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path: root/crypto/src/asn1/pkcs/CrlBag.cs
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Diffstat (limited to 'crypto/src/asn1/pkcs/CrlBag.cs')
-rw-r--r--crypto/src/asn1/pkcs/CrlBag.cs25
1 files changed, 14 insertions, 11 deletions
diff --git a/crypto/src/asn1/pkcs/CrlBag.cs b/crypto/src/asn1/pkcs/CrlBag.cs
index 0198c341c..28cc19fb1 100644
--- a/crypto/src/asn1/pkcs/CrlBag.cs
+++ b/crypto/src/asn1/pkcs/CrlBag.cs
@@ -7,38 +7,41 @@ namespace Org.BouncyCastle.Asn1.Pkcs
     {
         public static CrlBag GetInstance(object obj)
         {
-            if (obj is CrlBag crlBag)
-                return crlBag;
             if (obj == null)
                 return null;
+            if (obj is CrlBag crlBag)
+                return crlBag;
             return new CrlBag(Asn1Sequence.GetInstance(obj));
         }
 
+        public static CrlBag GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
+        {
+            return new CrlBag(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
+        }
+
         private readonly DerObjectIdentifier m_crlID;
         private readonly Asn1Encodable m_crlValue;
 
         private CrlBag(Asn1Sequence seq)
         {
-            if (seq.Count != 2)
-                throw new ArgumentException("Wrong number of elements in sequence", nameof(seq));
+            int count = seq.Count;
+            if (count != 2)
+                throw new ArgumentException("Bad sequence size: " + count, nameof(seq));
 
             m_crlID = DerObjectIdentifier.GetInstance(seq[0]);
-            m_crlValue = Asn1TaggedObject.GetInstance(seq[1]).GetExplicitBaseObject();
+            m_crlValue = Asn1TaggedObject.GetInstance(seq[1], Asn1Tags.ContextSpecific, 0).GetExplicitBaseObject();
         }
 
         public CrlBag(DerObjectIdentifier crlID, Asn1Encodable crlValue)
         {
-            m_crlID = crlID;
-            m_crlValue = crlValue;
+            m_crlID = crlID ?? throw new ArgumentNullException(nameof(crlID));
+            m_crlValue = crlValue ?? throw new ArgumentNullException(nameof(crlValue));
         }
 
         public virtual DerObjectIdentifier CrlID => m_crlID;
 
         public virtual Asn1Encodable CrlValue => m_crlValue;
 
-        public override Asn1Object ToAsn1Object()
-        {
-            return new DerSequence(m_crlID, new DerTaggedObject(0, m_crlValue));
-        }
+        public override Asn1Object ToAsn1Object() => new DerSequence(m_crlID, new DerTaggedObject(0, m_crlValue));
     }
 }