1 files changed, 25 insertions, 0 deletions
diff --git a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/operator/jcajce/OperatorUtils.java b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/operator/jcajce/OperatorUtils.java
new file mode 100644
index 000000000..81cb40634
--- /dev/null
+++ b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/operator/jcajce/OperatorUtils.java
@@ -0,0 +1,25 @@
+package org.spongycastle.operator.jcajce;
+
+import java.security.Key;
+
+import javax.crypto.spec.SecretKeySpec;
+
+import org.spongycastle.operator.GenericKey;
+
+class OperatorUtils
+{
+    static Key getJceKey(GenericKey key)
+    {
+        if (key.getRepresentation() instanceof Key)
+        {
+            return (Key)key.getRepresentation();
+        }
+
+        if (key.getRepresentation() instanceof byte[])
+        {
+            return new SecretKeySpec((byte[])key.getRepresentation(), "ENC");
+        }
+
+        throw new IllegalArgumentException("unknown generic key type");
+    }
+}
+\ No newline at end of file