Struct ElGamalCiphertext

pub struct ElGamalCiphertext {
    pub commitment: PedersenCommitment,
    pub handle: DecryptHandle,
}

Ciphertext for the ElGamal encryption scheme.

Fields

commitment: PedersenCommitment

handle: DecryptHandle

Implementations

impl ElGamalCiphertext

pub fn add_amount<T: Into<Scalar>>(&self, amount: T) -> Self

pub fn subtract_amount<T: Into<Scalar>>(&self, amount: T) -> Self

pub fn to_bytes(&self) -> [u8; 64]

pub fn from_bytes(bytes: &[u8]) -> Option<ElGamalCiphertext>

pub fn decrypt(&self, secret: &ElGamalSecretKey) -> DiscreteLog

Decrypts the ciphertext using an ElGamal secret key.

The output of this function is of type DiscreteLog. To recover, the originally encrypted amount, use DiscreteLog::decode.

pub fn decrypt_u32(&self, secret: &ElGamalSecretKey) -> Option<u64>

Decrypts the ciphertext using an ElGamal secret key assuming that the message is a positive 32-bit number.

If the originally encrypted amount is not a positive 32-bit number, then the function returns None.

Trait Implementations

impl<'a, 'b> Add<&'b ElGamalCiphertext> for &'a ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the + operator.

fn add(self, ciphertext: &'b ElGamalCiphertext) -> ElGamalCiphertext

Performs the + operation.

impl<'b> Add<&'b ElGamalCiphertext> for ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the + operator.

fn add(self, rhs: &'b ElGamalCiphertext) -> ElGamalCiphertext

Performs the + operation.

impl<'a> Add<ElGamalCiphertext> for &'a ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add for ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the + operator.

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

Performs the + operation.

impl Clone for ElGamalCiphertext

fn clone(&self) -> ElGamalCiphertext

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ElGamalCiphertext

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

Formats the value using the given formatter.

impl Default for ElGamalCiphertext

fn default() -> ElGamalCiphertext

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ElGamalCiphertext

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ElGamalCiphertext

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

Formats the value using the given formatter.

impl From<ElGamalCiphertext> for ElGamalCiphertext

fn from(decoded_ciphertext: ElGamalCiphertext) -> Self

Converts to this type from the input type.

impl<'a, 'b> Mul<&'b ElGamalCiphertext> for &'a Scalar

type Output = ElGamalCiphertext

The resulting type after applying the * operator.

fn mul(self, ciphertext: &'b ElGamalCiphertext) -> ElGamalCiphertext

Performs the * operation.

impl<'b> Mul<&'b ElGamalCiphertext> for Scalar

type Output = ElGamalCiphertext

The resulting type after applying the * operator.

fn mul(self, rhs: &'b ElGamalCiphertext) -> ElGamalCiphertext

Performs the * operation.

impl<'a, 'b> Mul<&'b Scalar> for &'a ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the * operator.

fn mul(self, scalar: &'b Scalar) -> ElGamalCiphertext

Performs the * operation.

impl<'b> Mul<&'b Scalar> for ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the * operator.

fn mul(self, rhs: &'b Scalar) -> ElGamalCiphertext

Performs the * operation.

impl<'a> Mul<ElGamalCiphertext> for &'a Scalar

type Output = ElGamalCiphertext

The resulting type after applying the * operator.

fn mul(self, rhs: ElGamalCiphertext) -> ElGamalCiphertext

Performs the * operation.

impl Mul<ElGamalCiphertext> for Scalar

type Output = ElGamalCiphertext

The resulting type after applying the * operator.

fn mul(self, rhs: ElGamalCiphertext) -> ElGamalCiphertext

Performs the * operation.

impl<'a> Mul<Scalar> for &'a ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the * operator.

fn mul(self, rhs: Scalar) -> ElGamalCiphertext

Performs the * operation.

impl Mul<Scalar> for ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the * operator.

fn mul(self, rhs: Scalar) -> ElGamalCiphertext

Performs the * operation.

impl PartialEq for ElGamalCiphertext

fn eq(&self, other: &ElGamalCiphertext) -> 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 ElGamalCiphertext

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

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

type Output = ElGamalCiphertext

The resulting type after applying the - operator.

fn sub(self, ciphertext: &'b ElGamalCiphertext) -> ElGamalCiphertext

Performs the - operation.

impl<'b> Sub<&'b ElGamalCiphertext> for ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the - operator.

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

Performs the - operation.

impl<'a> Sub<ElGamalCiphertext> for &'a ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the - operator.

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

Performs the - operation.

impl Sub for ElGamalCiphertext

type Output = ElGamalCiphertext

The resulting type after applying the - operator.

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

Performs the - operation.

impl TryFrom<ElGamalCiphertext> for ElGamalCiphertext

type Error = ElGamalError

The type returned in the event of a conversion error.

fn try_from(pod_ciphertext: ElGamalCiphertext) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for ElGamalCiphertext

impl Eq for ElGamalCiphertext

impl StructuralPartialEq for ElGamalCiphertext