1 files changed, 83 insertions, 0 deletions
diff --git a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/eac/EACCertificateBuilder.java b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/eac/EACCertificateBuilder.java
new file mode 100644
index 000000000..b3ca48e8c
--- /dev/null
+++ b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/eac/EACCertificateBuilder.java
@@ -0,0 +1,83 @@
+package org.spongycastle.eac;
+
+import java.io.OutputStream;
+
+import org.spongycastle.asn1.ASN1Encoding;
+import org.spongycastle.asn1.DERApplicationSpecific;
+import org.spongycastle.asn1.eac.CVCertificate;
+import org.spongycastle.asn1.eac.CertificateBody;
+import org.spongycastle.asn1.eac.CertificateHolderAuthorization;
+import org.spongycastle.asn1.eac.CertificateHolderReference;
+import org.spongycastle.asn1.eac.CertificationAuthorityReference;
+import org.spongycastle.asn1.eac.EACTags;
+import org.spongycastle.asn1.eac.PackedDate;
+import org.spongycastle.asn1.eac.PublicKeyDataObject;
+import org.spongycastle.eac.operator.EACSigner;
+
+public class EACCertificateBuilder
+{
+    private static final byte [] ZeroArray = new byte [] {0};
+
+    private PublicKeyDataObject publicKey;
+    private CertificateHolderAuthorization certificateHolderAuthorization;
+    private PackedDate certificateEffectiveDate;
+    private PackedDate certificateExpirationDate;
+    private CertificateHolderReference certificateHolderReference;
+    private CertificationAuthorityReference certificationAuthorityReference;
+
+    public EACCertificateBuilder(
+        CertificationAuthorityReference certificationAuthorityReference,
+        PublicKeyDataObject publicKey,
+        CertificateHolderReference certificateHolderReference,
+        CertificateHolderAuthorization certificateHolderAuthorization,
+        PackedDate certificateEffectiveDate,
+        PackedDate certificateExpirationDate)
+    {
+        this.certificationAuthorityReference = certificationAuthorityReference;
+        this.publicKey = publicKey;
+        this.certificateHolderReference = certificateHolderReference;
+        this.certificateHolderAuthorization = certificateHolderAuthorization;
+        this.certificateEffectiveDate = certificateEffectiveDate;
+        this.certificateExpirationDate = certificateExpirationDate;
+    }
+
+    private CertificateBody buildBody()
+    {
+        DERApplicationSpecific  certificateProfileIdentifier;
+
+        certificateProfileIdentifier = new DERApplicationSpecific(
+                EACTags.INTERCHANGE_PROFILE, ZeroArray);
+
+        CertificateBody body = new CertificateBody(
+                certificateProfileIdentifier,
+                certificationAuthorityReference,
+                publicKey,
+                certificateHolderReference,
+                certificateHolderAuthorization,
+                certificateEffectiveDate,
+                certificateExpirationDate);
+
+        return body;
+    }
+
+    public EACCertificateHolder build(EACSigner signer)
+        throws EACException
+    {
+        try
+        {
+            CertificateBody body = buildBody();
+
+            OutputStream vOut = signer.getOutputStream();
+
+            vOut.write(body.getEncoded(ASN1Encoding.DER));
+
+            vOut.close();
+
+            return new EACCertificateHolder(new CVCertificate(body, signer.getSignature()));
+        }
+        catch (Exception e)
+        {
+            throw new EACException("unable to process signature: " + e.getMessage(), e);
+        }
+    }
+}