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Fabian Jahr

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66 commits1 monitored projects2 candidates0 high-risk analyses
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Bitcoin CoreBitcoin Core66 commits2 candidates0 high risk
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Moderate 60 AI analysisMessage 60 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

musig: Check session id reuse

This commit hardens Bitcoin Core's MuSig2 multi-signature code by refusing to save a second secret nonce under the same session ID. Before the change, an attacker or buggy caller could potentially overwrite a nonce, which in multi-signatur…

nonce-reuse prevention in MuSig2 signingassertion added to enforce single-secnonce-per-session invariantcryptographic signing state integrity hardening
c9519c26by Fabian Jahr+3−11 file
Vendor flagged security relevance
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Moderate 57 AI analysisMessage 73 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

index: Fix coinstatsindex overflow issue

This commit fixes an integer overflow bug in Bitcoin Core's optional coin statistics index. The index keeps running totals of spent and created coins, and on long-running or high-activity networks these totals could exceed the range of the…

Integer overflow in cumulative monetary totals (CAmount overflow observed on Signet)Data-format change requiring a new database directory to avoid loading legacy overflowed stateRemoval of redundant total_unspendable_amount accumulator to reduce consistency risk
431a076aby Fabian Jahr+98−946 files
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