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using System;
using System.Collections;
using Org.BouncyCastle.Utilities.Collections;
namespace Org.BouncyCastle.Asn1.Esf
{
/// <remarks>
/// <code>
/// SignaturePolicyId ::= SEQUENCE {
/// sigPolicyIdentifier SigPolicyId,
/// sigPolicyHash SigPolicyHash,
/// sigPolicyQualifiers SEQUENCE SIZE (1..MAX) OF SigPolicyQualifierInfo OPTIONAL
/// }
///
/// SigPolicyId ::= OBJECT IDENTIFIER
///
/// SigPolicyHash ::= OtherHashAlgAndValue
/// </code>
/// </remarks>
public class SignaturePolicyId
: Asn1Encodable
{
private readonly DerObjectIdentifier sigPolicyIdentifier;
private readonly OtherHashAlgAndValue sigPolicyHash;
private readonly Asn1Sequence sigPolicyQualifiers;
public static SignaturePolicyId GetInstance(
object obj)
{
if (obj == null || obj is SignaturePolicyId)
return (SignaturePolicyId) obj;
if (obj is Asn1Sequence)
return new SignaturePolicyId((Asn1Sequence) obj);
throw new ArgumentException(
"Unknown object in 'SignaturePolicyId' factory: "
+ obj.GetType().Name,
"obj");
}
private SignaturePolicyId(
Asn1Sequence seq)
{
if (seq == null)
throw new ArgumentNullException("seq");
if (seq.Count < 2 || seq.Count > 3)
throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
this.sigPolicyIdentifier = (DerObjectIdentifier) seq[0].ToAsn1Object();
this.sigPolicyHash = OtherHashAlgAndValue.GetInstance(seq[1].ToAsn1Object());
if (seq.Count > 2)
{
this.sigPolicyQualifiers = (Asn1Sequence) seq[2].ToAsn1Object();
}
}
public SignaturePolicyId(
DerObjectIdentifier sigPolicyIdentifier,
OtherHashAlgAndValue sigPolicyHash)
: this(sigPolicyIdentifier, sigPolicyHash, null)
{
}
public SignaturePolicyId(
DerObjectIdentifier sigPolicyIdentifier,
OtherHashAlgAndValue sigPolicyHash,
params SigPolicyQualifierInfo[] sigPolicyQualifiers)
{
if (sigPolicyIdentifier == null)
throw new ArgumentNullException("sigPolicyIdentifier");
if (sigPolicyHash == null)
throw new ArgumentNullException("sigPolicyHash");
this.sigPolicyIdentifier = sigPolicyIdentifier;
this.sigPolicyHash = sigPolicyHash;
if (sigPolicyQualifiers != null)
{
this.sigPolicyQualifiers = new DerSequence(sigPolicyQualifiers);
}
}
public SignaturePolicyId(
DerObjectIdentifier sigPolicyIdentifier,
OtherHashAlgAndValue sigPolicyHash,
IEnumerable sigPolicyQualifiers)
{
if (sigPolicyIdentifier == null)
throw new ArgumentNullException("sigPolicyIdentifier");
if (sigPolicyHash == null)
throw new ArgumentNullException("sigPolicyHash");
this.sigPolicyIdentifier = sigPolicyIdentifier;
this.sigPolicyHash = sigPolicyHash;
if (sigPolicyQualifiers != null)
{
if (!CollectionUtilities.CheckElementsAreOfType(sigPolicyQualifiers, typeof(SigPolicyQualifierInfo)))
throw new ArgumentException("Must contain only 'SigPolicyQualifierInfo' objects", "sigPolicyQualifiers");
this.sigPolicyQualifiers = new DerSequence(
Asn1EncodableVector.FromEnumerable(sigPolicyQualifiers));
}
}
public DerObjectIdentifier SigPolicyIdentifier
{
get { return sigPolicyIdentifier; }
}
public OtherHashAlgAndValue SigPolicyHash
{
get { return sigPolicyHash; }
}
public SigPolicyQualifierInfo[] GetSigPolicyQualifiers()
{
if (sigPolicyQualifiers == null)
return null;
SigPolicyQualifierInfo[] infos = new SigPolicyQualifierInfo[sigPolicyQualifiers.Count];
for (int i = 0; i < sigPolicyQualifiers.Count; ++i)
{
infos[i] = SigPolicyQualifierInfo.GetInstance(sigPolicyQualifiers[i]);
}
return infos;
}
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(
sigPolicyIdentifier, sigPolicyHash.ToAsn1Object());
if (sigPolicyQualifiers != null)
{
v.Add(sigPolicyQualifiers.ToAsn1Object());
}
return new DerSequence(v);
}
}
}
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