lexe::types

Struct SysRng

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

A compatibility wrapper so we can use ring’s PRG with rand traits.

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impl SysRng

pub fn new() -> SysRng

Trait Implementations§

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impl Clone for SysRng

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fn clone(&self) -> SysRng

Returns a duplicate 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 SysRng

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

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

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fn default() -> SysRng

Returns the “default value” for a type. Read more
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impl EntropySource for SysRng

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

Gets a unique, cryptographically-secure, random 32-byte value. This method must return a different value each time it is called.
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impl RngCore for SysRng

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fn next_u32(&mut self) -> u32

Return the next random u32. Read more
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fn next_u64(&mut self) -> u64

Return the next random u64. Read more
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fn fill_bytes(&mut self, dest: &mut [u8])

Fill dest with random data. Read more
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fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>

Fill dest entirely with random data. Read more
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impl CryptoRng for SysRng

[ring::rand::SystemRandom] is a cryptographically secure PRG

Auto Trait Implementations§

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impl Freeze for SysRng

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impl RefUnwindSafe for SysRng

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impl Send for SysRng

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impl Sync for SysRng

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impl Unpin for SysRng

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impl UnwindSafe for SysRng

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<F, T, U> Apply<F, U> for T
where F: FnOnce(T) -> U,

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fn apply(self, f: F) -> U

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impl<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<R> Crng for R
where R: RngCore + CryptoRng,

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fn gen_secp256k1_ctx(&mut self) -> Secp256k1<All>

Helper to get a secp256k1 context randomized for side-channel resistance. Suitable for both signing and signature verification. Use this function instead of calling [Secp256k1::new] directly.
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fn gen_secp256k1_ctx_signing(&mut self) -> Secp256k1<SignOnly>

Helper to get a secp256k1 context randomized for side-channel resistance. This context can only sign, not verify. Use this function instead of calling [Secp256k1::new] directly.
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impl<T> CryptoRngCore for T
where T: CryptoRng + RngCore,

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fn as_rngcore(&mut self) -> &mut dyn RngCore

Upcast to an RngCore trait object.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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impl<R> Rng for R
where R: RngCore + ?Sized,

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fn gen<T>(&mut self) -> T
where Standard: Distribution<T>,

Return a random value supporting the Standard distribution. Read more
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fn gen_range<T, R>(&mut self, range: R) -> T
where T: SampleUniform, R: SampleRange<T>,

Generate a random value in the given range. Read more
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fn sample<T, D>(&mut self, distr: D) -> T
where D: Distribution<T>,

Sample a new value, using the given distribution. Read more
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fn sample_iter<T, D>(self, distr: D) -> DistIter<D, Self, T>
where D: Distribution<T>, Self: Sized,

Create an iterator that generates values using the given distribution. Read more
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fn fill<T>(&mut self, dest: &mut T)
where T: Fill + ?Sized,

Fill any type implementing Fill with random data Read more
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fn try_fill<T>(&mut self, dest: &mut T) -> Result<(), Error>
where T: Fill + ?Sized,

Fill any type implementing Fill with random data Read more
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fn gen_bool(&mut self, p: f64) -> bool

Return a bool with a probability p of being true. Read more
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fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool

Return a bool with a probability of numerator/denominator of being true. I.e. gen_ratio(2, 3) has chance of 2 in 3, or about 67%, of returning true. If numerator == denominator, then the returned value is guaranteed to be true. If numerator == 0, then the returned value is guaranteed to be false. Read more
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impl<R> RngExt for R
where R: RngCore + Rng,

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fn gen_boolean(&mut self) -> bool

Named gen_boolean to avoid ambiguity with Rng::gen_bool.

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fn gen_f32(&mut self) -> f32

Generates a f32 uniformly distributed in [0, 1).

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fn gen_f64(&mut self) -> f64

Generates a f64 uniformly distributed in [0, 1).

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fn gen_bytes<const N: usize>(&mut self) -> [u8; N]

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fn gen_alphanum_bytes<const N: usize>(&mut self) -> [u8; N]

Generate N (nearly uniformly random) alphanumeric (0-9, A-Z, a-z) bytes.
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fn gen_u8(&mut self) -> u8

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fn gen_u16(&mut self) -> u16

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fn gen_u32(&mut self) -> u32

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fn gen_u64(&mut self) -> u64

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fn gen_u128(&mut self) -> u128

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more