Comments (1)
My issue was that if HW wallets internals are usually difficult to audit and if they use synthetic nonces then it won't even be possible to spot check that they are not engaging in covert communications to leak secret material.
However synthetic nonces seem reasonable for software wallets. I think I'm okay with keeping the synthetic nonce derivation inside as long as we recommend that hardware wallets use a different, anit-covert-channel method and refer them to an appropriate document.
I'm even willing to try to write up a document for anti-covert-channel HW signature. I'm just worried that because I don't personally make hardware wallets, no one will use it because I somehow misunderstand some aspect of their design constraints.
from bips.
Related Issues (20)
- bip-schnorr/taproot agree on terminology of points HOT 6
- bip-taproot: Add security argument HOT 5
- bip-taproot: Internal pubkey construction seems to be inconsistent. HOT 3
- bip-taproot: Motivation section doesn't address motivation clearly HOT 2
- Diagram under "Constructing and spending Taproot outputs" doesn't show HOT 2
- bip-taproot/tapscript: Prevention length-extension attacks in public key tweaking HOT 6
- bip-schnorr: Euler's criterion
- bip-schnorr: Inaccurate proof of quadratic residuosity HOT 2
- Syntactical issue in taproot footnote 16 HOT 2
- bip-taproot: Publick key tweak resulting in point-at-infinity HOT 5
- bip-schnorr: Add k values to test-vectors HOT 8
- Avoiding the EC multiplication during signing by using precomputed pubkey data HOT 15
- Squareness vs oddness tie-breaker for public keys HOT 8
- Discussion on power analysis attacks HOT 47
- bip-schnorr: nonce uses hash instead of PRF HOT 2
- Synthetic randomness for batch verification HOT 2
- BIP340: clarify impact of pre-hashed messages, or support variable-length messages HOT 71
- bip340: Cite malleability issues with other schemes
- bip-340: Reduce size of batch verification randomizers to 128 bits HOT 4
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from bips.