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Tobias Oberstein 2018-03-25 21:49:30 +02:00
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EIPS/eip-665.md
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@ -46,17 +46,17 @@ The proposal adds a new precompiled function `ED25519VFY` with the following inp
### Address
The address of `ED25519VFY` is `0x08`.
The address of `ED25519VFY` is **`0x8`.**
### Gas costs
Gas cost for `ED25519VFY` is 2000.
Gas cost for `ED25519VFY` is **2000**.
## Rationale
The proposed `ed25519verify` function takes the signer public key as a call parameter, as with Ed25519, I don't believe it is possible to derive the signers public key from the signature and message alone.
The proposed `ED25519VFY` function takes the signer public key as a call parameter, as with Ed25519, I don't believe it is possible to derive the signers public key from the signature and message alone.
The proposed `ed25519verify` function uses a zero return value to indicate success, since this allows for different errors to be distinguished by return value, as all non-zero return values signal a verification failure.
The proposed `ED25519VFY` function uses a zero return value to indicate success, since this allows for different errors to be distinguished by return value, as all non-zero return values signal a verification failure.
`ECRECOVER` has a gas cost of 3000. Since Ed25519 is computationally cheaper, the gas price should be less.