public BiometricData(TypeOfBiometricData typeOfBiometricData, AlgorithmIdentifier hashAlgorithm, Asn1OctetString biometricDataHash)
{
this.typeOfBiometricData = typeOfBiometricData;
this.hashAlgorithm = hashAlgorithm;
this.biometricDataHash = biometricDataHash;
this.sourceDataUri = null;
}
private void CheckValues(
BiometricData bd,
TypeOfBiometricData dataType,
AlgorithmIdentifier algID,
Asn1OctetString dataHash,
DerIA5String sourceDataURI)
{
if (!bd.TypeOfBiometricData.Equals(dataType))
{
Fail("types don't match.");
}
if (!bd.HashAlgorithm.Equals(algID))
{
Fail("hash algorithms don't match.");
}
if (!bd.BiometricDataHash.Equals(dataHash))
{
Fail("hash algorithms don't match.");
}
if (sourceDataURI != null)
{
if (!bd.SourceDataUri.Equals(sourceDataURI))
{
Fail("data uris don't match.");
}
}
else if (bd.SourceDataUri != null)
{
Fail("data uri found when none expected.");
}
}
public override void PerformTest()
{
TypeOfBiometricData dataType = new TypeOfBiometricData(TypeOfBiometricData.HandwrittenSignature);
AlgorithmIdentifier hashAlgorithm = new AlgorithmIdentifier(OiwObjectIdentifiers.IdSha1, DerNull.Instance);
Asn1OctetString dataHash = new DerOctetString(GenerateHash());
BiometricData bd = new BiometricData(dataType, hashAlgorithm, dataHash);
CheckConstruction(bd, dataType, hashAlgorithm, dataHash, null);
DerIA5String dataUri = new DerIA5String("http://test");
bd = new BiometricData(dataType, hashAlgorithm, dataHash, dataUri);
CheckConstruction(bd, dataType, hashAlgorithm, dataHash, dataUri);
bd = BiometricData.GetInstance(null);
if (bd != null)
{
Fail("null GetInstance() failed.");
}
try
{
BiometricData.GetInstance(new object());
Fail("GetInstance() failed to detect bad object.");
}
catch (ArgumentException)
{
// expected
}
}
public BiometricData(
TypeOfBiometricData typeOfBiometricData,
AlgorithmIdentifier hashAlgorithm,
Asn1OctetString biometricDataHash)
{
this.typeOfBiometricData = typeOfBiometricData;
this.hashAlgorithm = hashAlgorithm;
this.biometricDataHash = biometricDataHash;
this.sourceDataUri = null;
}
private BiometricData(Asn1Sequence seq)
{
this.typeOfBiometricData = TypeOfBiometricData.GetInstance(seq[0]);
this.hashAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]);
this.biometricDataHash = Asn1OctetString.GetInstance(seq[2]);
if (seq.Count > 3)
{
this.sourceDataUri = DerIA5String.GetInstance(seq[3]);
}
}
private BiometricData(
Asn1Sequence seq)
{
typeOfBiometricData = TypeOfBiometricData.GetInstance(seq[0]);
hashAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]);
biometricDataHash = Asn1OctetString.GetInstance(seq[2]);
if (seq.Count > 3)
{
sourceDataUri = DerIA5String.GetInstance(seq[3]);
}
}
private void CheckConstruction(
BiometricData bd,
TypeOfBiometricData dataType,
AlgorithmIdentifier hashAlgorithm,
Asn1OctetString dataHash,
DerIA5String dataUri)
{
CheckValues(bd, dataType, hashAlgorithm, dataHash, dataUri);
bd = BiometricData.GetInstance(bd);
CheckValues(bd, dataType, hashAlgorithm, dataHash, dataUri);
Asn1Sequence seq = (Asn1Sequence) Asn1Object.FromByteArray(bd.ToAsn1Object().GetEncoded());
bd = BiometricData.GetInstance(seq);
CheckValues(bd, dataType, hashAlgorithm, dataHash, dataUri);
}
private void CheckPredefinedType(
int predefinedType)
{
TypeOfBiometricData type = new TypeOfBiometricData(predefinedType);
CheckPredefined(type, predefinedType);
type = TypeOfBiometricData.GetInstance(type);
CheckPredefined(type, predefinedType);
Asn1Object obj = Asn1Object.FromByteArray(type.ToAsn1Object().GetEncoded());
type = TypeOfBiometricData.GetInstance(obj);
CheckPredefined(type, predefinedType);
}
public override void PerformTest()
{
//
// predefined
//
CheckPredefinedType(TypeOfBiometricData.Picture);
CheckPredefinedType(TypeOfBiometricData.HandwrittenSignature);
//
// non-predefined
//
DerObjectIdentifier localType = new DerObjectIdentifier("1.1");
TypeOfBiometricData type = new TypeOfBiometricData(localType);
CheckNonPredefined(type, localType);
type = TypeOfBiometricData.GetInstance(type);
CheckNonPredefined(type, localType);
Asn1Object obj = type.ToAsn1Object();
type = TypeOfBiometricData.GetInstance(obj);
CheckNonPredefined(type, localType);
type = TypeOfBiometricData.GetInstance(null);
if (type != null)
{
Fail("null GetInstance() failed.");
}
try
{
TypeOfBiometricData.GetInstance(new object());
Fail("GetInstance() failed to detect bad object.");
}
catch (ArgumentException)
{
// expected
}
try
{
new TypeOfBiometricData(100);
Fail("constructor failed to detect bad predefined type.");
}
catch (ArgumentException)
{
// expected
}
// Call Equals to avoid unreachable code warning
if (!Equals(TypeOfBiometricData.Picture, 0))
{
Fail("predefined picture should be 0");
}
// Call Equals to avoid unreachable code warning
if (!Equals(TypeOfBiometricData.HandwrittenSignature, 1))
{
Fail("predefined handwritten signature should be 1");
}
}
private void CheckNonPredefined(
TypeOfBiometricData type,
DerObjectIdentifier val)
{
if (type.IsPredefined)
{
Fail("predefined type found when not expected.");
}
if (!type.BiometricDataOid.Equals(val))
{
Fail("data oid does not match.");
}
}
private void CheckPredefined(
TypeOfBiometricData type,
int val)
{
if (!type.IsPredefined)
{
Fail("predefined type expected but not found.");
}
if (type.PredefinedBiometricType != val)
{
Fail("predefined type does not match.");
}
}