1 files changed, 60 insertions, 0 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/jce/ECNamedCurveTable.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jce/ECNamedCurveTable.java
new file mode 100644
index 000000000..1a1f1b8a5
--- /dev/null
+++ b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jce/ECNamedCurveTable.java
@@ -0,0 +1,60 @@
+package org.spongycastle.jce;
+
+import java.util.Enumeration;
+
+import org.spongycastle.asn1.ASN1ObjectIdentifier;
+import org.spongycastle.asn1.x9.X9ECParameters;
+import org.spongycastle.jce.spec.ECNamedCurveParameterSpec;
+
+/**
+ * a table of locally supported named curves.
+ */
+public class ECNamedCurveTable
+{
+    /**
+     * return a parameter spec representing the passed in named
+     * curve. The routine returns null if the curve is not present.
+     * 
+     * @param name the name of the curve requested
+     * @return a parameter spec for the curve, null if it is not available.
+     */
+    public static ECNamedCurveParameterSpec getParameterSpec(
+        String  name)
+    {
+        X9ECParameters  ecP = org.spongycastle.asn1.x9.ECNamedCurveTable.getByName(name);
+        if (ecP == null)
+        {
+            try
+            {
+                ecP = org.spongycastle.asn1.x9.ECNamedCurveTable.getByOID(new ASN1ObjectIdentifier(name));
+            }
+            catch (IllegalArgumentException e)
+            {
+                // ignore - not an oid
+            }
+        }
+        
+        if (ecP == null)
+        {
+            return null;
+        }
+
+        return new ECNamedCurveParameterSpec(
+                                        name,
+                                        ecP.getCurve(),
+                                        ecP.getG(),
+                                        ecP.getN(),
+                                        ecP.getH(),
+                                        ecP.getSeed());
+    }
+
+    /**
+     * return an enumeration of the names of the available curves.
+     *
+     * @return an enumeration of the names of the available curves.
+     */
+    public static Enumeration getNames()
+    {
+        return org.spongycastle.asn1.x9.ECNamedCurveTable.getNames();
+    }
+}