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Juvix imports 

module arch.node.engines.signs_for_messages;

import prelude open;
import arch.node.types.identities open;

SignsFor Messages

Message interface

type SignsForMsg :=
  | SignsForRequest RequestSignsFor
  | SignsForReply ReplySignsFor
  | SubmitSignsForEvidenceRequest RequestSubmitSignsForEvidence
  | SubmitSignsForEvidenceReply ReplySubmitSignsForEvidence
  | QuerySignsForEvidenceRequest RequestQuerySignsForEvidence
  | QuerySignsForEvidenceReply ReplyQuerySignsForEvidence;

Message sequence diagrams

Submitting signs_for evidence

sequenceDiagram
    participant Client
    participant SignsForEngine

    Client->>SignsForEngine: RequestSubmitSignsForEvidence
    Note over SignsForEngine: Process and store evidence
    SignsForEngine->>Client: ReplySubmitSignsForEvidence
Submitting evidence of a signs_for relationship

Querying signs_for relationship

sequenceDiagram
    participant Client
    participant SignsForEngine

    Client->>SignsForEngine: RequestSignsFor (X signs for Y?)
    Note over SignsForEngine: Check stored evidence
    SignsForEngine->>Client: ReplySignsFor
Querying whether a specific signs_for relationship exists

Retrieving signs_for evidence

sequenceDiagram
    participant Client
    participant SignsForEngine

    Client->>SignsForEngine: RequestQuerySignsForEvidence (for X)
    Note over SignsForEngine: Retrieve relevant evidence
    SignsForEngine->>Client: ReplyQuerySignsForEvidence
Retrieving all signs_for evidence related to a particular identity

Message types

RequestSignsFor

type RequestSignsFor :=
  mkRequestSignsFor@{
    externalIdentityA : ExternalIdentity;
    externalIdentityB : ExternalIdentity;
  };

A RequestSignsFor queries whether externalIdentityA can sign on behalf of externalIdentityB.

Arguments
externalIdentityA:
The identity attempting to sign.
externalIdentityB:
The identity on whose behalf the signature is made.

MsgSignsForReply ReplySignsFor

type ReplySignsFor :=
  mkReplySignsFor@{
    signsFor : Bool;
    err : Option String;
  };

A ReplySignsFor indicates whether the signs_for relationship exists.

Arguments
signsFor:
True if externalIdentityA can sign for externalIdentityB, False otherwise.
err:
An error message if the query failed.

RequestSubmitSignsForEvidence

type RequestSubmitSignsForEvidence :=
  mkRequestSubmitSignsForEvidence@{
    evidence : SignsForEvidence;
  };

A RequestSubmitSignsForEvidence submits evidence of a signs_for relationship.

Arguments
evidence:
The evidence supporting the signs_for relationship.

ReplySubmitSignsForEvidence

type ReplySubmitSignsForEvidence :=
  mkReplySubmitSignsForEvidence@{
    err : Option String;
  };

A ReplySubmitSignsForEvidence acknowledges the submission of evidence.

Arguments
err:
An error message if the submission failed.

RequestQuerySignsForEvidence

type RequestQuerySignsForEvidence :=
  mkRequestQuerySignsForEvidence@{
    externalIdentity : ExternalIdentity;
  };

A RequestQuerySignsForEvidence queries all signs_for evidence related to an identity.

Arguments
externalIdentity:
The identity for which to retrieve evidence.

ReplyQuerySignsForEvidence

type ReplyQuerySignsForEvidence :=
  mkReplyQuerySignsForEvidence@{
    externalIdentity : ExternalIdentity;
    evidence : Set SignsForEvidence;
    err : Option String;
  };

A ReplyQuerySignsForEvidence provides the requested evidence.

Arguments
externalIdentity:
The identity for which to retrieve evidence.
evidence:
A set of SignsForEvidence related to the identity.
err:
An error message if the query failed.

SignsForMsg

type SignsForMsg :=
  | SignsForRequest RequestSignsFor
  | SignsForReply ReplySignsFor
  | SubmitSignsForEvidenceRequest RequestSubmitSignsForEvidence
  | SubmitSignsForEvidenceReply ReplySubmitSignsForEvidence
  | QuerySignsForEvidenceRequest RequestQuerySignsForEvidence
  | QuerySignsForEvidenceReply ReplyQuerySignsForEvidence;

Engine components