public static async Task <(ProofRecord holderProofRecord, ProofRecord requestorProofRecord)> ProposerInitiatedProofProtocolAsync(
IProofService proofService,
IProducerConsumerCollection <AgentMessage> messages,
ConnectionRecord holderConnection, ConnectionRecord requestorConnection,
IAgentContext holderContext, IAgentContext requestorContext,
ProofProposal proofProposalObject)
{
// Holder sends a proof proposal
var(holderProposalMessage, holderProofProposalRecord) = await proofService.CreateProposalAsync(holderContext, proofProposalObject, holderConnection.Id);
messages.TryAdd(holderProposalMessage);
Assert.True(holderProofProposalRecord.State == ProofState.Proposed);
// Requestor accepts the proposal and builds a proofRequest
var requestorProposalMessage = FindContentMessage <ProposePresentationMessage>(messages);
Assert.NotNull(requestorProposalMessage);
//Requestor stores the proof proposal
var requestorProofProposalRecord = await proofService.ProcessProposalAsync(requestorContext, requestorProposalMessage, requestorConnection);
Assert.Equal(ProofState.Proposed, requestorProofProposalRecord.State);
var proposal = requestorProofProposalRecord.ProposalJson.ToObject <ProofProposal>();
Assert.Equal("Hello, World", proposal.Comment);
Assert.NotNull(proposal.ProposedAttributes);
Console.WriteLine(requestorProofProposalRecord.ProposalJson);
// Requestor sends a proof request
var(requestorRequestMessage, requestorProofRequestRecord) = await proofService.CreateRequestFromProposalAsync(
requestorContext,
new ProofRequestParameters
{
Name = "Test",
Version = "1.0"
},
requestorProofProposalRecord.Id, requestorConnection.Id);
messages.TryAdd(requestorRequestMessage);
Assert.Equal(ProofState.Requested, requestorProofRequestRecord.State);
return(await ProofProtocolAsync(proofService, messages, holderConnection, requestorConnection, holderContext, requestorContext, requestorProofRequestRecord));
}
public async Task CreateProofRequestFromProposal()
{
var events = 0;
_eventAggregator.GetEventByType <ServiceMessageProcessingEvent>()
.Where(_ => (_.MessageType == MessageTypes.PresentProofNames.ProposePresentation ||
_.MessageType == MessageTypes.PresentProofNames.RequestPresentation ||
_.MessageType == MessageTypes.IssueCredentialNames.RequestCredential ||
_.MessageType == MessageTypes.IssueCredentialNames.IssueCredential))
.Subscribe(_ =>
{
events++;
});
// Setup secure connection between issuer and holder
var(issuerConnection, holderConnection) = await Scenarios.EstablishConnectionAsync(
_connectionService, _messages, _issuerWallet, _holderWallet);
var(issuerCredential, holderCredential) = await Scenarios.IssueCredentialAsync(
_schemaService, _credentialService, _messages, issuerConnection,
holderConnection, _issuerWallet, _holderWallet, await _holderWallet.Pool, TestConstants.DefaultMasterSecret, false, new List <CredentialPreviewAttribute>
{
new CredentialPreviewAttribute("first_name", "Test"),
new CredentialPreviewAttribute("last_name", "Test"),
new CredentialPreviewAttribute("salary", "100000"),
new CredentialPreviewAttribute("age", "25"),
new CredentialPreviewAttribute("wellbeing", "100")
});
Assert.Equal(issuerCredential.State, holderCredential.State);
Assert.Equal(CredentialState.Issued, issuerCredential.State);
var(message, record) = await _proofService.CreateProposalAsync(_holderWallet, new ProofProposal
{
Comment = "Hello, World",
ProposedAttributes = new List <ProposedAttribute>
{
new ProposedAttribute
{
Name = "first_name",
CredentialDefinitionId = holderCredential.CredentialDefinitionId,
Referent = "Proof of Name",
Value = "Joe"
},
new ProposedAttribute
{
Name = "last_name",
CredentialDefinitionId = holderCredential.CredentialDefinitionId,
Referent = "Proof of Name",
Value = "Shmoe"
},
new ProposedAttribute
{
Name = "age",
CredentialDefinitionId = holderCredential.CredentialDefinitionId,
Referent = "Proof of Age",
Value = "Shmoe"
}
},
ProposedPredicates = new List <ProposedPredicate>
{
new ProposedPredicate
{
Name = "salary",
CredentialDefinitionId = holderCredential.CredentialDefinitionId,
Predicate = ">",
Threshold = 99999,
Referent = "Proof of Salary > $99,999"
},
new ProposedPredicate
{
Name = "wellbeing",
CredentialDefinitionId = holderCredential.CredentialDefinitionId,
Referent = "Proof of Wellbeing",
Predicate = "<",
Threshold = 99999
}
}
}, holderConnection.Id);
Assert.NotNull(message);
// Process Proposal
record = await _proofService.ProcessProposalAsync(_issuerWallet, message, issuerConnection);
//
RequestPresentationMessage requestMessage;
(requestMessage, record) = await _proofService.CreateRequestFromProposalAsync(_issuerWallet, new ProofRequestParameters
{
Name = "Test",
Version = "1.0",
NonRevoked = null
}, record.Id, issuerConnection.Id);
Assert.NotNull(requestMessage);
Assert.NotNull(record);
var actualProofRequest = record.RequestJson.ToObject <ProofRequest>();
var expectedProofRequest = new ProofRequest
{
Name = "Test",
Version = "1.0",
Nonce = actualProofRequest.Nonce,
RequestedAttributes = new Dictionary <string, ProofAttributeInfo>
{
{
"Proof of Name", new ProofAttributeInfo
{
Name = null,
Names = new string[] { "first_name", "last_name" },
NonRevoked = null,
Restrictions = new List <AttributeFilter>
{
new AttributeFilter
{
CredentialDefinitionId = holderCredential.CredentialDefinitionId
}
}
}
},
{
"Proof of Age", new ProofAttributeInfo
{
Name = "age",
Names = null,
NonRevoked = null,
Restrictions = new List <AttributeFilter>
{
new AttributeFilter
{
CredentialDefinitionId = holderCredential.CredentialDefinitionId
}
}
}
}
},
RequestedPredicates = new Dictionary <string, ProofPredicateInfo>
{
{
"Proof of Salary > $99,999", new ProofPredicateInfo
{
Name = "salary",
Names = null,
NonRevoked = null,
PredicateType = ">",
PredicateValue = 99999,
Restrictions = new List <AttributeFilter>
{
new AttributeFilter
{
CredentialDefinitionId = holderCredential.CredentialDefinitionId
}
}
}
},
{
"Proof of Wellbeing", new ProofPredicateInfo
{
Name = "wellbeing",
Names = null,
NonRevoked = null,
PredicateType = "<",
PredicateValue = 99999,
Restrictions = new List <AttributeFilter>
{
new AttributeFilter
{
CredentialDefinitionId = holderCredential.CredentialDefinitionId
}
}
}
}
}
};
var expectedProofRecord = new ProofRecord
{
State = ProofState.Requested,
RequestJson = expectedProofRequest.ToJson(),
};
actualProofRequest.Should().BeEquivalentTo(expectedProofRequest);
}