# ChaCha20Core in rand_chacha - Rust
ChaCha with 20 rounds
Keywords: rust, rustlang, rust-lang, ChaCha20Core

# Struct rand_chacha::ChaCha20Core

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    pub struct ChaCha20Core { /* private fields */ }

Expand description

ChaCha with 20 rounds

## Trait Implementations

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### impl BlockRngCore for ChaCha20Core

#### type Item = u32

Results element type, e.g. `u32`.

#### type Results = Array64<u32>

Results type. This is the ‘block’ an RNG implementing `BlockRngCore` generates, which will usually be an array like `[u32; 16]`. Read more

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#### fn generate(&mut self, r: &mut Self::Results)

Generate a new block of results.

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### impl Clone for ChaCha20Core

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#### fn clone(&self) -> ChaCha20Core

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 ChaCha20Core

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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 From<ChaCha20Core> for ChaCha20Rng

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#### fn from(core: ChaCha20Core) -> Self

Converts to this type from the input type.

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### impl PartialEq<ChaCha20Core> for ChaCha20Core

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#### fn eq(&self, other: &ChaCha20Core) -> bool

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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#### fn ne(&self, other: &ChaCha20Core) -> bool

This method tests for `!=`.

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### impl SeedableRng for ChaCha20Core

#### type Seed = [ u8 ; 32]

Seed type, which is restricted to types mutably-dereferencable as `u8` arrays (we recommend `[u8; N]` for some `N`). Read more

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#### fn from_seed(seed: Self::Seed) -> Self

Create a new PRNG using the given seed. Read more

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#### fn seed_from_u64(state: u64) -> Self

Create a new PRNG using a `u64` seed. Read more

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#### fn from_rng<R>(rng: R) -> Result<Self, Error> where
R: RngCore,

Create a new PRNG seeded from another `Rng`. Read more

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#### fn from_entropy() -> Self

Creates a new instance of the RNG seeded via `getrandom`. Read more

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### impl CryptoRng for ChaCha20Core

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### impl Eq for ChaCha20Core

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### impl StructuralEq for ChaCha20Core

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### impl StructuralPartialEq for ChaCha20Core

## Auto Trait Implementations

### impl RefUnwindSafe for ChaCha20Core

### impl Send for ChaCha20Core

### impl Sync for ChaCha20Core

### impl Unpin for ChaCha20Core

### impl UnwindSafe for ChaCha20Core

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

const: unstable · source

#### 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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

const: unstable · source

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

#### 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> ToOwned for T where
T: Clone,

#### 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)

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

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>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

#### 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>,

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

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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### impl<V, T> VZip<V> for T where
V: MultiLane<T>,

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#### fn vzip(self) -> V