Commit Graph

111 Commits

Author SHA1 Message Date
Dustin Brody 707fcd99cb remove unused beacon chain spec and test code 2021-02-02 14:56:38 +02:00
Jacek Sieka 5713a3ce4c
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 13:04:18 +01:00
Jacek Sieka e7f2735271
fix broken metrics during replay (#2090)
* move metrics out of state transition
* add validator count metric
* remove expensive beacon_current_validators, beacon_previous_validators
metrics (they should be reimplemented with cache), add cheap
beacon_active_validators to approximate
* remove unused validator count metrics
* tidy imports/defects
2020-11-27 23:16:13 +01:00
tersec 271df8b604
bump 1.0.0rc-0 spec refs to 1.0.0 (#1974) 2020-11-09 14:18:55 +00:00
tersec 1994ffe5a0
update 130+ spec references from v0.12.3 to v1.0.0-rc1 (#1854) 2020-10-12 08:59:24 +00:00
tersec 6398a43cc1
update 120+ beacon_chain and validator spec refs from v0.12.2 to v0.12.3 (#1740) 2020-09-24 19:04:10 +02:00
Mamy Ratsimbazafy ea4ec6a785
Upgrade blst (#1682)
* Bump BLST

* Test for https://github.com/supranational/blst/issues/22 regression

* Use SHA256 from BLST + bump nim-blscurve to reenable fno-tree-vectorize

* SHA256 on non-blst platforms import fixes

* import fixes again

* can't prefix with nimcrypto

* address review comment [skip ci]

* {.noInit.} on the digests
2020-09-18 16:55:55 +02:00
Jacek Sieka 2081c4f505
avoid unnecessary seq allocations (#1573)
"sigh"
2020-08-27 08:32:51 +02:00
tersec dad3dd5809
update 111 v0.12.1 beacon chain spec refs to v0.12.2 (#1380) 2020-07-27 18:49:46 +02:00
Jacek Sieka 5c25d23ef1 eth2hash -> eth2digest
hash in nim is the insecure hash-map helper - might as well use `digest`
consistently to mark the difference
2020-06-16 13:30:21 +00:00
Dustin Brody 1d1e90adf4 Update 36 spec refs from 0.11.x to 0.12.1 2020-06-12 19:41:03 +00:00
Dustin Brody 3fa2f70853 update all remaining beacon chain spec references from v0.11.1 and v0.11.2 to v0.11.3 2020-05-20 08:48:18 +00:00
Jacek Sieka c74ba5c0c6
ssz: move ref support outside (#943)
* ssz: move ref support outside

Instead of allocating ref's inside SSZ, move it to separate helper:

* makes `ref` allocations explicit
* less magic inside SSZ
* `ref` in nim generally means reference whereas SSZ was loading as
value - if a type indeed used references it would get copies instead of
references to a single value on roundtrip which is unexpected

TODO: EF tests would benefit from some refactoring since they all do the
same thing practically..

Co-authored-by: Zahary Karadjov <zahary@gmail.com>
2020-04-29 22:12:07 +02:00
Viktor Kirilov 0079242457 again exported the right overloads for serializing hashes properly to json (and not as byte arrays) and updating nim-eth 2020-04-23 20:46:13 +03:00
Viktor Kirilov 4c66999a43 removing the json serialization change - fails to compile with -d:testnet_servers_image and LOG_LEVEL=TRACE and isn't worth the time at the moment 2020-04-23 20:46:13 +03:00
Viktor Kirilov 1575ded589 exported the right overloads for serializing hashes properly to json (and not as byte arrays) 2020-04-23 20:46:13 +03:00
Jacek Sieka afa08c8e3c
crypto: cleanup (#882)
* crypto: cleanup

* fix several Defect-on-user-input
* make crypto interface more similar to secp
* use `crypto.nim` in all of nbc

* digest: raises

* fix

* vendor
2020-04-11 10:51:07 +02:00
tersec 31bf8fa408
remove all but one UnusedImport warning (#881)
* remove all but one UnusedImport warning

* bump a few more spec version references from v0.10.1 to v0.11.1

* more v0.10.1 spec reference updates/removals

* yet more v0.10.1 spec reference updates
2020-04-10 16:06:24 +02:00
Jacek Sieka 521b0ed6ba
Clean 20200205 (#729)
* beacon node code cleanup
* rudimentary error checking on mainnet monitor
* start client even when sending deposit
* work around missing block number exception
* connect to testnet with web3 url
* pretty-print digests in json
2020-02-07 08:13:38 +01:00
Mamy Ratsimbazafy 1ba2cebd85 v0.10.1 (test vectors + unchanged parts) (#696)
* update to 0.10.1

* SSZ Generic and nbench uses the v0.10.1 fixtures

* Tests + spec links: v0.10.0 -> v0.10.1

* Add v0.10.1 TODO in get_latest_attesting_balance (forkchoice)

* SSZ Bytes are now ByteList

* Remove nim-result submodules that was leftover/added by mistake in the branch
2020-01-27 10:56:32 +00:00
Dustin Brody 50f633209c mark a couple dozen 0.9.2/0.9.4 spec locations as still consistent with 0.10.0; no functional changes 2020-01-22 13:03:45 +00:00
Jacek Sieka 2a67ac3c05 trie -> kv store
* simplify data storage to key-value, tries are not relevant for NBC
* locked-down version of lmdb dependency
* easier to build / maintain on various platforms
2020-01-20 13:39:37 +00:00
Dustin Brody 46de726e3d mark all compatible 0.9.3 functions and data structures as 0.9.4 2019-12-20 17:24:42 +00:00
Dustin Brody 1610981be6 mark several more spec-referencing code/data parts as 0.9.3 2019-12-17 16:51:46 +00:00
Jacek Sieka 2a728d9468 fix stack overflow in isAncestor recursion 2019-11-28 17:36:07 +02:00
Zahary Karadjov 8de4d38e4e More tracing 2019-11-26 02:45:25 +02:00
Dustin Brody 1494bcc262 replace links to Apache and MIT licenses with HTTPS versions (#592) 2019-11-25 16:30:02 +01:00
Dustin Brody 41fa377638 mark all non-changed 0.9.1 items as 0.9.2 (#576) 2019-11-22 09:29:04 +01:00
Dustin Brody c0f009908c
re-enable test_interop based on zcli with 0.9.1 specs and update initialize_beacon_state_from_eth1(...) to 0.9.1 (#569)
* re-enable test_interop based on zcli with 0.9.1 specs and update initialize_beacon_state_from_eth1(...) to 0.9.1

* switch many procs to funcs

* fix import os.nim instead; ospaths is deprecated [Deprecated] warnings
2019-11-21 09:15:10 +00:00
Dustin Brody 568fa1dcb9 mark functions, constants, and data structures unchanged by 0.9.1 as such 2019-11-11 10:25:57 +00:00
Dustin Brody 63e621c27d
initial 0.9.0 spec sync (#509)
* rename compute_epoch_of_slot(...) to compute_epoch_at_slot(...)

* remove some unnecessary imports; remove some crosslink-related code and tests; complete renaming of compute_epoch_of_slot(...) to compute_epoch_at_slot(...)

* rm more transfer-related code and tests; rm more unnecessary strutils imports

* rm remaining unused imports

* remove useless get_empty_per_epoch_cache(...)/compute_start_slot_of_epoch(...) calls

* rename compute_start_slot_of_epoch(...) to compute_start_slot_at_epoch(...)

* rename ACTIVATION_EXIT_DELAY to MAX_SEED_LOOKAHEAD

* update domain types to 0.9.0

* mark AttesterSlashing, IndexedAttestation, AttestationDataAndCustodyBit, DepositData, BeaconBlockHeader, Fork, integer_squareroot(...), and process_voluntary_exit(...) as 0.9.0

* mark increase_balance(...), decrease_balance(...), get_block_root(...), CheckPoint, Deposit, PendingAttestation, HistoricalBatch, is_active_validator(...), and is_slashable_attestation_data(...) as 0.9.0

* mark compute_activation_exit_epoch(...), bls_verify(...), Validator, get_active_validator_indices(...), get_current_epoch(...), get_total_active_balance(...), and get_previous_epoch(...) as 0.9.0

* mark get_block_root_at_slot(...), ProposerSlashing, get_domain(...), VoluntaryExit, mainnet preset Gwei values, minimal preset max operations, process_block_header(...), and is_slashable_validator(...) as 0.9.0

* mark makeWithdrawalCredentials(...), get_validator_churn_limit(...), get_total_balance(...), is_valid_indexed_attestation(...), bls_aggregate_pubkeys(...), initial genesis value/constants, Attestation, get_randao_mix(...), mainnet preset max operations per block constants, minimal preset Gwei values and time parameters, process_eth1_data(...), get_shuffled_seq(...), compute_committee(...), and process_slots(...) as 0.9.0; partially update get_indexed_attestation(...) to 0.9.0 by removing crosslink refs and associated tests

* mark initiate_validator_exit(...), process_registry_updates(...), BeaconBlock, Eth1Data, compute_domain(...), process_randao(...), process_attester_slashing(...), get_base_reward(...), and process_slot(...) as 0.9.0
2019-10-30 19:41:19 +00:00
Dustin Brody 700e7d921b
update to beacon chain phase 0 spec version 0.8.4; no substantive changes (#494) 2019-10-24 13:36:36 +00:00
Jacek Sieka 9cfbdb5e16 more interop fixes
* fix eth1 interop block hash
* update initialize_beacon_state_from_eth1 to 0.8.3
2019-09-02 22:14:18 +03:00
Jacek Sieka 7b73b40bab interop updates
* add interop launcher scripts
* stick validator_keygen into beacon_node
* fix lmd ghost slot number on missing block
* use mocked eth1data when producing blocks
* use bls public key method for withdrawal credentials
* fix deposit domain
* prefer lowercase for a bunch of toHex
* build simulation binary in data folder to avoid data types confusion
2019-09-02 22:14:18 +03:00
Mamy Ratsimbazafy ca4f29caca v0.8.1 tests refactor (#326)
* Introduce new mocking proc to replace:
- makeFakeValidatorPrivKey
- hackPrivKey
- getNextBeaconProposerIndex
- addBlock
- makeBlock

* Add comments on datastructure unsynced with the spec

* Add merkle tree constructor and initial mocking for deposits (missing merkle proofs)

* [Mock] Implement sparse merkle tree and merkle proof builder

* [Mocking] Genesis deposits

* Add compact_committees_roots init + mock genesis state

* [Tests] Add first deposit test using the new mocking procedures

* [Tests -deposits] add at and over 32 ETH deposit tests

* [Tests - deposits] Add test for validator top-up

* [Tests -deposits] Mention the TODO to test for invalid conditions

* [Tests] Add stub to test "is_valid_genesis_state"

* [Merkle proofs] Implement round-trip checks

* Deactivate roundtrips test

* SSZ - use EF convention for hash_tree_root / hashTreeRoot

* [Tests - Attestation] Attestation mocking + initial test

* Add mocking + 3 new tests for valid attestations + mention future invalid attestation tests

* Add crosslinks test (1 failing to attestations in block being duplicated in state transition)

* Single attestation crosslink test - workaround https://github.com/status-im/nim-beacon-chain/issues/361

* Add test for failed crosslink penalty

* Rebase fixes + add refactored tests to test suite

* justif-finalization helpers first batch

* Add 234 finalization tests

* Fix justif test, Rule I 234 finalization does not happen with sufficient support.
(Also unittest check template does not fail properly in some cases)

* Add tests for all finalization rules

* Properly delete nim-byteutils following c91727e7e5 (diff-7c3613dba5171cb6027c67835dd3b9d4)

* use digest helper for deposit root
2019-08-28 12:07:00 +00:00
Dustin Brody 8665efbbd1 bump beacon chain versions to 0.8.3, which has no relevant changes in this regard (#358) 2019-08-26 11:09:47 +02:00
Dustin Brody 6704749eb0 mark unchanged 0.8.1 as 0.8.2 spec aspects (#336) 2019-08-09 14:08:00 +02:00
Zahary Karadjov 398ea55801
Implement the latest SSZ specification and integrate the official SSZ test suite 2019-08-05 03:18:48 +03:00
Dustin Brody 712038fe21
mark applicable 0.8.0-compliant functions and data structures as 0.8.1 and update a couple of other comments (#321) 2019-07-15 12:57:18 +00:00
Dustin Brody 68be98cafa
More 0.8.0 updates (#311)
* replace BeaconState.finalized_{epoch,root} with BeaconState.finalized_checkpoint; rename get_delayed_activation_exit_epoch(...) to compute_activation_exit_epoch(...) and mark as 0.8.0; update get_churn_limit(...)/get_validator_churn_limit(...) to 0.8.0; update process_registry_updates(...) to 0.8.0

* update process_crosslinks(...) to 0.8.0; mark compute_start_slot_of_epoch(...) and get_committee_count(...) as 0.8.0

* mark Fork, is_slashable_validator(...), and get_beacon_proposer_index(...) as 0.8.0

* rename LATEST_SLASHED_EXIT_LENGTH to EPOCHS_PER_SLASHINGS_VECTOR; update process_slashings(...) to 0.8.0; remove pointless type conversion warning in get_previous_epoch(...)

* convert remaining references to finalized_epoch to finalized_checkpoint.epoch

* update slash_validator(...) to 0.8.0; mark inital value, Gwei, and time constants as 0.8.0; mark hash(...) and processBlockHeader(...) as 0.8.0

* rename WHISTLEBLOWING_REWARD_QUOTIENT to WHISTLEBLOWER_REWARD_QUOTIENT; rename LATEST_ACTIVE_INDEX_ROOTS_LENGTH to EPOCHS_PER_HISTORICAL_VECTOR (randao will also get merged into this); remove get_active_index_root(...); mark time parameter, signature domain types, and max operations per block constants as 0.8.0; update rewards and penalties constants to 0.8.0

* update is_valid_indexed_attestation(...) to 0.8.0; mark process_slot(...) as 0.8.0

* replace BeaconState.{current,previous}_justified_{epoch,root} with BeaconState.{current,previous}_justified_checkpoint
2019-07-05 08:30:05 +00:00
Dustin Brody 13381c8fea
update everything https://github.com/ethereum/eth2.0-specs/releases/tag/v0.7.1 leaves unchanged from v0.7.0 to v0.7.1 (#290) 2019-06-18 15:34:30 +00:00
Dustin Brody 6357bc2a98 0.7.0 updates which don't change semantics; mostly comment changes (#281)
* 0.7.0 updates which don't change semantics; mostly comment changes

* mark get_attesting_indices, bls_verify, ProposerSlashing, BeaconBlockBody, deposit contract constants, state list length constants, compute_committee, get_crosslink_committee, is_slashable_attestation_data, processAttesterSlashings as 0.7.0; rename BASE_REWARD_QUOTIENT to BASE_REWARD_FACTOR

* complete marking unchanged-in-0.7.0 datatypes as such; a few more have trivial field renamings, etc
2019-06-13 09:40:58 +02:00
Dustin Brody 252819a84d
bump everything that's not one of the 3 or so specific changes in 0.6.3 from 0.6.2 to 0.6.3 if already at 0.6.2 (#277) 2019-06-05 10:25:30 +00:00
Dustin Brody 2e1515b107
0.6.2 updates (#275)
* update process_justification_and_finalization to 0.6.2; mark AttesterSlashing as 0.6.2

* replace get_effective_balance(...) with state.validator_registry[idx].effective_balance; rm get_effective_balance, process_ejections, should_update_validator_registry, update_validator_registry, and update_registry_and_shuffling_data; update get_total_balance to 0.6.2; implement process_registry_updates

* rm exit_validator; implement is_slashable_attestation_data; partly update processAttesterSlashings

* mark HistoricalBatch and Eth1Data as 0.6.2; implement get_shard_delta(...); replace 0.5 finish_epoch_update with 0.6 process_final_updates

* mark increase_balance, decrease_balance, get_delayed_activation_exit_epoch, bls_aggregate_pubkeys, bls_verify_multiple, Attestation, Transfer, slot_to_epoch, Crosslink, get_current_epoch, int_to_bytes*, various constants, processEth1Data, processTransfers, and verifyStateRoot as 0.6.2; rm is_double_vote and is_surround_vote

* mark get_bitfield_bit, verify_bitfield, ProposerSlashing, DepositData, VoluntaryExit, PendingAttestation, Fork, integer_squareroot, get_epoch_start_slot, is_active_validator, generate_seed, some constants to 0.6.2; rename MIN_PENALTY_QUOTIENT to MIN_SLASHING_PENALTY_QUOTIENT

* rm get_previous_total_balance, get_current_epoch_boundary_attestations, get_previous_epoch_boundary_attestations, and get_previous_epoch_matching_head_attestations

* update BeaconState to 0.6.2; simplify legacy get_crosslink_committees_at_slot infrastructure a bit by noting that registry_change is always false; reimplment 0.5 get_crosslink_committees_at_slot in terms of 0.6 get_crosslink_committee

* mark process_deposit(...), get_block_root_at_slot(...), get_block_root(...), Deposit, BeaconBlockHeader, BeaconBlockBody, hash(...), get_active_index_root(...), various constants, get_shard_delta(...), get_epoch_start_shard(...), get_crosslink_committee(...), processRandao(...), processVoluntaryExits(...), cacheState(...) as 0.6.2

* rm removed-since-0.5 split(...), is_power_of_2(...), get_shuffling(...); rm 0.5 versions of get_active_validator_indices and get_epoch_committee_count; add a few tests for integer_squareroot

* mark bytes_to_int(...) and advanceState(...) as 0.6.2

* rm 0.5 get_attesting_indices; update get_attesting_balance to 0.6.2

* another tiny commit to poke AppVeyor to maybe not timeout at connecting to GitHub partway through CI: mark get_churn_limit(...), initiate_validator_exit(...), and Validator as 0.6.2

* mark get_attestation_slot(...), AttestationDataAndCustodyBit, and BeaconBlock as 0.6.2
2019-06-03 10:31:04 +00:00
Mamy Ratsimbazafy e5047d93a4 [Tests] SHA256 + official shuffling vectors (#263)
* Change digests to SHA2-256 (from Keccak256)

* Fix sha256 digest initialization - pass shuffling test

* Add comments + remove old shuffling tests

* Remove stale tree hashing tests

* Small toOpenArray optim + notes on in-place hashing

* Revert "Revert "Update test repo""

This reverts commit f385467cd3.

* Revert "Revert "Fix SIGFPE on shuffling for 0""

This reverts commit 226d380f87.

* Revert "Revert "Implement shuffling test (pending typedesc and shuffling algo fix)""

This reverts commit 813cb6fbb8.

* withEth2hash templates now needs ctx.init()

* Use init-update-finish to avoid burnMem
2019-05-10 08:14:01 +00:00
Dustin Brody 46b4154ce8 begin 0.6.0 (#256)
* begin 0.6.0: new get_domain/increase_balance/reduce_balance, BeaconState.validator_balances -> BeaconState.balances, some renamed constants, transaction processing changes, SlashableAttestation field name changes, 0.6.0 get_beacon_proposer_index always uses given state's slot, update tests subrepo

* mark get_bitfield_bit/bls_verify_multiple/stat-list-lengths/is_active_validator/is_surround_vote/slot_to_epoch/int_to_bytes/etc as unchanged in 0.6.0; rm Eth1DataVote/maybe_reset_eth1_period and thus adjust expected tree hash test results

* mark verify_bitfield/bls_verify/deposit-contract/VoluntaryExit/PendingAttestation/Historicalbatch/Fork as 0.6.0; update DOMAIN_BEACON_BLOCK to DOMAIN_BEACON_PROPOSER

* update Crosslink to 0.6.0 (also requires tree hashing test result change, so isolate in individual commit)

* mark verify_merkle_branch/get_delayed_activation_exit_epoch/ProposerSlashing/Attestation/AttestationDataAndCustodyBit/hash/integer_squareroot/get_epoch_start_slot/is_double_vote/get_randao_mix/generate_seed as 0.6.0; update reward and penalty quotients; SlashableAttestation -> IndexedAttestation; rm get_fork_version; ATTESTATION_INCLUSION_REWARD_QUOTIENT -> PROPOSER_REWARD_QUOTIENT
2019-04-29 10:48:30 -06:00
Jacek Sieka 605dd0a0e9 Some speedups (#226)
* ssz: avoid memory allocations

* a bit fishy with the 32-item stack.. this should be a smallvector

* digest: avoid another burnmem

* avoid a few allocations by using iterator
2019-04-03 15:46:22 +00:00
cheatfate 3117a4481e Remove unneeded initialization. 2019-03-28 23:24:50 +02:00
cheatfate 6f4c7b775c Remove one-line hash to avoid burnMem.
Remove unnecessary copyMem()s.
2019-03-28 23:24:50 +02:00
Mamy André-Ratsimbazafy 8273345a2c fix comment 2019-03-26 17:35:09 +02:00
Mamy André-Ratsimbazafy 8b5e18b7a4 Magic fix to #209 2019-03-26 17:35:09 +02:00
Dustin Brody f36c2d86dc begin 0.5.0 spec update (#179)
* begin 0.5.0 spec update: parent_root -> previous_block_root, BeaconState.justified_epoch -> BeaconState.current_justified_epoch, DOMAIN_PROPOSAL -> DOMAIN_BEACON_BLOCK, temporarily rename BeaconBlockHeader to BeaconBlockHeaderRLP to allow for gradual re-merging without disrupting RLP; mark a few unchanged functions and data types, implement get_temporary_block_header/get_empty_block/should_update_validator_registry/processBlockHeader/cacheState; update a few others

* a dozen or so more trivial mostly comment changes, finding more unchanged parts of 0.5.0

* several more trivial changes; goal is to reduce noise around the upcoming substantial changes (epoch processing, etc)
2019-03-16 13:52:37 -06:00
Dustin Brody 89aa3ec53f
fix keccak256 digest comments 2019-03-09 12:34:08 -08:00
Dustin Brody 81d5becc7b Switch hash functions, prevent underflow & verify that shuffling works (#149)
* prevent balance underflow, per spec implementation note

* verify that permutation shuffing works: add YAML dependency to be used for ingesting test cases; switch from blake2 to keccak256 to match EF test cases; remove inefficient naive-spec-version of shuffling algorithm now that protolambda's can be tested directly
2019-03-01 17:50:01 -06:00
Jacek Sieka 125231d321
add initial block pool (#139)
* implement in-memory block graph
* store tail block in database
* resolve unknown parents by syncing them from peers
* introduce concept of resolved blocks and attestations - those that
follow minimal protocol rules
* update state head lazily
* log more stuff
* shortHash -> shortLog
* start 9/10 beacon nodes by default, last can be started manually
* see also #134
* fix start.sh epoch length
2019-02-28 15:21:29 -06:00
Yuriy Glukhov 7f1bddb267 Use nim-eth (#82) 2019-02-05 20:21:18 +01:00
Zahary Karadjov 7608fd76a3 Make the code compile in Nim 0.19.0 2019-01-12 13:57:50 +02:00
mratsim 423f632606 Fork choice compiles (but untested) 2019-01-12 13:57:50 +02:00
Zahary Karadjov abb199d6dc Chain creation and network simulation start script 2018-12-19 15:39:00 +02:00
Jacek Sieka 44bb13ae46
spec updates (#37)
* use repeat_hash from spec in randao
* add some logging to state processing
* export crypto string converters in spec insulation layer
* enable block signature verification
* ssz: add support for arrays, remove custom data type code
* correctly handle previous and new block
* add trivial block processing tests
* prefer iterative repeat_hash
* state transition mostly done
* handle most specials and slashings
2018-12-13 10:00:55 -06:00
Jacek Sieka b01c51b3e2
move spec stuff to spec directory
helps maintain sanity in the face of spec changes
2018-11-28 13:49:03 -06:00