1 files changed, 85 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/cms/Attributes.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/cms/Attributes.java
new file mode 100644
index 000000000..55ac61e92
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/cms/Attributes.java
@@ -0,0 +1,85 @@
+package org.spongycastle.asn1.cms;
+
+import org.spongycastle.asn1.ASN1EncodableVector;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1Set;
+import org.spongycastle.asn1.DLSet;
+
+/**
+ * <a href="http://tools.ietf.org/html/rfc5652">RFC 5652</a> defines
+ * 5 "SET OF Attribute" entities with 5 different names.
+ * This is common implementation for them all:
+ * <pre>
+ *   SignedAttributes      ::= SET SIZE (1..MAX) OF Attribute
+ *   UnsignedAttributes    ::= SET SIZE (1..MAX) OF Attribute
+ *   UnprotectedAttributes ::= SET SIZE (1..MAX) OF Attribute
+ *   AuthAttributes        ::= SET SIZE (1..MAX) OF Attribute
+ *   UnauthAttributes      ::= SET SIZE (1..MAX) OF Attribute
+ *
+ * Attributes ::=
+ *   SET SIZE(1..MAX) OF Attribute
+ * </pre>
+ */
+public class Attributes
+    extends ASN1Object
+{
+    private ASN1Set attributes;
+
+    private Attributes(ASN1Set set)
+    {
+        attributes = set;
+    }
+
+    public Attributes(ASN1EncodableVector v)
+    {
+        attributes = new DLSet(v);
+    }
+
+    /**
+     * Return an Attribute set object from the given object.
+     * <p>
+     * Accepted inputs:
+     * <ul>
+     * <li> null &rarr; null
+     * <li> {@link Attributes} object
+     * <li> {@link org.spongycastle.asn1.ASN1Set#getInstance(java.lang.Object) ASN1Set} input formats with Attributes structure inside
+     * </ul>
+     *
+     * @param obj the object we want converted.
+     * @exception IllegalArgumentException if the object cannot be converted.
+     */
+    public static Attributes getInstance(Object obj)
+    {
+        if (obj instanceof Attributes)
+        {
+            return (Attributes)obj;
+        }
+        else if (obj != null)
+        {
+            return new Attributes(ASN1Set.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    public Attribute[] getAttributes()
+    {
+        Attribute[] rv = new Attribute[attributes.size()];
+
+        for (int i = 0; i != rv.length; i++)
+        {
+            rv[i] = Attribute.getInstance(attributes.getObjectAt(i));
+        }
+
+        return rv;
+    }
+
+    /** 
+     * Produce an object suitable for an ASN1OutputStream.
+     */
+    public ASN1Primitive toASN1Primitive()
+    {
+        return attributes;
+    }
+}