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Dang nonce reuse. I wonder how much this could be avoided if we named it something like DO-NOT-REUSE-EVEN-PARTIALLY.

ECDSA can be tweaked to work without randomness. No randomness, no bad randomness.

I didn't know this.

I have wondered in the past, if you need a nonce for every time you sign a transaction, why is it okay to trust your device to generate the randomness when it is not safe to trust your device to generate the randomness for your key?

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