diff options
| author | obscuren <geffobscura@gmail.com> | 2015-03-20 18:19:12 +0800 |
|---|---|---|
| committer | obscuren <geffobscura@gmail.com> | 2015-03-20 18:19:12 +0800 |
| commit | d8fe8f60e84f599a92783bd690b8d3477cf5a595 (patch) | |
| tree | 1b6cc5040185af843623af900a4112ef5ca11a81 /Godeps | |
| parent | 62236dd95e6d069b8bd9895c9998676b8d946d37 (diff) | |
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updated ethash
Diffstat (limited to 'Godeps')
16 files changed, 1107 insertions, 237 deletions
diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json index e6eab504d..0cdb4b026 100644 --- a/Godeps/Godeps.json +++ b/Godeps/Godeps.json @@ -22,8 +22,8 @@ }, { "ImportPath": "github.com/ethereum/ethash", - "Comment": "v23-12-g149261a", - "Rev": "149261a5d7cafc3943cbcf1d370082ec70d81e8b" + "Comment": "v23.1-25-gc0429f2", + "Rev": "c0429f268b62e2238b684d4b5495f8ff24115424" }, { "ImportPath": "github.com/ethereum/serpent-go", diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go b/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go index 7328bc922..8c325d25d 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go @@ -31,8 +31,8 @@ import ( "time" "unsafe" - "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/pow" ) @@ -360,8 +360,7 @@ func (pow *Ethash) Search(block pow.Block, stop <-chan struct{}) (uint64, []byte } func (pow *Ethash) Verify(block pow.Block) bool { - - return pow.verify(block.HashNoNonce(), block.MixDigest(), block.Difficulty(), block.NumberU64(), block.Nonce()) + return pow.verify(block.HashNoNonce().Bytes(), block.MixDigest().Bytes(), block.Difficulty(), block.NumberU64(), block.Nonce()) } func (pow *Ethash) verify(hash []byte, mixDigest []byte, difficulty *big.Int, blockNum uint64, nonce uint64) bool { diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/js/cache_sizes.js b/Godeps/_workspace/src/github.com/ethereum/ethash/js/cache_sizes.js new file mode 100644 index 000000000..18c567452 --- /dev/null +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/js/cache_sizes.js @@ -0,0 +1,329 @@ +module.exports = [ +16776896, 16907456, 17039296, 17170112, 17301056, 17432512, 17563072, + 17693888, 17824192, 17955904, 18087488, 18218176, 18349504, 18481088, + 18611392, 18742336, 18874304, 19004224, 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18052283264, + 18060672128, 18069056384, 18077449856, 18085837184, 18094225792, + 18102613376, 18111004544, 18119388544, 18127781248, 18136170368, + 18144558976, 18152947328, 18161336192, 18169724288, 18178108544, + 18186498944, 18194886784, 18203275648, 18211666048, 18220048768, + 18228444544, 18236833408, 18245220736 +]; diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/js/ethash.js b/Godeps/_workspace/src/github.com/ethereum/ethash/js/ethash.js index bec1284f6..edff47e63 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/js/ethash.js +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/js/ethash.js @@ -7,184 +7,192 @@ var Keccak = require('./keccak'); var util = require('./util'); +var ethUtil = require('ethereumjs-util'); // 32-bit unsigned modulo -function mod32(x, n) -{ - return (x>>>0) % (n>>>0); +function mod32(x, n) { + return (x >>> 0) % (n >>> 0); } -function fnv(x, y) -{ - // js integer multiply by 0x01000193 will lose precision - return ((x*0x01000000 | 0) + (x*0x193 | 0)) ^ y; +function fnv(x, y) { + // js integer multiply by 0x01000193 will lose precision + return ((x * 0x01000000 | 0) + (x * 0x193 | 0)) ^ y; } -function computeCache(params, seedWords) -{ - var cache = new Uint32Array(params.cacheSize >> 2); - var cacheNodeCount = params.cacheSize >> 6; - - // Initialize cache - var keccak = new Keccak(); - keccak.digestWords(cache, 0, 16, seedWords, 0, seedWords.length); - for (var n = 1; n < cacheNodeCount; ++n) - { - keccak.digestWords(cache, n<<4, 16, cache, (n-1)<<4, 16); - } - - var tmp = new Uint32Array(16); - - // Do randmemohash passes - for (var r = 0; r < params.cacheRounds; ++r) - { - for (var n = 0; n < cacheNodeCount; ++n) - { - var p0 = mod32(n + cacheNodeCount - 1, cacheNodeCount) << 4; - var p1 = mod32(cache[n<<4|0], cacheNodeCount) << 4; - - for (var w = 0; w < 16; w=(w+1)|0) - { - tmp[w] = cache[p0 | w] ^ cache[p1 | w]; - } - - keccak.digestWords(cache, n<<4, 16, tmp, 0, tmp.length); - } - } - return cache; +function computeCache(params, seedWords) { + var cache = new Uint32Array(params.cacheSize >> 2); + var cacheNodeCount = params.cacheSize >> 6; + + // Initialize cache + var keccak = new Keccak(); + keccak.digestWords(cache, 0, 16, seedWords, 0, seedWords.length); + for (var n = 1; n < cacheNodeCount; ++n) { + keccak.digestWords(cache, n << 4, 16, cache, (n - 1) << 4, 16); + } + + var tmp = new Uint32Array(16); + + // Do randmemohash passes + for (var r = 0; r < params.cacheRounds; ++r) { + for (var n = 0; n < cacheNodeCount; ++n) { + var p0 = mod32(n + cacheNodeCount - 1, cacheNodeCount) << 4; + var p1 = mod32(cache[n << 4 | 0], cacheNodeCount) << 4; + + for (var w = 0; w < 16; w = (w + 1) | 0) { + tmp[w] = cache[p0 | w] ^ cache[p1 | w]; + } + + keccak.digestWords(cache, n << 4, 16, tmp, 0, tmp.length); + } + } + return cache; } -function computeDagNode(o_node, params, cache, keccak, nodeIndex) -{ - var cacheNodeCount = params.cacheSize >> 6; - var dagParents = params.dagParents; - - var c = (nodeIndex % cacheNodeCount) << 4; - var mix = o_node; - for (var w = 0; w < 16; ++w) - { - mix[w] = cache[c|w]; - } - mix[0] ^= nodeIndex; - keccak.digestWords(mix, 0, 16, mix, 0, 16); - - for (var p = 0; p < dagParents; ++p) - { - // compute cache node (word) index - c = mod32(fnv(nodeIndex ^ p, mix[p&15]), cacheNodeCount) << 4; - - for (var w = 0; w < 16; ++w) - { - mix[w] = fnv(mix[w], cache[c|w]); - } - } - - keccak.digestWords(mix, 0, 16, mix, 0, 16); +function computeDagNode(o_node, params, cache, keccak, nodeIndex) { + var cacheNodeCount = params.cacheSize >> 6; + var dagParents = params.dagParents; + + var c = (nodeIndex % cacheNodeCount) << 4; + var mix = o_node; + for (var w = 0; w < 16; ++w) { + mix[w] = cache[c | w]; + } + mix[0] ^= nodeIndex; + keccak.digestWords(mix, 0, 16, mix, 0, 16); + + for (var p = 0; p < dagParents; ++p) { + // compute cache node (word) index + c = mod32(fnv(nodeIndex ^ p, mix[p & 15]), cacheNodeCount) << 4; + + for (var w = 0; w < 16; ++w) { + mix[w] = fnv(mix[w], cache[c | w]); + } + } + + keccak.digestWords(mix, 0, 16, mix, 0, 16); } -function computeHashInner(mix, params, cache, keccak, tempNode) -{ - var mixParents = params.mixParents|0; - var mixWordCount = params.mixSize >> 2; - var mixNodeCount = mixWordCount >> 4; - var dagPageCount = (params.dagSize / params.mixSize) >> 0; - - // grab initial first word - var s0 = mix[0]; - - // initialise mix from initial 64 bytes - for (var w = 16; w < mixWordCount; ++w) - { - mix[w] = mix[w & 15]; - } - - for (var a = 0; a < mixParents; ++a) - { - var p = mod32(fnv(s0 ^ a, mix[a & (mixWordCount-1)]), dagPageCount); - var d = (p * mixNodeCount)|0; - - for (var n = 0, w = 0; n < mixNodeCount; ++n, w += 16) - { - computeDagNode(tempNode, params, cache, keccak, (d + n)|0); - - for (var v = 0; v < 16; ++v) - { - mix[w|v] = fnv(mix[w|v], tempNode[v]); - } - } - } +function computeHashInner(mix, params, cache, keccak, tempNode) { + var mixParents = params.mixParents | 0; + var mixWordCount = params.mixSize >> 2; + var mixNodeCount = mixWordCount >> 4; + var dagPageCount = (params.dagSize / params.mixSize) >> 0; + + // grab initial first word + var s0 = mix[0]; + + // initialise mix from initial 64 bytes + for (var w = 16; w < mixWordCount; ++w) { + mix[w] = mix[w & 15]; + } + + for (var a = 0; a < mixParents; ++a) { + var p = mod32(fnv(s0 ^ a, mix[a & (mixWordCount - 1)]), dagPageCount); + var d = (p * mixNodeCount) | 0; + + for (var n = 0, w = 0; n < mixNodeCount; ++n, w += 16) { + computeDagNode(tempNode, params, cache, keccak, (d + n) | 0); + + for (var v = 0; v < 16; ++v) { + mix[w | v] = fnv(mix[w | v], tempNode[v]); + } + } + } } -function convertSeed(seed) -{ - // todo, reconcile with spec, byte ordering? - // todo, big-endian conversion - var newSeed = util.toWords(seed); - if (newSeed === null) - throw Error("Invalid seed '" + seed + "'"); - return newSeed; +function convertSeed(seed) { + // todo, reconcile with spec, byte ordering? + // todo, big-endian conversion + var newSeed = util.toWords(seed); + if (newSeed === null) + throw Error("Invalid seed '" + seed + "'"); + return newSeed; } -exports.defaultParams = function() -{ - return { - cacheSize: 1048384, - cacheRounds: 3, - dagSize: 1073739904, - dagParents: 256, - mixSize: 128, - mixParents: 64, - }; +var params = exports.params = { + REVISION: 23, + DATASET_BYTES_INIT: 1073741824, + DATASET_BYTES_GROWTH: 8388608, + CACHE_BYTES_INIT: 1073741824, + CACHE_BYTES_GROWTH: 131072, + EPOCH_LENGTH: 30000, + MIX_BYTES: 128, + HASH_BYTES: 64, + DATASET_PARENTS: 256, + CACHE_ROUNDS: 3, + ACCESSES: 64 +}; + +var cache_sizes = require('./cache_sizes'); +var dag_sizes = require('./dag_sizes'); + +exports.calcSeed = function(blockNum) { + var epoch; + + var seed = new Uint8Array(32); + + if (blockNum > cache_sizes.length * params.EPOCH_LENGTH) { + return new Error('Time to upgrade to POS!!!'); + } else { + epoch = Math.floor(blockNum / params.EPOCH_LENGTH); + + for (var i = 0; i < epoch; i++) { + seed = ethUtil.sha3(new Buffer(seed)); + } + return seed; + } }; -exports.Ethash = function(params, seed) -{ - // precompute cache and related values - seed = convertSeed(seed); - var cache = computeCache(params, seed); - - // preallocate buffers/etc - var initBuf = new ArrayBuffer(96); - var initBytes = new Uint8Array(initBuf); - var initWords = new Uint32Array(initBuf); - var mixWords = new Uint32Array(params.mixSize / 4); - var tempNode = new Uint32Array(16); - var keccak = new Keccak(); - - var retWords = new Uint32Array(8); - var retBytes = new Uint8Array(retWords.buffer); // supposedly read-only - - this.hash = function(header, nonce) - { - // compute initial hash - initBytes.set(header, 0); - initBytes.set(nonce, 32); - keccak.digestWords(initWords, 0, 16, initWords, 0, 8 + nonce.length/4); - - // compute mix - for (var i = 0; i != 16; ++i) - { - mixWords[i] = initWords[i]; - } - computeHashInner(mixWords, params, cache, keccak, tempNode); - - // compress mix and append to initWords - for (var i = 0; i != mixWords.length; i += 4) - { - initWords[16 + i/4] = fnv(fnv(fnv(mixWords[i], mixWords[i+1]), mixWords[i+2]), mixWords[i+3]); - } - - // final Keccak hashes - keccak.digestWords(retWords, 0, 8, initWords, 0, 24); // Keccak-256(s + cmix) - return retBytes; - }; - - this.cacheDigest = function() - { - return keccak.digest(32, new Uint8Array(cache.buffer)); - }; +exports.defaultParams = function() { + return { + cacheSize: 1048384, + cacheRounds: 3, + dagSize: 1073739904, + dagParents: 256, + mixSize: 128, + mixParents: 64 + }; }; +exports.Ethash = function(params, seed) { + // precompute cache and related values + // seed = convertSeed(seed); + var cache = computeCache(params, seed); + + // preallocate buffers/etc + var initBuf = new ArrayBuffer(96); + var initBytes = new Uint8Array(initBuf); + var initWords = new Uint32Array(initBuf); + var mixWords = new Uint32Array(params.mixSize / 4); + var tempNode = new Uint32Array(16); + var keccak = new Keccak(); + + var retWords = new Uint32Array(8); + var retBytes = new Uint8Array(retWords.buffer); // supposedly read-only + this.hash = function(header, nonce) { + // compute initial hash + initBytes.set(header, 0); + initBytes.set(nonce, 32); + keccak.digestWords(initWords, 0, 16, initWords, 0, 8 + nonce.length / 4); + // compute mix + for (var i = 0; i !== 16; ++i) { + mixWords[i] = initWords[i]; + } + computeHashInner(mixWords, params, cache, keccak, tempNode); + // compress mix and append to initWords + for (var i = 0; i !== mixWords.length; i += 4) { + initWords[16 + i / 4] = fnv(fnv(fnv(mixWords[i], mixWords[i + 1]), mixWords[i + 2]), mixWords[i + 3]); + } + + // final Keccak hashes + keccak.digestWords(retWords, 0, 8, initWords, 0, 24); // Keccak-256(s + cmix) + return retBytes; + }; + + this.cacheDigest = function() { + return keccak.digest(32, new Uint8Array(cache.buffer)); + }; +}; diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/js/package.json b/Godeps/_workspace/src/github.com/ethereum/ethash/js/package.json new file mode 100644 index 000000000..08a14d479 --- /dev/null +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/js/package.json @@ -0,0 +1,21 @@ +{ + "name": "ethash.js", + "version": "0.0.1", + "description": "", + "main": "ethash.js", + "scripts": { + "test": "node ./test/test.js" + }, + "repository": { + "type": "git", + "url": "https://github.com/ethereum/ethash/tree/master/js" + }, + "keywords": [ + "ethereum" + ], + "author": "", + "license": "mit", + "devDependencies": { + "ethereum-tests": "0.0.5" + } +} diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/js/test/seedHash.js b/Godeps/_workspace/src/github.com/ethereum/ethash/js/test/seedHash.js new file mode 100644 index 000000000..a3666a9ed --- /dev/null +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/js/test/seedHash.js @@ -0,0 +1,48 @@ +var tape = require('tape'); +const ethash = require('../ethash.js'); + +tape('seed hash', function(t) { + + t.test('seed should match TRUTH', function(st) { + const seed = '290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563'; + const blockNum = 30000; + + var r = new Buffer(ethash.calcSeed(blockNum)); + st.equal(r.toString('hex'), seed); + + st.end(); + }); + + t.test('seed should match TRUTH2', function(st) { + const seed = '510e4e770828ddbf7f7b00ab00a9f6adaf81c0dc9cc85f1f8249c256942d61d9'; + const blockNum = 60000; + + var r = new Buffer(ethash.calcSeed(blockNum)); + st.equal(r.toString('hex'), seed); + + st.end(); + }); + + t.test('seed should match TRUTH3', function(st) { + const seed = '510e4e770828ddbf7f7b00ab00a9f6adaf81c0dc9cc85f1f8249c256942d61d9'; + const blockNum = 60700; + + var r = new Buffer(ethash.calcSeed(blockNum)); + st.equal(r.toString('hex'), seed); + + st.end(); + }); + + t.test('randomized tests', function(st) { + for (var i = 0; i < 100; i++) { + var x = Math.floor(ethash.params.EPOCH_LENGTH * 2048 * Math.random()); + st.equal(ethash.calcSeed(x).toString('hex'), ethash.calcSeed(Math.floor(x / ethash.params.EPOCH_LENGTH) * ethash.params.EPOCH_LENGTH ).toString('hex')); + } + st.end(); + }); + // '510e4e770828ddbf7f7b00ab00a9f6adaf81c0dc9cc85f1f8249c256942d61d9' + // [7:13:32 PM] Matthew Wampler-Doty: >>> x = randint(0,700000) + // + // >>> pyethash.get_seedhash(x).encode('hex') == pyethash.get_seedhash((x // pyethash.EPOCH_LENGTH) * pyethash.EPOCH_LENGTH).encode('hex') + +}); diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/js/test.js b/Godeps/_workspace/src/github.com/ethereum/ethash/js/test/test.js index 7ebb733ff..edffa268f 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/js/test.js +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/js/test/test.js @@ -4,9 +4,9 @@ /*jslint node: true, shadow:true */ "use strict"; -var ethash = require('./ethash'); -var util = require('./util'); -var Keccak = require('./keccak'); +var ethash = require('../ethash'); +var util = require('../util'); +var Keccak = require('../keccak'); // sanity check hash functions var src = util.stringToBytes(""); @@ -31,23 +31,22 @@ var ethashParams = ethash.defaultParams(); var seed = util.hexStringToBytes("9410b944535a83d9adf6bbdcc80e051f30676173c16ca0d32d6f1263fc246466") var startTime = new Date().getTime(); var hasher = new ethash.Ethash(ethashParams, seed); -console.log('Ethash startup took: '+(new Date().getTime() - startTime) + "ms"); +console.log('Ethash startup took: ' + (new Date().getTime() - startTime) + "ms"); console.log('Ethash cache hash: ' + util.bytesToHexString(hasher.cacheDigest())); var testHexString = "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"; if (testHexString != util.bytesToHexString(util.hexStringToBytes(testHexString))) - throw Error("bytesToHexString or hexStringToBytes broken"); + throw Error("bytesToHexString or hexStringToBytes broken"); + - var header = util.hexStringToBytes("c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"); var nonce = util.hexStringToBytes("0000000000000000"); var hash; startTime = new Date().getTime(); var trials = 10; -for (var i = 0; i < trials; ++i) -{ - hash = hasher.hash(header, nonce); +for (var i = 0; i < trials; ++i) { + hash = hasher.hash(header, nonce); } -console.log("Light client hashes averaged: " + (new Date().getTime() - startTime)/trials + "ms"); +console.log("Light client hashes averaged: " + (new Date().getTime() - startTime) / trials + "ms"); console.log("Hash = " + util.bytesToHexString(hash)); diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/setup.py b/Godeps/_workspace/src/github.com/ethereum/ethash/setup.py index 29d6ad6d2..eedd337ae 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/setup.py +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/setup.py @@ -25,9 +25,9 @@ setup ( author = "Matthew Wampler-Doty", author_email = "matthew.wampler.doty@gmail.com", license = 'GPL', - version = '23', + version = '23.1', url = 'https://github.com/ethereum/ethash', - download_url = 'https://github.com/ethereum/ethash/tarball/v23', + download_url = 'https://github.com/ethereum/ethash/tarball/v23.1', description = 'Python wrappers for ethash, the ethereum proof of work hashing function', ext_modules = [pyethash], ) diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h index 3b747b3ea..cf52ae4f8 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h @@ -48,7 +48,7 @@ extern "C" { // Sow[i*HashBytes]; j++]]]][[2]][[1]] -static const size_t dag_sizes[2048] = { +static const uint64_t dag_sizes[2048] = { 1073739904U, 1082130304U, 1090514816U, 1098906752U, 1107293056U, 1115684224U, 1124070016U, 1132461952U, 1140849536U, 1149232768U, 1157627776U, 1166013824U, 1174404736U, 1182786944U, 1191180416U, @@ -477,7 +477,7 @@ static const size_t dag_sizes[2048] = { // While[! PrimeQ[i], i--]; // Sow[i*HashBytes]; j++]]]][[2]][[1]] -const size_t cache_sizes[2048] = { +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, diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h index a7159de65..cc3d634d0 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h @@ -43,8 +43,8 @@ extern "C" { #endif typedef struct ethash_params { - size_t full_size; // Size of full data set (in bytes, multiple of mix size (128)). - size_t cache_size; // Size of compute cache (in bytes, multiple of node size (64)). + uint64_t full_size; // Size of full data set (in bytes, multiple of mix size (128)). + uint64_t cache_size; // Size of compute cache (in bytes, multiple of node size (64)). } ethash_params; typedef struct ethash_return_value { @@ -52,45 +52,52 @@ typedef struct ethash_return_value { uint8_t mix_hash[32]; } ethash_return_value; -size_t ethash_get_datasize(const uint32_t block_number); -size_t ethash_get_cachesize(const uint32_t block_number); +uint64_t ethash_get_datasize(const uint32_t block_number); +uint64_t ethash_get_cachesize(const uint32_t block_number); -// initialize the parameters -static inline void ethash_params_init(ethash_params *params, const uint32_t block_number) { +// Initialize the Parameters +static inline int ethash_params_init(ethash_params *params, const uint32_t block_number) { params->full_size = ethash_get_datasize(block_number); + if (params->full_size == 0) + return 0; + params->cache_size = ethash_get_cachesize(block_number); + if (params->cache_size == 0) + return 0; + + return 1; } typedef struct ethash_cache { void *mem; } ethash_cache; -void ethash_mkcache(ethash_cache *cache, ethash_params const *params, const uint8_t seed[32]); -void ethash_compute_full_data(void *mem, ethash_params const *params, ethash_cache const *cache); -void ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce); -void ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce); +int ethash_mkcache(ethash_cache *cache, ethash_params const *params, const uint8_t seed[32]); +int ethash_compute_full_data(void *mem, ethash_params const *params, ethash_cache const *cache); +int ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce); +int ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce); void ethash_get_seedhash(uint8_t seedhash[32], const uint32_t block_number); -static inline void ethash_prep_light(void *cache, ethash_params const *params, const uint8_t seed[32]) { +static inline int ethash_prep_light(void *cache, ethash_params const *params, const uint8_t seed[32]) { ethash_cache c; c.mem = cache; - ethash_mkcache(&c, params, seed); + return ethash_mkcache(&c, params, seed); } -static inline void ethash_compute_light(ethash_return_value *ret, void const *cache, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce) { +static inline int ethash_compute_light(ethash_return_value *ret, void const *cache, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce) { ethash_cache c; c.mem = (void *) cache; - ethash_light(ret, &c, params, header_hash, nonce); + return ethash_light(ret, &c, params, header_hash, nonce); } -static inline void ethash_prep_full(void *full, ethash_params const *params, void const *cache) { +static inline int ethash_prep_full(void *full, ethash_params const *params, void const *cache) { ethash_cache c; c.mem = (void *) cache; - ethash_compute_full_data(full, params, &c); + return ethash_compute_full_data(full, params, &c); } -static inline void ethash_compute_full(ethash_return_value *ret, void const *full, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce) { - ethash_full(ret, full, params, header_hash, nonce); +static inline int ethash_compute_full(ethash_return_value *ret, void const *full, ethash_params const *params, const uint8_t header_hash[32], const uint64_t nonce) { + return ethash_full(ret, full, params, header_hash, nonce); } // Returns if hash is less than or equal to difficulty diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c index 0a7e767e7..c8748408a 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c @@ -20,7 +20,6 @@ * @date 2015 */ -#include <assert.h> #include <inttypes.h> #include <stddef.h> #include "ethash.h" @@ -29,6 +28,9 @@ #include "internal.h" #include "data_sizes.h" +// Inline assembly doesn't work +#define ENABLE_SSE 0 + #ifdef WITH_CRYPTOPP #include "sha3_cryptopp.h" @@ -37,24 +39,29 @@ #include "sha3.h" #endif // WITH_CRYPTOPP -size_t ethash_get_datasize(const uint32_t block_number) { - assert(block_number / EPOCH_LENGTH < 2048); +uint64_t ethash_get_datasize(const uint32_t block_number) { + if (block_number / EPOCH_LENGTH >= 2048) + return 0; return dag_sizes[block_number / EPOCH_LENGTH]; } -size_t ethash_get_cachesize(const uint32_t block_number) { - assert(block_number / EPOCH_LENGTH < 2048); +uint64_t ethash_get_cachesize(const uint32_t block_number) { + if (block_number / EPOCH_LENGTH >= 2048) + return 0; return cache_sizes[block_number / 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) -void static ethash_compute_cache_nodes( +int static ethash_compute_cache_nodes( node *const nodes, ethash_params const *params, const uint8_t seed[32]) { - assert((params->cache_size % sizeof(node)) == 0); + + if ((params->cache_size % sizeof(node)) != 0) + return 0; + uint32_t const num_nodes = (uint32_t) (params->cache_size / sizeof(node)); SHA3_512(nodes[0].bytes, seed, 32); @@ -82,22 +89,27 @@ void static ethash_compute_cache_nodes( nodes->words[w] = fix_endian32(nodes->words[w]); } #endif + + return 1; } -void ethash_mkcache( +int ethash_mkcache( ethash_cache *cache, ethash_params const *params, const uint8_t seed[32]) { node *nodes = (node *) cache->mem; - ethash_compute_cache_nodes(nodes, params, seed); + return ethash_compute_cache_nodes(nodes, params, seed); } -void ethash_calculate_dag_item( +int ethash_calculate_dag_item( node *const ret, - const unsigned node_index, + const uint64_t node_index, const struct ethash_params *params, const struct ethash_cache *cache) { + if (params->cache_size % sizeof(node) != 0) + return 0; + uint32_t num_parent_nodes = (uint32_t) (params->cache_size / sizeof(node)); node const *cache_nodes = (node const *) cache->mem; node const *init = &cache_nodes[node_index % num_parent_nodes]; @@ -145,23 +157,58 @@ void ethash_calculate_dag_item( } SHA3_512(ret->bytes, ret->bytes, sizeof(node)); + return 1; } -void ethash_compute_full_data( +int ethash_compute_full_data( void *mem, ethash_params const *params, ethash_cache const *cache) { - assert((params->full_size % (sizeof(uint32_t) * MIX_WORDS)) == 0); - assert((params->full_size % sizeof(node)) == 0); + + if ((params->full_size % (sizeof(uint32_t) * MIX_WORDS)) != 0) + return 0; + + if ((params->full_size % sizeof(node)) != 0) + return 0; + + node *full_nodes = mem; + + // now compute full nodes + for (uint64_t n = 0; n != (params->full_size / sizeof(node)); ++n) { + ethash_calculate_dag_item(&(full_nodes[n]), n, params, cache); + } + return 1; +} + +int ethash_compute_full_data_section( + void *mem, + ethash_params const *params, + ethash_cache const *cache, + uint64_t const start, + uint64_t const end) { + + if ((params->full_size % (sizeof(uint32_t) * MIX_WORDS)) != 0) + return 0; + + if ((params->full_size % sizeof(node)) != 0) + return 0; + + if (end >= params->full_size) + return 0; + + if (start >= end) + return 0; + node *full_nodes = mem; // now compute full nodes - for (unsigned n = 0; n != (params->full_size / sizeof(node)); ++n) { + for (uint64_t n = start; n != end; ++n) { ethash_calculate_dag_item(&(full_nodes[n]), n, params, cache); } + return 1; } -static void ethash_hash( +static int ethash_hash( ethash_return_value *ret, node const *full_nodes, ethash_cache const *cache, @@ -169,10 +216,10 @@ static void ethash_hash( const uint8_t header_hash[32], const uint64_t nonce) { - assert((params->full_size % MIX_WORDS) == 0); + if ((params->full_size % MIX_WORDS) != 0) + return 0; // 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); @@ -254,6 +301,7 @@ static void ethash_hash( 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 1; } void ethash_quick_hash( @@ -291,10 +339,10 @@ int ethash_quick_check_difficulty( return ethash_check_difficulty(return_hash, difficulty); } -void ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) { - ethash_hash(ret, (node const *) full_mem, NULL, params, previous_hash, nonce); +int ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) { + return ethash_hash(ret, (node const *) full_mem, NULL, params, previous_hash, nonce); } -void ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) { - ethash_hash(ret, NULL, cache, params, previous_hash, nonce); +int ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) { + return ethash_hash(ret, NULL, cache, params, previous_hash, nonce); }
\ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.h index ddd06e8f4..dc79b35b4 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.h @@ -30,9 +30,9 @@ typedef union node { } node; -void ethash_calculate_dag_item( +int ethash_calculate_dag_item( node *const ret, - const unsigned node_index, + const uint64_t node_index, ethash_params const *params, ethash_cache const *cache ); diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c index 359735998..6d0a40ad0 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c @@ -58,7 +58,7 @@ mkcache_bytes(PyObject *self, PyObject *args) { } ethash_params params; - params.cache_size = (size_t) cache_size; + params.cache_size = (uint64_t) cache_size; ethash_cache cache; cache.mem = malloc(cache_size); ethash_mkcache(&cache, ¶ms, (uint8_t *) seed); @@ -92,8 +92,8 @@ calc_dataset_bytes(PyObject *self, PyObject *args) { } ethash_params params; - params.cache_size = (size_t) cache_size; - params.full_size = (size_t) full_size; + params.cache_size = (uint64_t) cache_size; + params.full_size = (uint64_t) full_size; ethash_cache cache; cache.mem = (void *) cache_bytes; void *mem = malloc(params.full_size); @@ -138,8 +138,8 @@ hashimoto_light(PyObject *self, PyObject *args) { ethash_return_value out; ethash_params params; - params.cache_size = (size_t) cache_size; - params.full_size = (size_t) full_size; + params.cache_size = (uint64_t) cache_size; + params.full_size = (uint64_t) full_size; ethash_cache cache; cache.mem = (void *) cache_bytes; ethash_light(&out, &cache, ¶ms, (uint8_t *) header, nonce); @@ -175,7 +175,7 @@ hashimoto_full(PyObject *self, PyObject *args) { ethash_return_value out; ethash_params params; - params.full_size = (size_t) full_size; + params.full_size = (uint64_t) full_size; ethash_full(&out, (void *) full_bytes, ¶ms, (uint8_t *) header, nonce); return Py_BuildValue("{s:s#, s:s#}", "mix digest", out.mix_hash, 32, @@ -216,7 +216,7 @@ mine(PyObject *self, PyObject *args) { ethash_return_value out; ethash_params params; - params.full_size = (size_t) full_size; + params.full_size = (uint64_t) full_size; // TODO: Multi threading? do { diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp b/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp index 21cb251fc..8c854ecbd 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp @@ -17,7 +17,7 @@ #include <boost/test/unit_test.hpp> #include <iostream> -std::string bytesToHexString(const uint8_t *str, const size_t s) { +std::string bytesToHexString(const uint8_t *str, const uint32_t s) { std::ostringstream ret; for (int i = 0; i < s; ++i) @@ -80,9 +80,11 @@ BOOST_AUTO_TEST_CASE(ethash_params_init_genesis_check) { BOOST_AUTO_TEST_CASE(ethash_params_init_genesis_calcifide_check) { ethash_params params; - ethash_params_init(¶ms, 0); - const uint32_t expected_full_size = 1073739904; - const uint32_t expected_cache_size = 16776896; + BOOST_REQUIRE_MESSAGE(ethash_params_init(¶ms, 0), + "Params could not be initialized"); + const uint32_t + expected_full_size = 1073739904, + expected_cache_size = 16776896; BOOST_REQUIRE_MESSAGE(params.full_size == expected_full_size, "\nexpected: " << expected_cache_size << "\n" << "actual: " << params.full_size << "\n"); diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/test/test.sh b/Godeps/_workspace/src/github.com/ethereum/ethash/test/test.sh index fd3508609..71e53d978 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/test/test.sh +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/test/test.sh @@ -14,11 +14,8 @@ TEST_DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )" echo -e "\n################# Testing JS ##################" # TODO: Use mocha and real testing tools instead of rolling our own cd $TEST_DIR/../js -if [ -x "$(which nodejs)" ] ; then - nodejs test.js -fi -if [ -x "$(which node)" ] ; then - node test.js +if [ -x "$(which npm)" ] ; then + npm test fi echo -e "\n################# Testing C ##################" |