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path: root/crypto/src/asn1/cms/OriginatorIdentifierOrKey.cs
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Diffstat (limited to 'crypto/src/asn1/cms/OriginatorIdentifierOrKey.cs')
-rw-r--r--crypto/src/asn1/cms/OriginatorIdentifierOrKey.cs2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/src/asn1/cms/OriginatorIdentifierOrKey.cs b/crypto/src/asn1/cms/OriginatorIdentifierOrKey.cs
index 6d127ccc3..f5cc1f2f7 100644
--- a/crypto/src/asn1/cms/OriginatorIdentifierOrKey.cs
+++ b/crypto/src/asn1/cms/OriginatorIdentifierOrKey.cs
@@ -43,7 +43,7 @@ namespace Org.BouncyCastle.Asn1.Cms
 
         public OriginatorIdentifierOrKey(IssuerAndSerialNumber id)
         {
-            m_id = id;
+            m_id = id ?? throw new ArgumentNullException(nameof(id));
         }
 
         public OriginatorIdentifierOrKey(SubjectKeyIdentifier id)