public static Statement IssuerParametersStatement(CredentialIssuerParameters iparams, MAC mac, GroupElement ma)
=> new Statement(new GroupElement[, ]
{
// public Witness terms:
// point w, wp, x0, x1, ya
{ mac.V, Generators.Gw, O, mac.U, mac.T * mac.U, ma },
{ Generators.GV - iparams.I, O, O, Generators.Gx0, Generators.Gx1, Generators.Ga },
{ iparams.Cw, Generators.Gw, Generators.Gwp, O, O, O },
});
public WabiSabiClient(
CredentialIssuerParameters credentialIssuerParameters,
WasabiRandom randomNumberGenerator,
long rangeProofUpperBound)
{
RangeProofWidth = (int)Math.Ceiling(Math.Log2(rangeProofUpperBound));
RandomNumberGenerator = Guard.NotNull(nameof(randomNumberGenerator), randomNumberGenerator);
CredentialIssuerParameters = Guard.NotNull(nameof(credentialIssuerParameters), credentialIssuerParameters);
}
public WabiSabiClient(
CredentialIssuerParameters credentialIssuerParameters,
int numberOfCredentials,
WasabiRandom randomNumberGenerator)
{
RandomNumberGenerator = Guard.NotNull(nameof(randomNumberGenerator), randomNumberGenerator);
NumberOfCredentials = Guard.InRangeAndNotNull(nameof(numberOfCredentials), numberOfCredentials, 1, 100);
CredentialIssuerParameters = Guard.NotNull(nameof(credentialIssuerParameters), credentialIssuerParameters);
Credentials = new CredentialPool();
}
public ArenaClient(
CredentialIssuerParameters amountCredentialIssuerParameters,
CredentialIssuerParameters vsizeCredentialIssuerParameters,
CredentialPool amountCredentialPool,
CredentialPool vsizeCredentialPool,
IArenaRequestHandler requestHandler,
WasabiRandom random)
{
AmountCredentialClient = new WabiSabiClient(amountCredentialIssuerParameters, random, ProtocolConstants.MaxAmountPerAlice, amountCredentialPool);
VsizeCredentialClient = new WabiSabiClient(vsizeCredentialIssuerParameters, random, ProtocolConstants.MaxVsizePerAlice, vsizeCredentialPool);
RequestHandler = requestHandler;
}
public WabiSabiClient(
CredentialIssuerParameters credentialIssuerParameters,
WasabiRandom randomNumberGenerator,
ulong maxAmount,
CredentialPool?credentialPool = null)
{
MaxAmount = maxAmount;
RangeProofWidth = (int)Math.Ceiling(Math.Log2(MaxAmount));
RandomNumberGenerator = Guard.NotNull(nameof(randomNumberGenerator), randomNumberGenerator);
CredentialIssuerParameters = Guard.NotNull(nameof(credentialIssuerParameters), credentialIssuerParameters);
Credentials = credentialPool ?? new CredentialPool();
}
public ArenaClient(
CredentialIssuerParameters amountCredentialIssuerParameters,
CredentialIssuerParameters weightCredentialIssuerParameters,
CredentialPool amountCredentialPool,
CredentialPool weightCredentialPool,
IArenaRequestHandler requestHandler,
WasabiRandom random)
{
AmountCredentialClient = new WabiSabiClient(amountCredentialIssuerParameters, ProtocolCredentialNumber, random, ProtocolMaxAmountPerAlice, amountCredentialPool);
WeightCredentialClient = new WabiSabiClient(weightCredentialIssuerParameters, ProtocolCredentialNumber, random, ProtocolMaxWeightPerAlice, weightCredentialPool);
RequestHandler = requestHandler;
}
public WabiSabiClient(
CredentialIssuerParameters credentialIssuerParameters,
int numberOfCredentials,
WasabiRandom randomNumberGenerator,
ulong maxAmount)
{
MaxAmount = maxAmount;
RangeProofWidth = (int)Math.Ceiling(Math.Log2(MaxAmount));
RandomNumberGenerator = Guard.NotNull(nameof(randomNumberGenerator), randomNumberGenerator);
NumberOfCredentials = Guard.InRangeAndNotNull(nameof(numberOfCredentials), numberOfCredentials, 1, 100);
CredentialIssuerParameters = Guard.NotNull(nameof(credentialIssuerParameters), credentialIssuerParameters);
Credentials = new CredentialPool();
}
public static uint256 CalculateHash(
DateTimeOffset inputRegistrationStart,
TimeSpan inputRegistrationTimeout,
TimeSpan connectionConfirmationTimeout,
TimeSpan outputRegistrationTimeout,
TimeSpan transactionSigningTimeout,
MoneyRange allowedInputAmounts,
ImmutableSortedSet <ScriptType> allowedInputTypes,
MoneyRange allowedOutputAmounts,
ImmutableSortedSet <ScriptType> allowedOutputTypes,
Network network,
long feePerK,
CoordinationFeeRate coordinationFeeRate,
int maxTransactionSize,
long minRelayTxFeePerK,
long maxAmountCredentialValue,
long maxVsizeCredentialValue,
long maxVsizeAllocationPerAlice,
long maxSuggestedAmount,
CredentialIssuerParameters amountCredentialIssuerParameters,
CredentialIssuerParameters vsizeCredentialIssuerParameters)
{
var hash = StrobeHasher.Create(ProtocolConstants.RoundStrobeDomain)
.Append(ProtocolConstants.RoundInputRegistrationStartStrobeLabel, inputRegistrationStart)
.Append(ProtocolConstants.RoundInputRegistrationTimeoutStrobeLabel, inputRegistrationTimeout)
.Append(ProtocolConstants.RoundConnectionConfirmationTimeoutStrobeLabel, connectionConfirmationTimeout)
.Append(ProtocolConstants.RoundOutputRegistrationTimeoutStrobeLabel, outputRegistrationTimeout)
.Append(ProtocolConstants.RoundTransactionSigningTimeoutStrobeLabel, transactionSigningTimeout)
.Append(ProtocolConstants.RoundAllowedInputAmountsStrobeLabel, allowedInputAmounts)
.Append(ProtocolConstants.RoundAllowedInputTypesStrobeLabel, allowedInputTypes)
.Append(ProtocolConstants.RoundAllowedOutputAmountsStrobeLabel, allowedOutputAmounts)
.Append(ProtocolConstants.RoundAllowedOutputTypesStrobeLabel, allowedOutputTypes)
.Append(ProtocolConstants.RoundNetworkStrobeLabel, network.ToString())
.Append(ProtocolConstants.RoundFeeRateStrobeLabel, feePerK)
.Append(ProtocolConstants.RoundCoordinationFeeRateStrobeLabel, coordinationFeeRate)
.Append(ProtocolConstants.RoundMaxTransactionSizeStrobeLabel, maxTransactionSize)
.Append(ProtocolConstants.RoundMinRelayTxFeeStrobeLabel, minRelayTxFeePerK)
.Append(ProtocolConstants.RoundMaxAmountCredentialValueStrobeLabel, maxAmountCredentialValue)
.Append(ProtocolConstants.RoundMaxVsizeCredentialValueStrobeLabel, maxVsizeCredentialValue)
.Append(ProtocolConstants.RoundMaxVsizePerAliceStrobeLabel, maxVsizeAllocationPerAlice)
.Append(ProtocolConstants.RoundMaxSuggestedAmountLabel, maxSuggestedAmount)
.Append(ProtocolConstants.RoundAmountCredentialIssuerParametersStrobeLabel, amountCredentialIssuerParameters)
.Append(ProtocolConstants.RoundVsizeCredentialIssuerParametersStrobeLabel, vsizeCredentialIssuerParameters)
.GetHash();
return(hash);
}
public static Statement ShowCredentialStatement(CredentialPresentation c, GroupElement z, CredentialIssuerParameters iparams)
=> new Statement(new GroupElement[, ]
{
// public Witness terms:
// point z z0 t a r
{ z, iparams.I, O, O, O, O },
{ c.Cx1, Generators.Gx1, Generators.Gx0, c.Cx0, O, O },
{ c.Ca, Generators.Ga, O, O, Generators.Gg, Generators.Gh },
{ c.S, O, O, O, O, Generators.Gs }
});
public static Knowledge ShowCredentialKnowledge(CredentialPresentation presentation, Scalar z, Credential credential, CredentialIssuerParameters iparams)
=> new Knowledge(
ShowCredentialStatement(presentation, z * iparams.I, iparams),
new ScalarVector(z, (credential.Mac.T * z).Negate(), credential.Mac.T, credential.Amount, credential.Randomness));
