Struct Scalar

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

P-192 scalar: integers mod n, where n = 0xFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF (curve order).

Implementations

impl Scalar

pub fn new(data: [u8; 24]) -> Result<Self>

Create a scalar from raw bytes with reduction mod n. Ensures result ∈ [1, n−1]. Errors if result = 0.

pub fn from_secret_buffer( buffer: SecretBuffer<P192_SCALAR_SIZE>, ) -> Result<Self>

Create from existing SecretBuffer (applies reduction & zero check)

pub fn as_secret_buffer(&self) -> &SecretBuffer<P192_SCALAR_SIZE>

Access the underlying SecretBuffer

pub fn serialize(&self) -> [u8; 24]

Serialize to big‐endian bytes

pub fn deserialize(bytes: &[u8]) -> Result<Self>

Deserialize from bytes (with validation)

pub fn is_zero(&self) -> bool

Is this scalar zero?

pub fn add_mod_n(&self, other: &Self) -> Result<Self>

Add two scalars mod n

pub fn sub_mod_n(&self, other: &Self) -> Result<Self>

Subtract two scalars mod n

pub fn mul_mod_n(&self, other: &Self) -> Result<Self>

Multiply two scalars mod n (double‐and‐add)

pub fn inv_mod_n(&self) -> Result<Self>

Compute inverse mod n via Fermat (n − 2)

pub fn negate(&self) -> Self

Negate mod n: (n - self) if ≠ 0

Trait Implementations

impl Clone for Scalar

fn clone(&self) -> Scalar

Returns a duplicate 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 Drop for Scalar

fn drop(&mut self)

Executes the destructor for this type.

impl Zeroize for Scalar

fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.