1 files changed, 102 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/ContentInfo.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/ContentInfo.java
new file mode 100644
index 000000000..a325f0fdc
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/ContentInfo.java
@@ -0,0 +1,102 @@
+package org.spongycastle.asn1.pkcs;
+
+import java.util.Enumeration;
+
+import org.spongycastle.asn1.ASN1Encodable;
+import org.spongycastle.asn1.ASN1EncodableVector;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1ObjectIdentifier;
+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.DLSequence;
+
+public class ContentInfo
+    extends ASN1Object
+    implements PKCSObjectIdentifiers
+{
+    private ASN1ObjectIdentifier contentType;
+    private ASN1Encodable content;
+    private boolean       isBer = true;
+
+    public static ContentInfo getInstance(
+        Object  obj)
+    {
+        if (obj instanceof ContentInfo)
+        {
+            return (ContentInfo)obj;
+        }
+
+        if (obj != null)
+        {
+            return new ContentInfo(ASN1Sequence.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    private ContentInfo(
+        ASN1Sequence  seq)
+    {
+        Enumeration   e = seq.getObjects();
+
+        contentType = (ASN1ObjectIdentifier)e.nextElement();
+
+        if (e.hasMoreElements())
+        {
+            content = ((ASN1TaggedObject)e.nextElement()).getObject();
+        }
+
+        isBer = seq instanceof BERSequence;
+    }
+
+    public ContentInfo(
+        ASN1ObjectIdentifier contentType,
+        ASN1Encodable content)
+    {
+        this.contentType = contentType;
+        this.content = content;
+    }
+
+    public ASN1ObjectIdentifier getContentType()
+    {
+        return contentType;
+    }
+
+    public ASN1Encodable getContent()
+    {
+        return content;
+    }
+
+    /**
+     * Produce an object suitable for an ASN1OutputStream.
+     * <pre>
+     * ContentInfo ::= SEQUENCE {
+     *          contentType ContentType,
+     *          content
+     *          [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL }
+     * </pre>
+     */
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector v = new ASN1EncodableVector();
+
+        v.add(contentType);
+
+        if (content != null)
+        {
+            v.add(new BERTaggedObject(true, 0, content));
+        }
+
+        if (isBer)
+        {
+            return new BERSequence(v);
+        }
+        else
+        {
+            return new DLSequence(v);
+        }
+    }
+}