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path: root/crypto/src/asn1/cms/RecipientIdentifier.cs
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Diffstat (limited to 'crypto/src/asn1/cms/RecipientIdentifier.cs')
-rw-r--r--crypto/src/asn1/cms/RecipientIdentifier.cs4
1 files changed, 2 insertions, 2 deletions
diff --git a/crypto/src/asn1/cms/RecipientIdentifier.cs b/crypto/src/asn1/cms/RecipientIdentifier.cs
index de9fd5e75..4fe181dff 100644
--- a/crypto/src/asn1/cms/RecipientIdentifier.cs
+++ b/crypto/src/asn1/cms/RecipientIdentifier.cs
@@ -32,7 +32,7 @@ namespace Org.BouncyCastle.Asn1.Cms
 
 		public RecipientIdentifier(IssuerAndSerialNumber id)
         {
-            m_id = id;
+            m_id = id ?? throw new ArgumentNullException(nameof(id));
         }
 
 		public RecipientIdentifier(Asn1OctetString id)
@@ -42,7 +42,7 @@ namespace Org.BouncyCastle.Asn1.Cms
 
 		public RecipientIdentifier(Asn1Object id)
         {
-            m_id = id;
+            m_id = id ?? throw new ArgumentNullException(nameof(id));
         }
 
         public bool IsTagged => m_id is Asn1TaggedObject;