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Portal State Proof Verification with Tests (#1951) 

* Initial implementation of account and storage proof verification for the portal state network.

* Completed initial state proof verification loop test.

* Completed proof verification tests.

* Minor updates based on PR feedback and comments.

* Add state proof verification test to test runner.
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web3-developer 2023-12-21 17:05:53 +08:00 committed by GitHub
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commit 32e1f94d78
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8 changed files with 483 additions and 2 deletions
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30
fluffy/network/state/experimental/state_proof_generation.nim Normal file
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@ -0,0 +1,30 @@
# Nimbus
# Copyright (c) 2023 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [].}
import
stint,
eth/[common, trie],
./state_proof_verification
type
AccountState* = HexaryTrie
StorageState* = HexaryTrie
proc generateAccountProof*(
state: AccountState,
address: EthAddress): AccountProof {.raises: [RlpError].} =
let key = keccakHash(address).data
state.getBranch(key).AccountProof
proc generateStorageProof*(
state: StorageState,
slotKey: UInt256): StorageProof {.raises: [RlpError].} =
let key = keccakHash(toBytesBE(slotKey)).data
state.getBranch(key).StorageProof

69
fluffy/network/state/experimental/state_proof_verification.nim Normal file
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@ -0,0 +1,69 @@
# Nimbus
# Copyright (c) 2023 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [].}
import
std/sequtils,
stint,
eth/[common, rlp, trie/hexary_proof_verification],
stew/results
export results
type
MptProof = seq[seq[byte]]
AccountProof* = distinct MptProof
StorageProof* = distinct MptProof
proc verifyAccount*(
trustedStateRoot: KeccakHash,
address: EthAddress,
account: Account,
proof: AccountProof): Result[void, string] =
let key = toSeq(keccakHash(address).data)
let value = rlp.encode(account)
let proofResult = verifyMptProof(proof.MptProof, trustedStateRoot, key, value)
case proofResult.kind
of ValidProof:
ok()
of MissingKey:
# For an account that doesn't exist yet, which is fine.
ok()
of InvalidProof:
err(proofResult.errorMsg)
proc verifyContractStorageSlot*(
trustedStorageRoot: KeccakHash,
slotKey: UInt256,
slotValue: UInt256,
proof: StorageProof): Result[void, string] =
let key = toSeq(keccakHash(toBytesBE(slotKey)).data)
let value = rlp.encode(slotValue)
let proofResult = verifyMptProof(proof.MptProof, trustedStorageRoot, key, value)
case proofResult.kind
of ValidProof:
ok()
of MissingKey:
# This is for a slot that doesn't have anything stored at it, but that's fine.
ok()
of InvalidProof:
err(proofResult.errorMsg)
func verifyContractBytecode*(
trustedCodeHash: KeccakHash,
bytecode: openArray[byte]): Result[void, string] =
if trustedCodeHash == keccakHash(bytecode):
ok()
else:
err("hash of bytecode doesn't match the expected code hash")

1
fluffy/tests/all_fluffy_tests.nim
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@ -11,6 +11,7 @@ import
./test_portal_wire_protocol,
./test_state_distance,
./test_state_network,
./test_state_proof_verification,
./test_accumulator,
./test_history_network,
./test_content_db,

56
fluffy/tests/custom_genesis/berlin2000.json Normal file
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@ -0,0 +1,56 @@
{
"config": {
"chainId": 1,
"homesteadBlock": 0,
"daoForkSupport": true,
"eip150Block": 0,
"eip155Block": 0,
"eip158Block": 0,
"byzantiumBlock": 0,
"constantinopleBlock": 0,
"petersburgBlock": 0,
"istanbulBlock": 0,
"berlinBlock": 2000
},
"genesis": {
"nonce": "0x0",
"timestamp": "0x0",
"extraData": "0x00",
"gasLimit": "0x5f5e100",
"difficulty": "0x20000",
"mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"coinbase": "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
"alloc": {
"0000000000000000000000000000000000000100": {
"code": "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0160005500",
"balance": "0xba1a9ce0ba1a9ce"
},
"0000000000000000000000000000000000000101": {
"code": "0x60047fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0160005500",
"balance": "0xba1a9ce0ba1a9ce"
},
"0000000000000000000000000000000000000102": {
"code": "0x60017fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0160005500",
"balance": "0xba1a9ce0ba1a9ce"
},
"0000000000000000000000000000000000000103": {
"code": "0x600060000160005500",
"balance": "0xba1a9ce0ba1a9ce"
},
"0000000000000000000000000000000000000104": {
"code": "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff60010160005500",
"balance": "0xba1a9ce0ba1a9ce"
},
"a94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
"balance": "0xba1a9ce0ba1a9ce"
},
"cccccccccccccccccccccccccccccccccccccccc": {
"code": "0x600060006000600060006004356101000162fffffff100",
"balance": "0xba1a9ce0ba1a9ce"
}
},
"number": "0x0",
"gasUsed": "0x0",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
}
}

46
fluffy/tests/custom_genesis/chainid1.json Normal file
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@ -0,0 +1,46 @@
{
"config": {
"chainId": 1,
"homesteadBlock": 0,
"eip150Block": 0,
"eip158Block": 0,
"londonBlock": 1337
},
"genesis": {
"coinbase": "0x0000000000000000000000000000000000000000",
"difficulty": "0x20000",
"extraData": "0x0000000000000000000000000000000000000000000000000000000000000000658bdf435d810c91414ec09147daa6db624063790000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"gasLimit": "0x2fefd8",
"nonce": "0x0000000000000000",
"timestamp": "0x1234",
"alloc": {
"cf49fda3be353c69b41ed96333cd24302da4556f": {
"balance": "0x123450000000000000000"
},
"0161e041aad467a890839d5b08b138c1e6373072": {
"balance": "0x123450000000000000000"
},
"87da6a8c6e9eff15d703fc2773e32f6af8dbe301": {
"balance": "0x123450000000000000000"
},
"b97de4b8c857e4f6bc354f226dc3249aaee49209": {
"balance": "0x123450000000000000000"
},
"c5065c9eeebe6df2c2284d046bfc906501846c51": {
"balance": "0x123450000000000000000"
},
"0000000000000000000000000000000000000314": {
"balance": "0x0",
"code": "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",
"storage": {
"0x0000000000000000000000000000000000000000000000000000000000000000": "0x1234",
"0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9": "0x01"
}
},
"0000000000000000000000000000000000000315": {
"balance": "0x9999999999999999999999999999999",
"code": "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"
}
}
}
}

66
fluffy/tests/custom_genesis/merge.json Normal file
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@ -0,0 +1,66 @@
{
"config": {
"chainId": 7,
"homesteadBlock": 0,
"eip150Block": 0,
"eip150Hash": "0x5de1ee4135274003348e80b788e5afa4b18b18d320a5622218d5c493fedf5689",
"eip155Block": 0,
"eip158Block": 0,
"byzantiumBlock": 0,
"constantinopleBlock": 0,
"petersburgBlock": 0,
"istanbulBlock": 0,
"muirGlacierBlock": 0,
"berlinBlock": 0,
"londonBlock": 0,
"clique": {
"epoch": 3000,
"period": 1
}
},
"genesis": {
"coinbase": "0x0000000000000000000000000000000000000000",
"difficulty": "0x30000",
"extraData": "0x0000000000000000000000000000000000000000000000000000000000000000658bdf435d810c91414ec09147daa6db624063790000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"gasLimit": "0x2fefd8",
"nonce": "0x0000000000000000",
"timestamp": "0x1234",
"alloc": {
"cf49fda3be353c69b41ed96333cd24302da4556f": {
"balance": "0x123450000000000000000"
},
"0161e041aad467a890839d5b08b138c1e6373072": {
"balance": "0x123450000000000000000"
},
"87da6a8c6e9eff15d703fc2773e32f6af8dbe301": {
"balance": "0x123450000000000000000"
},
"b97de4b8c857e4f6bc354f226dc3249aaee49209": {
"balance": "0x123450000000000000000"
},
"c5065c9eeebe6df2c2284d046bfc906501846c51": {
"balance": "0x123450000000000000000"
},
"0000000000000000000000000000000000000314": {
"balance": "0x0",
"code": "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",
"storage": {
"0x0000000000000000000000000000000000000000000000000000000000000000": "0x1234",
"0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9": "0x01"
}
},
"0000000000000000000000000000000000000315": {
"balance": "0x9999999999999999999999999999999",
"code": "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"
},
"0000000000000000000000000000000000000316": {
"balance": "0x0",
"code": "0x444355"
},
"0000000000000000000000000000000000000317": {
"balance": "0x0",
"code": "0x600160003555"
}
}
}
}

45
fluffy/tests/test_helpers.nim
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@ -7,10 +7,14 @@
import
stew/shims/net,
eth/[keys, rlp],
eth/[common, keys, rlp, trie, trie/db],
eth/p2p/discoveryv5/[enr, node, routing_table],
eth/p2p/discoveryv5/protocol as discv5_protocol,
../network/history/[accumulator, history_content]
../network/history/[accumulator, history_content],
../network/state/experimental/state_proof_generation,
../../nimbus/db/core_db,
../../nimbus/common/[chain_config],
../database/content_db
proc localAddress*(port: int): Address =
Address(ip: parseIpAddress("127.0.0.1"), port: Port(port))
@ -108,3 +112,40 @@ func buildHeadersWithProof*(
? buildHeaderWithProof(header, epochAccumulators))
ok(headersWithProof)
proc getGenesisAlloc*(filePath: string): GenesisAlloc =
var cn: NetworkParams
if not loadNetworkParams(filePath, cn):
quit(1)
cn.genesis.alloc
proc toState*(alloc: GenesisAlloc):
(AccountState, Table[EthAddress, StorageState]) {.raises: [RlpError].} =
var accountTrie = initHexaryTrie(newMemoryDB())
var storageStates = initTable[EthAddress, StorageState]()
for address, genAccount in alloc:
var storageRoot = EMPTY_ROOT_HASH
var codeHash = EMPTY_CODE_HASH
if genAccount.code.len() > 0:
var storageTrie = initHexaryTrie(newMemoryDB())
for slotKey, slotValue in genAccount.storage:
let key = keccakHash(toBytesBE(slotKey)).data
let value = rlp.encode(slotValue)
storageTrie.put(key, value)
storageStates[address] = storageTrie.StorageState
storageRoot = storageTrie.rootHash()
codeHash = keccakHash(genAccount.code)
let account = Account(
nonce: genAccount.nonce,
balance: genAccount.balance,
storageRoot: storageRoot,
codeHash: codeHash)
let key = keccakHash(address).data
let value = rlp.encode(account)
accountTrie.put(key, value)
(accountTrie.AccountState, storageStates)

172
fluffy/tests/test_state_proof_verification.nim Normal file
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@ -0,0 +1,172 @@
# Nimbus
# Copyright (c) 2023 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [].}
import
std/os,
unittest2,
stew/results,
eth/trie,
../../nimbus/db/core_db,
../../nimbus/common/[chain_config],
../network/state/experimental/[state_proof_generation, state_proof_verification],
./test_helpers
proc checkValidProofsForExistingLeafs(
genAccounts: GenesisAlloc,
accountState: AccountState,
storageStates: Table[EthAddress, StorageState]) {.raises: [KeyError, RlpError].} =
for address, account in genAccounts:
var acc = newAccount(account.nonce, account.balance)
acc.codeHash = keccakHash(account.code)
let codeResult = verifyContractBytecode(acc.codeHash, account.code)
check codeResult.isOk()
if account.code.len() > 0:
let storageState = storageStates[address]
acc.storageRoot = storageState.rootHash()
for slotKey, slotValue in account.storage :
let storageProof = storageState.generateStorageProof(slotKey)
let proofResult = verifyContractStorageSlot(acc.storageRoot, slotKey, slotValue, storageProof)
check proofResult.isOk()
let accountProof = accountState.generateAccountProof(address)
let proofResult = verifyAccount(accountState.rootHash(), address, acc, accountProof)
check proofResult.isOk()
proc checkValidProofsForMissingLeafs(
genAccounts: GenesisAlloc,
accountState: var AccountState,
storageStates: Table[EthAddress, StorageState]) {.raises: [KeyError, RlpError].} =
var remainingAccounts = genAccounts.len()
for address, account in genAccounts:
if (remainingAccounts == 1):
break # can't generate proofs from an empty state
var acc = newAccount(account.nonce, account.balance)
acc.codeHash = keccakHash(account.code)
if account.code.len() > 0:
var storageState = storageStates[address]
acc.storageRoot = storageState.rootHash()
var remainingSlots = account.storage.len()
for slotKey, slotValue in account.storage:
if (remainingSlots == 1):
break # can't generate proofs from an empty state
storageState.del(keccakHash(toBytesBE(slotKey)).data) # delete the slot from the state
dec remainingSlots
let storageProof = storageState.generateStorageProof(slotKey)
let proofResult = verifyContractStorageSlot(acc.storageRoot, slotKey, slotValue, storageProof)
check proofResult.isOk()
accountState.del(keccakHash(address).data) # delete the account from the state
dec remainingAccounts
let accountProof = accountState.generateAccountProof(address)
let proofResult = verifyAccount(accountState.rootHash(), address, acc, accountProof)
check proofResult.isOk()
proc checkInvalidProofsWithBadStateRoot(
genAccounts: GenesisAlloc,
accountState: AccountState,
storageStates: Table[EthAddress, StorageState]) {.raises: [KeyError, RlpError].} =
let badHash = toDigest("2cb1b80b285d09e0570fdbbb808e1d14e4ac53e36dcd95dbc268deec2915b3e7")
for address, account in genAccounts:
var acc = newAccount(account.nonce, account.balance)
acc.codeHash = keccakHash(account.code)
let codeResult = verifyContractBytecode(badHash, account.code)
check codeResult.isErr()
if account.code.len() > 0:
var storageState = storageStates[address]
acc.storageRoot = storageState.rootHash()
var remainingSlots = account.storage.len()
for slotKey, slotValue in account.storage:
let storageProof = storageState.generateStorageProof(slotKey)
let proofResult = verifyContractStorageSlot(badHash, slotKey, slotValue, storageProof)
check:
proofResult.isErr()
proofResult.error() == "missing expected node"
let accountProof = accountState.generateAccountProof(address)
let proofResult = verifyAccount(badHash, address, acc, accountProof)
check:
proofResult.isErr()
proofResult.error() == "missing expected node"
proc checkInvalidProofsWithBadValue(
genAccounts: GenesisAlloc,
accountState: AccountState,
storageStates: Table[EthAddress, StorageState]) {.raises: [KeyError, RlpError].} =
for address, account in genAccounts:
var acc = newAccount(account.nonce, account.balance)
acc.codeHash = keccakHash(account.code)
let codeResult = verifyContractBytecode(acc.codeHash, @[1u8, 2, 3]) # bad code value
check codeResult.isErr()
if account.code.len() > 0:
var storageState = storageStates[address]
acc.storageRoot = storageState.rootHash()
var remainingSlots = account.storage.len()
for slotKey, slotValue in account.storage:
let storageProof = storageState.generateStorageProof(slotKey)
let badSlotValue = slotValue + 1 # bad slot value
let proofResult = verifyContractStorageSlot(acc.storageRoot, slotKey, badSlotValue, storageProof)
check:
proofResult.isErr()
proofResult.error() == "proof does not contain expected value"
let accountProof = accountState.generateAccountProof(address)
inc acc.balance # bad account balance
let proofResult = verifyAccount(accountState.rootHash(), address, acc, accountProof)
check:
proofResult.isErr()
proofResult.error() == "proof does not contain expected value"
suite "State Proof Verification Tests":
let genesisFiles = ["berlin2000.json", "chainid1.json", "chainid7.json", "merge.json"]
test "Valid proofs for existing leafs":
for file in genesisFiles:
let accounts = getGenesisAlloc("fluffy" / "tests" / "custom_genesis" / file)
let state = accounts.toState()
checkValidProofsForExistingLeafs(accounts, state[0], state[1])
test "Valid proofs for missing leafs":
for file in genesisFiles:
let accounts = getGenesisAlloc("fluffy" / "tests" / "custom_genesis" / file)
var state = accounts.toState()
checkValidProofsForMissingLeafs(accounts, state[0], state[1])
test "Invalid proofs with bad state root":
for file in genesisFiles:
let accounts = getGenesisAlloc("fluffy" / "tests" / "custom_genesis" / file)
var state = accounts.toState()
checkInvalidProofsWithBadStateRoot(accounts, state[0], state[1])
test "Invalid proofs with bad value":
for file in genesisFiles:
let accounts = getGenesisAlloc("fluffy" / "tests" / "custom_genesis" / file)
var state = accounts.toState()
checkInvalidProofsWithBadValue(accounts, state[0], state[1])