c

com.daml.lf.transaction

BlindingInfo

final case class BlindingInfo(disclosure: Relation[NodeId, Party], divulgence: Relation[ContractId, Party]) extends Product with Serializable

A transaction's blinding information, consisting of disclosure and divulgence info.

"Disclosure" tells us which transaction nodes to communicate to which parties. See https://docs.daml.com/concepts/ledger-model/ledger-privacy.html Note that rollback nodes are a bit special here: Even if the node itself is not disclosed, a party will be disclosed if a node was below a rollback node. That information is not included in blinding info at this point.

"Divulgence" tells us which contracts to communicate to which parties so that their participant nodes can perform post-commit validation. Note that divulgence can also divulge e.g. contract IDs that were created _outside_ this transaction. See also https://docs.daml.com/concepts/ledger-model/ledger-privacy.html#divulgence-when-non-stakeholders-see-contracts

disclosure

Disclosure, specified in terms of local transaction node IDs Each node in the transaction will be mapped to a non-empty set of witnesses for ledger API transactions. Scenarios unfortunately break this invariant and we can have rollback nodes at the top with an empty set of witnesses. We still include those in the map here.

divulgence

Divulgence, specified in terms of contract IDs. Note that if this info was produced by blinding a transaction containing only contract ids, this map may also contain contracts produced in the same transaction. We only include contracts that are divulged to a non-empty set of parties since there is no difference between not divulging a contract and divulging it to no one.

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Instance Constructors

  1. new BlindingInfo(disclosure: Relation[NodeId, Party], divulgence: Relation[ContractId, Party])

    disclosure

    Disclosure, specified in terms of local transaction node IDs Each node in the transaction will be mapped to a non-empty set of witnesses for ledger API transactions. Scenarios unfortunately break this invariant and we can have rollback nodes at the top with an empty set of witnesses. We still include those in the map here.

    divulgence

    Divulgence, specified in terms of contract IDs. Note that if this info was produced by blinding a transaction containing only contract ids, this map may also contain contracts produced in the same transaction. We only include contracts that are divulged to a non-empty set of parties since there is no difference between not divulging a contract and divulging it to no one.

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  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  6. val disclosure: Relation[NodeId, Party]
  7. val divulgence: Relation[ContractId, Party]
  8. final def eq(arg0: AnyRef): Boolean
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