Struct Scalar

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

Representation of a single BLS12-381 scalar value.

Implementations

impl Scalar

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

Convert scalar into bytes

pub fn try_to_safe_bytes(&self) -> Option<[u8; 31]>

Convert scalar into safe bytes, returns None if not possible to convert due to larger internal value

pub fn slice_to_repr(value: &[Self]) -> &[FsFr]

Convenient conversion from slice of scalar to underlying representation for efficiency purposes.

pub fn slice_from_repr(value: &[FsFr]) -> &[Self]

Convenient conversion from slice of underlying representation to scalar for efficiency purposes.

pub fn slice_option_to_repr(value: &[Option<Self>]) -> &[Option<FsFr>]

Convenient conversion from slice of optional scalar to underlying representation for efficiency purposes.

pub fn slice_option_from_repr(value: &[Option<FsFr>]) -> &[Option<Self>]

Convenient conversion from slice of optional underlying representation to scalar for efficiency purposes.

pub fn slice_mut_to_repr(value: &mut [Self]) -> &mut [FsFr]

Convenient conversion from mutable slice of scalar to underlying representation for efficiency purposes.

pub fn slice_mut_from_repr(value: &mut [FsFr]) -> &mut [Self]

Convenient conversion from mutable slice of underlying representation to scalar for efficiency purposes.

pub fn slice_option_mut_to_repr( value: &mut [Option<Self>], ) -> &mut [Option<FsFr>]

Convenient conversion from optional mutable slice of scalar to underlying representation for efficiency purposes.

pub fn slice_option_mut_from_repr( value: &mut [Option<FsFr>], ) -> &mut [Option<Self>]

Convenient conversion from optional mutable slice of underlying representation to scalar for efficiency purposes.

pub fn vec_to_repr(value: Vec<Self>) -> Vec<FsFr>

Convenient conversion from vector of scalar to underlying representation for efficiency purposes.

pub fn vec_from_repr(value: Vec<FsFr>) -> Vec<Self>

Convenient conversion from vector of underlying representation to scalar for efficiency purposes.

pub fn vec_option_to_repr(value: Vec<Option<Self>>) -> Vec<Option<FsFr>>

Convenient conversion from vector of optional scalar to underlying representation for efficiency purposes.

pub fn vec_option_from_repr(value: Vec<Option<FsFr>>) -> Vec<Option<Self>>

Convenient conversion from vector of optional underlying representation to scalar for efficiency purposes.

Trait Implementations

impl Clone for Scalar

fn clone(&self) -> Scalar

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Scalar

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

Formats the value using the given formatter.

impl Default for Scalar

fn default() -> Scalar

Returns the “default value” for a type.

impl Deref for Scalar

type Target = FsFr

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for Scalar

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl From<&[u8; 31]> for Scalar

fn from(value: &[u8; 31]) -> Self

Converts to this type from the input type.

impl From<&Scalar> for [u8; 32]

fn from(value: &Scalar) -> Self

Converts to this type from the input type.

impl From<&Scalar> for ScalarBytes

fn from(value: &Scalar) -> Self

Converts to this type from the input type.

impl From<[u8; 31]> for Scalar

fn from(value: [u8; 31]) -> Self

Converts to this type from the input type.

impl From<Scalar> for [u8; 32]

fn from(value: Scalar) -> Self

Converts to this type from the input type.

impl From<Scalar> for ScalarBytes

fn from(value: Scalar) -> Self

Converts to this type from the input type.

impl PartialEq for Scalar

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<&[u8; 32]> for Scalar

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: &[u8; 32]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&ScalarBytes> for Scalar

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: &ScalarBytes) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<[u8; 32]> for Scalar

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: [u8; 32]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ScalarBytes> for Scalar

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: ScalarBytes) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Scalar

impl Eq for Scalar

impl StructuralPartialEq for Scalar