From b6dc3080f4cc86e26a76dec7c0100dfb04d56664 Mon Sep 17 00:00:00 2001
From: CGantert345 <57003061+CGantert345@users.noreply.github.com>
Date: Tue, 21 May 2024 15:25:16 +0200
Subject: tests changed to the functions including a dedicated provider fixed
 the validation function in case the algorithmOid is missing

---
 src/main/java/org/uic/barcode/Decoder.java                 | 2 ++
 src/main/java/org/uic/barcode/staticFrame/StaticFrame.java | 5 +++++
 2 files changed, 7 insertions(+)

(limited to 'src/main')

diff --git a/src/main/java/org/uic/barcode/Decoder.java b/src/main/java/org/uic/barcode/Decoder.java
index 0878d8d..d9f20ff 100644
--- a/src/main/java/org/uic/barcode/Decoder.java
+++ b/src/main/java/org/uic/barcode/Decoder.java
@@ -23,6 +23,7 @@ import org.uic.barcode.staticFrame.ticketLayoutBarcode.TicketLayout;
 import org.uic.barcode.ticket.EncodingFormatException;
 import org.uic.barcode.ticket.UicRailTicketCoder;
 import org.uic.barcode.ticket.api.spec.IUicRailTicket;
+import org.uic.barcode.utils.SecurityUtils;
 
 
 /**
@@ -165,6 +166,7 @@ public class Decoder {
 		
 		} else if (staticFrame != null) {
 			
+			// guess the signature algorithm based on the signature size
 			if (staticFrame.verifyByAlgorithmOid(key,signingAlg, provider)) {
 				return Constants.LEVEL1_VALIDATION_OK;
 			} else {
diff --git a/src/main/java/org/uic/barcode/staticFrame/StaticFrame.java b/src/main/java/org/uic/barcode/staticFrame/StaticFrame.java
index bf97acb..a8d7651 100644
--- a/src/main/java/org/uic/barcode/staticFrame/StaticFrame.java
+++ b/src/main/java/org/uic/barcode/staticFrame/StaticFrame.java
@@ -706,6 +706,11 @@ public class StaticFrame {
 	 * @throws IOException 
 	 */
 	public boolean verifyByAlgorithmOid(PublicKey key, String signingAlg, Provider prov) throws InvalidKeyException, NoSuchAlgorithmException, SignatureException, IllegalArgumentException, UnsupportedOperationException, IOException, EncodingFormatException {
+
+		if ((signingAlg == null || signingAlg.length() < 1) && this.getSignature() != null) {			
+			signingAlg = SecurityUtils.getDsaAlgorithm(this.getSignature());
+		}
+		
 		//find the algorithm name for the signature OID
 		String algo = null;
         Service service = prov.getService("Signature",signingAlg);
-- 
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