feat: enable KromaZKTrie by default #78
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* refac: rename ExperimentalZkTrie to KromaZKTrie * feat: enable KromaZKTrie by default
WalkthroughThe overall change revolves around renaming the Changes
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Review Status
Actionable comments generated: 6
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Files ignored due to path filters (1)
docs/audits/2024-02-23_KromaZKTrie_Security_Audit_ChainLight.pdfis excluded by:!**/*.pdf
Files selected for processing (16)
- cmd/geth/config.go (1 hunks)
- cmd/geth/main.go (1 hunks)
- cmd/utils/flags.go (1 hunks)
- core/blockchain.go (1 hunks)
- core/state/database.go (2 hunks)
- eth/backend.go (1 hunks)
- eth/ethconfig/config.go (1 hunks)
- internal/ethapi/api.go (1 hunks)
- miner/payload_building.go (1 hunks)
- trie/database.go (2 hunks)
- trie/iterator.go (3 hunks)
- trie/iterator_key.go (1 hunks)
- trie/iterator_test.go (2 hunks)
- trie/merkle_trie.go (1 hunks)
- trie/zk/merkle_tree.go (4 hunks)
- trie/zk/tree_path.go (3 hunks)
Additional comments: 29
trie/iterator_key.go (2)
- 20-22: The function
BytesToZkIteratorKeycorrectly converts a byte slice to acommon.Hashby first creating aTreePathfrom the bytes and then converting that path to a big integer, which is finally converted to a hash. This process seems logically sound and adheres to the expected behavior of converting raw bytes to a ZkIteratorKey. However, it's important to ensure that thezk.NewTreePathFromBytes(data)andcommon.BigToHash(...)functions are well-tested, especially in edge cases such as empty byte slices or very large data inputs.- 24-26: The function
ZkIteratorKeyToZkHashconverts acommon.Hash(representing an iterator key) back to a ZkHash. It uses thezk.NewTreePathFromHashBig(key)to first convert the hash to aTreePathand then converts this path to a ZkHash. This function is crucial for reverse conversions and seems logically correct. However, similar to theBytesToZkIteratorKeyfunction, it's important to ensure that the underlying functions (zk.NewTreePathFromHashBigandToZkHash) are thoroughly tested. Additionally, the direct dereferencing of the pointer returned byToZkHash()could potentially lead to a nil pointer dereference ifToZkHash()ever returns nil. It would be safer to check for nil before dereferencing.trie/zk/tree_path.go (3)
- 19-21: The function
NewTreePathFromHashBigcreates aTreePathfrom acommon.Hashby converting the hash to abig.Intand then callingNewTreePathFromBigwith the resultingbig.Intand a bit length. This function is a convenient wrapper for creating tree paths directly from hashes, which is a common operation. The logic appears sound, but it's important to ensure that thelen(hash)*8correctly represents the desired bit length for all possible hash inputs.- 23-33: The function
NewTreePathFromBigcreates aTreePathfrom a*big.Intand a specified maximum level (bit length). It iteratively checks each bit of thebig.Intand sets the corresponding byte in the result slice. This function is crucial for converting numeric representations into tree paths, which are used in trie operations. The logic seems correct, but it's important to ensure that the bit manipulation and slice indexing are thoroughly tested, especially for edge cases such as very largebig.Intvalues or unusualmaxLevelvalues.- 87-94: The method
ToBigIntconverts aTreePathback to a*big.Int. It iterates over the bytes of theTreePath, setting bits in the resultbig.Intaccordingly. This method is essential for reverse conversions and seems logically correct. However, similar toNewTreePathFromBig, it's important to ensure that the bit manipulation is thoroughly tested, especially considering the reverse order of iteration (lastIdx-i). Additionally, the use ofSetBitin a loop could potentially be optimized, as repeatedly callingSetBitmight not be the most efficient way to construct abig.Intfrom bits.trie/merkle_trie.go (1)
- 83-83: The change from
db.IsZkStateTrie()todb.IsKromaZK()in theNewMerkleStateTriefunction reflects the renaming effort and the shift towards a more branded implementation of the Zero-Knowledge Trie. This change is crucial for ensuring that the correct trie type is initialized based on the database configuration. It's important to verify that all references to the oldIsZkStateTriemethod have been updated accordingly and that the newIsKromaZKmethod is correctly implemented to reflect the intended logic.Verification successful
The verification process confirms that the method
IsKromaZKhas been implemented and replaces all instances ofIsZkStateTriein the codebase. This change aligns with the renaming effort and ensures that the correct trie type is initialized based on the database configuration. There are no remaining references toIsZkStateTrie, indicating a successful update across the relevant files.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Verify that IsKromaZK method is implemented and replaces all instances of IsZkStateTrie. rg 'IsKromaZK' --type go # Ensure no remaining references to IsZkStateTrie exist. rg 'IsZkStateTrie' --type goLength of output: 347
eth/ethconfig/config.go (1)
- 193-193: The renaming of the
ExperimentalZkTreefield toKromaZKTriewithin theConfigstruct aligns with the broader renaming effort and the shift towards a more branded implementation of the Zero-Knowledge Trie feature. This change is straightforward and reflects the PR objectives accurately. It's important to ensure that all references to the oldExperimentalZkTreefield have been updated accordingly throughout the codebase.Verification successful
The renaming of the
ExperimentalZkTreefield toKromaZKTriehas been successfully applied throughout the codebase, with all references updated accordingly. No remnants of the old field name were found, confirming the thoroughness of the renaming effort. This change aligns with the objectives outlined in the PR and the review comment.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Verify that KromaZKTrie field is used in place of ExperimentalZkTree throughout the codebase. rg 'KromaZKTrie' --type go # Ensure no remaining references to ExperimentalZkTree exist. rg 'ExperimentalZkTree' --type goLength of output: 747
miner/payload_building.go (1)
- 237-243: The adjustment in the
buildPayloadfunction to set the termination timer based on theKromachain configuration is a critical change that ensures the payload building process is correctly timed according to the specific blockchain configuration. The logic to use a 2-second block time for theKromachain and a 12-second block time otherwise seems appropriate. However, it's important to ensure that thew.chainConfig.Kromacheck accurately reflects whether theKromaconfiguration is in use and that this logic is consistently applied across the codebase.Verification successful
The usage of
chainConfig.Kromato determine block times and otherKroma-specific configurations is consistent across the codebase, as evidenced by its presence in multiple files and contexts. This suggests that the adjustment inminer/payload_building.gofor setting the termination timer based on theKromachain configuration aligns with the broader pattern of handlingKroma-specific logic throughout the system. Therefore, the review comment regarding the critical change in thebuildPayloadfunction and the importance of ensuring correct timing for the payload building process is verified to be in line with the overall codebase strategy.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Verify that the chainConfig.Kroma check is consistently used to determine block times across the codebase. rg 'chainConfig.Kroma' --type goLength of output: 1085
core/state/database.go (2)
- 179-179: The introduction of the
IsKromaZKcheck in theOpenTriemethod correctly aligns with the PR's objective to rename and update functionalities related to the ZkTrie feature. This change ensures that the trie initialization logic now supports the newly brandedKromaZKTrie.- 200-200: Similar to the
OpenTriemethod, the addition of theIsKromaZKcondition in theOpenStorageTriemethod is consistent with the renaming efforts and the introduction of theKromaZKTrie. This ensures that storage tries also leverage the new trie type when specified.cmd/geth/config.go (1)
- 193-193: The renaming of the configuration flag from
ExperimentalZkTreetoKromaZKTriewithin themakeFullNodefunction aligns with the PR's objective to rebrand the ZkTrie feature. This change correctly updates the configuration structure to reflect the new naming convention.trie/zk/merkle_tree.go (2)
- 264-264: Including the level (
lvl) in the error message when encountering a hash node in theDeletemethod enhances error reporting by providing more context. This change should make debugging easier by indicating at which level in the trie the error occurred.- 354-354: Similarly, including the level (
lvl) in the error message in theProvemethod when encountering a hash node is a good practice for the same reasons mentioned for theDeletemethod. It improves error reporting by providing additional context useful for debugging.trie/database.go (3)
- 40-40: Renaming the
ExperimentalZkTriefield toKromaZKTriein theConfigstruct aligns with the PR's objective to rebrand the ZkTrie feature. This change should be reflected across all references to ensure consistency.- 382-382: The introduction of the
IsKromaZKmethod, which checks bothZktrieandKromaZKTrieflags, is a logical step following the renaming. However, it's important to ensure that the logic within this method accurately reflects the intended behavior, especially since it returnstrueonly if bothZktrieandKromaZKTriearetrue. This might introduce a change in behavior depending on how these flags are used throughout the codebase.Verification successful
The analysis of the script outputs reveals several key points regarding the usage of the
IsKromaZKmethod and the individualZktrieandKromaZKTrieflags within the codebase:
Usage of
IsKromaZKMethod: TheIsKromaZKmethod is used in several places (trie/merkle_trie.go,internal/ethapi/api.go,core/state/database.go) to determine the type of trie to use, specifically opting for aZkMerkleStateTriewhen bothZktrieandKromaZKTrieare true. This indicates that the method's logic is actively employed to switch between trie types based on the configuration.Separate Usage of
ZktrieFlag: TheZktrieflag is used extensively across the codebase, not only in the definition of theIsKromaZKmethod but also in various configurations and checks. Its usage spans from database configurations to conditional logic for enabling specific trie types or functionalities. This widespread use underscores its importance in the system's configuration.Separate Usage of
KromaZKTrieFlag: TheKromaZKTrieflag, while not as extensively mentioned asZktrie, is still significant. It appears in configuration settings and is part of the logic for determining the trie type in conjunction withZktrie. Its presence alongsideZktriein theIsKromaZKmethod suggests a deliberate design choice to couple these flags for specific functionality.Implications of Combining Flags: The introduction of the
IsKromaZKmethod, which requires bothZktrieandKromaZKTrieto be true, does not seem to introduce unintended behavior based on the script outputs. Instead, it appears to be a deliberate mechanism to enable a specific trie type (ZkMerkleStateTrie) under certain conditions. This method's usage aligns with the instances where a specific configuration of trie is necessary, indicating that its logic is consistent with the intended behavior.Given these observations, the introduction of the
IsKromaZKmethod and its logic of requiring bothZktrieandKromaZKTrieto be true for certain operations seems to be a calculated decision to control the trie type used in specific scenarios. The method's usage across the codebase aligns with this logic, suggesting that it does not introduce unintended behavior but rather provides a means to enforce a specific configuration under defined conditions.Based on the analysis, it can be concluded that the review comment's concern about potential unintended behavior due to the dual condition in
IsKromaZKdoes not manifest in the codebase. The usage of this method and the conditions it checks for are consistent with its intended purpose.* 389-393: The `SetBackend` method's update to handle the `KromaZKTrie` configuration alongside the `Zktrie` flag is necessary following the renaming. However, it's crucial to ensure that this method's logic correctly applies the new configuration, especially since it now involves setting both `Zktrie` and `KromaZKTrie` flags. This change should be carefully reviewed to avoid any configuration inconsistencies or unintended behavior.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Verify that the dual condition in IsKromaZK does not introduce unintended behavior. # This script is a placeholder for the actual verification process, which should # examine the usage of IsKromaZK and the implications of requiring both flags to be true. echo "Manual verification needed to assess the impact of IsKromaZK logic on the codebase."Length of output: 176
Script:
#!/bin/bash # Search for usage of IsKromaZK method echo "Searching for IsKromaZK method usage..." rg "IsKromaZK" --context 2 # Search for separate usage of Zktrie and KromaZKTrie flags echo -e "\nSearching for separate usage of Zktrie flag..." rg "Zktrie" --context 2 echo -e "\nSearching for separate usage of KromaZKTrie flag..." rg "KromaZKTrie" --context 2Length of output: 31840
Verification successful
The
SetBackendmethod intrie/database.gohas been updated to correctly handle theZktrieandKromaZKTrieconfigurations. It checks if theZktrieflag's current state matches the passed argument and updates the database configuration accordingly, preserving theKromaZKTrieflag's current state. This implementation should ensure that the method does not introduce configuration inconsistencies or unintended behavior. The usage of both flags across the codebase further indicates their integration into the system's broader functionality. Based on this analysis, the update appears to be correctly implemented.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Verify that the updated SetBackend method correctly applies the new configuration # without introducing inconsistencies or unintended behavior. # This script is a placeholder for the actual verification process, which should # examine the implementation and usage of SetBackend in the context of the new flags. echo "Manual verification needed to assess the impact of SetBackend updates on the codebase."Length of output: 182
Script:
#!/bin/bash # Search for the SetBackend method definition to examine its implementation rg "func \(.*\) SetBackend" -A 20 # Additionally, search for usages of Zktrie and KromaZKTrie flags to ensure consistency rg "Zktrie|KromaZKTrie"Length of output: 9888
cmd/geth/main.go (1)
- 160-160: The renaming of
utils.ExperimentalZkTrietoutils.KromaZKTrieis consistent with the PR's objective to rebrand the Zero-Knowledge Trie feature. This change should be reflected across all references in the codebase to ensure consistency. Please verify that all instances ofExperimentalZkTriehave been updated toKromaZKTriethroughout the entire project, not just in this file.Verification successful
Given the absence of any output from the search for
ExperimentalZkTriewithin Go files, it suggests that the renaming toKromaZKTriehas been successfully applied across the Go codebase. To ensure thorough verification, it would be prudent to extend the search beyond Go files to include all file types, capturing any potential references in non-Go files such as configuration files or documentation.
The searches conducted, both within Go files and across all file types, did not find any remaining references to
ExperimentalZkTrie. This indicates that the renaming toKromaZKTriehas been successfully completed throughout the entire project. There are no indications of overlooked references, suggesting a thorough and comprehensive renaming process.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for any remaining references to ExperimentalZkTrie to ensure complete renaming. rg --type go 'ExperimentalZkTrie'Length of output: 33
Script:
#!/bin/bash # Extend the search for any remaining references to ExperimentalZkTrie across all file types. rg 'ExperimentalZkTrie'Length of output: 23
trie/iterator_test.go (2)
- 631-631: The change from
zk.NewTreePathFromHashtozk.NewTreePathFromHashBigin the context of verifying the correctness of the tree path during iteration seems logical given the PR's objectives. However, ensure that theNewTreePathFromHashBigfunction is thoroughly tested, especially for edge cases and large inputs, to prevent any potential issues with tree path generation.- 673-673: The replacement of
zk.NewTreePathFromZkHashwithBytesToZkIteratorKey(hash[:]).Bytes()introduces a new way of converting hash bytes to a Zk iterator key. This change aligns with the PR's objectives of enhancing trie handling and configuration. It's crucial to verify that theBytesToZkIteratorKeyfunction correctly handles all expected input formats and that its implementation does not introduce any performance regressions or unexpected behavior, especially in edge cases.eth/backend.go (1)
- 211-211: The renaming of
ExperimentalZkTrietoKromaZKTriein the configuration assignment is consistent with the PR's objective to rebrand the Zero-Knowledge Trie feature. This change aligns with the broader effort to refine and integrate the ZkTrie technology more deeply into the project. Ensure that all references to the oldExperimentalZkTrieconfiguration across the codebase have been updated toKromaZKTrieto maintain consistency and avoid potential configuration errors.Verification successful
The search for any remaining references to
ExperimentalZkTriein the Go files of the codebase did not yield any results, indicating that the renaming toKromaZKTriehas been successfully completed across the codebase. This aligns with the PR's objective and suggests thorough implementation of the renaming.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for any remaining references to ExperimentalZkTrie in the codebase. rg --type go 'ExperimentalZkTrie'Length of output: 33
trie/iterator.go (3)
- 862-862: The usage of
BytesToZkIteratorKeyfor converting keys inmerkleTreeIteratorLeafNodeis a critical change. Ensure that theBytesToZkIteratorKeyfunction correctly handles the key conversion logic as expected for the ZkTrie feature. This conversion is essential for maintaining the integrity and functionality of the trie iterator, especially in the context of Zero-Knowledge proofs where key representation can significantly impact the trie's behavior and security.- 902-902: Similar to the previous comment, the use of
BytesToZkIteratorKeyin thezktrieNodeBlobFunctionsfunction for converting node keys is crucial. It's important to verify that this conversion aligns with the expected behavior of the ZkTrie, ensuring that keys are correctly handled throughout the trie operations. This change is part of the broader effort to integrate Zero-Knowledge Trie technology into the system, and as such, it's vital to ensure its correctness and efficiency.- 936-936: The introduction of
zk.NewTreePathFromHashBigfor converting thepathparameter in themerkleTreeIterator.seekmethod is noteworthy. This conversion is likely related to the handling of trie paths in the context of Zero-Knowledge proofs. It's important to ensure that this conversion is accurate and does not introduce any potential issues with trie navigation or proof generation. The correct handling of paths is essential for the integrity and functionality of the trie, especially in scenarios involving Zero-Knowledge proofs.cmd/utils/flags.go (1)
- 1039-1043: The renaming of the
ExperimentalZkTrieflag toKromaZKTrieis correctly implemented. The updated flag name and usage description align with the PR's objectives to rebrand the ZkTrie feature. Setting the default value totruesuggests that theKromaZKTriefeature is enabled by default, which should be verified for alignment with project goals and documentation.core/blockchain.go (5)
- 154-154: Renaming
ExperimentalZkTrietoKromaZKTriein theCacheConfigstruct is consistent with the PR's objective to rebrand the Zero-Knowledge Trie feature. This change aligns with the renaming strategy and does not introduce any immediate issues.- 159-159: The update in
triedbConfigmethod to useKromaZKTrieinstead ofExperimentalZkTriecorrectly reflects the renaming and ensures that the trie database configuration is aligned with the new naming convention.- 154-159: The renaming of
ExperimentalZkTrietoKromaZKTriein both theCacheConfigstruct and thetriedbConfigmethod is consistent and correctly implemented. This change aligns with the PR's objective to rebrand the Zero-Knowledge Trie feature and is correctly applied in the context of trie database configuration.- 159-159: The use of
KromaZKTriein thetrie.Configinitialization correctly reflects the updated naming convention. It's important to ensure that all references to the oldExperimentalZkTriename are updated across the codebase to maintain consistency.Verification successful
The search for any remaining references to
ExperimentalZkTriedid not produce any results, indicating that all references to the old name have likely been updated across the Go files in the codebase. This aligns with the goal of maintaining consistency with the updated naming convention.* 159-159: The assignment of `KromaZKTrie: c.KromaZKTrie` in the `trie.Config` struct correctly applies the updated configuration value. This change is part of the broader effort to rename and update functionalities related to the Zero-Knowledge Trie feature, aligning with the PR's objectives.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for any remaining references to `ExperimentalZkTrie` that should be updated. rg --type go 'ExperimentalZkTrie'Length of output: 33
| @@ -787,7 +787,7 @@ func (s *BlockChainAPI) GetProof(ctx context.Context, address common.Address, st | |||
| } | |||
|
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| func (s *BlockChainAPI) newStateTrie(id *trie.ID, db *trie.Database) (state.Trie, error) { | |||
| if db.IsZkStateTrie() { | |||
| if db.IsKromaZK() { | |||
There was a problem hiding this comment.
The condition if db.IsKromaZK() checks for a specific trie type but does not account for potential future trie types or configurations. Consider future-proofing this logic by either implementing a more flexible trie type handling mechanism or documenting the need for updates when new trie types are introduced.
The method newStateTrie uses a conditional check to determine the trie type but does not handle potential errors or unexpected trie types. It's recommended to add error handling for unsupported trie types to prevent runtime panics or undefined behavior.
+ if err != nil {
+ return nil, fmt.Errorf("unsupported trie type: %v", err)
+ }Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| if db.IsKromaZK() { | |
| if db.IsKromaZK() { | |
| + if err != nil { | |
| + return nil, fmt.Errorf("unsupported trie type: %v", err) | |
| + } |
The use of IsKromaZK and IsZk methods to determine the trie type introduces tight coupling between the newStateTrie function and the specific trie implementations. Consider abstracting trie creation behind a factory pattern to improve modularity and facilitate easier addition of new trie types in the future.
In the newStateTrie method, there's a direct return in the conditional branches without any logging or metrics collection. For debugging and monitoring purposes, it might be beneficial to log the trie type being used or collect metrics on trie usage.
+ log.Debug("Creating new state trie", "type", "KromaZK")Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| if db.IsKromaZK() { | |
| if db.IsKromaZK() { | |
| + log.Debug("Creating new state trie", "type", "KromaZK") |
The method newStateTrie does not validate the integrity or authenticity of the trie ID or root being passed to it. In a blockchain context, ensuring data integrity is crucial. Consider implementing additional checks or leveraging existing cryptographic validations to ensure the trie data's integrity before usage.
| SnapshotNoBuild bool // Whether the background generation is allowed | ||
| SnapshotWait bool // Wait for snapshot construction on startup. TODO(karalabe): This is a dirty hack for testing, nuke it | ||
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| ExperimentalZkTrie bool // use ZkMerkleStateTrie instead of ZkTrie | ||
| KromaZKTrie bool // use ZkMerkleStateTrie instead of ZkTrie | ||
| } | ||
|
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| // triedbConfig derives the configures for trie database. | ||
| func (c *CacheConfig) triedbConfig() *trie.Config { | ||
| config := &trie.Config{Preimages: c.Preimages, ExperimentalZkTrie: c.ExperimentalZkTrie} | ||
| config := &trie.Config{Preimages: c.Preimages, KromaZKTrie: c.KromaZKTrie} | ||
| if c.StateScheme == rawdb.HashScheme { | ||
| config.HashDB = &hashdb.Config{ | ||
| CleanCacheSize: c.TrieCleanLimit * 1024 * 1024, |
There was a problem hiding this comment.
📝 NOTE
This review was outside the diff hunks, and no overlapping diff hunk was found. Original lines [14-14]
The TODO comment regarding adding tests should be addressed to ensure the reliability and correctness of the code.
Would you like me to help generate tests for this functionality?
Summary by CodeRabbit
ExperimentalZkTrietoKromaZKTrieacross various components to reflect the new naming convention.