Struct P256Scalar

#[repr(C, align(32))]
pub struct P256Scalar(/* private fields */);

An element of the ring of integers modulo a positive integer. The element is internally represented as a fixed size array of bytes.

Caution

It is not guaranteed that the integer representation is less than the modulus. After any arithmetic operation, the honest host should normalize the result to its canonical representation less than the modulus, but guest execution does not require it.

See assert_reduced and is_reduced.

Implementations

impl P256Scalar

pub const fn from_const_bytes(bytes: [u8; 32]) -> Self

Constructor from little-endian bytes. Does not enforce the integer value of bytes must be less than the modulus.

Trait Implementations

impl<'a> Add<&'a P256Scalar> for &P256Scalar

type Output = P256Scalar

The resulting type after applying the + operator.

fn add(self, other: &'a P256Scalar) -> Self::Output

Performs the + operation.

impl<'a> Add<&'a P256Scalar> for P256Scalar

type Output = P256Scalar

The resulting type after applying the + operator.

fn add(self, other: &'a P256Scalar) -> Self::Output

Performs the + operation.

impl Add for P256Scalar

type Output = P256Scalar

The resulting type after applying the + operator.

fn add(self, other: Self) -> Self::Output

Performs the + operation.

impl<'a> AddAssign<&'a P256Scalar> for P256Scalar

fn add_assign(&mut self, other: &'a P256Scalar)

Performs the += operation.

impl AddAssign for P256Scalar

fn add_assign(&mut self, other: Self)

Performs the += operation.

impl Clone for P256Scalar

fn clone(&self) -> P256Scalar

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for P256Scalar

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for P256Scalar

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> DivAssignUnsafe<&'a P256Scalar> for P256Scalar

fn div_assign_unsafe(&mut self, other: &'a P256Scalar)

Undefined behaviour when denominator is not coprime to N

impl DivAssignUnsafe for P256Scalar

fn div_assign_unsafe(&mut self, other: Self)

Undefined behaviour when denominator is not coprime to N

impl<'a> DivUnsafe<&'a P256Scalar> for &P256Scalar

fn div_unsafe(self, other: &'a P256Scalar) -> Self::Output

Undefined behaviour when denominator is not coprime to N

type Output = P256Scalar

Output type of div_unsafe.

impl<'a> DivUnsafe<&'a P256Scalar> for P256Scalar

fn div_unsafe(self, other: &'a P256Scalar) -> Self::Output

Undefined behaviour when denominator is not coprime to N

type Output = P256Scalar

Output type of div_unsafe.

impl DivUnsafe for P256Scalar

fn div_unsafe(self, other: Self) -> Self::Output

Undefined behaviour when denominator is not coprime to N

type Output = P256Scalar

Output type of div_unsafe.

impl IntMod for P256Scalar

fn assert_reduced(&self)

If self is not in its canonical form, the proof will fail to verify. This means guest execution will never terminate (either successfully or unsuccessfully) if self is not in its canonical form.

const MODULUS: Self::Repr

Modulus as a Repr.

const ZERO: Self

The zero element (i.e. the additive identity).

const NUM_LIMBS: usize = 32usize

Number of limbs used to internally represent an element of Self.

const ONE: Self

The one element (i.e. the multiplicative identity).

type Repr = [u8; 32]

Underlying representation of IntMod. Usually of the form [u8; NUM_LIMBS].

type SelfRef<'a> = &'a P256Scalar

SelfRef<'a> should almost always be &'a Self. This is a way to include implementations of binary operations where both sides are &'a Self.

fn from_repr(repr: Self::Repr) -> Self

Creates a new IntMod from an instance of Repr. Does not enforce the integer value of bytes must be less than the modulus.

fn from_le_bytes(bytes: &[u8]) -> Self

Creates a new IntMod from an array of bytes, little endian. Does not enforce the integer value of bytes must be less than the modulus.

fn from_be_bytes(bytes: &[u8]) -> Self

Creates a new IntMod from an array of bytes, big endian. Does not enforce the integer value of bytes must be less than the modulus.

fn from_u8(val: u8) -> Self

Creates a new IntMod from a u8. Does not enforce the integer value of bytes must be less than the modulus.

fn from_u32(val: u32) -> Self

Creates a new IntMod from a u32. Does not enforce the integer value of bytes must be less than the modulus.

fn from_u64(val: u64) -> Self

Creates a new IntMod from a u64. Does not enforce the integer value of bytes must be less than the modulus.

fn as_le_bytes(&self) -> &[u8]

Value of this IntMod as an array of bytes, little endian.

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

Value of this IntMod as an array of bytes, big endian.

fn modulus_biguint() -> BigUint

Modulus N as a BigUint.

fn from_biguint(biguint: BigUint) -> Self

Creates a new IntMod from a BigUint.

fn as_biguint(&self) -> BigUint

Value of this IntMod as a BigUint.

fn neg_assign(&mut self)

fn double_assign(&mut self)

Doubles self in-place.

fn square_assign(&mut self)

Squares self in-place.

fn double(&self) -> Self

Doubles this IntMod.

fn square(&self) -> Self

Squares this IntMod.

fn cube(&self) -> Self

Cubes this IntMod.

fn is_reduced(&self) -> bool

Is the integer representation of self less than the modulus?

impl<'a> Mul<&'a P256Scalar> for &P256Scalar

type Output = P256Scalar

The resulting type after applying the * operator.

fn mul(self, other: &'a P256Scalar) -> Self::Output

Performs the * operation.

impl<'a> Mul<&'a P256Scalar> for P256Scalar

type Output = P256Scalar

The resulting type after applying the * operator.

fn mul(self, other: &'a P256Scalar) -> Self::Output

Performs the * operation.

impl Mul for P256Scalar

type Output = P256Scalar

The resulting type after applying the * operator.

fn mul(self, other: Self) -> Self::Output

Performs the * operation.

impl<'a> MulAssign<&'a P256Scalar> for P256Scalar

fn mul_assign(&mut self, other: &'a P256Scalar)

Performs the *= operation.

impl MulAssign for P256Scalar

fn mul_assign(&mut self, other: Self)

Performs the *= operation.

impl<'a> Neg for &'a P256Scalar

type Output = P256Scalar

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl Neg for P256Scalar

type Output = P256Scalar

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl PartialEq for P256Scalar

fn eq(&self, other: &Self) -> 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<'a> Product<&'a P256Scalar> for P256Scalar

fn product<I: Iterator<Item = &'a P256Scalar>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by multiplying the items.

impl Product for P256Scalar

fn product<I: Iterator<Item = Self>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by multiplying the items.

impl Reduce for P256Scalar

fn reduce_le_bytes(bytes: &[u8]) -> Self

Interpret the given bytes as an integer and perform a modular reduction.

fn reduce_be_bytes(bytes: &[u8]) -> Self

impl Serialize for P256Scalar

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> Sub<&'a P256Scalar> for P256Scalar

type Output = P256Scalar

The resulting type after applying the - operator.

fn sub(self, other: &'a P256Scalar) -> Self::Output

Performs the - operation.

impl<'a> Sub for &'a P256Scalar

type Output = P256Scalar

The resulting type after applying the - operator.

fn sub(self, other: &'a P256Scalar) -> Self::Output

Performs the - operation.

impl Sub for P256Scalar

type Output = P256Scalar

The resulting type after applying the - operator.

fn sub(self, other: Self) -> Self::Output

Performs the - operation.

impl<'a> SubAssign<&'a P256Scalar> for P256Scalar

fn sub_assign(&mut self, other: &'a P256Scalar)

Performs the -= operation.

impl SubAssign for P256Scalar

fn sub_assign(&mut self, other: Self)

Performs the -= operation.

impl<'a> Sum<&'a P256Scalar> for P256Scalar

fn sum<I: Iterator<Item = &'a P256Scalar>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by “summing up” the items.

impl Sum for P256Scalar

fn sum<I: Iterator<Item = Self>>(iter: I) -> Self

Takes an iterator and generates Self from the elements by “summing up” the items.

impl Eq for P256Scalar