nimbus-eth2/tests/test_zero_signature.nim

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# beacon_chain
# Copyright (c) 2018-2021 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.
{.used.}
import
std/strutils,
unittest2,
../beacon_chain/spec/crypto,
../beacon_chain/spec/datatypes/base,
../beacon_chain/ssz
# Sanity checks to make sure all the workarounds introduced
# to deal with https://github.com/status-im/nimbus-eth2/issues/374
# and https://github.com/ethereum/eth2.0-specs/issues/1396
# don't blow up.
suite "Zero signature sanity checks":
# See:
# - https://github.com/ethereum/eth2.0-specs/issues/1713
# - https://github.com/status-im/nimbus-eth2/pull/2733
test "SSZ serialization roundtrip of SignedBeaconBlockHeader":
# For the Genesis block only
# - https://github.com/status-im/nimbus-eth2/issues/396
performance fixes (#2259) * performance fixes * don't mark tree cache as dirty on read-only List accesses * store only blob in memory for keys and signatures, parse blob lazily * compare public keys by blob instead of parsing / converting to raw * compare Eth2Digest using non-constant-time comparison * avoid some unnecessary validator copying This branch will in particular speed up deposit processing which has been slowing down block replay. Pre (mainnet, 1600 blocks): ``` All time are ms Average, StdDev, Min, Max, Samples, Test Validation is turned off meaning that no BLS operations are performed 3450.269, 0.000, 3450.269, 3450.269, 1, Initialize DB 0.417, 0.822, 0.036, 21.098, 1400, Load block from database 16.521, 0.000, 16.521, 16.521, 1, Load state from database 27.906, 50.846, 8.104, 1507.633, 1350, Apply block 52.617, 37.029, 20.640, 135.938, 50, Apply epoch block ``` Post: ``` 3502.715, 0.000, 3502.715, 3502.715, 1, Initialize DB 0.080, 0.560, 0.035, 21.015, 1400, Load block from database 17.595, 0.000, 17.595, 17.595, 1, Load state from database 15.706, 11.028, 8.300, 107.537, 1350, Apply block 33.217, 12.622, 17.331, 60.580, 50, Apply epoch block ``` * more perf fixes * load EpochRef cache into StateCache more aggressively * point out security concern with public key cache * reuse proposer index from state when processing block * avoid genericAssign in a few more places * don't parse key when signature is unparseable * fix `==` overload for Eth2Digest * preallocate validator list when getting active validators * speed up proposer index calculation a little bit * reuse cache when replaying blocks in ncli_db * avoid a few more copying loops ``` Average, StdDev, Min, Max, Samples, Test Validation is turned off meaning that no BLS operations are performed 3279.158, 0.000, 3279.158, 3279.158, 1, Initialize DB 0.072, 0.357, 0.035, 13.400, 1400, Load block from database 17.295, 0.000, 17.295, 17.295, 1, Load state from database 5.918, 9.896, 0.198, 98.028, 1350, Apply block 15.888, 10.951, 7.902, 39.535, 50, Apply epoch block 0.000, 0.000, 0.000, 0.000, 0, Database block store ``` * clear full balance cache before processing rewards and penalties ``` All time are ms Average, StdDev, Min, Max, Samples, Test Validation is turned off meaning that no BLS operations are performed 3947.901, 0.000, 3947.901, 3947.901, 1, Initialize DB 0.124, 0.506, 0.026, 202.370, 363345, Load block from database 97.614, 0.000, 97.614, 97.614, 1, Load state from database 0.186, 0.188, 0.012, 99.561, 357262, Advance slot, non-epoch 14.161, 5.966, 1.099, 395.511, 11524, Advance slot, epoch 1.372, 4.170, 0.017, 276.401, 363345, Apply block, no slot processing 0.000, 0.000, 0.000, 0.000, 0, Database block store ```
2021-01-25 12:04:18 +00:00
let defaultBlockHeader = SignedBeaconBlockHeader()
check:
block:
var allZeros = true
for val in defaultBlockHeader.signature.blob:
allZeros = allZeros and val == 0
allZeros
let sszDefaultBlockHeader = SSZ.encode(defaultBlockHeader)
2019-12-16 18:08:50 +00:00
let deserBlockHeader =
SSZ.decode(sszDefaultBlockHeader, SignedBeaconBlockHeader)
check(defaultBlockHeader == deserBlockHeader)
test "default initialization of signatures":
block:
let sig = default(CookedSig)
doAssert sig.toValidatorSig().toHex() == "c" & '0'.repeat(191)
block:
let sig = AggregateSignature()
doAssert sig.toHex() == "c" & '0'.repeat(191)
block:
let sig = ValidatorSig()
doAssert sig.toHex() == '0'.repeat(192)
test "Zero signatures cannot be loaded into a BLS signature object":
let zeroSig = ValidatorSig()
let s = zeroSig.load()
check: s.isNone()