public async Task ApplyClaimDefinitionAsync(string userId, Guid claimDefinitionId)
{
var claimDefinition = await _dbContext.ClaimDefinitions.Include(p => p.CredentialSchema).FirstOrDefaultAsync(p => p.Id == claimDefinitionId);
var issuerWalletData = await GetDefaultWalletDataAsync(claimDefinition.UserId);
var issuerWallet = await Wallet.OpenWalletAsync(issuerWalletData.Name, null, null);
var userWalletData = await GetDefaultWalletDataAsync(userId);
var userWallet = await Wallet.OpenWalletAsync(userWalletData.Name, null, null);
var schemaCreatorWalletData = await GetDefaultWalletDataAsync(claimDefinition.CredentialSchema.UserId);
try
{
using (var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync())
{
var userIssuerDidResult = await Did.CreateAndStoreMyDidAsync(userWallet, "{}");
var schema = await GetSchemaAsync(pool, issuerWalletData.Did, schemaCreatorWalletData.Did, claimDefinition.CredentialSchema.Name, claimDefinition.CredentialSchema.Version);
var transcriptClaimOfferJson = await AnonCreds.IssuerCreateClaimOfferAsync(issuerWallet, schema.GetValue("result").ToString(), issuerWalletData.Did, userIssuerDidResult.Did);
await AnonCreds.ProverStoreClaimOfferAsync(userWallet, transcriptClaimOfferJson);
var userMasterSecretName = RandomUtils.RandomString(8);
await AnonCreds.ProverCreateMasterSecretAsync(userWallet, userMasterSecretName);
var getClaimDefRequest = await Ledger.BuildGetClaimDefTxnAsync(userIssuerDidResult.Did, schema.GetValue("result").Value <int>("seqNo"), "CL", issuerWalletData.Did);
var getClaimDefResponse = await Ledger.SubmitRequestAsync(pool, getClaimDefRequest);
var transcriptClaimDef = JObject.Parse(getClaimDefResponse).GetValue("result");
var transcriptClaimRequestJson = await AnonCreds.ProverCreateAndStoreClaimReqAsync(userWallet, userIssuerDidResult.Did, transcriptClaimOfferJson, transcriptClaimDef.ToString(), userMasterSecretName);
var userIndyClaim = new UserIndyClaim
{
ClaimDefinitionId = claimDefinitionId,
ClaimRequest = transcriptClaimRequestJson,
Id = Guid.NewGuid(),
LastUpdated = DateTime.UtcNow,
Status = UserIndyClaimStatus.Requested,
TimeCreated = DateTime.UtcNow,
UserId = userId
};
_dbContext.UserIndyClaims.Add(userIndyClaim);
await _dbContext.SaveChangesAsync();
}
}
finally
{
await userWallet.CloseAsync();
await issuerWallet.CloseAsync();
}
}
public async Task TestRefreshPoolWorks()
{
var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync();
Assert.IsNotNull(pool);
_openedPools.Add(pool);
await pool.RefreshAsync();
}
public async Task TestRefreshPoolWorks()
{
Pool.SetProtocolVersionAsync(PoolUtils.PROTOCOL_VERSION).Wait();
var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync();
Assert.IsNotNull(pool);
openedPools.Add(pool);
await pool.RefreshAsync();
}
public async Task <ClaimDefinition> CreateClaimDefinitionAsync(string userId, Guid credentialSchemaId)
{
var schema = await _dbContext.CredentialSchemas.Include(p => p.User).FirstOrDefaultAsync(p => p.Id == credentialSchemaId);
var schemaCreatorWalletData = await GetDefaultWalletDataAsync(schema.UserId);
var walletData = await GetDefaultWalletDataAsync(userId);
var wallet = await Wallet.OpenWalletAsync(walletData.Name, null, null);
try
{
using (var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync())
{
var schemaData = JsonConvert.SerializeObject(new
{
name = schema.Name,
version = schema.Version
});
var getSchemaRequest = await Ledger.BuildGetSchemaRequestAsync(walletData.Did, schemaCreatorWalletData.Did, schemaData);
var getSchemaResponse = await Ledger.SubmitRequestAsync(pool, getSchemaRequest);
var schemaValue = JObject.Parse(getSchemaResponse).GetValue("result");
var claimDefJson = await AnonCreds.IssuerCreateAndStoreClaimDefAsync(wallet, walletData.Did, schemaValue.ToString(), "CL", false);
var claimDef = JObject.Parse(claimDefJson);
var claimDefRequest = await Ledger.BuildClaimDefTxnAsync(walletData.Did, claimDef.Value <int>("ref"), claimDef.Value <string>("signature_type"), claimDef.GetValue("data").ToString());
var result = await Ledger.SignAndSubmitRequestAsync(pool, wallet, walletData.Did, claimDefRequest);
var claimDefinition = new ClaimDefinition
{
Id = Guid.NewGuid(),
CredentialSchemaId = credentialSchemaId,
UserId = userId
};
_dbContext.ClaimDefinitions.Add(claimDefinition);
await _dbContext.SaveChangesAsync();
return(claimDefinition);
}
}
catch (Exception ex)
{
throw;
}
finally
{
await wallet.CloseAsync();
}
}
public async Task TestClosePoolWorks()
{
var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync();
Assert.IsNotNull(pool);
openedPools.Add(pool);
await pool.CloseAsync();
openedPools.Remove(pool);
}
public async Task TestClosePoolWorksForTwice()
{
var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync();
Assert.IsNotNull(pool);
openedPools.Add(pool);
await pool.CloseAsync();
openedPools.Remove(pool);
var ex = await Assert.ThrowsExceptionAsync <InvalidPoolException>(() =>
pool.CloseAsync()
);
}
public async Task TestClosePoolWorksForTwice()
{
var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync();
Assert.IsNotNull(pool);
_openedPools.Add(pool);
await pool.CloseAsync();
_openedPools.Remove(pool);
var ex = await Assert.ThrowsExceptionAsync <IndyException>(() =>
pool.CloseAsync()
);
Assert.AreEqual(ErrorCode.PoolLedgerInvalidPoolHandle, ex.ErrorCode);
}
public async Task CreateCredentialSchemaAsync(string userId, string name, string version, string[] attributes)
{
var walletData = await GetDefaultWalletDataAsync(userId);
var schema = new { name, version, attr_names = attributes };
var wallet = await Wallet.OpenWalletAsync(walletData.Name, null, null);
try
{
using (var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync())
{
var schemaRequest = await Ledger.BuildSchemaRequestAsync(walletData.Did, JsonConvert.SerializeObject(schema));
var result = await Ledger.SignAndSubmitRequestAsync(pool, wallet, walletData.Did, schemaRequest);
Console.WriteLine("=============Schema Request Result===========");
Console.WriteLine(result);
var schemaData = new CredentialSchema
{
Id = Guid.NewGuid(),
AttributeArray = attributes,
Name = name,
Version = version,
UserId = userId
};
_dbContext.CredentialSchemas.Add(schemaData);
await _dbContext.SaveChangesAsync();
}
}
catch (Exception)
{
throw;
}
finally
{
await wallet.CloseAsync();
}
}
public async Task CreateTrustAnchorWalletAsync(ApplicationUser user)
{
// Get steward wallet
var stewardWalletData = await GetStewardWalletDataAsync();
var stewardWallet = await Wallet.OpenWalletAsync(stewardWalletData.Name, null, null);
Wallet trustAnchorWallet = null;
try
{
// steward create new DID
var stewardTrustAnchorDidResult = await Did.CreateAndStoreMyDidAsync(stewardWallet, "{}");
using (var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync())
{
// steward send NYM transaction
var nymRequest = await Ledger.BuildNymRequestAsync(stewardWalletData.Did, stewardTrustAnchorDidResult.Did, stewardTrustAnchorDidResult.VerKey, null, "TRUST_ANCHOR");
await Ledger.SignAndSubmitRequestAsync(pool, stewardWallet, stewardWalletData.Did, nymRequest);
// steward creates the connection request
var nonce = RandomUtils.RandomNumber(8);
var connectionRequest = new { did = stewardTrustAnchorDidResult.Did, nonce };
// trust anchor create wallet
var trustAnchorWalletName = Guid.NewGuid().ToString();
await Wallet.CreateWalletAsync(_configuration.GetValue("Indy.PoolName", "indy_pool"), trustAnchorWalletName, null, null, null);
trustAnchorWallet = await Wallet.OpenWalletAsync(trustAnchorWalletName, null, null);
var trustAnchorStewardWalletDidResult = await Did.CreateAndStoreMyDidAsync(trustAnchorWallet, "{}");
// trust anchor create connection response
var connectionResponse = new { did = trustAnchorStewardWalletDidResult.Did, verKey = trustAnchorStewardWalletDidResult.VerKey, connectionRequest.nonce };
// trust anchor asks the ledger for the verkey of the Steward's DID
var stewardTrustAnchorVerKey = await Did.KeyForDidAsync(pool, trustAnchorWallet, connectionRequest.did);
// trust anchor encrypts the connection response
var anoncryptedConnectionResponse = await Crypto.AnonCryptAsync(stewardTrustAnchorVerKey, Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(connectionResponse)));
// steward decrypts the connection response
var decryptedConnectionResponse = await Crypto.AnonDecryptAsync(stewardWallet, stewardTrustAnchorDidResult.VerKey, anoncryptedConnectionResponse);
var decryptedConnectionResponseObj = JObject.Parse(Encoding.UTF8.GetString(decryptedConnectionResponse));
if (decryptedConnectionResponseObj.Value <int>("nonce") != nonce)
{
throw new Exception("Decrypt connection response failed, nonce not match");
}
// steward sends NYM transaction for Trust Anchor's DID to the ledger
nymRequest = await Ledger.BuildNymRequestAsync(stewardWalletData.Did, decryptedConnectionResponseObj.Value <string>("did"), decryptedConnectionResponseObj.Value <string>("verKey"), null, "TRUST_ANCHOR");
await Ledger.SignAndSubmitRequestAsync(pool, stewardWallet, stewardWalletData.Did, nymRequest);
// Getting verinym
// trust anchor creates new DID
var trustAnchorDidResult = await Did.CreateAndStoreMyDidAsync(trustAnchorWallet, "{}");
var authcryptedTrustAnchorDidInfoJson = await Crypto.AuthCryptAsync(trustAnchorWallet, trustAnchorStewardWalletDidResult.VerKey, stewardTrustAnchorVerKey, Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new
{
did = trustAnchorDidResult.Did,
verkey = trustAnchorDidResult.VerKey
})));
// steward decrypts the received message
var authDecryptResult = await Crypto.AuthDecryptAsync(stewardWallet, stewardTrustAnchorVerKey, authcryptedTrustAnchorDidInfoJson);
var authDecryptedDidInfo = JObject.Parse(Encoding.UTF8.GetString(authDecryptResult.MessageData));
// steward asks the ledger for the verkey of trust anchor's DID
var trustAnchorVerKey = await Did.KeyForDidAsync(pool, stewardWallet, authDecryptedDidInfo.Value <string>("did"));
if (trustAnchorVerKey != authDecryptResult.TheirVk)
{
throw new Exception("Decrypt auth failed, VerKey not match");
}
// steward send NYM transaction for Trust Anchor's DID
nymRequest = await Ledger.BuildNymRequestAsync(stewardWalletData.Did, authDecryptedDidInfo.Value <string>("did"), authDecryptedDidInfo.Value <string>("verkey"), null, "TRUST_ANCHOR");
await Ledger.SignAndSubmitRequestAsync(pool, stewardWallet, stewardWalletData.Did, nymRequest);
await SaveWalletData(trustAnchorWalletName, user.Id, trustAnchorDidResult.Did, trustAnchorDidResult.VerKey, true);
await pool.CloseAsync();
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
await stewardWallet.CloseAsync();
await trustAnchorWallet.CloseAsync();
}
}
public async Task CreateWalletForBusinessAsync(ApplicationUser user)
{
// Get steward wallet
var stewardWalletData = await GetStewardWalletDataAsync();
var stewardWallet = await Wallet.OpenWalletAsync(stewardWalletData.Name, null, null);
Wallet trustAnchorWallet = null;
try
{
// steward create new DID
var stewardTrustAnchorDidResult = await Did.CreateAndStoreMyDidAsync(stewardWallet, "{}");
using (var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync())
{
// steward send NYM transaction
var nymRequest = await Ledger.BuildNymRequestAsync(stewardWalletData.Did, stewardTrustAnchorDidResult.Did, stewardTrustAnchorDidResult.VerKey, null, "TRUST_ANCHOR");
var a = await Ledger.SignAndSubmitRequestAsync(pool, stewardWallet, stewardWalletData.Did, nymRequest);
Console.WriteLine($"NYM 1: {a}");
// trust anchor create wallet
var trustAnchorWalletName = Guid.NewGuid().ToString();
await Wallet.CreateWalletAsync(_configuration.GetValue("Indy.PoolName", "indy_pool"), trustAnchorWalletName, null, null, null);
trustAnchorWallet = await Wallet.OpenWalletAsync(trustAnchorWalletName, null, null);
var trustAnchorStewardWalletDidResult = await Did.CreateAndStoreMyDidAsync(trustAnchorWallet, "{}");
// steward sends NYM transaction for Trust Anchor's DID to the ledger
nymRequest = await Ledger.BuildNymRequestAsync(stewardWalletData.Did, trustAnchorStewardWalletDidResult.Did, trustAnchorStewardWalletDidResult.VerKey, null, "TRUST_ANCHOR");
var b = await Ledger.SignAndSubmitRequestAsync(pool, stewardWallet, stewardWalletData.Did, nymRequest);
Console.WriteLine($"NYM 2: {b}");
// Getting verinym
// trust anchor creates new DID
var trustAnchorDidResult = await Did.CreateAndStoreMyDidAsync(trustAnchorWallet, "{}");
// steward send NYM transaction for Trust Anchor's DID
nymRequest = await Ledger.BuildNymRequestAsync(stewardWalletData.Did, trustAnchorDidResult.Did, trustAnchorDidResult.VerKey, null, "TRUST_ANCHOR");
var c = await Ledger.SignAndSubmitRequestAsync(pool, stewardWallet, stewardWalletData.Did, nymRequest);
Console.WriteLine($"NYM 3: {c}");
await SaveWalletData(trustAnchorWalletName, user.Id, trustAnchorDidResult.Did, trustAnchorDidResult.VerKey, true);
await pool.CloseAsync();
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
await stewardWallet.CloseAsync();
await trustAnchorWallet.CloseAsync();
}
}
public async Task CreateWalletAsync(ApplicationUser user, bool isTrustAnchor, string stewardId = null, string seed = null)
{
WalletData stewardWalletData = null;
Wallet stewardWallet = null;
if (!string.IsNullOrEmpty(stewardId))
{
stewardWalletData = await _dbContext.WalletDatas.FirstOrDefaultAsync(p => p.UserId == stewardId);
if (stewardWalletData == null)
{
throw new Exception("Agent Wallet not found.");
}
stewardWallet = await Wallet.OpenWalletAsync(stewardWalletData.Name, null, null);
}
var walletName = $"{user.Id}";
Wallet wallet = null;
try
{
await Wallet.CreateWalletAsync(_configuration.GetValue("Indy.PoolName", "indy_pool"), walletName, null, null, null);
wallet = await Wallet.OpenWalletAsync(walletName, null, null);
var didJson = "{}";
if (!string.IsNullOrEmpty(seed))
{
didJson = DidJson.GetJson(seed);
}
var didResult = await Did.CreateAndStoreMyDidAsync(wallet, didJson);
var walletData = new WalletData
{
UserId = user.Id,
TimeCreated = DateTime.UtcNow,
Did = didResult.Did,
Name = walletName,
VerKey = didResult.VerKey
};
_dbContext.WalletDatas.Add(walletData);
if (stewardWalletData != null)
{
if (isTrustAnchor)
{
var stewardAgentDidResult = await Did.CreateAndStoreMyDidAsync(stewardWallet, "{}");
var nymRequest = await Ledger.BuildNymRequestAsync(stewardWalletData.Did, stewardAgentDidResult.Did, stewardAgentDidResult.VerKey, null, "TRUST_ANCHOR");
using (var pool = await PoolUtils.CreateAndOpenPoolLedgerAsync())
{
var res = await Ledger.SignAndSubmitRequestAsync(pool, stewardWallet, stewardWalletData.Did, nymRequest);
var stewardAgentVerKey = await Did.KeyForDidAsync(pool, wallet, stewardAgentDidResult.Did);
var connectionResponse = JsonConvert.SerializeObject(new { did = stewardAgentDidResult.Did, verkey = stewardAgentVerKey, nonce = 21314123141 });
var anoncryptedConnectionResponse = await Crypto.AnonCryptAsync(stewardAgentVerKey, Encoding.UTF8.GetBytes(connectionResponse));
var decryptedConnectionResponse = Encoding.UTF8.GetString(await Crypto.AnonDecryptAsync(stewardWallet, stewardAgentDidResult.VerKey, anoncryptedConnectionResponse));
var connectionResponseObj = JObject.Parse(decryptedConnectionResponse);
nymRequest = await Ledger.BuildNymRequestAsync(stewardWalletData.Did, connectionResponseObj.Value <string>("did"), connectionResponseObj.Value <string>("verkey"), null, "TRUST_ANCHOR");
var signAndSubmitRequestResult = await Ledger.SignAndSubmitRequestAsync(pool, stewardWallet, stewardWalletData.Did, nymRequest);
// getting verinym
}
}
}
await _dbContext.SaveChangesAsync();
}
catch (Exception)
{
throw;
}
finally
{
await CloseWalletAsync(wallet);
await CloseWalletAsync(stewardWallet);
}
}