1 files changed, 53 insertions, 0 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/x509/extension/SubjectKeyIdentifierStructure.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/x509/extension/SubjectKeyIdentifierStructure.java
new file mode 100644
index 000000000..bf85ab02f
--- /dev/null
+++ b/libraries/spongycastle/prov/src/main/java/org/spongycastle/x509/extension/SubjectKeyIdentifierStructure.java
@@ -0,0 +1,53 @@
+package org.spongycastle.x509.extension;
+
+import java.io.IOException;
+import java.security.InvalidKeyException;
+import java.security.PublicKey;
+
+import org.spongycastle.asn1.ASN1OctetString;
+import org.spongycastle.asn1.x509.SubjectKeyIdentifier;
+import org.spongycastle.asn1.x509.SubjectPublicKeyInfo;
+
+/**
+ * A high level subject key identifier.
+ * @deprecated use JcaX509ExtensionUtils andSubjectKeyIdentifier.getInstance()
+ */
+public class SubjectKeyIdentifierStructure
+    extends SubjectKeyIdentifier
+{
+    /**
+     * Constructor which will take the byte[] returned from getExtensionValue()
+     * 
+     * @param encodedValue a DER octet encoded string with the extension structure in it.
+     * @throws IOException on parsing errors.
+     */
+    public SubjectKeyIdentifierStructure(
+        byte[]  encodedValue)
+        throws IOException
+    {
+        super((ASN1OctetString)X509ExtensionUtil.fromExtensionValue(encodedValue));
+    }
+    
+    private static ASN1OctetString fromPublicKey(
+        PublicKey pubKey)
+        throws InvalidKeyException
+    {
+        try
+        {
+            SubjectPublicKeyInfo info = SubjectPublicKeyInfo.getInstance(pubKey.getEncoded());
+
+            return (ASN1OctetString)(new SubjectKeyIdentifier(info).toASN1Object());
+        }
+        catch (Exception e)
+        {
+            throw new InvalidKeyException("Exception extracting key details: " + e.toString());
+        }
+    }
+    
+    public SubjectKeyIdentifierStructure(
+        PublicKey pubKey)
+        throws InvalidKeyException
+    {
+        super(fromPublicKey(pubKey));
+    }
+}