1 files changed, 36 insertions, 0 deletions
diff --git a/libraries/spongycastle/pkix/src/main/jdk1.3/org/spongycastle/cms/jcajce/JcaSignerId.java b/libraries/spongycastle/pkix/src/main/jdk1.3/org/spongycastle/cms/jcajce/JcaSignerId.java
new file mode 100644
index 000000000..99650cfb1
--- /dev/null
+++ b/libraries/spongycastle/pkix/src/main/jdk1.3/org/spongycastle/cms/jcajce/JcaSignerId.java
@@ -0,0 +1,36 @@
+package org.spongycastle.cms.jcajce;
+
+import java.math.BigInteger;
+import java.security.cert.X509Certificate;
+
+import org.spongycastle.asn1.x500.X500Name;
+import org.spongycastle.cms.SignerId;
+import org.spongycastle.jce.PrincipalUtil;
+import org.spongycastle.jce.X509Principal;
+
+public class JcaSignerId
+    extends SignerId
+{
+    private static X509Principal getPrincipal(X509Certificate cert)
+    {
+         try
+         {
+             return PrincipalUtil.getIssuerX509Principal(cert);
+         }
+         catch (Exception e)
+         {
+             throw new IllegalArgumentException("unable to extract principle");
+         }
+    }
+
+    /**
+     * Construct a signer identifier based on the issuer, serial number and subject key identifier (if present) of the passed in
+     * certificate.
+     *
+     * @param certificate certificate providing the issue and serial number and subject key identifier.
+     */
+    public JcaSignerId(X509Certificate certificate)
+    {
+        super(X500Name.getInstance(getPrincipal(certificate).getEncoded()), certificate.getSerialNumber(), CMSUtils.getSubjectKeyId(certificate));
+    }
+}