fix: remove double hash in SIGN_BLOCK handler - #19
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milenkojankoski wants to merge 1 commit into
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SIGN_BLOCK was signing SHA3(blockHash) instead of blockHash directly. The KeetaNet client verifies block signatures over the block hash (SHA3 of canonical block bytes) without re-hashing, so the extra SHA3 produced an invalid signature. Remove the second hash so the device signs blockHash = SHA3(block_bytes) directly, matching what the client expects.
Srayman
approved these changes
Jul 30, 2026
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Summary
SHA3(blockHash)instead ofblockHashdirectlySHA3(canonical block bytes)) without re-hashing, so the extra SHA3 produced an invalid signatureRelated
Companion SDK fix: https://github.com/KeetaNetwork/ledger-js-sdk/pull/new (PR incoming)