1 files changed, 9 insertions, 1 deletions
diff --git a/crypto/src/cms/CMSCompressedDataStreamGenerator.cs b/crypto/src/cms/CMSCompressedDataStreamGenerator.cs
index 1594500cd..3669c0b3a 100644
--- a/crypto/src/cms/CMSCompressedDataStreamGenerator.cs
+++ b/crypto/src/cms/CMSCompressedDataStreamGenerator.cs
@@ -4,6 +4,7 @@ using System.IO;
 using Org.BouncyCastle.Asn1;
 using Org.BouncyCastle.Asn1.Cms;
 using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto.IO;
 using Org.BouncyCastle.Utilities;
 using Org.BouncyCastle.Utilities.IO;
 
@@ -118,7 +119,14 @@ namespace Org.BouncyCastle.Cms
 				_out.Write(buffer, offset, count);
 			}
 
-			public override void WriteByte(byte value)
+#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+            public override void Write(ReadOnlySpan<byte> buffer)
+			{
+                _out.Write(buffer);
+            }
+#endif
+
+            public override void WriteByte(byte value)
 			{
 				_out.WriteByte(value);
 			}