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silentdragonlite-cli/bip39bug.md

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silentdragonlite-cli BIP39 derivation bug

In v1.0 of silentdragonlite-cli, there was a bug that incorrectly derived HD wallet keys after the first key. That is, the first key, address was correct, but subsequent ones were not.

The issue was that the 32-byte seed was directly being used to derive then subsequent addresses instead of the 64-byte pkdf2(seed). The issue affected both t and z addresses.

Note that no funds are at risk. The issue is that, if in the future, you import the seed into a different wallet, you might not see all your addresses in the new wallet, so it's better to fix it now.

Fix

If you start a wallet that has this bug, you'll be notified. The bug can be automatically fixed by the wallet by running the fixbip39bug command. Just start silentdragonlite-cli and type fixbip39bug.

If you have any funds in the incorrect addresses, they'll be sent to yourself, and the correct addresses re-derived.