pub struct GroestlDigestCompression<F: BinaryField + From<AESTowerField8b> + Into<AESTowerField8b>> { /* private fields */ }
Expand description

A compression function for Grøstl hash digests based on the Grøstl output transformation.

This is a 512-bit to 256-bit compression function. This does not apply the full Grøstl hash algorithm to a 512-bit input. Instead, this compression function applies just the Grøstl output transformation, which is believed to be one-way and collision-resistant.

§Security justification

The Grøstl output transformation in Grøstl Section 3.3 is argued to be one-way and collision-resistant in multiple ways. First, in Section 4.6, the authors argue that the output transformation is an instance of the Matyas-Meyer-Oseas construction followed by a truncation. Second, in Section 5.1, the authors show that the output transformation is a call to the 1024-to-512-bit compression function on a 0-padded input followed by an XOR with a constant and a truncation.

Trait Implementations§

source§

impl<F: Clone + BinaryField + From<AESTowerField8b> + Into<AESTowerField8b>> Clone for GroestlDigestCompression<F>

source§

fn clone(&self) -> GroestlDigestCompression<F>

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
source§

impl<F: Debug + BinaryField + From<AESTowerField8b> + Into<AESTowerField8b>> Debug for GroestlDigestCompression<F>

source§

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

Formats the value using the given formatter. Read more
source§

impl<F: Default + BinaryField + From<AESTowerField8b> + Into<AESTowerField8b>> Default for GroestlDigestCompression<F>

source§

fn default() -> GroestlDigestCompression<F>

Returns the “default value” for a type. Read more
source§

impl<F> PseudoCompressionFunction<<ScaledUnderlier<M128, 2> as PackScalar<F>>::Packed, 2> for GroestlDigestCompression<F>

source§

fn compress(&self, input: [GroestlDigest<F>; 2]) -> GroestlDigest<F>

source§

impl<F> CompressionFunction<<ScaledUnderlier<M128, 2> as PackScalar<F>>::Packed, 2> for GroestlDigestCompression<F>

Auto Trait Implementations§

§

impl<F> Freeze for GroestlDigestCompression<F>
where F: ExtensionField<BinaryField1b, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F> + MulAssign<BinaryField1b> + SubAssign<BinaryField1b> + AddAssign<BinaryField1b> + Mul<BinaryField1b> + Sub<BinaryField1b> + Add<BinaryField1b> + TryInto<BinaryField1b> + From<BinaryField1b> + Field + WithUnderlier + Zeroable + InvertOrZero + Square + for<'a> MulAssign<&'a F> + for<'a> SubAssign<&'a F> + for<'a> AddAssign<&'a F> + MulAssign + SubAssign + AddAssign + for<'a> Product<&'a F> + for<'a> Sum<&'a F> + for<'a> Mul<&'a F> + for<'a> Sub<&'a F> + for<'a> Add<&'a F> + Product + Sum + Mul + Sub + Add + Neg + Debug + Sync + Send + Default + Clone + Copy + Eq + PartialEq + 'static, <F as WithUnderlier>::Underlier: PackScalar<F> + UnderlierType + Sync + Send + Zeroable + NoUninit + Random + Copy + Clone + ConstantTimeEq + Eq + PartialEq + Default + Debug + Sized + 'static,

§

impl<F> RefUnwindSafe for GroestlDigestCompression<F>
where F: ExtensionField<BinaryField1b, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F> + MulAssign<BinaryField1b> + SubAssign<BinaryField1b> + AddAssign<BinaryField1b> + Mul<BinaryField1b> + Sub<BinaryField1b> + Add<BinaryField1b> + TryInto<BinaryField1b> + From<BinaryField1b> + Field + WithUnderlier + Zeroable + InvertOrZero + Square + for<'a> MulAssign<&'a F> + for<'a> SubAssign<&'a F> + for<'a> AddAssign<&'a F> + MulAssign + SubAssign + AddAssign + for<'a> Product<&'a F> + for<'a> Sum<&'a F> + for<'a> Mul<&'a F> + for<'a> Sub<&'a F> + for<'a> Add<&'a F> + Product + Sum + Mul + Sub + Add + Neg + Debug + Sync + Send + Default + Clone + Copy + Eq + PartialEq + 'static + RefUnwindSafe, <F as WithUnderlier>::Underlier: PackScalar<F> + UnderlierType + Sync + Send + Zeroable + NoUninit + Random + Copy + Clone + ConstantTimeEq + Eq + PartialEq + Default + Debug + Sized + 'static,

§

impl<F> Send for GroestlDigestCompression<F>
where F: ExtensionField<BinaryField1b, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F> + MulAssign<BinaryField1b> + SubAssign<BinaryField1b> + AddAssign<BinaryField1b> + Mul<BinaryField1b> + Sub<BinaryField1b> + Add<BinaryField1b> + TryInto<BinaryField1b> + From<BinaryField1b> + Field + WithUnderlier + Zeroable + InvertOrZero + Square + for<'a> MulAssign<&'a F> + for<'a> SubAssign<&'a F> + for<'a> AddAssign<&'a F> + MulAssign + SubAssign + AddAssign + for<'a> Product<&'a F> + for<'a> Sum<&'a F> + for<'a> Mul<&'a F> + for<'a> Sub<&'a F> + for<'a> Add<&'a F> + Product + Sum + Mul + Sub + Add + Neg + Debug + Sync + Send + Default + Clone + Copy + Eq + PartialEq + 'static, <F as WithUnderlier>::Underlier: PackScalar<F> + UnderlierType + Sync + Send + Zeroable + NoUninit + Random + Copy + Clone + ConstantTimeEq + Eq + PartialEq + Default + Debug + Sized + 'static,

§

impl<F> Sync for GroestlDigestCompression<F>
where F: ExtensionField<BinaryField1b, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F> + MulAssign<BinaryField1b> + SubAssign<BinaryField1b> + AddAssign<BinaryField1b> + Mul<BinaryField1b> + Sub<BinaryField1b> + Add<BinaryField1b> + TryInto<BinaryField1b> + From<BinaryField1b> + Field + WithUnderlier + Zeroable + InvertOrZero + Square + for<'a> MulAssign<&'a F> + for<'a> SubAssign<&'a F> + for<'a> AddAssign<&'a F> + MulAssign + SubAssign + AddAssign + for<'a> Product<&'a F> + for<'a> Sum<&'a F> + for<'a> Mul<&'a F> + for<'a> Sub<&'a F> + for<'a> Add<&'a F> + Product + Sum + Mul + Sub + Add + Neg + Debug + Sync + Send + Default + Clone + Copy + Eq + PartialEq + 'static, <F as WithUnderlier>::Underlier: PackScalar<F> + UnderlierType + Sync + Send + Zeroable + NoUninit + Random + Copy + Clone + ConstantTimeEq + Eq + PartialEq + Default + Debug + Sized + 'static,

§

impl<F> Unpin for GroestlDigestCompression<F>
where F: ExtensionField<BinaryField1b, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F> + MulAssign<BinaryField1b> + SubAssign<BinaryField1b> + AddAssign<BinaryField1b> + Mul<BinaryField1b> + Sub<BinaryField1b> + Add<BinaryField1b> + TryInto<BinaryField1b> + From<BinaryField1b> + Field + WithUnderlier + Zeroable + InvertOrZero + Square + for<'a> MulAssign<&'a F> + for<'a> SubAssign<&'a F> + for<'a> AddAssign<&'a F> + MulAssign + SubAssign + AddAssign + for<'a> Product<&'a F> + for<'a> Sum<&'a F> + for<'a> Mul<&'a F> + for<'a> Sub<&'a F> + for<'a> Add<&'a F> + Product + Sum + Mul + Sub + Add + Neg + Debug + Sync + Send + Default + Clone + Copy + Eq + PartialEq + 'static + Unpin, <F as WithUnderlier>::Underlier: PackScalar<F> + UnderlierType + Sync + Send + Zeroable + NoUninit + Random + Copy + Clone + ConstantTimeEq + Eq + PartialEq + Default + Debug + Sized + 'static,

§

impl<F> UnwindSafe for GroestlDigestCompression<F>
where F: ExtensionField<BinaryField1b, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F, Output = F> + MulAssign<BinaryField1b> + SubAssign<BinaryField1b> + AddAssign<BinaryField1b> + Mul<BinaryField1b> + Sub<BinaryField1b> + Add<BinaryField1b> + TryInto<BinaryField1b> + From<BinaryField1b> + Field + WithUnderlier + Zeroable + InvertOrZero + Square + for<'a> MulAssign<&'a F> + for<'a> SubAssign<&'a F> + for<'a> AddAssign<&'a F> + MulAssign + SubAssign + AddAssign + for<'a> Product<&'a F> + for<'a> Sum<&'a F> + for<'a> Mul<&'a F> + for<'a> Sub<&'a F> + for<'a> Add<&'a F> + Product + Sum + Mul + Sub + Add + Neg + Debug + Sync + Send + Default + Clone + Copy + Eq + PartialEq + 'static + UnwindSafe, <F as WithUnderlier>::Underlier: PackScalar<F> + UnderlierType + Sync + Send + Zeroable + NoUninit + Random + Copy + Clone + ConstantTimeEq + Eq + PartialEq + Default + Debug + Sized + 'static,

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

§

impl<T> Instrument for T

§

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

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

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

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.

source§

impl<T> IntoEither for T

source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
§

impl<T> Pointable for T

§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

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

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

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.
source§

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

Performs the conversion.
§

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

§

fn vzip(self) -> V

§

impl<T> WithSubscriber for T

§

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
§

fn with_current_subscriber(self) -> WithDispatch<Self>

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