1 files changed, 61 insertions, 0 deletions
diff --git a/moaSig/moa-asic/src/main/java/at/gv/egiz/asic/impl/verifier/BaseVerifier.java b/moaSig/moa-asic/src/main/java/at/gv/egiz/asic/impl/verifier/BaseVerifier.java
new file mode 100644
index 0000000..a0bc516
--- /dev/null
+++ b/moaSig/moa-asic/src/main/java/at/gv/egiz/asic/impl/verifier/BaseVerifier.java
@@ -0,0 +1,61 @@
+package at.gv.egiz.asic.impl.verifier;
+
+import at.gv.egiz.asic.impl.Verifier;
+import at.gv.egovernment.moa.spss.api.cmsverify.VerifyCMSSignatureResponse;
+import org.apache.commons.codec.binary.Hex;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Created by Andreas Fitzek on 6/17/16.
+ */
+public abstract class BaseVerifier implements Verifier {
+
+    protected static Map<String, String> hashTranslator = new HashMap<String, String>();
+
+    static {
+        hashTranslator.put("http://www.w3.org/2000/09/xmldsig#sha1", "SHA-1");
+        hashTranslator.put("http://www.w3.org/2001/04/xmldsig-more#sha224", "SHA-224");
+        hashTranslator.put("http://www.w3.org/2001/04/xmlenc#sha256", "SHA-256");
+        hashTranslator.put("http://www.w3.org/2001/04/xmldsig-more#sha384", "SHA-384");
+        hashTranslator.put("http://www.w3.org/2001/04/xmlenc#sha512", "SHA-512");
+        hashTranslator.put("http://www.w3.org/2001/04/xmlenc#ripemd160", "RIPEMD-160");
+    }
+
+    private static final Logger logger = LoggerFactory.getLogger(BaseVerifier.class);
+
+    protected boolean compareHash(byte[] reference, byte[] calculated, String refName) {
+        String referenceHex = Hex.encodeHexString(reference);
+        String calculatedHex = Hex.encodeHexString(calculated);
+        if(Arrays.equals(reference, calculated)) {
+            logger.info("Digest from manifest do match for {}", refName);
+            return true;
+        } else {
+            logger.info("Digest from manifest do not match for {}", refName);
+            logger.info("Digest from manifest   for {} : {}", refName, referenceHex);
+            logger.info("Digest from calculated for {} : {}", refName, calculatedHex);
+            return false;
+        }
+    }
+
+    protected MessageDigest getMessageDigestFromURI(String uri) {
+        try {
+
+            String algo = hashTranslator.get(uri);
+
+            if(algo == null) {
+                algo = uri;
+            }
+
+            return MessageDigest.getInstance(algo);
+        } catch (NoSuchAlgorithmException e) {
+            return null;
+        }
+    }
+}