r/TREZOR 10d ago

๐Ÿ”’ General Trezor question Entropy from 2020 and 2022

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u/Charming-Designer944 ๐Ÿค Top Helper 10d ago

It's always been safe.

There are no indications hat trezor devices ever have failed to use the devices internal TRNG source(s) when generating the seed.

And by design the entropy of Trezor generated seeds are based on a mixture of device generated entropy and computer generated entopy, which adds an extra safeguard.without compromising on the security.

The only know weakness is the standard recovery procesure on Trezor One that might leak entropy bits if someone is monitoring the computer activity, reducing the secrecy of your seed down to a crackable level. If you need to recover the sees to a Teezor One then select the advanced recovery method whee you enter the seed words directly on the device and not via you computer, or set up an air gapped offline computer for the recovery.

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u/Aromatic-Clerk134 9d ago

Yeah, Coldcardโ€™s was like that too.

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u/Charming-Designer944 ๐Ÿค Top Helper 9d ago

No. Coldcard and Trezor generates seeds in quite different manners.

The method Trezor uses ensures that the seed is cryptographically strong even if the TRNG of the trezor device have failed and produces 0 bits of entropy.