Enum PublicCommitment

pub enum PublicCommitment {
    Open(Fr, G1Affine),
    Closed(G1Affine),
}

Use an enum to show that the commitments can be open, including the random value, or closed, which is secure.

Variants

Open(Fr, G1Affine)

An Open commitment includes the random value, which is the [BlsFr] here. It should never be sent to an untrusted party, as they can get some knowledge of the original value with it.

Closed(G1Affine)

A Closed commitment is stripped of its random value and can safely be shared with untrusted parties.

Implementations

impl PublicCommitment

pub fn from_message(setup: &mut PublicSetup, message: &BlsFr) -> Self

Create a new commitment from a scalar. This returns an Open commitment, including the random value.

pub fn close(self) -> Self

Close this commitment by discarding the random value. For security, this consumes the PublicCommitment.

pub fn rand(&self) -> BlsFr

Returns the random value of this commitment. If the commitment is closed, it panics.

pub fn affine(&self) -> BlsG1Affine

Returns the affine, public, value of this commitment, which is always available.

pub fn assert_closed(&self)

Make sure the commitment has been closed.

Trait Implementations

impl CanonicalSerialize for PublicCommitment

fn serialize_with_mode<W: Write>( &self, writer: W, mode: Compress, ) -> Result<(), SerializationError>

The general serialize method that takes in customization flags.

fn serialized_size(&self, mode: Compress) -> usize

fn serialize_compressed<W>(&self, writer: W) -> Result<(), SerializationError>

where W: Write,

fn compressed_size(&self) -> usize

fn serialize_uncompressed<W>(&self, writer: W) -> Result<(), SerializationError>

where W: Write,

fn uncompressed_size(&self) -> usize

impl Clone for PublicCommitment

fn clone(&self) -> PublicCommitment

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PublicCommitment

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

Formats the value using the given formatter.