Comments (3)
paulmillr
commented on July 23, 2024
The recovery bit is important for proper recovery. That’s whole point of it. You need to store it somewhere after signature is done if you want to restore it. That’s what Ethereum does.
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hea9549
commented on July 23, 2024
@paulmillr then, �you mean that it is theoretically correct to verify a single signature with two public keys?
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paulmillr
commented on July 23, 2024
Correct, it's called "Exclusive Ownership", and ECDSA does not have this property.
verif 0 02260e3fa4c347cccdcc12e86e2f1a543f679648a31d0b26484da39f75b16b0be0 true
verif 1 03761c025b761d7a7c6d4bfd8d944975915e3d4879a2fead6e4417bdfe5de0ac36 true
EDDSA (ed25519) does not suffer from that problem, when implemented properly.
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Related Issues (20)
- Fp.fromBytes does not mod-reduce by default HOT 2
- What is the difference between getSharedSecret and ECDH_compute_key HOT 1
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- Wrong signature is generated HOT 8
- seeded (instead of random) ed25519 private key generation? HOT 1
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- Signature::fromHex wrong in 1.3.0 HOT 4
- Default bls12_381 is incompatible with Ethereum beacon chain HOT 8
- Incompatibility with old bls12-381 library: not in prime-order subgroup HOT 3
- H2CPoint to ProjectivePoint HOT 2
- Montgomery sample code doesn't compile. (PR submitted) HOT 1
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- Include sha512_256 in file noble-curves.js HOT 1
- Ideas for v2 HOT 7
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