1 files changed, 35 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/asn1/eac/PublicKeyDataObject.java b/core/src/main/java/org/spongycastle/asn1/eac/PublicKeyDataObject.java
new file mode 100644
index 00000000..88c6c56c
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/asn1/eac/PublicKeyDataObject.java
@@ -0,0 +1,35 @@
+package org.spongycastle.asn1.eac;
+
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1ObjectIdentifier;
+import org.spongycastle.asn1.ASN1Sequence;
+
+public abstract class PublicKeyDataObject
+    extends ASN1Object
+{
+    public static PublicKeyDataObject getInstance(Object obj)
+    {
+        if (obj instanceof PublicKeyDataObject)
+        {
+            return (PublicKeyDataObject)obj;
+        }
+        if (obj != null)
+        {
+            ASN1Sequence seq = ASN1Sequence.getInstance(obj);
+            ASN1ObjectIdentifier usage = ASN1ObjectIdentifier.getInstance(seq.getObjectAt(0));
+
+            if (usage.on(EACObjectIdentifiers.id_TA_ECDSA))
+            {
+                return new ECDSAPublicKey(seq);
+            }
+            else
+            {
+                return new RSAPublicKey(seq);
+            }
+        }
+
+        return null;
+    }
+
+    public abstract ASN1ObjectIdentifier getUsage();
+}