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Sha256Transcript

sl_mpc_vrf::transcript

Struct Sha256Transcript 

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pub struct Sha256Transcript(/* private fields */);

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impl TranscriptProtocol for Sha256Transcript

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fn new(label: &'static [u8]) -> Self

Create a new transcript with the given domain-separation label.
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fn append_message(&mut self, label: &'static [u8], message: &[u8])

Absorb an arbitrary byte string under a label.
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fn append_u64(&mut self, label: &'static [u8], value: u64)

Absorb a u64 value under a label.
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fn challenge_bytes(&mut self, label: &'static [u8], dest: &mut [u8])

Fill dest with challenge bytes derived from the transcript state.
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fn append_point<C>( &mut self, label: &'static [u8], point: &<C as CurveArithmetic>::ProjectivePoint, )
where C: CurveArithmetic, <C as Curve>::FieldBytesSize: ModulusSize, <C as CurveArithmetic>::ProjectivePoint: ToEncodedPoint<C>,

Absorb an elliptic-curve point in compressed form.
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fn append_scalar<C>( &mut self, label: &'static [u8], scalar: &<C as CurveArithmetic>::Scalar, )
where C: CurveArithmetic, <C as Curve>::FieldBytesSize: ModulusSize, <C as CurveArithmetic>::ProjectivePoint: ToEncodedPoint<C>,

Absorb an elliptic-curve scalar in canonical representation.
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fn challenge_scalar<C>( &mut self, label: &'static [u8], ) -> <C as CurveArithmetic>::Scalar
where C: CurveArithmetic, <C as Curve>::FieldBytesSize: ModulusSize, <C as CurveArithmetic>::ProjectivePoint: ToEncodedPoint<C>,

Derive a scalar challenge from the transcript.
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fn new_dlog_proof( session_id: &[u8], party_id: usize, action: &[u8], label: &'static [u8], ) -> Self
where Self: Sized,

Construct the transcript context used by DLog proofs.

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