public static async Task Execute()
{
Console.WriteLine("Wallet sample -> started");
var firstWalletConfig = "{\"id\":\"my_wallet\"}";
var secondWalletConfig = "{\"id\":\"their_wallet\"}";
var firstWalletCredentials = "{\"key\":\"my_wallet_key\"}";
var secondWalletCredentials = "{\"key\":\"their_wallet_key\"}";
try
{
// Create and Open First Wallet
await WalletUtils.CreateWalletAsync(firstWalletConfig, firstWalletCredentials);
using (var firstWallet = await Wallet.OpenWalletAsync(firstWalletConfig, firstWalletCredentials))
{
// Create a DID that we will retrieve and compare from imported wallet
var myDid = await Did.CreateAndStoreMyDidAsync(firstWallet, "{}");
var path = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var exportConfig = JsonConvert.SerializeObject(new
{
path = path,
key = Guid.NewGuid().ToString()
});
await firstWallet.ExportAsync(exportConfig);
// Import the exported wallet into a new wallet
await Wallet.ImportAsync(secondWalletConfig, secondWalletCredentials, exportConfig);
// Open the second wallet
using (var secondWallet = await Wallet.OpenWalletAsync(secondWalletConfig, secondWalletCredentials))
{
// Retrieve stored key
var myKey = await Did.KeyForLocalDidAsync(secondWallet, myDid.Did);
// Compare the two keys
Debug.Assert(myKey == myDid.VerKey);
await secondWallet.CloseAsync();
}
// Close wallets
await firstWallet.CloseAsync();
File.Delete(path);
}
}
finally
{
// 11. Delete wallets and Pool ledger config
await WalletUtils.DeleteWalletAsync(firstWalletConfig, firstWalletCredentials);
await WalletUtils.DeleteWalletAsync(secondWalletConfig, secondWalletCredentials);
}
Console.WriteLine("Wallet sample -> completed");
}
public static async Task Execute()
{
Console.Write("Executing non-secrets sample... ");
var myWalletConfig = "{\"id\":\"my_wallet\"}";
var myWalletCredentials = "{\"key\":\"my_wallet_key\"}";
try
{
// Create and Open First Wallet
await WalletUtils.CreateWalletAsync(myWalletConfig, myWalletCredentials);
using (var myWallet = await Wallet.OpenWalletAsync(myWalletConfig, myWalletCredentials))
{
var id = "myRecordId";
var value = "myRecordValue";
var type = "record_type";
var tagsJson = JsonConvert.SerializeObject(new { tagName = "tagValue", tagName2 = "tagValue2" });
var queryJson = JsonConvert.SerializeObject(new { tagName = "tagValue" });
// Add a new record to the wallet
await NonSecrets.AddRecordAsync(myWallet, type, id, value, tagsJson);
// Retrieve the record by type and id
var recordJson = await NonSecrets.GetRecordAsync(myWallet, type, id, "{}");
var record = JObject.Parse(recordJson);
Debug.Assert(record["id"].ToObject <string>() == id);
Debug.Assert(record["value"].ToObject <string>() == value);
// Open wallet search inside using statement to properly dispose and close the search handle
using (var walletSearch = await NonSecrets.OpenSearchAsync(myWallet, type, queryJson, "{}"))
{
// Invoke fetch next records
var searchJson = await walletSearch.NextAsync(myWallet, 5);
var search = JObject.Parse(searchJson);
// There should be one record returned
Debug.Assert(search["records"].ToObject <JObject[]>().Length == 1);
}
// Close wallets
await myWallet.CloseAsync();
}
Console.WriteLine("OK", Color.Green);
}
catch (Exception e)
{
Console.WriteLine($"Error: {e.Message}", Color.Red);
}
finally
{
// Delete wallets
await WalletUtils.DeleteWalletAsync(myWalletConfig, myWalletCredentials);
}
}
public async Task Initialize()
{
// 1. Create ledger config from genesis txn file
await PoolUtils.CreatePoolLedgerConfig();
// 2. Create and Open My Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, myWalletName, "default", null, null);
//3. Open pool and wallets in using statements to ensure they are closed when finished.
pool = await Pool.OpenPoolLedgerAsync(PoolUtils.DEFAULT_POOL_NAME, "{}");
wallet = await Wallet.OpenWalletAsync(myWalletName, null, null);
Console.WriteLine($"Wallet and pool opened: {pool} {wallet}");
}
public static async Task Execute()
{
Console.WriteLine("Anoncreds Revocation sample -> started");
var issuerWalletName = "issuerWallet";
var proverWalletName = "proverWallet";
var issuerWalletCredentials = "{\"key\":\"issuer_wallet_key\"}";
var proverWalletCredentials = "{\"key\":\"prover_wallet_key\"}";
var issuerDid = "NcYxiDXkpYi6ov5FcYDi1e";
var proverDid = "VsKV7grR1BUE29mG2Fm2kX";
try
{
//1. Create and Open Pool
await PoolUtils.CreatePoolLedgerConfig();
//2. Issuer Create and Open Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, issuerWalletName, "default", null, issuerWalletCredentials);
//3. Prover Create and Open Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, proverWalletName, "default", null, proverWalletCredentials);
// Open pool and wallets in using statements to ensure they are closed when finished.
using (var pool = await Pool.OpenPoolLedgerAsync(PoolUtils.DEFAULT_POOL_NAME, "{}"))
using (var issuerWallet = await Wallet.OpenWalletAsync(issuerWalletName, null, issuerWalletCredentials))
using (var proverWallet = await Wallet.OpenWalletAsync(proverWalletName, null, proverWalletCredentials))
{
//4. Issuer Creates Credential Schema
var schemaName = "gvt";
var schemaVersion = "1.0";
var schemaAttributes = "[\"name\", \"age\", \"sex\", \"height\"]";
var createSchemaResult = await AnonCreds.IssuerCreateSchemaAsync(issuerDid, schemaName, schemaVersion, schemaAttributes);
var schemaId = createSchemaResult.SchemaId;
var schemaJson = createSchemaResult.SchemaJson;
//5. Issuer create Credential Definition
var credDefTag = "Tag1";
var credDefConfigJson = "{\"support_revocation\":true}";
var createCredDefResult = await AnonCreds.IssuerCreateAndStoreCredentialDefAsync(issuerWallet, issuerDid, schemaJson, credDefTag, null, credDefConfigJson);
var credDefId = createCredDefResult.CredDefId;
var credDefJson = createCredDefResult.CredDefJson;
//6. Issuer create Revocation Registry
var revRegDefConfig = "{\"issuance_type\":\"ISSUANCE_ON_DEMAND\",\"max_cred_num\":5}";
var tailsWriterConfig = string.Format("{{\"base_dir\":\"{0}\", \"uri_pattern\":\"\"}}", EnvironmentUtils.GetIndyHomePath("tails")).Replace('\\', '/');
var tailsWriter = await BlobStorage.OpenWriterAsync("default", tailsWriterConfig);
var revRegDefTag = "Tag2";
var createRevRegResult = await AnonCreds.IssuerCreateAndStoreRevocRegAsync(issuerWallet, issuerDid, null, revRegDefTag, credDefId, revRegDefConfig, tailsWriter);
var revRegId = createRevRegResult.RevRegId;
var revRegDefJson = createRevRegResult.RevRegDefJson;
//7. Prover create Master Secret
var masterSecretId = await AnonCreds.ProverCreateMasterSecretAsync(proverWallet, null);
//8. Issuer Creates Credential Offer
var credOffer = await AnonCreds.IssuerCreateCredentialOfferAsync(issuerWallet, credDefId);
//9. Prover Creates Credential Request
var createCredReqResult = await AnonCreds.ProverCreateCredentialReqAsync(proverWallet, proverDid, credOffer, credDefJson, masterSecretId);
var credReqJson = createCredReqResult.CredentialRequestJson;
var credReqMetadataJson = createCredReqResult.CredentialRequestMetadataJson;
//10. Issuer open Tails Reader
var blobStorageReaderCfg = await BlobStorage.OpenReaderAsync("default", tailsWriterConfig);
//11. Issuer create Credential
var credValuesJson = "{\n" +
" \"sex\": {\"raw\": \"male\", \"encoded\": \"594465709955896723921094925839488742869205008160769251991705001\"},\n" +
" \"name\": {\"raw\": \"Alex\", \"encoded\": \"1139481716457488690172217916278103335\"},\n" +
" \"height\": {\"raw\": \"175\", \"encoded\": \"175\"},\n" +
" \"age\": {\"raw\": \"28\", \"encoded\": \"28\"}\n" +
" }";
var createCredentialResult = await AnonCreds.IssuerCreateCredentialAsync(issuerWallet, credOffer, credReqJson, credValuesJson, revRegId, blobStorageReaderCfg);
var credential = createCredentialResult.CredentialJson;
var revRegDeltaJson = createCredentialResult.RevocRegDeltaJson;
var credRevId = createCredentialResult.RevocId;
//12. Prover Stores Credential
await AnonCreds.ProverStoreCredentialAsync(proverWallet, null, credReqMetadataJson, credential, credDefJson, revRegDefJson);
//13. Prover Gets Credentials for Proof Request
var proofRequestJson = "{\n" +
" \"nonce\":\"123432421212\",\n" +
" \"name\":\"proof_req_1\",\n" +
" \"version\":\"0.1\", " +
" \"requested_attributes\":{" +
" \"attr1_referent\":{\"name\":\"name\"}" +
" },\n" +
" \"requested_predicates\":{" +
" \"predicate1_referent\":{\"name\":\"age\",\"p_type\":\">=\",\"p_value\":18}" +
" }" +
" }";
var credentialsForProofJson = await AnonCreds.ProverGetCredentialsForProofReqAsync(proverWallet, proofRequestJson);
var credentials = JObject.Parse(credentialsForProofJson);
var credentialsForAttr1 = (JArray)credentials["attrs"]["attr1_referent"];
var credentialsForPredicate1 = (JArray)credentials["predicates"]["predicate1_referent"];
var credIdForAttr1 = credentialsForAttr1[0]["cred_info"]["referent"].ToObject <string>();
var credIdForPred1 = credentialsForPredicate1[0]["cred_info"]["referent"].ToObject <string>();
//14. Prover create RevocationState
long timestamp = 100;
var revStateJson = await AnonCreds.CreateRevocationStateAsync(blobStorageReaderCfg, revRegDefJson, revRegDeltaJson, timestamp, credRevId);
//15. Prover Creates Proof
var requestedCredentialsJson = string.Format("{{" +
"\"self_attested_attributes\":{{}}," +
"\"requested_attributes\":{{\"attr1_referent\":{{\"cred_id\":\"{0}\", \"revealed\":true, \"timestamp\":{1} }}}}," +
"\"requested_predicates\":{{\"predicate1_referent\":{{\"cred_id\":\"{2}\", \"timestamp\":{3}}}}}" +
"}}", credIdForAttr1, timestamp, credIdForPred1, timestamp);
var schemas = string.Format("{{\"{0}\":{1}}}", schemaId, schemaJson);
var credentialDefs = string.Format("{{\"{0}\":{1}}}", credDefId, credDefJson);
var revStates = string.Format("{{\"{0}\": {{ \"{1}\":{2} }}}}", revRegId, timestamp, revStateJson);
var proofJson = await AnonCreds.ProverCreateProofAsync(proverWallet, proofRequestJson, requestedCredentialsJson, masterSecretId, schemas, credentialDefs, revStates);
var proof = JObject.Parse(proofJson);
//16. Verifier verify Proof
var revealedAttr1 = proof["requested_proof"]["revealed_attrs"]["attr1_referent"];
Debug.Assert("Alex" == revealedAttr1["raw"].ToObject <string>());
var revRegDefs = string.Format("{{\"{0}\":{1}}}", revRegId, revRegDefJson);
var revRegs = string.Format("{{\"{0}\": {{ \"{1}\":{2} }}}}", revRegId, timestamp, revRegDeltaJson);
var valid = await AnonCreds.VerifierVerifyProofAsync(proofRequestJson, proofJson, schemas, credentialDefs, revRegDefs, revRegs);
Debug.Assert(valid);
await issuerWallet.CloseAsync();
await proverWallet.CloseAsync();
await pool.CloseAsync();
}
}
finally
{
//17. Delete wallets and Pool ledger config
await WalletUtils.DeleteWalletAsync(issuerWalletName, issuerWalletCredentials);
await WalletUtils.DeleteWalletAsync(proverWalletName, proverWalletCredentials);
await PoolUtils.DeletePoolLedgerConfigAsync(PoolUtils.DEFAULT_POOL_NAME);
}
Console.WriteLine("Anoncreds Revocation sample -> completed");
}
public static async Task Execute()
{
Console.WriteLine("Ledger sample -> started");
var myWalletName = "myWallet";
var theirWalletName = "theirWallet";
var trusteeSeed = "000000000000000000000000Trustee1";
try
{
// 1. Create ledger config from genesis txn file
await PoolUtils.CreatePoolLedgerConfig();
// 2. Create and Open My Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, myWalletName, "default", null, null);
// 3. Create and Open Trustee Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, theirWalletName, "default", null, null);
//4. Open pool and wallets in using statements to ensure they are closed when finished.
using (var pool = await Pool.OpenPoolLedgerAsync(PoolUtils.DEFAULT_POOL_NAME, "{}"))
using (var myWallet = await Wallet.OpenWalletAsync(myWalletName, null, null))
using (var trusteeWallet = await Wallet.OpenWalletAsync(theirWalletName, null, null))
{
//5. Create My Did
var createMyDidResult = await Did.CreateAndStoreMyDidAsync(myWallet, "{}");
var myDid = createMyDidResult.Did;
var myVerkey = createMyDidResult.VerKey;
//6. Create Did from Trustee1 seed
var theirDidJson = string.Format("{{\"seed\":\"{0}\"}}", trusteeSeed);
var createTheirDidResult = await Did.CreateAndStoreMyDidAsync(trusteeWallet, theirDidJson);
var trusteeDid = createTheirDidResult.Did;
//7. Build Nym Request
var nymRequest = await Ledger.BuildNymRequestAsync(trusteeDid, myDid, myVerkey, null, null);
//8. Trustee Sign Nym Request
var nymResponseJson = await Ledger.SignAndSubmitRequestAsync(pool, trusteeWallet, trusteeDid, nymRequest);
var nymResponse = JObject.Parse(nymResponseJson);
Debug.Assert(string.Equals(myDid, nymResponse["result"].Value <string>("dest")));
Debug.Assert(string.Equals(myVerkey, nymResponse["result"].Value <string>("verkey")));
//9. Close wallets and pool
await myWallet.CloseAsync();
await trusteeWallet.CloseAsync();
await pool.CloseAsync();
}
}
finally
{
//10. Delete wallets and Pool ledger config
await WalletUtils.DeleteWalletAsync(myWalletName, null);
await WalletUtils.DeleteWalletAsync(theirWalletName, null);
await PoolUtils.DeletePoolLedgerConfigAsync(PoolUtils.DEFAULT_POOL_NAME);
}
Console.WriteLine("Ledger sample -> completed");
}
public static async Task Execute()
{
Console.WriteLine("Anoncreds sample -> started");
var issuerWalletName = "issuerWallet";
var proverWalletName = "proverWallet";
var issuerWalletCredentials = "{\"key\":\"issuer_wallet_key\"}";
var proverWalletCredentials = "{\"key\":\"prover_wallet_key\"}";
var issuerDid = "NcYxiDXkpYi6ov5FcYDi1e";
var proverDid = "VsKV7grR1BUE29mG2Fm2kX";
try
{
//1. Create and Open Pool
await PoolUtils.CreatePoolLedgerConfig();
//2. Issuer Create and Open Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, issuerWalletName, "default", null, issuerWalletCredentials);
//3. Prover Create and Open Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, proverWalletName, "default", null, proverWalletCredentials);
// Open pool and wallets in using statements to ensure they are closed when finished.
using (var pool = await Pool.OpenPoolLedgerAsync(PoolUtils.DEFAULT_POOL_NAME, "{}"))
using (var issuerWallet = await Wallet.OpenWalletAsync(issuerWalletName, null, issuerWalletCredentials))
using (var proverWallet = await Wallet.OpenWalletAsync(proverWalletName, null, proverWalletCredentials))
{
//4. Issuer Creates Credential Schema
var schemaName = "gvt";
var schemaVersion = "1.0";
var schemaAttributes = "[\"name\", \"age\", \"sex\", \"height\"]";
var createSchemaResult = await AnonCreds.IssuerCreateSchemaAsync(issuerDid, schemaName, schemaVersion, schemaAttributes);
var schemaId = createSchemaResult.SchemaId;
var schemaJson = createSchemaResult.SchemaJson;
//5. Issuer create Credential Definition
var credDefTag = "Tag1";
var credDefConfigJson = "{\"support_revocation\":false}";
var createCredDefResult = await AnonCreds.IssuerCreateAndStoreCredentialDefAsync(issuerWallet, issuerDid, schemaJson, credDefTag, null, credDefConfigJson);
var credDefId = createCredDefResult.CredDefId;
var credDefJson = createCredDefResult.CredDefJson;
//6. Prover create Master Secret
var masterSecretId = await AnonCreds.ProverCreateMasterSecretAsync(proverWallet, null);
//7. Issuer Creates Credential Offer
var credOffer = await AnonCreds.IssuerCreateCredentialOfferAsync(issuerWallet, credDefId);
//8. Prover Creates Credential Request
var createCredReqResult = await AnonCreds.ProverCreateCredentialReqAsync(proverWallet, proverDid, credOffer, credDefJson, masterSecretId);
var credReqJson = createCredReqResult.CredentialRequestJson;
var credReqMetadataJson = createCredReqResult.CredentialRequestMetadataJson;
//9. Issuer create Credential
var credValuesJson = "{\n" +
" \"sex\": {\"raw\": \"male\", \"encoded\": \"594465709955896723921094925839488742869205008160769251991705001\"},\n" +
" \"name\": {\"raw\": \"Alex\", \"encoded\": \"1139481716457488690172217916278103335\"},\n" +
" \"height\": {\"raw\": \"175\", \"encoded\": \"175\"},\n" +
" \"age\": {\"raw\": \"28\", \"encoded\": \"28\"}\n" +
" }";
var createCredentialResult = await AnonCreds.IssuerCreateCredentialAsync(issuerWallet, credOffer, credReqJson, credValuesJson, null, null);
var credential = createCredentialResult.CredentialJson;
//10. Prover Stores Credential
await AnonCreds.ProverStoreCredentialAsync(proverWallet, null, credReqJson, credReqMetadataJson, credential, credDefJson, null);
//11. Prover Gets Credentials for Proof Request
var proofRequestJson = "{" +
" \"nonce\":\"123432421212\",\n" +
" \"name\":\"proof_req_1\",\n" +
" \"version\":\"0.1\", " +
" \"requested_attributes\": {" +
" \"attr1_referent\":{\"name\":\"name\"}," +
" \"attr2_referent\":{\"name\":\"sex\"}," +
" \"attr3_referent\":{\"name\":\"phone\"}" +
" }," +
" \"requested_predicates\":{" +
" \"predicate1_referent\":{\"name\":\"age\",\"p_type\":\">=\",\"p_value\":18}" +
" }" +
" }";
var credentialsForProofJson = await AnonCreds.ProverGetCredentialsForProofReqAsync(proverWallet, proofRequestJson);
var credentialsForProof = JObject.Parse(credentialsForProofJson);
var credentialsForAttribute1 = (JArray)credentialsForProof["attrs"]["attr1_referent"];
var credentialsForAttribute2 = (JArray)credentialsForProof["attrs"]["attr2_referent"];
var credentialsForAttribute3 = (JArray)credentialsForProof["attrs"]["attr3_referent"];
var credentialsForPredicate = (JArray)credentialsForProof["predicates"]["predicate1_referent"];
Debug.Assert(credentialsForAttribute1.Count == 1);
Debug.Assert(credentialsForAttribute2.Count == 1);
Debug.Assert(credentialsForAttribute3.Count == 0);
Debug.Assert(credentialsForPredicate.Count == 1);
var credentialId = credentialsForAttribute1[0]["cred_info"]["referent"].ToObject <string>();
//12. Prover Creates Proof
var selfAttestedValue = "8-800-300";
var requestedCredentialsJson = string.Format(
"{{\n" +
" \"self_attested_attributes\":{{\"attr3_referent\":\"{0}\"}},\n" +
" \"requested_attributes\":{{\"attr1_referent\":{{\"cred_id\":\"{1}\", \"revealed\":true}},\n" +
" \"attr2_referent\":{{\"cred_id\":\"{2}\", \"revealed\":false}}}},\n" +
" \"requested_predicates\":{{\"predicate1_referent\":{{\"cred_id\":\"{3}\"}}}}\n" +
" }}", selfAttestedValue, credentialId, credentialId, credentialId);
var schemas = string.Format("{{\"{0}\":{1}}}", schemaId, schemaJson);
var credentialDefs = string.Format("{{\"{0}\":{1}}}", credDefId, credDefJson);
var revocStates = "{}";
var proofJson = await AnonCreds.ProverCreateProofAsync(proverWallet, proofRequestJson, requestedCredentialsJson, masterSecretId, schemas, credentialDefs, revocStates);
var proof = JObject.Parse(proofJson);
//13. Verifier verify Proof
var revealedAttr1 = proof["requested_proof"]["revealed_attrs"]["attr1_referent"];
Debug.Assert("Alex" == revealedAttr1["raw"].ToObject <string>());
Debug.Assert(null != proof["requested_proof"]["unrevealed_attrs"]["attr2_referent"]["sub_proof_index"]);
Debug.Assert(selfAttestedValue == proof["requested_proof"]["self_attested_attrs"]["attr3_referent"].ToObject <string>());
var revocRegDefs = "{}";
var revocRegs = "{}";
var valid = await AnonCreds.VerifierVerifyProofAsync(proofRequestJson, proofJson, schemas, credentialDefs, revocRegDefs, revocRegs);
Debug.Assert(valid);
//14. Close wallets and pool
await issuerWallet.CloseAsync();
await proverWallet.CloseAsync();
await pool.CloseAsync();
}
}
finally
{
//15. Delete wallets and Pool ledger config
await WalletUtils.DeleteWalletAsync(issuerWalletName, issuerWalletCredentials);
await WalletUtils.DeleteWalletAsync(proverWalletName, proverWalletCredentials);
await PoolUtils.DeletePoolLedgerConfigAsync(PoolUtils.DEFAULT_POOL_NAME);
}
Console.WriteLine("Anoncreds sample -> completed");
}
public static async Task Execute()
{
Console.WriteLine("Crypto sample -> started");
var myWalletName = "myWallet";
var theirWalletName = "theirWallet";
var myWalletCredentials = "{\"key\":\"issuer_wallet_key\"}";
var theirWalletCredentials = "{\"key\":\"prover_wallet_key\"}";
try
{
//1. Create and Open Pool
await PoolUtils.CreatePoolLedgerConfig();
//2. Create and Open My Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, myWalletName, "default", null, myWalletCredentials);
// 3. Create and Open Trustee Wallet
await WalletUtils.CreateWalletAsync(PoolUtils.DEFAULT_POOL_NAME, theirWalletName, "default", null, theirWalletCredentials);
//4. Open pool and wallets in using statements to ensure they are closed when finished.
using (var pool = await Pool.OpenPoolLedgerAsync(PoolUtils.DEFAULT_POOL_NAME, "{}"))
using (var myWallet = await Wallet.OpenWalletAsync(myWalletName, null, myWalletCredentials))
using (var theirWallet = await Wallet.OpenWalletAsync(theirWalletName, null, theirWalletCredentials))
{
//5. Create My Did
var createMyDidResult = await Did.CreateAndStoreMyDidAsync(myWallet, "{}");
//6. Create Their Did
var createTheirDidResult = await Did.CreateAndStoreMyDidAsync(theirWallet, "{}");
var theirDid = createTheirDidResult.Did;
var theirVerkey = createTheirDidResult.VerKey;
//7. Store Their DID
var identityJson = string.Format("{{\"did\":\"{0}\", \"verkey\":\"{1}\"}}", theirDid, theirVerkey);
await Did.StoreTheirDidAsync(myWallet, identityJson);
//8. Their sign message
var msgBytes = Encoding.UTF8.GetBytes("{\n" +
" \"reqId\":1495034346617224651,\n" +
" \"identifier\":\"GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL\",\n" +
" \"operation\":{\n" +
" \"type\":\"1\",\n" +
" \"dest\":\"4efZu2SXufS556yss7W5k6Po37jt4371RM4whbPKBKdB\"\n" +
" }\n" +
"}");
var signatureBytes = await Crypto.SignAsync(theirWallet, theirVerkey, msgBytes);
//9. Verify message
var valid = await Crypto.VerifyAsync(theirVerkey, msgBytes, signatureBytes);
Debug.Assert(valid == true);
//10. Close wallets and pool
await myWallet.CloseAsync();
await theirWallet.CloseAsync();
await pool.CloseAsync();
}
}
finally
{
// 11. Delete wallets and Pool ledger config
await WalletUtils.DeleteWalletAsync(myWalletName, myWalletCredentials);
await WalletUtils.DeleteWalletAsync(theirWalletName, theirWalletCredentials);
await PoolUtils.DeletePoolLedgerConfigAsync(PoolUtils.DEFAULT_POOL_NAME);
}
Console.WriteLine("Crypto sample -> completed");
}
public static async Task Execute()
{
Console.Write("Executing ledger sample (requires local pool node)... ");
var myWalletConfig = "{\"id\":\"my_wallet\"}";
var theirWalletConfig = "{\"id\":\"their_wallet\"}";
var trusteeSeed = "000000000000000000000000Trustee1";
var myWalletCredentials = "{\"key\":\"issuer_wallet_key\"}";
var theirWalletCredentials = "{\"key\":\"prover_wallet_key\"}";
try
{
// 1. Create ledger config from genesis txn file
await PoolUtils.CreatePoolLedgerConfig();
//2. Create and Open My Wallet
await WalletUtils.CreateWalletAsync(myWalletConfig, myWalletCredentials);
// 3. Create and Open Trustee Wallet
await WalletUtils.CreateWalletAsync(theirWalletConfig, theirWalletCredentials);
//4. Open pool and wallets in using statements to ensure they are closed when finished.
using (var pool = await Pool.OpenPoolLedgerAsync(PoolUtils.DEFAULT_POOL_NAME, "{}"))
using (var myWallet = await Wallet.OpenWalletAsync(myWalletConfig, myWalletCredentials))
using (var trusteeWallet = await Wallet.OpenWalletAsync(theirWalletConfig, theirWalletCredentials))
{
//5. Create My Did
var createMyDidResult = await Did.CreateAndStoreMyDidAsync(myWallet, "{}");
var myDid = createMyDidResult.Did;
var myVerkey = createMyDidResult.VerKey;
//6. Create Did from Trustee1 seed
var theirDidJson = string.Format("{{\"seed\":\"{0}\"}}", trusteeSeed);
var createTheirDidResult = await Did.CreateAndStoreMyDidAsync(trusteeWallet, theirDidJson);
var trusteeDid = createTheirDidResult.Did;
//7. Build Nym Request
var nymRequest = await Ledger.BuildNymRequestAsync(trusteeDid, myDid, myVerkey, null, null);
//8. Trustee Sign Nym Request
var nymResponseJson = await Ledger.SignAndSubmitRequestAsync(pool, trusteeWallet, trusteeDid, nymRequest);
var nymResponse = JObject.Parse(nymResponseJson);
Debug.Assert(string.Equals(myDid, nymResponse["result"]["txn"]["data"]["dest"].ToObject <string>()));
Debug.Assert(string.Equals(myVerkey, nymResponse["result"]["txn"]["data"]["verkey"].ToObject <string>()));
//9. Close wallets and pool
await myWallet.CloseAsync();
await trusteeWallet.CloseAsync();
await pool.CloseAsync();
}
Console.WriteLine("OK", Color.Green);
}
catch (Exception e)
{
Console.WriteLine($"Error: {e.Message}", Color.Red);
}
finally
{
//10. Delete wallets and Pool ledger config
await WalletUtils.DeleteWalletAsync(myWalletConfig, myWalletCredentials);
await WalletUtils.DeleteWalletAsync(theirWalletConfig, theirWalletCredentials);
await PoolUtils.DeletePoolLedgerConfigAsync(PoolUtils.DEFAULT_POOL_NAME);
}
}