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OvkPolicy

zcash_client_backend::wallet

Enum OvkPolicy 

Source 
pub enum OvkPolicy {
    Sender,
    Custom {
        external_ovk: OutgoingViewingKey,
        internal_ovk: Option<OutgoingViewingKey>,
    },
    Discard,
}
Expand description

Describes a policy for which outgoing viewing key should be able to decrypt transaction outputs.

For details on what transaction information is visible to the holder of an outgoing viewing key, refer to ZIP 310.

Variants§

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Sender

Use an outgoing viewing key produced from the sender’s UnifiedFullViewingKey, selected via the policy documented in UnifiedFullViewingKey::select_ovk.

External transaction outputs will be decryptable by the sender, in addition to the recipients. Wallet-internal transaction outputs will be decryptable only with the wallet’s internal-scoped incoming viewing key.

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Custom

Use custom outgoing viewing keys. These might for instance be derived from a different seed than the wallet’s spending keys.

Transaction outputs will be decryptable by the recipients, and whoever controls the provided outgoing viewing keys.

Fields

§external_ovk: OutgoingViewingKey
§internal_ovk: Option<OutgoingViewingKey>
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Discard

Use no outgoing viewing keys. Transaction outputs will be decryptable by their recipients, but not by the sender.

Implementations§

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impl OvkPolicy

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pub fn custom_from_common_bytes(key: &[u8; 32]) -> Self

Constructs an OvkPolicy::Custom value from a single arbitrary 32-byte key with both the external_ovk and internal_ovk components set to the same key.

Outputs of transactions created with this OVK policy will be recoverable using this key irrespective of whether they are external outputs or wallet-internal change outputs.

Trait Implementations§

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impl Clone for OvkPolicy

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for OvkPolicy

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

Formats the value using the given formatter. Read more

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