1 files changed, 115 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/asn1/pkcs/EncryptedData.java b/core/src/main/java/org/spongycastle/asn1/pkcs/EncryptedData.java
new file mode 100644
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+++ b/core/src/main/java/org/spongycastle/asn1/pkcs/EncryptedData.java
@@ -0,0 +1,115 @@
+package org.spongycastle.asn1.pkcs;
+
+import org.spongycastle.asn1.ASN1Encodable;
+import org.spongycastle.asn1.ASN1EncodableVector;
+import org.spongycastle.asn1.ASN1Integer;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1ObjectIdentifier;
+import org.spongycastle.asn1.ASN1OctetString;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1Sequence;
+import org.spongycastle.asn1.ASN1TaggedObject;
+import org.spongycastle.asn1.BERSequence;
+import org.spongycastle.asn1.BERTaggedObject;
+import org.spongycastle.asn1.x509.AlgorithmIdentifier;
+
+/**
+ * The EncryptedData object.
+ * <pre>
+ *      EncryptedData ::= SEQUENCE {
+ *           version Version,
+ *           encryptedContentInfo EncryptedContentInfo
+ *      }
+ *
+ *
+ *      EncryptedContentInfo ::= SEQUENCE {
+ *          contentType ContentType,
+ *          contentEncryptionAlgorithm  ContentEncryptionAlgorithmIdentifier,
+ *          encryptedContent [0] IMPLICIT EncryptedContent OPTIONAL
+ *    }
+ *
+ *    EncryptedContent ::= OCTET STRING
+ * </pre>
+ */
+public class EncryptedData
+    extends ASN1Object
+{
+    ASN1Sequence                data;
+    ASN1ObjectIdentifier bagId;
+    ASN1Primitive bagValue;
+
+    public static EncryptedData getInstance(
+         Object  obj)
+    {
+         if (obj instanceof EncryptedData)
+         {
+             return (EncryptedData)obj;
+         }
+
+         if (obj != null)
+         {
+             return new EncryptedData(ASN1Sequence.getInstance(obj));
+         }
+
+         return null;
+    }
+     
+    private EncryptedData(
+        ASN1Sequence seq)
+    {
+        int version = ((ASN1Integer)seq.getObjectAt(0)).getValue().intValue();
+
+        if (version != 0)
+        {
+            throw new IllegalArgumentException("sequence not version 0");
+        }
+
+        this.data = ASN1Sequence.getInstance(seq.getObjectAt(1));
+    }
+
+    public EncryptedData(
+        ASN1ObjectIdentifier contentType,
+        AlgorithmIdentifier     encryptionAlgorithm,
+        ASN1Encodable content)
+    {
+        ASN1EncodableVector v = new ASN1EncodableVector();
+
+        v.add(contentType);
+        v.add(encryptionAlgorithm.toASN1Primitive());
+        v.add(new BERTaggedObject(false, 0, content));
+
+        data = new BERSequence(v);
+    }
+        
+    public ASN1ObjectIdentifier getContentType()
+    {
+        return ASN1ObjectIdentifier.getInstance(data.getObjectAt(0));
+    }
+
+    public AlgorithmIdentifier getEncryptionAlgorithm()
+    {
+        return AlgorithmIdentifier.getInstance(data.getObjectAt(1));
+    }
+
+    public ASN1OctetString getContent()
+    {
+        if (data.size() == 3)
+        {
+            ASN1TaggedObject o = ASN1TaggedObject.getInstance(data.getObjectAt(2));
+
+            return ASN1OctetString.getInstance(o, false);
+        }
+
+        return null;
+    }
+
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector v = new ASN1EncodableVector();
+
+        v.add(new ASN1Integer(0));
+        v.add(data);
+
+        return new BERSequence(v);
+    }
+}