Struct MAC 

pub struct MAC<G: AffineRepr> {
    pub A: G,
    pub e: G::ScalarField,
    pub s: G::ScalarField,
}

MAC of list of messages

Fields

A: G

e: G::ScalarField

Called r in the paper

s: G::ScalarField

Implementations

impl<G: AffineRepr> MAC<G>

pub fn new<R: RngCore>( rng: &mut R, messages: &[G::ScalarField], secret_key: &SecretKey<G::ScalarField>, params: impl AsRef<MACParams<G>>, ) -> Result<Self, KVACError>

pub fn new_with_committed_messages<R: RngCore>( rng: &mut R, commitment: &G, uncommitted_messages: BTreeMap<usize, &G::ScalarField>, sk: &SecretKey<G::ScalarField>, params: impl AsRef<MACParams<G>>, ) -> Result<Self, KVACError>

Issuer creates a MAC on some blinded attributes. This is for “Blind Issuance” mentioned in section 4.2 of the paper with a modification, the issuer does not contribute any randomness that goes towards s

pub fn verify( &self, messages: &[G::ScalarField], sk: impl AsRef<G::ScalarField>, params: impl AsRef<MACParams<G>>, ) -> Result<(), KVACError>

pub fn unblind(self, blinding: &G::ScalarField) -> Self

Used to unblind a blinded MAC from signer

Trait Implementations

impl<G: AffineRepr> CanonicalDeserialize for MAC<G>

fn deserialize_with_mode<R: Read>( reader: R, compress: Compress, validate: Validate, ) -> Result<Self, SerializationError>

The general deserialize method that takes in customization flags.

fn deserialize_compressed<R>(reader: R) -> Result<Self, SerializationError>

where R: Read,

fn deserialize_compressed_unchecked<R>( reader: R, ) -> Result<Self, SerializationError>

where R: Read,

fn deserialize_uncompressed<R>(reader: R) -> Result<Self, SerializationError>

where R: Read,

fn deserialize_uncompressed_unchecked<R>( reader: R, ) -> Result<Self, SerializationError>

where R: Read,

impl<G: AffineRepr> CanonicalSerialize for MAC<G>

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

The general serialize method that takes in customization flags.

fn serialized_size(&self, compress: 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<G: Clone + AffineRepr> Clone for MAC<G>

where G::ScalarField: Clone,

fn clone(&self) -> MAC<G>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<G: Debug + AffineRepr> Debug for MAC<G>

where G::ScalarField: Debug,

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

Formats the value using the given formatter.

impl<'de, G: AffineRepr> Deserialize<'de> for MAC<G>

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<G: AffineRepr> Drop for MAC<G>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl<G: Eq + AffineRepr> Eq for MAC<G>

where G::ScalarField: Eq,

impl<G: PartialEq + AffineRepr> PartialEq for MAC<G>

where G::ScalarField: PartialEq,

fn eq(&self, other: &MAC<G>) -> 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<G: AffineRepr> Serialize for MAC<G>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<G: AffineRepr> StructuralPartialEq for MAC<G>

impl<G: AffineRepr> Valid for MAC<G>

fn check(&self) -> Result<(), SerializationError>

fn batch_check<'a>( batch: impl Iterator<Item = &'a Self> + Send, ) -> Result<(), SerializationError>

where Self: 'a,

impl<G> Zeroize for MAC<G>

where G: Zeroize + AffineRepr,

fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.