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Diffstat (limited to 'crypto/src/x509/X509Utilities.cs')
-rw-r--r--crypto/src/x509/X509Utilities.cs3
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/src/x509/X509Utilities.cs b/crypto/src/x509/X509Utilities.cs
index 461a545f9..85f24f26a 100644
--- a/crypto/src/x509/X509Utilities.cs
+++ b/crypto/src/x509/X509Utilities.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections;
+using System.Collections.Generic;
 
 using Org.BouncyCastle.Asn1;
 using Org.BouncyCastle.Asn1.CryptoPro;
@@ -21,7 +22,7 @@ namespace Org.BouncyCastle.X509
 	{
         private static readonly IDictionary algorithms = Platform.CreateHashtable();
         private static readonly IDictionary exParams = Platform.CreateHashtable();
-		private static readonly ISet        noParams = new HashSet();
+		private static readonly HashSet<DerObjectIdentifier> noParams = new HashSet<DerObjectIdentifier>();
 
 		static X509Utilities()
 		{