Struct private_currency::crypto::Opening

pub struct Opening {
    pub value: u64,
    // some fields omitted
}

Opening for a Pedersen commitment.

Theory

See Commitment docs for details on Pedersen commitments and their openings.

Arithmetic

Akin to Commitments, openings can be added and subtracted. If an over/underflow occurs when adding or subtracting committed values, a panic is raised.

Implementation details

Although committed value x is generally a scalar in the used prime-order group, we restrict it to u64. The conversion is straightforward.

Fields

value: u64

Committed value.

Methods

impl Opening

pub fn from_slice(slice: &[u8]) -> Option<Self>

Attempts to deserialize an opening from a slice.

pub fn to_bytes(&self) -> Vec<u8>

Serializes this opening to bytes.

Implementation details

Serialization consists of a committed value (8 bytes, little-endian) and a Ristretto scalar (32 bytes).

Trait Implementations

impl Clone for Opening

fn clone(&self) -> Opening

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for Opening

impl PartialEq<Opening> for Opening

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Debug for Opening

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

Formats the value using the given formatter.

impl Sub<Opening> for Opening

type Output = Self

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self

Performs the - operation.

impl<'a, 'b> Sub<&'b Opening> for &'a Opening

type Output = Opening

The resulting type after applying the - operator.

fn sub(self, rhs: &'b Opening) -> Opening

Performs the - operation.

impl Add<Opening> for Opening

type Output = Self

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self

Performs the + operation.

impl AddAssign<Opening> for Opening

fn add_assign(&mut self, rhs: Self)

Performs the += operation.

impl SubAssign<Opening> for Opening

fn sub_assign(&mut self, rhs: Self)

Performs the -= operation.