Struct CapsuleFrag

pub struct CapsuleFrag { /* private fields */ }

A reencrypted fragment of a Capsule created by a proxy.

Implementations

impl CapsuleFrag

pub fn to_bytes_simple(&self) -> Box<[u8]>

Serializes the capsule frag by concatenating the byte represenation of its constituents:

• e1 (compressed curve point, 33 bytes),
• v1 (compressed curve point, 33 bytes),
• kfrag_id (32 bytes),
• precursor (compressed curve point, 33 bytes),
• e2 (compressed curve point, 33 bytes),
• v2 (compressed curve point, 33 bytes),
• u1, the kfrag PoK commitment (compressed curve point, 33 bytes),
• u2, the kfrag PoK (compressed curve point, 33 bytes),
• signature (big-endian scalar, 32 bytes),
• kfrag_signature (ECDSA signature serialized as r and s, each a 32 byte big-endian scalar).

pub fn verify( self, capsule: &Capsule, verifying_pk: &PublicKey, delegating_pk: &PublicKey, receiving_pk: &PublicKey, ) -> Result<VerifiedCapsuleFrag, (CapsuleFragVerificationError, Self)>

Verifies the integrity of the capsule fragment, given the original capsule, the encrypting party’s key, the decrypting party’s key, and the signing key.

pub fn skip_verification(self) -> VerifiedCapsuleFrag

Explicitly skips CapsuleFrag::verify call. Useful in cases when the verifying keys are impossible to obtain independently, or when this capsule frag came from a trusted storage.

Warning: make sure you considered the implications of not enforcing verification.

Trait Implementations

impl Clone for CapsuleFrag

fn clone(&self) -> CapsuleFrag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CapsuleFrag

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

Formats the value using the given formatter.

impl<'de> DefaultDeserialize<'de> for CapsuleFrag

Available on crate feature default-serialization only.

fn from_bytes(bytes: &'de [u8]) -> Result<Self, Error>

Deserializes a bytestring into this object.

impl DefaultSerialize for CapsuleFrag

Available on crate feature default-serialization only.

fn to_bytes(&self) -> Result<Box<[u8]>, Error>

Serializes this object.

impl<'de> Deserialize<'de> for CapsuleFrag

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for CapsuleFrag

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

Formats the value using the given formatter.

impl PartialEq for CapsuleFrag

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for CapsuleFrag