Add Comment Property to Key

Author: darinkes

src/Renci.SshNet/PrivateKeyFile.cs

@@ -524,8 +524,7 @@ private Key ParseOpenSshV1Key(byte[] keyFileData, string passPhrase)
                     throw new SshException("OpenSSH key type '" + keyType + "' is not supported.");
             }
 
-            //comment, we don't need this but we could log it, not sure if necessary
-            var comment = privateKeyReader.ReadString(Encoding.UTF8);
+            parsedKey.Comment = privateKeyReader.ReadString(Encoding.UTF8);
 
             //The list of privatekey/comment pairs is padded with the bytes 1, 2, 3, ...
             //until the total length is a multiple of the cipher block size.

src/Renci.SshNet/Security/Cryptography/Key.cs

@@ -36,6 +36,11 @@ public abstract class Key
         /// </value>
         public abstract int KeyLength { get; }
 
+        /// <summary>
+        /// Gets the Key Comment
+        /// </summary>
+        public string Comment { get; set; }
+
         /// <summary>
         /// Initializes a new instance of the <see cref="Key"/> class.
         /// </summary>