new_internal( char const* dirname, ethash_h256_t const seed_hash, uint64_t full_size, ethash_light_t const light, ethash_callback_t callback ); void ethash_calculate_dag_item( node* const ret, uint32_t node_index, ethash_light_t const cache ); void ethash_quick_hash( ethash_h256_t* return_hash, ethash_h256_t const* header_hash, const uint64_t nonce, ethash_h256_t const* mix_hash ); uint64_t ethash_get_datasize(uint64_t const block_number); uint64_t ethash_get_cachesize(uint64_t const block_number); /** * Compute the memory data for a full node's memory * * @param mem A pointer to an ethash full's memory * @param full_size The size of the full data in bytes * @param cache A cache object to use in the calculation * @param callback The callback function. Check @ref ethash_full_new() for details. * @return true if all went fine and false for invalid parameters */ bool ethash_compute_full_data( void* mem, uint64_t full_size, ethash_light_t const light, ethash_callback_t callback ); #ifdef __cplusplus } #endif pyethash-0.1.27/src/libethash/io.c0000644000076500000240000000641312562150222017156 0ustar heikostaff00000000000000/* This file is part of ethash. ethash is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ethash. If not, see . */ /** @file io.c * @author Lefteris Karapetsas * @date 2015 */ #include "io.h" #include #include #include enum ethash_io_rc ethash_io_prepare( char const* dirname, ethash_h256_t const seedhash, FILE** output_file, uint64_t file_size, bool force_create ) { char mutable_name[DAG_MUTABLE_NAME_MAX_SIZE]; enum ethash_io_rc ret = ETHASH_IO_FAIL; // reset errno before io calls errno = 0; // assert directory exists if (!ethash_mkdir(dirname)) { ETHASH_CRITICAL("Could not create the ethash directory"); goto end; } ethash_io_mutable_name(ETHASH_REVISION, &seedhash, mutable_name); char* tmpfile = ethash_io_create_filename(dirname, mutable_name, strlen(mutable_name)); if (!tmpfile) { ETHASH_CRITICAL("Could not create the full DAG pathname"); goto end; } FILE *f; if (!force_create) { // try to open the file f = ethash_fopen(tmpfile, "rb+"); if (f) { size_t found_size; if (!ethash_file_size(f, &found_size)) { fclose(f); ETHASH_CRITICAL("Could not query size of DAG file: \"%s\"", tmpfile); goto free_memo; } if (file_size != found_size - ETHASH_DAG_MAGIC_NUM_SIZE) { fclose(f); ret = ETHASH_IO_MEMO_SIZE_MISMATCH; goto free_memo; } // compare the magic number, no need to care about endianess since it's local uint64_t magic_num; if (fread(&magic_num, ETHASH_DAG_MAGIC_NUM_SIZE, 1, f) != 1) { // I/O error fclose(f); ETHASH_CRITICAL("Could not read from DAG file: \"%s\"", tmpfile); ret = ETHASH_IO_MEMO_SIZE_MISMATCH; goto free_memo; } if (magic_num != ETHASH_DAG_MAGIC_NUM) { fclose(f); ret = ETHASH_IO_MEMO_SIZE_MISMATCH; goto free_memo; } ret = ETHASH_IO_MEMO_MATCH; goto set_file; } } // file does not exist, will need to be created f = ethash_fopen(tmpfile, "wb+"); if (!f) { ETHASH_CRITICAL("Could not create DAG file: \"%s\"", tmpfile); goto free_memo; } // make sure it's of the proper size if (fseek(f, (long int)(file_size + ETHASH_DAG_MAGIC_NUM_SIZE - 1), SEEK_SET) != 0) { fclose(f); ETHASH_CRITICAL("Could not seek to the end of DAG file: \"%s\". Insufficient space?", tmpfile); goto free_memo; } if (fputc('\n', f) == EOF) { fclose(f); ETHASH_CRITICAL("Could not write in the end of DAG file: \"%s\". Insufficient space?", tmpfile); goto free_memo; } if (fflush(f) != 0) { fclose(f); ETHASH_CRITICAL("Could not flush at end of DAG file: \"%s\". Insufficient space?", tmpfile); goto free_memo; } ret = ETHASH_IO_MEMO_MISMATCH; goto set_file; ret = ETHASH_IO_MEMO_MATCH; set_file: *output_file = f; free_memo: free(tmpfile); end: return ret; } pyethash-0.1.27/src/libethash/io.h0000644000076500000240000001646212562150222017170 0ustar heikostaff00000000000000/* This file is part of ethash. ethash is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ethash. If not, see . */ /** @file io.h * @author Lefteris Karapetsas * @date 2015 */ #pragma once #include #include #include #include #ifdef __cplusplus #define __STDC_FORMAT_MACROS 1 #endif #include #include "endian.h" #include "ethash.h" #ifdef __cplusplus extern "C" { #endif // Maximum size for mutable part of DAG file name // 6 is for "full-R", the suffix of the filename // 10 is for maximum number of digits of a uint32_t (for REVISION) // 1 is for - and 16 is for the first 16 hex digits for first 8 bytes of // the seedhash and last 1 is for the null terminating character // Reference: https://github.com/ethereum/wiki/wiki/Ethash-DAG #define DAG_MUTABLE_NAME_MAX_SIZE (6 + 10 + 1 + 16 + 1) /// Possible return values of @see ethash_io_prepare enum ethash_io_rc { ETHASH_IO_FAIL = 0, ///< There has been an IO failure ETHASH_IO_MEMO_SIZE_MISMATCH, ///< DAG with revision/hash match, but file size was wrong. ETHASH_IO_MEMO_MISMATCH, ///< The DAG file did not exist or there was revision/hash mismatch ETHASH_IO_MEMO_MATCH, ///< DAG file existed and revision/hash matched. No need to do anything }; // small hack for windows. I don't feel I should use va_args and forward just // to have this one function properly cross-platform abstracted #if defined(_WIN32) && !defined(__GNUC__) #define snprintf(...) sprintf_s(__VA_ARGS__) #endif /** * Logs a critical error in important parts of ethash. Should mostly help * figure out what kind of problem (I/O, memory e.t.c.) causes a NULL * ethash_full_t */ #ifdef ETHASH_PRINT_CRITICAL_OUTPUT #define ETHASH_CRITICAL(...) \ do \ { \ printf("ETHASH CRITICAL ERROR: "__VA_ARGS__); \ printf("\n"); \ fflush(stdout); \ } while (0) #else #define ETHASH_CRITICAL(...) #endif /** * Prepares io for ethash * * Create the DAG directory and the DAG file if they don't exist. * * @param[in] dirname A null terminated c-string of the path of the ethash * data directory. If it does not exist it's created. * @param[in] seedhash The seedhash of the current block number, used in the * naming of the file as can be seen from the spec at: * https://github.com/ethereum/wiki/wiki/Ethash-DAG * @param[out] output_file If there was no failure then this will point to an open * file descriptor. User is responsible for closing it. * In the case of memo match then the file is open on read * mode, while on the case of mismatch a new file is created * on write mode * @param[in] file_size The size that the DAG file should have on disk * @param[out] force_create If true then there is no check to see if the file * already exists * @return For possible return values @see enum ethash_io_rc */ enum ethash_io_rc ethash_io_prepare( char const* dirname, ethash_h256_t const seedhash, FILE** output_file, uint64_t file_size, bool force_create ); /** * An fopen wrapper for no-warnings crossplatform fopen. * * Msvc compiler considers fopen to be insecure and suggests to use their * alternative. This is a wrapper for this alternative. Another way is to * #define _CRT_SECURE_NO_WARNINGS, but disabling all security warnings does * not sound like a good idea. * * @param file_name The path to the file to open * @param mode Opening mode. Check fopen() * @return The FILE* or NULL in failure */ FILE* ethash_fopen(char const* file_name, char const* mode); /** * An strncat wrapper for no-warnings crossplatform strncat. * * Msvc compiler considers strncat to be insecure and suggests to use their * alternative. This is a wrapper for this alternative. Another way is to * #define _CRT_SECURE_NO_WARNINGS, but disabling all security warnings does * not sound like a good idea. * * @param des Destination buffer * @param dest_size Maximum size of the destination buffer. This is the * extra argument for the MSVC secure strncat * @param src Souce buffer * @param count Number of bytes to copy from source * @return If all is well returns the dest buffer. If there is an * error returns NULL */ char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count); /** * A cross-platform mkdir wrapper to create a directory or assert it's there * * @param dirname The full path of the directory to create * @return true if the directory was created or if it already * existed */ bool ethash_mkdir(char const* dirname); /** * Get a file's size * * @param[in] f The open file stream whose size to get * @param[out] size Pass a size_t by reference to contain the file size * @return true in success and false if there was a failure */ bool ethash_file_size(FILE* f, size_t* ret_size); /** * Get a file descriptor number from a FILE stream * * @param f The file stream whose fd to get * @return Platform specific fd handler */ int ethash_fileno(FILE* f); /** * Create the filename for the DAG. * * @param dirname The directory name in which the DAG file should reside * If it does not end with a directory separator it is appended. * @param filename The actual name of the file * @param filename_length The length of the filename in bytes * @return A char* containing the full name. User must deallocate. */ char* ethash_io_create_filename( char const* dirname, char const* filename, size_t filename_length ); /** * Gets the default directory name for the DAG depending on the system * * The spec defining this directory is here: https://github.com/ethereum/wiki/wiki/Ethash-DAG * * @param[out] strbuf A string buffer of sufficient size to keep the * null termninated string of the directory name * @param[in] buffsize Size of @a strbuf in bytes * @return true for success and false otherwise */ bool ethash_get_default_dirname(char* strbuf, size_t buffsize); static inline bool ethash_io_mutable_name( uint32_t revision, ethash_h256_t const* seed_hash, char* output ) { uint64_t hash = *((uint64_t*)seed_hash); #if LITTLE_ENDIAN == BYTE_ORDER hash = ethash_swap_u64(hash); #endif return snprintf(output, DAG_MUTABLE_NAME_MAX_SIZE, "full-R%u-%016" PRIx64, revision, hash) >= 0; } #ifdef __cplusplus } #endif pyethash-0.1.27/src/libethash/io_posix.c0000644000076500000240000000520212562150222020373 0ustar heikostaff00000000000000/* This file is part of ethash. ethash is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ethash. If not, see . */ /** @file io_posix.c * @author Lefteris Karapetsas * @date 2015 */ #include "io.h" #include #include #include #include #include #include #include #include FILE* ethash_fopen(char const* file_name, char const* mode) { return fopen(file_name, mode); } char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count) { return strlen(dest) + count + 1 <= dest_size ? strncat(dest, src, count) : NULL; } bool ethash_mkdir(char const* dirname) { int rc = mkdir(dirname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); return rc != -1 || errno == EEXIST; } int ethash_fileno(FILE *f) { return fileno(f); } char* ethash_io_create_filename( char const* dirname, char const* filename, size_t filename_length ) { size_t dirlen = strlen(dirname); size_t dest_size = dirlen + filename_length + 1; if (dirname[dirlen] != '/') { dest_size += 1; } char* name = malloc(dest_size); if (!name) { return NULL; } name[0] = '\0'; ethash_strncat(name, dest_size, dirname, dirlen); if (dirname[dirlen] != '/') { ethash_strncat(name, dest_size, "/", 1); } ethash_strncat(name, dest_size, filename, filename_length); return name; } bool ethash_file_size(FILE* f, size_t* ret_size) { struct stat st; int fd; if ((fd = fileno(f)) == -1 || fstat(fd, &st) != 0) { return false; } *ret_size = st.st_size; return true; } bool ethash_get_default_dirname(char* strbuf, size_t buffsize) { static const char dir_suffix[] = ".ethash/"; strbuf[0] = '\0'; char* home_dir = getenv("HOME"); if (!home_dir || strlen(home_dir) == 0) { struct passwd* pwd = getpwuid(getuid()); if (pwd) home_dir = pwd->pw_dir; } size_t len = strlen(home_dir); if (!ethash_strncat(strbuf, buffsize, home_dir, len)) { return false; } if (home_dir[len] != '/') { if (!ethash_strncat(strbuf, buffsize, "/", 1)) { return false; } } return ethash_strncat(strbuf, buffsize, dir_suffix, sizeof(dir_suffix)); } pyethash-0.1.27/src/libethash/mmap.h0000644000076500000240000000253212523111436017505 0ustar heikostaff00000000000000/* This file is part of ethash. ethash is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ethash. If not, see . */ /** @file mmap.h * @author Lefteris Karapetsas * @date 2015 */ #pragma once #if defined(__MINGW32__) || defined(_WIN32) #include #define PROT_READ 0x1 #define PROT_WRITE 0x2 /* This flag is only available in WinXP+ */ #ifdef FILE_MAP_EXECUTE #define PROT_EXEC 0x4 #else #define PROT_EXEC 0x0 #define FILE_MAP_EXECUTE 0 #endif #define MAP_SHARED 0x01 #define MAP_PRIVATE 0x02 #define MAP_ANONYMOUS 0x20 #define MAP_ANON MAP_ANONYMOUS #define MAP_FAILED ((void *) -1) void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t offset); void munmap(void* addr, size_t length); #else // posix, yay! ^_^ #include #endif pyethash-0.1.27/src/libethash/sha3.c0000644000076500000240000000740612513427337017422 0ustar heikostaff00000000000000/** libkeccak-tiny * * A single-file implementation of SHA-3 and SHAKE. * * Implementor: David Leon Gil * License: CC0, attribution kindly requested. Blame taken too, * but not liability. */ #include "sha3.h" #include #include #include #include /******** The Keccak-f[1600] permutation ********/ /*** Constants. ***/ static const uint8_t rho[24] = \ { 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 2, 14, 27, 41, 56, 8, 25, 43, 62, 18, 39, 61, 20, 44}; static const uint8_t pi[24] = \ {10, 7, 11, 17, 18, 3, 5, 16, 8, 21, 24, 4, 15, 23, 19, 13, 12, 2, 20, 14, 22, 9, 6, 1}; static const uint64_t RC[24] = \ {1ULL, 0x8082ULL, 0x800000000000808aULL, 0x8000000080008000ULL, 0x808bULL, 0x80000001ULL, 0x8000000080008081ULL, 0x8000000000008009ULL, 0x8aULL, 0x88ULL, 0x80008009ULL, 0x8000000aULL, 0x8000808bULL, 0x800000000000008bULL, 0x8000000000008089ULL, 0x8000000000008003ULL, 0x8000000000008002ULL, 0x8000000000000080ULL, 0x800aULL, 0x800000008000000aULL, 0x8000000080008081ULL, 0x8000000000008080ULL, 0x80000001ULL, 0x8000000080008008ULL}; /*** Helper macros to unroll the permutation. ***/ #define rol(x, s) (((x) << s) | ((x) >> (64 - s))) #define REPEAT6(e) e e e e e e #define REPEAT24(e) REPEAT6(e e e e) #define REPEAT5(e) e e e e e #define FOR5(v, s, e) \ v = 0; \ REPEAT5(e; v += s;) /*** Keccak-f[1600] ***/ static inline void keccakf(void* state) { uint64_t* a = (uint64_t*)state; uint64_t b[5] = {0}; uint64_t t = 0; uint8_t x, y; for (int i = 0; i < 24; i++) { // Theta FOR5(x, 1, b[x] = 0; FOR5(y, 5, b[x] ^= a[x + y]; )) FOR5(x, 1, FOR5(y, 5, a[y + x] ^= b[(x + 4) % 5] ^ rol(b[(x + 1) % 5], 1); )) // Rho and pi t = a[1]; x = 0; REPEAT24(b[0] = a[pi[x]]; a[pi[x]] = rol(t, rho[x]); t = b[0]; x++; ) // Chi FOR5(y, 5, FOR5(x, 1, b[x] = a[y + x];) FOR5(x, 1, a[y + x] = b[x] ^ ((~b[(x + 1) % 5]) & b[(x + 2) % 5]); )) // Iota a[0] ^= RC[i]; } } /******** The FIPS202-defined functions. ********/ /*** Some helper macros. ***/ #define _(S) do { S } while (0) #define FOR(i, ST, L, S) \ _(for (size_t i = 0; i < L; i += ST) { S; }) #define mkapply_ds(NAME, S) \ static inline void NAME(uint8_t* dst, \ const uint8_t* src, \ size_t len) { \ FOR(i, 1, len, S); \ } #define mkapply_sd(NAME, S) \ static inline void NAME(const uint8_t* src, \ uint8_t* dst, \ size_t len) { \ FOR(i, 1, len, S); \ } mkapply_ds(xorin, dst[i] ^= src[i]) // xorin mkapply_sd(setout, dst[i] = src[i]) // setout #define P keccakf #define Plen 200 // Fold P*F over the full blocks of an input. #define foldP(I, L, F) \ while (L >= rate) { \ F(a, I, rate); \ P(a); \ I += rate; \ L -= rate; \ } /** The sponge-based hash construction. **/ static inline int hash(uint8_t* out, size_t outlen, const uint8_t* in, size_t inlen, size_t rate, uint8_t delim) { if ((out == NULL) || ((in == NULL) && inlen != 0) || (rate >= Plen)) { return -1; } uint8_t a[Plen] = {0}; // Absorb input. foldP(in, inlen, xorin); // Xor in the DS and pad frame. a[inlen] ^= delim; a[rate - 1] ^= 0x80; // Xor in the last block. xorin(a, in, inlen); // Apply P P(a); // Squeeze output. foldP(out, outlen, setout); setout(a, out, outlen); memset(a, 0, 200); return 0; } #define defsha3(bits) \ int sha3_##bits(uint8_t* out, size_t outlen, \ const uint8_t* in, size_t inlen) { \ if (outlen > (bits/8)) { \ return -1; \ } \ return hash(out, outlen, in, inlen, 200 - (bits / 4), 0x01); \ } /*** FIPS202 SHA3 FOFs ***/ defsha3(256) defsha3(512) pyethash-0.1.27/src/libethash/sha3.h0000644000076500000240000000103712523111436017410 0ustar heikostaff00000000000000#pragma once #ifdef __cplusplus extern "C" { #endif #include "compiler.h" #include #include struct ethash_h256; #define decsha3(bits) \ int sha3_##bits(uint8_t*, size_t, uint8_t const*, size_t); decsha3(256) decsha3(512) static inline void SHA3_256(struct ethash_h256 const* ret, uint8_t const* data, size_t const size) { sha3_256((uint8_t*)ret, 32, data, size); } static inline void SHA3_512(uint8_t* ret, uint8_t const* data, size_t const size) { sha3_512(ret, 64, data, size); } #ifdef __cplusplus } #endif pyethash-0.1.27/src/libethash/sha3_cryptopp.cpp0000644000076500000240000000215112523111436021701 0ustar heikostaff00000000000000/* This file is part of ethash. ethash is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ethash. If not, see . */ /** @file sha3.cpp * @author Tim Hughes * @date 2015 */ #include #include extern "C" { struct ethash_h256; typedef struct ethash_h256 ethash_h256_t; void SHA3_256(ethash_h256_t const* ret, uint8_t const* data, size_t size) { CryptoPP::SHA3_256().CalculateDigest((uint8_t*)ret, data, size); } void SHA3_512(uint8_t* const ret, uint8_t const* data, size_t size) { CryptoPP::SHA3_512().CalculateDigest(ret, data, size); } } pyethash-0.1.27/src/libethash/sha3_cryptopp.h0000644000076500000240000000047412523111455021355 0ustar heikostaff00000000000000#pragma once #include "compiler.h" #include #include #ifdef __cplusplus extern "C" { #endif struct ethash_h256; void SHA3_256(struct ethash_h256 const* ret, uint8_t const* data, size_t size); void SHA3_512(uint8_t* const ret, uint8_t const* data, size_t size); #ifdef __cplusplus } #endif pyethash-0.1.27/src/libethash/util.h0000644000076500000240000000220212523111436017522 0ustar heikostaff00000000000000/* This file is part of ethash. ethash is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ethash. If not, see . */ /** @file util.h * @author Tim Hughes * @date 2015 */ #pragma once #include #include "compiler.h" #ifdef __cplusplus extern "C" { #endif #ifdef _MSC_VER void debugf(char const* str, ...); #else #define debugf printf #endif static inline uint32_t min_u32(uint32_t a, uint32_t b) { return a < b ? a : b; } static inline uint32_t clamp_u32(uint32_t x, uint32_t min_, uint32_t max_) { return x < min_ ? min_ : (x > max_ ? max_ : x); } #ifdef __cplusplus } #endif pyethash-0.1.27/src/python/0000755000076500000240000000000012562316162015764 5ustar heikostaff00000000000000pyethash-0.1.27/src/python/core.c0000644000076500000240000002577212523315015017066 0ustar heikostaff00000000000000#include #include #include #include #include #include "../libethash/ethash.h" #include "../libethash/internal.h" #if PY_MAJOR_VERSION >= 3 #define PY_STRING_FORMAT "y#" #define PY_CONST_STRING_FORMAT "y" #else #define PY_STRING_FORMAT "s#" #define PY_CONST_STRING_FORMAT "s" #endif #define MIX_WORDS (ETHASH_MIX_BYTES/4) static PyObject * mkcache_bytes(PyObject *self, PyObject *args) { unsigned long block_number; unsigned long cache_size; if (!PyArg_ParseTuple(args, "k", &block_number)) return 0; ethash_light_t L = ethash_light_new(block_number); PyObject * val = Py_BuildValue(PY_STRING_FORMAT, L->cache, L->cache_size); free(L->cache); return val; } /* static PyObject * calc_dataset_bytes(PyObject *self, PyObject *args) { char *cache_bytes; unsigned long full_size; int cache_size; if (!PyArg_ParseTuple(args, "k" PY_STRING_FORMAT, &full_size, &cache_bytes, &cache_size)) return 0; if (full_size % MIX_WORDS != 0) { char error_message[1024]; sprintf(error_message, "The size of data set must be a multiple of %i bytes (was %lu)", MIX_WORDS, full_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } if (cache_size % ETHASH_HASH_BYTES != 0) { char error_message[1024]; sprintf(error_message, "The size of the cache must be a multiple of %i bytes (was %i)", ETHASH_HASH_BYTES, cache_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } ethash_params params; params.cache_size = (size_t) cache_size; params.full_size = (size_t) full_size; ethash_cache cache; cache.mem = (void *) cache_bytes; void *mem = malloc(params.full_size); ethash_compute_full_data(mem, ¶ms, &cache); PyObject * val = Py_BuildValue(PY_STRING_FORMAT, (char *) mem, full_size); free(mem); return val; }*/ // hashimoto_light(full_size, cache, header, nonce) static PyObject * hashimoto_light(PyObject *self, PyObject *args) { char *cache_bytes; char *header; unsigned long block_number; unsigned long long nonce; int cache_size, header_size; if (!PyArg_ParseTuple(args, "k" PY_STRING_FORMAT PY_STRING_FORMAT "K", &block_number, &cache_bytes, &cache_size, &header, &header_size, &nonce)) return 0; if (header_size != 32) { char error_message[1024]; sprintf(error_message, "Seed must be 32 bytes long (was %i)", header_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } struct ethash_light *s; s = calloc(sizeof(*s), 1); s->cache = cache_bytes; s->cache_size = cache_size; s->block_number = block_number; struct ethash_h256 *h; h = calloc(sizeof(*h), 1); for (int i = 0; i < 32; i++) h->b[i] = header[i]; struct ethash_return_value out = ethash_light_compute(s, *h, nonce); return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "," PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "}", "mix digest", &out.mix_hash, 32, "result", &out.result, 32); } /* // hashimoto_full(dataset, header, nonce) static PyObject * hashimoto_full(PyObject *self, PyObject *args) { char *full_bytes; char *header; unsigned long long nonce; int full_size, header_size; if (!PyArg_ParseTuple(args, PY_STRING_FORMAT PY_STRING_FORMAT "K", &full_bytes, &full_size, &header, &header_size, &nonce)) return 0; if (full_size % MIX_WORDS != 0) { char error_message[1024]; sprintf(error_message, "The size of data set must be a multiple of %i bytes (was %i)", MIX_WORDS, full_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } if (header_size != 32) { char error_message[1024]; sprintf(error_message, "Header must be 32 bytes long (was %i)", header_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } ethash_return_value out; ethash_params params; params.full_size = (size_t) full_size; ethash_full(&out, (void *) full_bytes, ¶ms, (ethash_h256_t *) header, nonce); return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "}", "mix digest", &out.mix_hash, 32, "result", &out.result, 32); } // mine(dataset_bytes, header, difficulty_bytes) static PyObject * mine(PyObject *self, PyObject *args) { char *full_bytes; char *header; char *difficulty; srand(time(0)); uint64_t nonce = ((uint64_t) rand()) << 32 | rand(); int full_size, header_size, difficulty_size; if (!PyArg_ParseTuple(args, PY_STRING_FORMAT PY_STRING_FORMAT PY_STRING_FORMAT, &full_bytes, &full_size, &header, &header_size, &difficulty, &difficulty_size)) return 0; if (full_size % MIX_WORDS != 0) { char error_message[1024]; sprintf(error_message, "The size of data set must be a multiple of %i bytes (was %i)", MIX_WORDS, full_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } if (header_size != 32) { char error_message[1024]; sprintf(error_message, "Header must be 32 bytes long (was %i)", header_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } if (difficulty_size != 32) { char error_message[1024]; sprintf(error_message, "Difficulty must be an array of 32 bytes (only had %i)", difficulty_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } ethash_return_value out; ethash_params params; params.full_size = (size_t) full_size; // TODO: Multi threading? do { ethash_full(&out, (void *) full_bytes, ¶ms, (const ethash_h256_t *) header, nonce++); // TODO: disagrees with the spec https://github.com/ethereum/wiki/wiki/Ethash#mining } while (!ethash_check_difficulty(&out.result, (const ethash_h256_t *) difficulty)); return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":K}", "mix digest", &out.mix_hash, 32, "result", &out.result, 32, "nonce", nonce); } */ //get_seedhash(block_number) static PyObject * get_seedhash(PyObject *self, PyObject *args) { unsigned long block_number; if (!PyArg_ParseTuple(args, "k", &block_number)) return 0; if (block_number >= ETHASH_EPOCH_LENGTH * 2048) { char error_message[1024]; sprintf(error_message, "Block number must be less than %i (was %lu)", ETHASH_EPOCH_LENGTH * 2048, block_number); PyErr_SetString(PyExc_ValueError, error_message); return 0; } ethash_h256_t seedhash = ethash_get_seedhash(block_number); return Py_BuildValue(PY_STRING_FORMAT, (char *) &seedhash, 32); } static PyMethodDef PyethashMethods[] = { {"get_seedhash", get_seedhash, METH_VARARGS, "get_seedhash(block_number)\n\n" "Gets the seedhash for a block."}, {"mkcache_bytes", mkcache_bytes, METH_VARARGS, "mkcache_bytes(block_number)\n\n" "Makes a byte array for the cache for given block number\n"}, /*{"calc_dataset_bytes", calc_dataset_bytes, METH_VARARGS, "calc_dataset_bytes(full_size, cache_bytes)\n\n" "Makes a byte array for the dataset for a given size given cache bytes"},*/ {"hashimoto_light", hashimoto_light, METH_VARARGS, "hashimoto_light(block_number, cache_bytes, header, nonce)\n\n" "Runs the hashimoto hashing function just using cache bytes. Takes an int (full_size), byte array (cache_bytes), another byte array (header), and an int (nonce). Returns an object containing the mix digest, and hash result."}, /*{"hashimoto_full", hashimoto_full, METH_VARARGS, "hashimoto_full(dataset_bytes, header, nonce)\n\n" "Runs the hashimoto hashing function using the dataset bytes. Useful for testing. Returns an object containing the mix digest (byte array), and hash result (another byte array)."}, {"mine", mine, METH_VARARGS, "mine(dataset_bytes, header, difficulty_bytes)\n\n" "Mine for an adequate header. Returns an object containing the mix digest (byte array), hash result (another byte array) and nonce (an int)."},*/ {NULL, NULL, 0, NULL} }; #if PY_MAJOR_VERSION >= 3 static struct PyModuleDef PyethashModule = { PyModuleDef_HEAD_INIT, "pyethash", "...", -1, PyethashMethods }; PyMODINIT_FUNC PyInit_pyethash(void) { PyObject *module = PyModule_Create(&PyethashModule); // Following Spec: https://github.com/ethereum/wiki/wiki/Ethash#definitions PyModule_AddIntConstant(module, "REVISION", (long) ETHASH_REVISION); PyModule_AddIntConstant(module, "DATASET_BYTES_INIT", (long) ETHASH_DATASET_BYTES_INIT); PyModule_AddIntConstant(module, "DATASET_BYTES_GROWTH", (long) ETHASH_DATASET_BYTES_GROWTH); PyModule_AddIntConstant(module, "CACHE_BYTES_INIT", (long) ETHASH_CACHE_BYTES_INIT); PyModule_AddIntConstant(module, "CACHE_BYTES_GROWTH", (long) ETHASH_CACHE_BYTES_GROWTH); PyModule_AddIntConstant(module, "EPOCH_LENGTH", (long) ETHASH_EPOCH_LENGTH); PyModule_AddIntConstant(module, "MIX_BYTES", (long) ETHASH_MIX_BYTES); PyModule_AddIntConstant(module, "HASH_BYTES", (long) ETHASH_HASH_BYTES); PyModule_AddIntConstant(module, "DATASET_PARENTS", (long) ETHASH_DATASET_PARENTS); PyModule_AddIntConstant(module, "CACHE_ROUNDS", (long) ETHASH_CACHE_ROUNDS); PyModule_AddIntConstant(module, "ACCESSES", (long) ETHASH_ACCESSES); return module; } #else PyMODINIT_FUNC initpyethash(void) { PyObject *module = Py_InitModule("pyethash", PyethashMethods); // Following Spec: https://github.com/ethereum/wiki/wiki/Ethash#definitions PyModule_AddIntConstant(module, "REVISION", (long) ETHASH_REVISION); PyModule_AddIntConstant(module, "DATASET_BYTES_INIT", (long) ETHASH_DATASET_BYTES_INIT); PyModule_AddIntConstant(module, "DATASET_BYTES_GROWTH", (long) ETHASH_DATASET_BYTES_GROWTH); PyModule_AddIntConstant(module, "CACHE_BYTES_INIT", (long) ETHASH_CACHE_BYTES_INIT); PyModule_AddIntConstant(module, "CACHE_BYTES_GROWTH", (long) ETHASH_CACHE_BYTES_GROWTH); PyModule_AddIntConstant(module, "EPOCH_LENGTH", (long) ETHASH_EPOCH_LENGTH); PyModule_AddIntConstant(module, "MIX_BYTES", (long) ETHASH_MIX_BYTES); PyModule_AddIntConstant(module, "HASH_BYTES", (long) ETHASH_HASH_BYTES); PyModule_AddIntConstant(module, "DATASET_PARENTS", (long) ETHASH_DATASET_PARENTS); PyModule_AddIntConstant(module, "CACHE_ROUNDS", (long) ETHASH_CACHE_ROUNDS); PyModule_AddIntConstant(module, "ACCESSES", (long) ETHASH_ACCESSES); } #endif