protected async Task InitCommonWallet()
{
if (_walletOpened)
{
return;
}
StorageUtils.CleanupStorage();
var walletName = "anoncredsCommonWallet";
await Wallet.CreateWalletAsync("default", walletName, "default", null, null);
commonWallet = await Wallet.OpenWalletAsync(walletName, null, null);
claimDef = await AnonCreds.IssuerCreateAndStoreClaimDefAsync(commonWallet, issuerDid, schema, null, false);
await AnonCreds.ProverStoreClaimOfferAsync(commonWallet, string.Format(claimOfferTemplate, issuerDid, 1));
await AnonCreds.ProverStoreClaimOfferAsync(commonWallet, string.Format(claimOfferTemplate, issuerDid, 2));
await AnonCreds.ProverStoreClaimOfferAsync(commonWallet, string.Format(claimOfferTemplate, issuerDid2, 2));
await AnonCreds.ProverCreateMasterSecretAsync(commonWallet, masterSecretName);
var claimOffer = string.Format("{{\"issuer_did\":\"{0}\",\"schema_seq_no\":{1}}}", issuerDid, 1);
var claimRequest = await AnonCreds.ProverCreateAndStoreClaimReqAsync(commonWallet, "CnEDk9HrMnmiHXEV1WFgbVCRteYnPqsJwrTdcZaNhFVW", claimOffer, claimDef, masterSecretName);
var claim = "{\"sex\":[\"male\",\"5944657099558967239210949258394887428692050081607692519917050011144233115103\"],\n" +
" \"name\":[\"Alex\",\"1139481716457488690172217916278103335\"],\n" +
" \"height\":[\"175\",\"175\"],\n" +
" \"age\":[\"28\",\"28\"]\n" +
" }";
var createClaimResult = await AnonCreds.IssuerCreateClaimAsync(commonWallet, claimRequest, claim, -1);
var claimJson = createClaimResult.ClaimJson;
await AnonCreds.ProverStoreClaimAsync(commonWallet, claimJson, createClaimResult.RevocRegUpdateJson);
_walletOpened = true;
}
public async Task TestProverStoreClaimWorksForInvalidClaimJson()
{
await InitCommonWallet();
var claimOffer = string.Format(_claimOfferTemplate, _issuerDid, 1);
await AnonCreds.ProverCreateAndStoreClaimReqAsync(_commonWallet, _proverDid, claimOffer, _claimDef, _masterSecretName);
var claimJson = "{\"claim\":{\"sex\":[\"male\",\"1\"],\"age\":[\"28\",\"28\"],\"name\":[\"Alex\",\"1\"],\"height\":[\"175\",\"175\"]},\n" +
" \"issuer_did\":1,\"\n" +
" \"revoc_reg_seq_no\":null,\n" +
" \"schema_seq_no\":1}";
var ex = await Assert.ThrowsExceptionAsync <IndyException>(() =>
AnonCreds.ProverStoreClaimAsync(_commonWallet, claimJson)
);
Assert.AreEqual(ErrorCode.CommonInvalidStructure, ex.ErrorCode);
}
public async Task TestExerciseCustomWallet()
{
var walletName = "exerciseWalletTypeWorks";
await Wallet.CreateWalletAsync("default", walletName, "inmem", null, null);
var wallet = await Wallet.OpenWalletAsync(walletName, null, null);
Assert.IsNotNull(wallet);
var claimDef = await AnonCreds.IssuerCreateAndStoreClaimDefAsync(wallet, _issuerDid, _schema, null, false);
await AnonCreds.ProverStoreClaimOfferAsync(wallet, string.Format(_claimOfferTemplate, _issuerDid, 1));
await AnonCreds.ProverStoreClaimOfferAsync(wallet, string.Format(_claimOfferTemplate, _issuerDid, 2));
await AnonCreds.ProverStoreClaimOfferAsync(wallet, string.Format(_claimOfferTemplate, _issuerDid2, 2));
await AnonCreds.ProverCreateMasterSecretAsync(wallet, _masterSecretName);
var claimOffer = string.Format("{{\"issuer_did\":\"{0}\",\"schema_seq_no\":{1}}}", _issuerDid, 1);
var claimRequest = await AnonCreds.ProverCreateAndStoreClaimReqAsync(wallet, "CnEDk9HrMnmiHXEV1WFgbVCRteYnPqsJwrTdcZaNhFVW", claimOffer, claimDef, _masterSecretName);
var claim = "{\"sex\":[\"male\",\"5944657099558967239210949258394887428692050081607692519917050011144233115103\"],\n" +
" \"name\":[\"Alex\",\"1139481716457488690172217916278103335\"],\n" +
" \"height\":[\"175\",\"175\"],\n" +
" \"age\":[\"28\",\"28\"]\n" +
" }";
var createClaimResult = await AnonCreds.IssuerCreateClaimAsync(wallet, claimRequest, claim, -1);
var claimJson = createClaimResult.ClaimJson;
await AnonCreds.ProverStoreClaimAsync(wallet, claimJson);
var filter = string.Format("{{\"issuer_did\":\"{0}\"}}", _issuerDid);
var claimOffers = await AnonCreds.ProverGetClaimOffersAsync(wallet, filter);
await wallet.CloseAsync();
}
public async Task TestAnonCredsDemo()
{
//4. Issuer create ClaimDef
var schemaJson = "{\n" +
" \"seqNo\":1,\n" +
" \"data\": {\n" +
" \"name\":\"gvt\",\n" +
" \"version\":\"1.0\",\n" +
" \"attr_names\":[\"age\",\"sex\",\"height\",\"name\"]\n" +
" }\n" +
" }";
var issuerDid = "NcYxiDXkpYi6ov5FcYDi1e";
var claimDef = await AnonCreds.IssuerCreateAndStoreClaimDefAsync(_issuerWallet, issuerDid, schemaJson, null, false);
Assert.IsNotNull(claimDef);
//5. Prover create Master Secret
var masterSecret = "masterSecretName";
await AnonCreds.ProverCreateMasterSecretAsync(_proverWallet, masterSecret);
//6. Prover store Claim Offer
var claimOffer = string.Format("{{\"issuer_did\":\"{0}\", \"schema_seq_no\":{1}}}", issuerDid, 1);
await AnonCreds.ProverStoreClaimOfferAsync(_proverWallet, claimOffer);
//7. Prover get Claim Offers
var claimOfferFilter = string.Format("{{\"issuer_did\":\"{0}\"}}", issuerDid);
var claimOffersJson = await AnonCreds.ProverGetClaimOffersAsync(_proverWallet, claimOfferFilter);
var claimOffersObject = JArray.Parse(claimOffersJson);
Assert.AreEqual(claimOffersObject.Count, 1);
var claimOfferObject = (JObject)claimOffersObject[0];
var claimOfferJson = claimOfferObject.ToString();
//8. Prover create ClaimReq
var proverDid = "BzfFCYk";
var claimReq = await AnonCreds.ProverCreateAndStoreClaimReqAsync(_proverWallet, proverDid, claimOfferJson, claimDef, masterSecret);
Assert.IsNotNull(claimReq);
//9. Issuer create Claim
var claimAttributesJson = "{\n" +
" \"sex\":[\"male\",\"5944657099558967239210949258394887428692050081607692519917050011144233115103\"],\n" +
" \"name\":[\"Alex\",\"1139481716457488690172217916278103335\"],\n" +
" \"height\":[\"175\",\"175\"],\n" +
" \"age\":[\"28\",\"28\"]\n" +
" }";
var createClaimResult = await AnonCreds.IssuerCreateClaimAsync(_issuerWallet, claimReq, claimAttributesJson, -1);
Assert.IsNotNull(createClaimResult);
var claimJson = createClaimResult.ClaimJson;
//10. Prover store Claim
await AnonCreds.ProverStoreClaimAsync(_proverWallet, claimJson);
//11. Prover gets Claims for Proof Request
var proofRequestJson = "{\n" +
" \"nonce\":\"123432421212\",\n" +
" \"name\":\"proof_req_1\",\n" +
" \"version\":\"0.1\",\n" +
" \"requested_attrs\":{\"attr1_referent\":{\"name\":\"name\",\"restrictions\":[{\"schema_seq_no\":1}]},\n" +
" \"attr2_referent\":{\"name\":\"sex\",\"restrictions\":[{\"schema_seq_no\":1}]}},\n" +
" \"requested_predicates\":{\"predicate1_referent\":{\"attr_name\":\"age\",\"p_type\":\">=\",\"value\":18}}\n" +
" }";
var claimsForProofJson = await AnonCreds.ProverGetClaimsForProofReqAsync(_proverWallet, proofRequestJson);
Assert.IsNotNull(claimsForProofJson);
var claimsForProof = JObject.Parse(claimsForProofJson);
var claimsForAttribute1 = (JArray)claimsForProof["attrs"]["attr1_referent"];
var claimsForAttribute2 = (JArray)claimsForProof["attrs"]["attr1_referent"];
var claimsForPredicate = (JArray)claimsForProof["predicates"]["predicate1_referent"];
Assert.AreEqual(claimsForAttribute1.Count, 1);
Assert.AreEqual(claimsForAttribute2.Count, 1);
Assert.AreEqual(claimsForPredicate.Count, 1);
var claimUuid = claimsForAttribute1[0].Value <string>("referent");
//12. Prover create Proof
var selfAttestedValue = "yes";
var requestedClaimsJson = string.Format("{{\n" +
" \"self_attested_attributes\":{{\"self1\":\"{0}\"}},\n" +
" \"requested_attrs\":{{\"attr1_referent\":[\"{1}\", true],\n" +
" \"attr2_referent\":[\"{2}\", false]}},\n" +
" \"requested_predicates\":{{\"predicate1_referent\":\"{3}\"}}\n" +
" }}", selfAttestedValue, claimUuid, claimUuid, claimUuid);
var schemasJson = string.Format("{{\"{0}\":{1}}}", claimUuid, schemaJson);
var claimDefsJson = string.Format("{{\"{0}\":{1}}}", claimUuid, claimDef);
var revocRegsJson = "{}";
var proofJson = await AnonCreds.ProverCreateProofAsync(_proverWallet, proofRequestJson, requestedClaimsJson, schemasJson,
masterSecret, claimDefsJson, revocRegsJson);
Assert.IsNotNull(proofJson);
var proof = JObject.Parse(proofJson);
//13. Verifier verify Proof
Assert.AreEqual("Alex",
proof["requested_proof"]["revealed_attrs"]["attr1_referent"][1]);
Assert.IsNotNull(proof["requested_proof"]["unrevealed_attrs"].Value <string>("attr2_referent"));
Assert.AreEqual(selfAttestedValue, proof["requested_proof"]["self_attested_attrs"].Value <string>("self1"));
Boolean valid = await AnonCreds.VerifierVerifyProofAsync(proofRequestJson, proofJson, schemasJson, claimDefsJson, revocRegsJson);
Assert.IsTrue(valid);
}
public async Task TestAnonCredsWorksForSingleIssuerSingleProverMultipleClaims()
{
var issuerDid = "NcYxiDXkpYi6ov5FcYDi1e";
//1. Issuer create ClaimDef
var gvtSchemaJson = "{\n" +
" \"seqNo\":1,\n" +
" \"data\": {\n" +
" \"name\":\"gvt\",\n" +
" \"version\":\"1.0\",\n" +
" \"attr_names\":[\"age\",\"sex\",\"height\",\"name\"]\n" +
" }\n" +
" }";
var gvtClaimDef = await AnonCreds.IssuerCreateAndStoreClaimDefAsync(_issuerWallet, issuerDid, gvtSchemaJson, null, false);
//2. Issuer create ClaimDef
var xyzSchemaJson = "{\n" +
" \"seqNo\":2,\n" +
" \"data\": {\n" +
" \"name\":\"xyz\",\n" +
" \"version\":\"1.0\",\n" +
" \"attr_names\":[\"status\",\"period\"]\n" +
" }\n" +
" }";
var xyzClaimDef = await AnonCreds.IssuerCreateAndStoreClaimDefAsync(_issuerWallet, issuerDid, xyzSchemaJson, null, false);
//3. Prover create Master Secret
var masterSecret = "masterSecretName";
await AnonCreds.ProverCreateMasterSecretAsync(_proverWallet, masterSecret);
//4. Prover store Claim Offer received from Issuer
var claimOffer = string.Format("{{\"issuer_did\":\"{0}\", \"schema_seq_no\":{1}}}", issuerDid, 1);
await AnonCreds.ProverStoreClaimOfferAsync(_proverWallet, claimOffer);
//5. Prover store Claim Offer received from Issuer
var claimOffer2 = string.Format("{{\"issuer_did\":\"{0}\", \"schema_seq_no\":{1}}}", issuerDid, 2);
await AnonCreds.ProverStoreClaimOfferAsync(_proverWallet, claimOffer2);
//6. Prover get Claim Offers
var claimOffersJson = await AnonCreds.ProverGetClaimOffersAsync(_proverWallet, "{}");
var claimOffersObject = JArray.Parse(claimOffersJson);
Assert.AreEqual(2, claimOffersObject.Count);
var claimOfferObj1 = claimOffersObject[0];
var claimOfferObj2 = claimOffersObject[1];
var gvtClaimOffer = claimOfferObj1.Value <int>("schema_seq_no") == 1 ? claimOfferObj1.ToString() : claimOfferObj2.ToString();
var xyzClaimOffer = claimOfferObj1.Value <int>("schema_seq_no") == 2 ? claimOfferObj1.ToString() : claimOfferObj2.ToString();
//7. Prover create ClaimReq for GVT Claim Offer
var proverDid = "BzfFCYk";
var gvtClaimReq = await AnonCreds.ProverCreateAndStoreClaimReqAsync(_proverWallet, proverDid, gvtClaimOffer, gvtClaimDef, masterSecret);
//8. Issuer create Claim
var gvtClaimAttributesJson = "{\n" +
" \"sex\":[\"male\",\"5944657099558967239210949258394887428692050081607692519917050011144233115103\"],\n" +
" \"name\":[\"Alex\",\"1139481716457488690172217916278103335\"],\n" +
" \"height\":[\"175\",\"175\"],\n" +
" \"age\":[\"28\",\"28\"]\n" +
" }";
var gvtCreateClaimResult = await AnonCreds.IssuerCreateClaimAsync(_issuerWallet, gvtClaimReq, gvtClaimAttributesJson, -1);
var gvtClaimJson = gvtCreateClaimResult.ClaimJson;
//9. Prover store Claim
await AnonCreds.ProverStoreClaimAsync(_proverWallet, gvtClaimJson);
//10. Prover create ClaimReq for GVT Claim Offer
var xyzClaimReq = await AnonCreds.ProverCreateAndStoreClaimReqAsync(_proverWallet, proverDid, xyzClaimOffer, xyzClaimDef, masterSecret);
//11. Issuer create Claim
var xyzClaimAttributesJson = "{\n" +
" \"status\":[\"partial\",\"51792877103171595686471452153480627530895\"],\n" +
" \"period\":[\"8\",\"8\"]\n" +
" }";
var xyzCreateClaimResult = await AnonCreds.IssuerCreateClaimAsync(_issuerWallet, xyzClaimReq, xyzClaimAttributesJson, -1);
var xyzClaimJson = xyzCreateClaimResult.ClaimJson;
//12. Prover store Claim
await AnonCreds.ProverStoreClaimAsync(_proverWallet, xyzClaimJson);
//13. Prover gets Claims for Proof Request
var proofRequestJson = "{\n" +
" \"nonce\":\"123432421212\",\n" +
" \"name\":\"proof_req_1\",\n" +
" \"version\":\"0.1\",\n" +
" \"requested_attrs\":{\"attr1_referent\":{\"name\":\"name\",\"restrictions\":[{\"schema_seq_no\":1}]}},\n" +
" \"requested_predicates\":{\"predicate1_referent\":{\"attr_name\":\"age\",\"p_type\":\">=\",\"value\":18}," +
" \"predicate2_referent\":{\"attr_name\":\"period\",\"p_type\":\">=\",\"value\":5}}\n" +
" }";
var claimsForProofJson = await AnonCreds.ProverGetClaimsForProofReqAsync(_proverWallet, proofRequestJson);
Assert.IsNotNull(claimsForProofJson);
var claimsForProof = JObject.Parse(claimsForProofJson);
var claimsForAttribute1 = (JArray)claimsForProof["attrs"]["attr1_referent"];
var claimsForPredicate1 = (JArray)claimsForProof["predicates"]["predicate1_referent"];
var claimsForPredicate2 = (JArray)claimsForProof["predicates"]["predicate2_referent"];
Assert.AreEqual(claimsForAttribute1.Count, 1);
Assert.AreEqual(claimsForPredicate1.Count, 1);
Assert.AreEqual(claimsForPredicate2.Count, 1);
var claimUuidForAttr1 = claimsForAttribute1[0].Value <string>("referent");
var claimUuidForPredicate1 = claimsForPredicate1[0].Value <string>("referent");
var claimUuidForPredicate2 = claimsForPredicate2[0].Value <string>("referent");
//14. Prover create Proof
var requestedClaimsJson = string.Format("{{\n" +
" \"self_attested_attributes\":{{}},\n" +
" \"requested_attrs\":{{\"attr1_referent\":[\"{0}\", true]}},\n" +
" \"requested_predicates\":{{\"predicate1_referent\":\"{1}\"," +
" \"predicate2_referent\":\"{2}\"}}\n" +
" }}", claimUuidForAttr1, claimUuidForPredicate1, claimUuidForPredicate2);
var schemasJson = string.Format("{{\"{0}\":{1}, \"{2}\":{3}}}", claimUuidForAttr1, gvtSchemaJson, claimUuidForPredicate2, xyzSchemaJson);
var claimDefsJson = string.Format("{{\"{0}\":{1}, \"{2}\":{3}}}", claimUuidForAttr1, gvtClaimDef, claimUuidForPredicate2, xyzClaimDef);
var revocRegsJson = "{}";
var proofJson = await AnonCreds.ProverCreateProofAsync(_proverWallet, proofRequestJson, requestedClaimsJson, schemasJson,
masterSecret, claimDefsJson, revocRegsJson);
Assert.IsNotNull(proofJson);
var proof = JObject.Parse(proofJson);
//15. Verifier verify Proof
Assert.AreEqual("Alex",
proof["requested_proof"]["revealed_attrs"]["attr1_referent"][1]);
var valid = await AnonCreds.VerifierVerifyProofAsync(proofRequestJson, proofJson, schemasJson, claimDefsJson, revocRegsJson);
Assert.IsTrue(valid);
}
public async Task TestVerifyProofWorksForProofDoesNotCorrespondToProofRequest()
{
//1. Issuer create ClaimDef
var schemaJson = "{\n" +
" \"seqNo\":1,\n" +
" \"data\": {\n" +
" \"name\":\"gvt\",\n" +
" \"version\":\"1.0\",\n" +
" \"keys\":[\"age\",\"sex\",\"height\",\"name\"]\n" +
" }\n" +
" }";
var issuerDid = "NcYxiDXkpYi6ov5FcYDi1e";
var claimDef = await AnonCreds.IssuerCreateAndStoreClaimDefAsync(_issuerWallet, issuerDid, schemaJson, null, false);
Assert.IsNotNull(claimDef);
//2. Prover create Master Secret
var masterSecret = "masterSecretName";
await AnonCreds.ProverCreateMasterSecretAsync(_proverWallet, masterSecret);
//3. Prover store Claim Offer
var claimOffer = string.Format("{{\"issuer_did\":\"{0}\", \"schema_seq_no\":{1}}}", issuerDid, 1);
await AnonCreds.ProverStoreClaimOfferAsync(_proverWallet, claimOffer);
//4. Prover get Claim Offers
var claimOfferFilter = string.Format("{{\"issuer_did\":\"{0}\"}}", issuerDid);
var claimOffersJson = await AnonCreds.ProverGetClaimOffersAsync(_proverWallet, claimOfferFilter);
var claimOffersObject = JArray.Parse(claimOffersJson);
Assert.AreEqual(claimOffersObject.Count, 1);
var claimOfferObject = claimOffersObject[0];
var claimOfferJson = claimOfferObject.ToString();
//5. Prover create ClaimReq
var proverDid = "BzfFCYk";
var claimReq = await AnonCreds.ProverCreateAndStoreClaimReqAsync(_proverWallet, proverDid, claimOfferJson, claimDef, masterSecret);
Assert.IsNotNull(claimReq);
//6. Issuer create Claim
var claimAttributesJson = "{\n" +
" \"sex\":[\"male\",\"5944657099558967239210949258394887428692050081607692519917050011144233115103\"],\n" +
" \"name\":[\"Alex\",\"1139481716457488690172217916278103335\"],\n" +
" \"height\":[\"175\",\"175\"],\n" +
" \"age\":[\"28\",\"28\"]\n" +
" }";
var createClaimResult = await AnonCreds.IssuerCreateClaimAsync(_issuerWallet, claimReq, claimAttributesJson, -1);
Assert.IsNotNull(createClaimResult);
var claimJson = createClaimResult.ClaimJson;
//7. Prover store Claim
await AnonCreds.ProverStoreClaimAsync(_proverWallet, claimJson);
//8. Prover gets Claims for Proof Request
var proofRequestJson = "{\n" +
" \"nonce\":\"123432421212\",\n" +
" \"name\":\"proof_req_1\",\n" +
" \"version\":\"0.1\",\n" +
" \"requested_attrs\":{\"attr1_uuid\":{\"schema_seq_no\":1,\"name\":\"name\"}},\n" +
" \"requested_predicates\":{}\n" +
" }";
var claimsForProofJson = await AnonCreds.ProverGetClaimsForProofReqAsync(_proverWallet, proofRequestJson);
Assert.IsNotNull(claimsForProofJson);
var claimsForProof = JObject.Parse(claimsForProofJson);
var claimsForAttribute1 = (JArray)claimsForProof["attrs"]["attr1_uuid"];
Assert.AreEqual(claimsForAttribute1.Count, 1);
var claimUuid = claimsForAttribute1[0].Value <string>("claim_uuid");
//9. Prover create Proof
var selfAttestedValue = "yes";
var requestedClaimsJson = string.Format("{{\n" +
" \"self_attested_attributes\":{{\"self1\":\"{0}\"}},\n" +
" \"requested_attrs\":{{\"attr1_uuid\":[\"{1}\", true]}},\n" +
" \"requested_predicates\":{{}}\n" +
" }}", selfAttestedValue, claimUuid);
var schemasJson = string.Format("{{\"{0}\":{1}}}", claimUuid, schemaJson);
var claimDefsJson = string.Format("{{\"{0}\":{1}}}", claimUuid, claimDef);
var revocRegsJson = "{}";
//TODO: Not sure why this call is failing...
var proofJson = await AnonCreds.ProverCreateProofAsync(_proverWallet, proofRequestJson, requestedClaimsJson, schemasJson,
masterSecret, claimDefsJson, revocRegsJson);
Assert.IsNotNull(proofJson);
var proof = JObject.Parse(proofJson);
//10. Verifier verify Proof
Assert.AreEqual("Alex",
proof["requested_proof"]["revealed_attrs"]["attr1_uuid"][1]);
Assert.AreEqual(selfAttestedValue, proof["requested_proof"]["self_attested_attrs"].Value <string>("self1"));
proofRequestJson = "{\n" +
" \"nonce\":\"123432421212\",\n" +
" \"name\":\"proof_req_1\",\n" +
" \"version\":\"0.1\",\n" +
" \"requested_attrs\":{\"attr1_uuid\":{\"schema_seq_no\":1,\"name\":\"name\"}},\n" +
" \"requested_predicates\":{\"predicate1_uuid\":{\"attr_name\":\"age\",\"p_type\":\"GE\",\"value\":18}\n" +
" }";
var ex = await Assert.ThrowsExceptionAsync <IndyException>(() =>
AnonCreds.VerifierVerifyProofAsync(proofRequestJson, proofJson, schemasJson, claimDefsJson, revocRegsJson)
);
Assert.AreEqual(ErrorCode.CommonInvalidStructure, ex.ErrorCode);
}
public static async Task Execute()
{
var issuerWalletName = "issuerWallet";
var proverWalletName = "proverWallet";
try
{
//1. Create and Open Pool
await PoolUtils.CreatePoolLedgerConfig();
//2. Issuer Create and Open Wallet
await WalletUtils.CreateWalleatAsync(PoolUtils.DEFAULT_POOL_NAME, issuerWalletName, "default", null, null);
//3. Prover Create and Open Wallet
await WalletUtils.CreateWalleatAsync(PoolUtils.DEFAULT_POOL_NAME, proverWalletName, "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 issuerWallet = await Wallet.OpenWalletAsync(issuerWalletName, null, null))
using (var proverWallet = await Wallet.OpenWalletAsync(proverWalletName, null, null))
{
//5. Issuer create ClaimDef
var schemaJson = "{\n" +
" \"seqNo\":1,\n" +
" \"data\": {\n" +
" \"name\":\"gvt\",\n" +
" \"version\":\"1.0\",\n" +
" \"attr_names\":[\"age\",\"sex\",\"height\",\"name\"]\n" +
" }\n" +
"}";
var issuerDid = "NcYxiDXkpYi6ov5FcYDi1e";
var claimDef = await AnonCreds.IssuerCreateAndStoreClaimDefAsync(issuerWallet, issuerDid, schemaJson, null, false);
//6. Prover create Master Secret
var masterSecret = "masterSecretName";
await AnonCreds.ProverCreateMasterSecretAsync(proverWallet, masterSecret);
//7. Prover store Claim Offer
var claimOffer = string.Format("{{\"issuer_did\":\"{0}\", \"schema_seq_no\":{1}}}", issuerDid, 1);
await AnonCreds.ProverStoreClaimOfferAsync(proverWallet, claimOffer);
//8. Prover get Claim Offers
var claimOfferFilter = string.Format("{{\"issuer_did\":\"{0}\"}}", issuerDid);
var claimOffersJson = await AnonCreds.ProverGetClaimOffersAsync(proverWallet, claimOfferFilter);
var claimOffersObject = JArray.Parse(claimOffersJson);
Debug.Assert(claimOffersObject.Count == 1);
var claimOfferObject = (JObject)claimOffersObject[0];
var claimOfferJson = claimOfferObject.ToString();
//9. Prover create ClaimReq
var proverDid = "BzfFCYk";
var claimReq = await AnonCreds.ProverCreateAndStoreClaimReqAsync(proverWallet, proverDid, claimOfferJson, claimDef, masterSecret);
Debug.Assert(claimReq != null);
//10. Issuer create Claim
var claimAttributesJson = "{\n" +
" \"sex\":[\"male\",\"5944657099558967239210949258394887428692050081607692519917050011144233115103\"],\n" +
" \"name\":[\"Alex\",\"1139481716457488690172217916278103335\"],\n" +
" \"height\":[\"175\",\"175\"],\n" +
" \"age\":[\"28\",\"28\"]\n" +
"}";
var createClaimResult = await AnonCreds.IssuerCreateClaimAsync(issuerWallet, claimReq, claimAttributesJson, -1);
var claimJson = createClaimResult.ClaimJson;
//11. Prover store Claim
await AnonCreds.ProverStoreClaimAsync(proverWallet, claimJson);
//12. Prover gets Claims for Proof Request
var proofRequestJson = "{\n" +
" \"nonce\":\"123432421212\",\n" +
" \"name\":\"proof_req_1\",\n" +
" \"version\":\"0.1\",\n" +
" \"requested_attrs\":{\"attr1_uuid\":{\"schema_seq_no\":1,\"name\":\"name\"},\n" +
" \"attr2_uuid\":{\"schema_seq_no\":1,\"name\":\"sex\"}},\n" +
" \"requested_predicates\":{\"predicate1_uuid\":{\"attr_name\":\"age\",\"p_type\":\"GE\",\"value\":18}}\n" +
" }";
var claimsForProofJson = await AnonCreds.ProverGetClaimsForProofReqAsync(proverWallet, proofRequestJson);
var claimsForProof = JObject.Parse(claimsForProofJson);
var claimsForAttribute1 = (JArray)claimsForProof["attrs"]["attr1_uuid"];
var claimsForAttribute2 = (JArray)claimsForProof["attrs"]["attr1_uuid"];
var claimsForPredicate = (JArray)claimsForProof["predicates"]["predicate1_uuid"];
Debug.Assert(claimsForAttribute1.Count == 1);
Debug.Assert(claimsForAttribute2.Count == 1);
Debug.Assert(claimsForPredicate.Count == 1);
var claimUuid = claimsForAttribute1[0].Value <string>("claim_uuid");
//13. Prover create Proof
var selfAttestedValue = "yes";
var requestedClaimsJson = string.Format("{{\n" +
" \"self_attested_attributes\":{{\"self1\":\"{0}\"}},\n" +
" \"requested_attrs\":{{\"attr1_uuid\":[\"{1}\", true],\n" +
" \"attr2_uuid\":[\"{2}\", false]}},\n" +
" \"requested_predicates\":{{\"predicate1_uuid\":\"{3}\"}}\n" +
"}}", selfAttestedValue, claimUuid, claimUuid, claimUuid);
var schemasJson = string.Format("{{\"{0}\":{1}}}", claimUuid, schemaJson);
var claimDefsJson = string.Format("{{\"{0}\":{1}}}", claimUuid, claimDef);
var revocRegsJson = "{}";
var proofJson = await AnonCreds.ProverCreateProofAsync(proverWallet, proofRequestJson, requestedClaimsJson, schemasJson,
masterSecret, claimDefsJson, revocRegsJson);
var proof = JObject.Parse(proofJson);
//14. Verifier verify Proof
Debug.Assert(string.Equals("Alex", proof["requested_proof"]["revealed_attrs"]["attr1_uuid"][1].ToString()));
Debug.Assert(proof["requested_proof"]["unrevealed_attrs"].Value <string>("attr2_uuid") != null);
Debug.Assert(string.Equals(selfAttestedValue, proof["requested_proof"]["self_attested_attrs"].Value <string>("self1")));
var valid = await AnonCreds.VerifierVerifyProofAsync(proofRequestJson, proofJson, schemasJson, claimDefsJson, revocRegsJson);
Debug.Assert(valid == true);
//15. Close wallets and pool
await issuerWallet.CloseAsync();
await proverWallet.CloseAsync();
await pool.CloseAsync();
}
}
finally
{
//16. Delete wallets and Pool ledger config
await WalletUtils.DeleteWalletAsync(issuerWalletName, null);
await WalletUtils.DeleteWalletAsync(proverWalletName, null);
await PoolUtils.DeletePoolLedgerConfigAsync(PoolUtils.DEFAULT_POOL_NAME);
}
Console.WriteLine("Anoncreds sample -> completed");
}
public async Task TestProverCreateAndStoreClaimReqWorksForInvalidMasterSecret()
{
await InitCommonWallet();
var claimOffer = string.Format(claimOfferTemplate, issuerDid, 2);
var ex = await Assert.ThrowsExceptionAsync <WalletValueNotFoundException>(() =>
AnonCreds.ProverCreateAndStoreClaimReqAsync(commonWallet, proverDid, claimOffer, claimDef, "other_master_secret")
);
}
