1 files changed, 28 insertions, 0 deletions
diff --git a/Crypto/src/cms/DigOutputStream.cs b/Crypto/src/cms/DigOutputStream.cs
new file mode 100644
index 000000000..103b45cac
--- /dev/null
+++ b/Crypto/src/cms/DigOutputStream.cs
@@ -0,0 +1,28 @@
+using System;
+
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Utilities.IO;
+
+namespace Org.BouncyCastle.Cms
+{
+	internal class DigOutputStream
+		: BaseOutputStream
+	{
+		private readonly IDigest dig;
+
+		internal DigOutputStream(IDigest dig)
+		{
+			this.dig = dig;
+		}
+
+		public override void WriteByte(byte b)
+		{
+			dig.Update(b);
+		}
+
+		public override void Write(byte[] b, int off, int len)
+		{
+			dig.BlockUpdate(b, off, len);
+		}
+	}
+}