Struct Envelope 

pub struct Envelope {
    pub credential: CredentialName,
    pub context: String,
    pub label: Value,
    pub nonce_b64: String,
    pub ciphertext_b64: String,
}

A label-carrying envelope (DR-0053 §13). The envelope records the caller’s IFC label and unwrap restores it, so the wrap → store → unwrap roundtrip cannot launder; AEAD associated data binds the ciphertext to (credential, context, label) so envelopes are not swappable between contexts even with every label intact (models/maude/credential-wrap-carriage.maude, -UNBOUND sibling).

Fields

credential: CredentialName

The wrapping credential. A different credential does not open the envelope.

context: String

The context the envelope was produced for; unwrap under a different context is refused by AEAD, not by comparison.

label: Value

The carried label, recorded at wrap and restored at unwrap. Opaque to the custodian: whatever the caller’s IFC layer serializes.

nonce_b64: String

ciphertext_b64: String

Trait Implementations

impl Clone for Envelope

fn clone(&self) -> Envelope

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Envelope

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Envelope

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Envelope

impl PartialEq for Envelope

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Envelope

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 Envelope