| package org.bouncycastle.asn1.x509; |
| |
| import java.util.Enumeration; |
| import java.util.Hashtable; |
| import java.util.Vector; |
| |
| import org.bouncycastle.asn1.ASN1Encodable; |
| import org.bouncycastle.asn1.ASN1EncodableVector; |
| import org.bouncycastle.asn1.ASN1Object; |
| import org.bouncycastle.asn1.ASN1ObjectIdentifier; |
| import org.bouncycastle.asn1.ASN1Primitive; |
| import org.bouncycastle.asn1.ASN1Sequence; |
| import org.bouncycastle.asn1.ASN1TaggedObject; |
| import org.bouncycastle.asn1.DERSequence; |
| |
| /** |
| * The extendedKeyUsage object. |
| * <pre> |
| * extendedKeyUsage ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId |
| * </pre> |
| */ |
| public class ExtendedKeyUsage |
| extends ASN1Object |
| { |
| Hashtable usageTable = new Hashtable(); |
| ASN1Sequence seq; |
| |
| public static ExtendedKeyUsage getInstance( |
| ASN1TaggedObject obj, |
| boolean explicit) |
| { |
| return getInstance(ASN1Sequence.getInstance(obj, explicit)); |
| } |
| |
| public static ExtendedKeyUsage getInstance( |
| Object obj) |
| { |
| if (obj instanceof ExtendedKeyUsage) |
| { |
| return (ExtendedKeyUsage)obj; |
| } |
| else if (obj != null) |
| { |
| return new ExtendedKeyUsage(ASN1Sequence.getInstance(obj)); |
| } |
| |
| return null; |
| } |
| |
| public static ExtendedKeyUsage fromExtensions(Extensions extensions) |
| { |
| return ExtendedKeyUsage.getInstance(extensions.getExtensionParsedValue(Extension.extendedKeyUsage)); |
| } |
| |
| public ExtendedKeyUsage( |
| KeyPurposeId usage) |
| { |
| this.seq = new DERSequence(usage); |
| |
| this.usageTable.put(usage, usage); |
| } |
| |
| private ExtendedKeyUsage( |
| ASN1Sequence seq) |
| { |
| this.seq = seq; |
| |
| Enumeration e = seq.getObjects(); |
| |
| while (e.hasMoreElements()) |
| { |
| ASN1Encodable o = (ASN1Encodable)e.nextElement(); |
| if (!(o.toASN1Primitive() instanceof ASN1ObjectIdentifier)) |
| { |
| throw new IllegalArgumentException("Only ASN1ObjectIdentifiers allowed in ExtendedKeyUsage."); |
| } |
| this.usageTable.put(o, o); |
| } |
| } |
| |
| public ExtendedKeyUsage( |
| KeyPurposeId[] usages) |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| for (int i = 0; i != usages.length; i++) |
| { |
| v.add(usages[i]); |
| this.usageTable.put(usages[i], usages[i]); |
| } |
| |
| this.seq = new DERSequence(v); |
| } |
| |
| /** |
| * @deprecated use KeyPurposeId[] constructor. |
| */ |
| public ExtendedKeyUsage( |
| Vector usages) |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| Enumeration e = usages.elements(); |
| |
| while (e.hasMoreElements()) |
| { |
| ASN1Primitive o = (ASN1Primitive)e.nextElement(); |
| |
| v.add(o); |
| this.usageTable.put(o, o); |
| } |
| |
| this.seq = new DERSequence(v); |
| } |
| |
| public boolean hasKeyPurposeId( |
| KeyPurposeId keyPurposeId) |
| { |
| return (usageTable.get(keyPurposeId) != null); |
| } |
| |
| /** |
| * Returns all extended key usages. |
| * The returned vector contains DERObjectIdentifiers. |
| * @return An array with all key purposes. |
| */ |
| public KeyPurposeId[] getUsages() |
| { |
| KeyPurposeId[] temp = new KeyPurposeId[seq.size()]; |
| |
| int i = 0; |
| for (Enumeration it = seq.getObjects(); it.hasMoreElements();) |
| { |
| temp[i++] = KeyPurposeId.getInstance(it.nextElement()); |
| } |
| return temp; |
| } |
| |
| public int size() |
| { |
| return usageTable.size(); |
| } |
| |
| public ASN1Primitive toASN1Primitive() |
| { |
| return seq; |
| } |
| } |