diff --git a/certificate/migrations/0002_auto_20230221_1613.py b/certificate/migrations/0002_auto_20230221_1613.py
new file mode 100644
index 0000000..b7d829c
--- /dev/null
+++ b/certificate/migrations/0002_auto_20230221_1613.py
@@ -0,0 +1,23 @@
+# Generated by Django 3.0.3 on 2023-02-21 10:43
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('certificate', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='log',
+            name='full_key',
+            field=models.CharField(max_length=40, null=True, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='log',
+            name='key',
+            field=models.CharField(max_length=25, unique=True),
+        ),
+    ]
diff --git a/certificate/models.py b/certificate/models.py
index d64562e..001f50c 100644
--- a/certificate/models.py
+++ b/certificate/models.py
@@ -16,4 +16,5 @@ class Certificate(models.Model):
 
 class Log(models.Model):
     key = models.CharField(max_length=25)
+    full_key = models.CharField(max_length=40, unique=True, null=True)
     test_attendance = models.ForeignKey(CSCTestAtttendance, on_delete=models.CASCADE)
diff --git a/csc/vle_views.py b/csc/vle_views.py
index f205a38..acbee7e 100644
--- a/csc/vle_views.py
+++ b/csc/vle_views.py
@@ -911,7 +911,7 @@ def download_certificate(request, test_attendance_id):
     filename = 'certficate.pdf'
     certificate = generate(**details)
     if not certificate[1]:
-        add_log(details['certificate_pass'], test_attendance_id)
+        add_log(details['certificate_pass'], details['certificate_full_key'], test_attendance_id)
         return certificate[0]
     else:
         messages.error(request,"Problem in downloading!")
@@ -928,7 +928,7 @@ def get_details(test_attendance):
     except:
       invig = v
 
-
+    verifiable_cert_key = get_pass(test_attendance.id, t.id)
 
     # invig = t.invigilator.invigilator if t.invigilator.exists() else t.vle
     print(invig.user.get_full_name(),'%%%%%%%%%%%%%%%%%%%%%%%%%%')
@@ -940,7 +940,8 @@ def get_details(test_attendance):
         'organiser':v.user.get_full_name(),
         'invigilator':invig.user.get_full_name(),
         'score': '{0}'.format(round(test_attendance.mdlgrade, 2)),
-        'certificate_pass': get_pass(test_attendance.id, t.id),
+        'certificate_pass': verifiable_cert_key[0:10],
+        'certificate_full_key': verifiable_cert_key,
     }
 
     return details
@@ -948,10 +949,11 @@ def get_details(test_attendance):
 def has_log_entry(key):
     return Log.objects.filter(key=key).exists()
 
-def add_log(key, ta):
+def add_log(key, full_key, ta):
     if not has_log_entry(key):
        log = Log()
        log.key = key
+       log.full_key = full_key
        log.test_attendance_id = ta
        log.save()
 
@@ -975,7 +977,7 @@ def get_verification_details(key):
 
 def get_pass(ta_id, t_id):
     serial_key = (hashlib.sha1(bytes('{0}{1}'.format(ta_id, t_id), 'utf-8'))).hexdigest()
-    return serial_key[0:10]
+    return serial_key
 
 
 def training_enroll(request):