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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.X509.Qualified
{
/**
* The BiometricData object.
* <pre>
* BiometricData ::= SEQUENCE {
* typeOfBiometricData TypeOfBiometricData,
* hashAlgorithm AlgorithmIdentifier,
* biometricDataHash OCTET STRING,
* sourceDataUri IA5String OPTIONAL }
* </pre>
*/
public class BiometricData
: Asn1Encodable
{
public static BiometricData GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is BiometricData biometricData)
return biometricData;
return new BiometricData(Asn1Sequence.GetInstance(obj));
}
public static BiometricData GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit) =>
new BiometricData(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
public static BiometricData GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit) =>
new BiometricData(Asn1Sequence.GetTagged(taggedObject, declaredExplicit));
private readonly TypeOfBiometricData m_typeOfBiometricData;
private readonly AlgorithmIdentifier m_hashAlgorithm;
private readonly Asn1OctetString m_biometricDataHash;
private readonly DerIA5String m_sourceDataUri;
private BiometricData(Asn1Sequence seq)
{
int count = seq.Count, pos = 0;
if (count < 3 || count > 4)
throw new ArgumentException("Bad sequence size: " + count, nameof(seq));
m_typeOfBiometricData = TypeOfBiometricData.GetInstance(seq[pos++]);
m_hashAlgorithm = AlgorithmIdentifier.GetInstance(seq[pos++]);
m_biometricDataHash = Asn1OctetString.GetInstance(seq[pos++]);
m_sourceDataUri = Asn1Utilities.ReadOptional(seq, ref pos, DerIA5String.GetOptional);
if (pos != count)
throw new ArgumentException("Unexpected elements in sequence", nameof(seq));
}
public BiometricData(TypeOfBiometricData typeOfBiometricData, AlgorithmIdentifier hashAlgorithm,
Asn1OctetString biometricDataHash)
: this(typeOfBiometricData, hashAlgorithm, biometricDataHash, null)
{
}
public BiometricData(TypeOfBiometricData typeOfBiometricData, AlgorithmIdentifier hashAlgorithm,
Asn1OctetString biometricDataHash, DerIA5String sourceDataUri)
{
m_typeOfBiometricData = typeOfBiometricData ?? throw new ArgumentNullException(nameof(typeOfBiometricData));
m_hashAlgorithm = hashAlgorithm ?? throw new ArgumentNullException(nameof(hashAlgorithm));
m_biometricDataHash = biometricDataHash ?? throw new ArgumentNullException(nameof(biometricDataHash));
m_sourceDataUri = sourceDataUri;
}
public TypeOfBiometricData TypeOfBiometricData => m_typeOfBiometricData;
public AlgorithmIdentifier HashAlgorithm => m_hashAlgorithm;
public Asn1OctetString BiometricDataHash => m_biometricDataHash;
public DerIA5String SourceDataUri => m_sourceDataUri;
public override Asn1Object ToAsn1Object()
{
return m_sourceDataUri == null
? new DerSequence(m_typeOfBiometricData, m_hashAlgorithm, m_biometricDataHash)
: new DerSequence(m_typeOfBiometricData, m_hashAlgorithm, m_biometricDataHash, m_sourceDataUri);
}
}
}
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