Struct schnorrkel::vrf::VRFPreOut

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pub struct VRFPreOut(pub [u8; 32]);
Expand description

VRF pre-output, possibly unverified.

Internally, we keep both RistrettoPoint and CompressedRistretto forms using RistrettoBoth.

We’d actually love to statically distinguish here between inputs and outputs, as well as whether outputs were verified, but doing so would disrupt our general purpose DLEQ proof mechanism, so users must be responsible for this themselves. We do however consume by value in actual output methods, and do not implement Copy, as a reminder that VRF outputs should only be used once and should be checked before usage.

Tuple Fields§

§0: [u8; 32]

Implementations§

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impl VRFPreOut

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pub fn to_bytes(&self) -> [u8; 32]

Convert this VRF output to a byte array.

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pub fn as_bytes(&self) -> &[u8; 32]

View this secret key as a byte array.

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pub fn from_bytes(bytes: &[u8]) -> SignatureResult<VRFPreOut>

Construct a VRFPreOut from a slice of bytes.

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pub fn attach_input_hash<T>( &self, public: &PublicKey, t: T, ) -> SignatureResult<VRFInOut>
where T: VRFSigningTranscript,

Pair a non-malleable VRF output with the hash of the given transcript.

Trait Implementations§

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impl Clone for VRFPreOut

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fn clone(&self) -> VRFPreOut

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for VRFPreOut

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for VRFPreOut

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fn default() -> VRFPreOut

Returns the “default value” for a type. Read more
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impl Hash for VRFPreOut

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for VRFPreOut

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fn cmp(&self, other: &VRFPreOut) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for VRFPreOut

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fn eq(&self, other: &VRFPreOut) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for VRFPreOut

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fn partial_cmp(&self, other: &VRFPreOut) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Copy for VRFPreOut

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impl Eq for VRFPreOut

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impl StructuralPartialEq for VRFPreOut

Auto Trait Implementations§

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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