Struct BlindSignature

pub struct BlindSignature { /* private fields */ }

A BBS+ blind signature structurally identical to Signature but is used to help with misuse and confusion.

Implementations

impl BlindSignature

pub fn new( commitment: &Commitment, messages: &BTreeMap<usize, SignatureMessage>, signkey: &SecretKey, verkey: &PublicKey, ) -> Result<Self, BBSError>

1 or more messages have been hidden by the signature recipient. The remaining known messages are in messages. The generator to which they correspond is in message_indices.

commitment: h₀^s * h_[i]^m_i messages: Messages to be signed where each value is 0 < m ≤ r and the key is the index in the public.h to which is used as base signkey: The secret key for signing verkey: The corresponding public key to secret key

pub fn to_unblinded(&self, blinding: &SignatureBlinding) -> Signature

Once signature on committed attributes (blind signature) is received, the signature needs to be unblinded. Takes the blinding factor used in the commitment.

pub fn to_bytes_compressed_form(&self) -> [u8; 112]

Convert to raw bytes form

pub fn to_bytes_uncompressed_form(&self) -> [u8; 160]

Convert to raw bytes form

Trait Implementations

impl Clone for BlindSignature

fn clone(&self) -> BlindSignature

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BlindSignature

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

Formats the value using the given formatter.

impl Default for BlindSignature

fn default() -> Self

Returns the “default value” for a type.

impl<'a> Deserialize<'a> for BlindSignature

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'a>,

Deserialize this value from the given Serde deserializer.

impl Display for BlindSignature

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

Formats the value using the given formatter.

impl From<&[u8; 112]> for BlindSignature

fn from(data: &[u8; 112]) -> Self

Converts to this type from the input type.

impl From<&[u8; 160]> for BlindSignature

fn from(data: &[u8; 160]) -> Self

Converts to this type from the input type.

impl From<[u8; 112]> for BlindSignature

fn from(data: [u8; 112]) -> Self

Converts to this type from the input type.

impl From<[u8; 160]> for BlindSignature

fn from(data: [u8; 160]) -> Self

Converts to this type from the input type.

impl From<Box<[u8]>> for BlindSignature

fn from(data: Box<[u8]>) -> BlindSignature

Converts to this type from the input type.

impl Into<Box<[u8]>> for BlindSignature

fn into(self) -> Box<[u8]>

Converts this type into the (usually inferred) input type.

impl PartialEq for BlindSignature

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for BlindSignature

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&[u8]> for BlindSignature

type Error = BBSError

The type returned in the event of a conversion error.

fn try_from(value: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Vec<u8>> for BlindSignature

type Error = BBSError

The type returned in the event of a conversion error.

fn try_from(value: Vec<u8>) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for BlindSignature

impl Eq for BlindSignature

impl StructuralPartialEq for BlindSignature