1 files changed, 4 insertions, 9 deletions
diff --git a/crypto/src/crypto/BufferedAeadCipher.cs b/crypto/src/crypto/BufferedAeadCipher.cs
index fb3408e12..22f65c628 100644
--- a/crypto/src/crypto/BufferedAeadCipher.cs
+++ b/crypto/src/crypto/BufferedAeadCipher.cs
@@ -16,10 +16,7 @@ namespace Org.BouncyCastle.Crypto
 
         public BufferedAeadCipher(IAeadCipher cipher)
         {
-            if (cipher == null)
-                throw new ArgumentNullException("cipher");
-
-            this.cipher = cipher;
+            this.cipher = cipher ?? throw new ArgumentNullException(nameof(cipher));
         }
 
         public override string AlgorithmName
@@ -36,13 +33,11 @@ namespace Org.BouncyCastle.Crypto
         * @exception ArgumentException if the parameters argument is
         * inappropriate.
         */
-        public override void Init(
-            bool forEncryption,
-            ICipherParameters parameters)
+        public override void Init(bool forEncryption, ICipherParameters parameters)
         {
-            if (parameters is ParametersWithRandom)
+            if (parameters is ParametersWithRandom withRandom)
             {
-                parameters = ((ParametersWithRandom)parameters).Parameters;
+                parameters = withRandom.Parameters;
             }
 
             cipher.Init(forEncryption, parameters);