1 files changed, 38 insertions, 0 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/DERNull.java b/core/src/main/java/org/bouncycastle/asn1/DERNull.java
new file mode 100644
index 00000000..1eb9f450
--- /dev/null
+++ b/core/src/main/java/org/bouncycastle/asn1/DERNull.java
@@ -0,0 +1,38 @@
+package org.bouncycastle.asn1;
+
+import java.io.IOException;
+
+/**
+ * A NULL object.
+ */
+public class DERNull
+    extends ASN1Null
+{
+    public static final DERNull INSTANCE = new DERNull();
+
+    private static final byte[]  zeroBytes = new byte[0];
+
+    /**
+     * @deprecated use DERNull.INSTANCE
+     */
+    public DERNull()
+    {
+    }
+
+    boolean isConstructed()
+    {
+        return false;
+    }
+
+    int encodedLength()
+    {
+        return 2;
+    }
+
+    void encode(
+        ASN1OutputStream out)
+        throws IOException
+    {
+        out.writeEncoded(BERTags.NULL, zeroBytes);
+    }
+}