Struct secp256k1::curve::Scalar [−][src]
A 256-bit scalar value.
Implementations
impl Scalar[src]
impl Scalar[src]pub fn clear(&mut self)[src]
Clear a scalar to prevent the leak of sensitive data.
pub fn set_int(&mut self, v: u32)[src]
Set a scalar to an unsigned integer.
pub fn from_int(v: u32) -> Self[src]
Create a scalar from an unsigned integer.
pub fn bits(&self, offset: usize, count: usize) -> u32[src]
Access bits from a scalar. All requested bits must belong to the same 32-bit limb.
pub fn bits_var(&self, offset: usize, count: usize) -> u32[src]
Access bits from a scalar. Not constant time.
pub fn cadd_bit(&mut self, bit: usize, flag: bool)[src]
Conditionally add a power of two to a scalar. The result is not allowed to overflow.
#[must_use]pub fn set_b32(&mut self, b32: &[u8; 32]) -> Choice[src]
Set a scalar from a big endian byte array, return whether it overflowed.
pub fn b32(&self) -> [u8; 32][src]
Convert a scalar to a byte array.
pub fn fill_b32(&self, bin: &mut [u8; 32])[src]
Convert a scalar to a byte array.
pub fn is_zero(&self) -> bool[src]
Check whether a scalar equals zero.
pub fn is_one(&self) -> bool[src]
Check whether a scalar equals one.
pub fn is_high(&self) -> bool[src]
Check whether a scalar is higher than the group order divided by 2.
pub fn cond_neg_assign(&mut self, flag: Choice)[src]
Conditionally negate a number, in constant time.
impl Scalar[src]
impl Scalar[src]pub fn mul_in_place(&mut self, a: &Scalar, b: &Scalar)[src]
pub fn shr_int(&mut self, n: usize) -> u32[src]
Shift a scalar right by some amount strictly between 0 and 16, returning the low bits that were shifted off.