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function verifyBlock(data){ | |
const block = JSON.parse(data); | |
signer = block.signer; | |
signature = block.signature; | |
v = cat.GeneratorUtils.uintToBuffer(block.version, 1) //version:8 | |
n = cat.GeneratorUtils.uintToBuffer(block.networkType, 1) //network:8 | |
t = cat.GeneratorUtils.uintToBuffer(block.type, 2) //type:16 | |
h = cat.GeneratorUtils.uint64ToBuffer([block.height.lower,block.height.higher]) //height | |
ts = cat.GeneratorUtils.uint64ToBuffer([block.timestamp.lower,block.timestamp.higher]) //timestamp | |
df = cat.GeneratorUtils.uint64ToBuffer([block.difficulty.lower,block.difficulty.higher]) //difficulty | |
ph = nem.Convert.hexToUint8(block.previousBlockHash) //prehash | |
th = nem.Convert.hexToUint8(block.blockTransactionsHash) //txhash | |
rh = nem.Convert.hexToUint8(block.blockReceiptsHash) //rcpthash | |
sh = nem.Convert.hexToUint8(block.stateHash) //stathash | |
bp = nem.Convert.hexToUint8(block.beneficiaryPublicKey.publicKey) //benepubkey | |
fm = cat.GeneratorUtils.uintToBuffer(block.feeMultiplier, 4) // feeMultiplier:32 | |
const buffer = Array.from(v) | |
.concat(Array.from(n)) | |
.concat(Array.from(t)) | |
.concat(Array.from(h)) | |
.concat(Array.from(ts)) | |
.concat(Array.from(df)) | |
.concat(Array.from(ph)) | |
.concat(Array.from(th)) | |
.concat(Array.from(rh)) | |
.concat(Array.from(sh)) | |
.concat(Array.from(bp)) | |
.concat(Array.from(fm)); | |
const hex = nem.Convert.uint8ToHex(buffer); | |
var hasher = jssha3.sha3_256.create(); | |
hasher.update(nem.Convert.hexToUint8(signature)); //signature | |
hasher.update(nem.Convert.hexToUint8(signer.publicKey)); //publicKey | |
const hash = hasher.update(buffer).hex().toUpperCase(); | |
console.log("calc hash:" + hash); | |
console.log("block hash:" + block.hash); | |
} |
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