From 0b843142389211104609ef188beeef0f293c5cd0 Mon Sep 17 00:00:00 2001
From: oleksandrsarapulovgl
 <82441124+oleksandrsarapulovgl@users.noreply.github.com>
Date: Fri, 21 May 2021 13:26:04 +0300
Subject: [PATCH] Added signature validation error checker (#13)

---
 .../verifier/app/decoder/model/VerificationResult.kt   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/decoder/src/main/java/dgca/verifier/app/decoder/model/VerificationResult.kt b/decoder/src/main/java/dgca/verifier/app/decoder/model/VerificationResult.kt
index a8328ac..798603c 100644
--- a/decoder/src/main/java/dgca/verifier/app/decoder/model/VerificationResult.kt
+++ b/decoder/src/main/java/dgca/verifier/app/decoder/model/VerificationResult.kt
@@ -37,6 +37,16 @@ data class VerificationResult(
         return base45Decoded && zlibDecoded && coseVerified && cborDecoded && isSchemaValid && isTestValid
     }
 
+    /**
+     * Checks if all the checks but signature validation passed.
+     * Ultimately value {@code true} returned by the method
+     * would mean that signature validation has been checked. And it failed.
+     */
+    fun isSignatureInvalid(): Boolean {
+        val isTestValid = testVerification?.isDetected ?: true
+        return (base45Decoded && zlibDecoded && cborDecoded && isSchemaValid && isTestValid) && !coseVerified
+    }
+
     override fun toString(): String {
         return "VerificationResult: \n" +
                 "base45Decoded: $base45Decoded \n" +