1 files changed, 53 insertions, 0 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/jce/provider/PrincipalUtils.java b/bcprov/src/main/java/org/bouncycastle/jce/provider/PrincipalUtils.java
new file mode 100644
index 0000000..9059079
--- /dev/null
+++ b/bcprov/src/main/java/org/bouncycastle/jce/provider/PrincipalUtils.java
@@ -0,0 +1,53 @@
+package org.bouncycastle.jce.provider;
+
+import java.security.cert.TrustAnchor;
+import java.security.cert.X509CRL;
+import java.security.cert.X509CRLEntry;
+import java.security.cert.X509Certificate;
+
+import javax.security.auth.x500.X500Principal;
+
+import org.bouncycastle.asn1.x500.X500Name;
+import org.bouncycastle.x509.X509AttributeCertificate;
+
+class PrincipalUtils
+{
+    static X500Name getSubjectPrincipal(X509Certificate cert)
+    {
+        return X500Name.getInstance(cert.getSubjectX500Principal().getEncoded());
+    }
+
+    static X500Name getIssuerPrincipal(X509CRL crl)
+    {
+        return X500Name.getInstance(crl.getIssuerX500Principal().getEncoded());
+    }
+
+    static X500Name getIssuerPrincipal(X509Certificate cert)
+    {
+        return X500Name.getInstance(cert.getIssuerX500Principal().getEncoded());
+    }
+
+    static X500Name getCA(TrustAnchor trustAnchor)
+    {
+        return X500Name.getInstance(trustAnchor.getCA().getEncoded());
+    }
+
+    /**
+     * Returns the issuer of an attribute certificate or certificate.
+     *
+     * @param cert The attribute certificate or certificate.
+     * @return The issuer as <code>X500Principal</code>.
+     */
+    static X500Name getEncodedIssuerPrincipal(
+        Object cert)
+    {
+        if (cert instanceof X509Certificate)
+        {
+            return getIssuerPrincipal((X509Certificate)cert);
+        }
+        else
+        {
+            return X500Name.getInstance(((X500Principal)((X509AttributeCertificate)cert).getIssuer().getPrincipals()[0]).getEncoded());
+        }
+    }
+}