1 files changed, 57 insertions, 0 deletions
diff --git a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cert/selector/jcajce/JcaX509CertSelectorConverter.java b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cert/selector/jcajce/JcaX509CertSelectorConverter.java
new file mode 100644
index 000000000..6dbcef43f
--- /dev/null
+++ b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cert/selector/jcajce/JcaX509CertSelectorConverter.java
@@ -0,0 +1,57 @@
+package org.spongycastle.cert.selector.jcajce;
+
+import java.io.IOException;
+import java.math.BigInteger;
+import java.security.cert.X509CertSelector;
+
+import org.spongycastle.asn1.DEROctetString;
+import org.spongycastle.asn1.x500.X500Name;
+import org.spongycastle.cert.selector.X509CertificateHolderSelector;
+
+public class JcaX509CertSelectorConverter
+{
+    public JcaX509CertSelectorConverter()
+    {
+    }
+
+    protected X509CertSelector doConversion(X500Name issuer, BigInteger serialNumber, byte[] subjectKeyIdentifier)
+    {
+        X509CertSelector selector = new X509CertSelector();
+
+        if (issuer != null)
+        {
+            try
+            {
+                selector.setIssuer(issuer.getEncoded());
+            }
+            catch (IOException e)
+            {
+                throw new IllegalArgumentException("unable to convert issuer: " + e.getMessage());
+            }
+        }
+
+        if (serialNumber != null)
+        {
+            selector.setSerialNumber(serialNumber);
+        }
+
+        if (subjectKeyIdentifier != null)
+        {
+            try
+            {
+                selector.setSubjectKeyIdentifier(new DEROctetString(subjectKeyIdentifier).getEncoded());
+            }
+            catch (IOException e)
+            {
+                throw new IllegalArgumentException("unable to convert issuer: " + e.getMessage());
+            }
+        }
+
+        return selector;
+    }
+
+    public X509CertSelector getCertSelector(X509CertificateHolderSelector holderSelector)
+    {
+        return doConversion(holderSelector.getIssuer(), holderSelector.getSerialNumber(), holderSelector.getSubjectKeyIdentifier());
+    }
+}