2019-02-26 07:04:12 +00:00
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import eth/trie/db, eth/[trie, rlp, common], nimcrypto
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2018-12-03 10:54:19 +00:00
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2019-02-26 11:26:38 +00:00
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export nimcrypto.`$`
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2018-12-03 10:54:19 +00:00
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proc calcRootHash[T](items: openArray[T]): Hash256 =
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var tr = initHexaryTrie(newMemoryDB())
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for i, t in items:
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tr.put(rlp.encode(i).toRange, rlp.encode(t).toRange)
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return tr.rootHash
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template calcTxRoot*(transactions: openArray[Transaction]): Hash256 =
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calcRootHash(transactions)
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template calcReceiptRoot*(receipts: openArray[Receipt]): Hash256 =
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calcRootHash(receipts)
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2019-02-26 07:04:12 +00:00
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2019-03-07 15:53:09 +00:00
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func keccakHash*(value: openarray[byte]): Hash256 {.inline.} =
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2019-02-26 07:04:12 +00:00
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keccak256.digest value
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func generateAddress*(address: EthAddress, nonce: AccountNonce): EthAddress =
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2019-03-07 15:53:09 +00:00
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result[0..19] = keccakHash(rlp.encodeList(address, nonce)).data.toOpenArray(12, 31)
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2019-02-26 07:04:12 +00:00
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func hash*(b: BlockHeader): Hash256 {.inline.} =
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rlpHash(b)
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