drand_verify

Struct G2PubkeyFastnet

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pub struct G2PubkeyFastnet(/* private fields */);
Expand description

The pubkey type for drand networks with scheme ID bls-unchained-on-g1.

This includes primarily the “fastnet” launched as a mainnet on March 1st, 2023 but also “testnet-g”. Please note that fastnet is deprecated and will be shut down: https://drand.love/blog/2023/07/03/fastnet-sunset-quicknet-new/

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impl Pubkey for G2PubkeyFastnet

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fn verify_step2( &self, signature: &[u8], msg_on_curve: &Self::Other, ) -> Result<bool, VerificationError>

Takes this public key and verifies the signature with it. The message has to be created with Self::msg_to_curve.

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type This = G2

The curve (G1 or G2) on which the public key lives
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type ThisCompressed = [u8; 96]

The type in which this point is expressed in binary data (either [u8; 48] or [u8; 96])
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type Other = G1

The other curve (G2 or G1) on which the signature lives
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fn msg_to_curve(msg: &[u8]) -> Self::Other

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fn from_fixed(data: [u8; 96]) -> Result<Self, InvalidPoint>

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fn from_fixed_unchecked(data: [u8; 96]) -> Result<Self, InvalidPoint>

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fn from_variable(data: &[u8]) -> Result<Self, InvalidPoint>

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fn verify( &self, round: u64, previous_signature: &[u8], signature: &[u8], ) -> Result<bool, VerificationError>

The high level verification method for a drand beacon. Read more

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