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Tomas Vrba

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9 commits1 monitored projects4 candidates0 high-risk analyses
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Low 35 AI analysisMessage 73 · Adequate
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: harmonize large data warnings for transactions and typed messages

This commit changes how the BitBox02 hardware wallet warns users about very large Ethereum transaction data and typed messages. Previously, large transaction data was shown only as a byte count with the message 'too large to display.' Now …

UI warning consistency change for large Ethereum dataShared preview/truncation logic between eth transaction and typed-message signingStreaming data producer now captures a bounded preview while hashing
56a6ec34by Tomas Vrba+434−1005 files
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Low 37 AI analysisMessage 78 · Adequate
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: implement streaming for typed data messages

This commit extends an existing Ethereum data-streaming feature so it also works for EIP-712 typed messages with large data fields (e.g., a 50 KB 'bytes' field). Previously, only large Ethereum transaction data could be streamed in chunks;…

New protocol field `data_length` gated by size thresholdStreaming restricted to dynamic `bytes` type; other types rejected with `Error::InvalidInput`Maximum streaming length capped at 1 MB (`MAX_TYPED_MSG_STREAMING_DATA_LENGTH`)
fd2653cfby Tomas Vrba+1155−7212 files
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Moderate 59 AI analysisMessage 73 · Adequate
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: fix data streaming issue when data lenght is exactly 1 byte

This commit fixes a bug in the BitBox02 hardware wallet's Ethereum transaction signing. When signing an Ethereum transaction whose 'data' field is exactly 1 byte long and is streamed from the host computer in chunks, the device could call …

Fixes a panic/invalid-input path in Ethereum transaction signing for 1-byte streamed data payloadsChanges synchronous first-byte access to asynchronous on-demand chunk requestAdds explicit 1-byte streaming unit tests for both legacy and EIP-1559 transaction paths
a2579c78by Tomas Vrba+1751−16476 files
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Informational 15 AI analysisMessage 78 · Adequate
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: add tests with large data to test streaming

This commit is purely a test-suite update for the BitBox02 hardware wallet's Ethereum transaction signing. It adds unit tests that verify the new 'streaming' mode for large transaction data produces the same cryptographic signatures as the…

2a1108e0by Tomas Vrba+1873−25856 files
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Informational 15 AI analysisMessage 45 · Thin
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: bump firmware version for eth streaming

This commit is a routine version bump and changelog update. It records that the next firmware release will add support for streaming large Ethereum transaction data, but it does not contain any actual code changes to the feature itself. Th…

22fd96b8by Tomas Vrba+2−12 files
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Informational 15 AI analysisMessage 70 · Adequate
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: extract eth sighash test data into json

This commit is a routine code cleanup: it moves Ethereum transaction test data out of Rust source files into separate JSON files and adds small helper scripts to generate that data. It also makes minor type-casting fixes in unrelated test …

bfc22b42by Tomas Vrba+3580−388713 files
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Informational 21 AI analysisMessage 83 · Strong
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: update python api to support streaming large transactions

This commit updates the BitBox02 Python client library to support signing Ethereum transactions whose extra data field is larger than 6,144 bytes. Instead of sending the whole transaction data in one message, the client now breaks it into …

New chunking protocol handler added in client libraryBoundary check on chunk offset/length against transaction_data lengthUnexpected-response checks after chunking loop
fd64d9abby Tomas Vrba+101−83 files
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Low 34 AI analysisMessage 80 · Strong
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: implement data producer for streaming

This commit adds support for signing Ethereum transactions with very large 'data' fields by streaming the data in 4 KB chunks instead of loading it all at once. It also adds safety checks: streamed and inline data cannot both be provided, …

Adds streaming/chunking of large transaction data to avoid loading up to 1 MB into memory at onceAdds mutual-exclusion check preventing both inline `data` and `data_length` streaming from being active simultaneouslyAdds explicit size caps: 6144 bytes for inline data, 1 MB for streamed data
5c39f840by Tomas Vrba+221−672 files
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Informational 11 AI analysisMessage 83 · Strong
BB BitBoxBitBox02 firmware BitcoinHardware wallets

eth: prepare and generate proto files for data streaming

This commit adds new message definitions and generated code to support streaming large Ethereum transaction data in chunks, but it does not implement the actual streaming logic. Existing tests are updated only to include the new optional f…

New protobuf fields added for future streaming featureStreaming request type explicitly rejected with InvalidState in current codeNo validation or processing logic implemented for data_length or chunk messages
83be97adby Tomas Vrba+154−446 files
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