Module scalar 

P-256 scalar field helpers.

Wraps p256::Scalar operations needed for Shamir secret sharing and Lagrange interpolation.

Functions

random_scalar

Generate a random scalar.

scalar_add

Add two scalars.

scalar_from_bytes

Convert raw big-endian bytes (32 bytes) into a Scalar. Returns None if bytes are not 32 long or if the value is out of range.

scalar_invert

Modular inverse of a scalar (1/a mod n). Returns ZERO if a is zero.

scalar_mul

Multiply two scalars.

scalar_sub

Subtract one scalar from another.

scalar_to_bytes

Convert a Scalar to 32 big-endian bytes.