Struct KeyAuthorization 

pub struct KeyAuthorization {
    pub chain_id: u64,
    pub key_type: SignatureType,
    pub key_id: Address,
    pub expiry: Option<u64>,
    pub limits: Option<Vec<TokenLimit>>,
}

Key authorization for provisioning access keys

Used in TempoTransaction to add a new key to the AccountKeychain precompile. The transaction must be signed by the root key to authorize adding this access key.

RLP encoding: [key_type, key_id, expiry?, limits?]

• Non-optional fields come first, followed by optional (trailing) fields
• expiry: None (omitted or 0x80) = key never expires, Some(timestamp) = expires at timestamp
• limits: None (omitted or 0x80) = unlimited spending, Some([]) = no spending, Some([...]) = specific limits

Fields

chain_id: u64

Chain ID for replay protection (0 = valid on any chain)

key_type: SignatureType

Type of key being authorized (Secp256k1, P256, or WebAuthn)

key_id: Address

Key identifier, is the address derived from the public key of the key type.

expiry: Option<u64>

Unix timestamp when key expires.

• None (RLP 0x80) = key never expires (stored as u64::MAX in precompile)
• Some(timestamp) = key expires at this timestamp

limits: Option<Vec<TokenLimit>>

TIP20 spending limits for this key.

• None (RLP 0x80) = unlimited spending (no limits enforced)
• Some([]) = no spending allowed (enforce_limits=true but no tokens allowed)
• Some([TokenLimit{...}]) = specific limits enforced

Implementations

impl KeyAuthorization

pub fn signature_hash(&self) -> FixedBytes<32>

Computes the authorization message hash for this key authorization.

pub fn has_unlimited_spending(&self) -> bool

Returns whether this key has unlimited spending (limits is None)

pub fn never_expires(&self) -> bool

Returns whether this key never expires (expiry is None)

pub fn into_signed( self, signature: PrimitiveSignature, ) -> SignedKeyAuthorization

Convert the key authorization into a SignedKeyAuthorization with a signature.

Trait Implementations

impl<'a> Arbitrary<'a> for KeyAuthorization

Available on crate features arbitrary only.

fn arbitrary(u: &mut Unstructured<'a>) -> Result<KeyAuthorization, Error>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl Clone for KeyAuthorization

fn clone(&self) -> KeyAuthorization

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KeyAuthorization

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

Formats the value using the given formatter.

impl Decodable for KeyAuthorization

fn decode(b: &mut &[u8]) -> Result<KeyAuthorization, Error>

Decodes the blob into the appropriate type. buf must be advanced past the decoded object.

impl<'de> Deserialize<'de> for KeyAuthorization

fn deserialize<__D>( __deserializer: __D, ) -> Result<KeyAuthorization, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Encodable for KeyAuthorization

fn length(&self) -> usize

Returns the length of the encoding of this type in bytes.

fn encode(&self, out: &mut dyn BufMut)

Encodes the type into the out buffer.

impl Hash for KeyAuthorization

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl InMemorySize for KeyAuthorization

fn size(&self) -> usize

Returns a heuristic for the in-memory size of a struct.

impl PartialEq for KeyAuthorization

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for KeyAuthorization

impl StructuralPartialEq for KeyAuthorization

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 72 bytes