1 files changed, 82 insertions, 0 deletions

diff --git a/core/src/main/java/org/spongycastle/asn1/ASN1Primitive.java b/core/src/main/java/org/spongycastle/asn1/ASN1Primitive.java
new file mode 100644
index 00000000..dd626887
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/asn1/ASN1Primitive.java
@@ -0,0 +1,82 @@
+package org.spongycastle.asn1;
+
+import java.io.IOException;
+
+/**
+ * Base class for ASN.1 primitive objects. These are the actual objects used to generate byte encodings.
+ */
+public abstract class ASN1Primitive
+    extends ASN1Object
+{
+    ASN1Primitive()
+    {
+
+    }
+
+    /**
+     * Create a base ASN.1 object from a byte stream.
+     *
+     * @param data the byte stream to parse.
+     * @return the base ASN.1 object represented by the byte stream.
+     * @exception IOException if there is a problem parsing the data.
+     */
+    public static ASN1Primitive fromByteArray(byte[] data)
+        throws IOException
+    {
+        ASN1InputStream aIn = new ASN1InputStream(data);
+
+        try
+        {
+            return aIn.readObject();
+        }
+        catch (ClassCastException e)
+        {
+            throw new IOException("cannot recognise object in stream");
+        }
+    }
+
+    public final boolean equals(Object o)
+    {
+        if (this == o)
+        {
+            return true;
+        }
+
+        return (o instanceof ASN1Encodable) && asn1Equals(((ASN1Encodable)o).toASN1Primitive());
+    }
+
+    public ASN1Primitive toASN1Primitive()
+    {
+        return this;
+    }
+
+    /**
+     * Return the current object as one which encodes using Distinguished Encoding Rules.
+     *
+     * @return a DER version of this.
+     */
+    ASN1Primitive toDERObject()
+    {
+        return this;
+    }
+
+    /**
+     * Return the current object as one which encodes using Definite Length encoding.
+     *
+     * @return a DL version of this.
+     */
+    ASN1Primitive toDLObject()
+    {
+        return this;
+    }
+
+    public abstract int hashCode();
+
+    abstract boolean isConstructed();
+
+    abstract int encodedLength() throws IOException;
+
+    abstract void encode(ASN1OutputStream out) throws IOException;
+
+    abstract boolean asn1Equals(ASN1Primitive o);
+}
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