diff --git a/DigitalData.Core.Security/RSAFactory.cs b/DigitalData.Core.Security/RSAFactory.cs
index 6d6dec9..f7a51a5 100644
--- a/DigitalData.Core.Security/RSAFactory.cs
+++ b/DigitalData.Core.Security/RSAFactory.cs
@@ -17,8 +17,6 @@ namespace DigitalData.Core.Security
 
         public static readonly IEnumerable<string> KeyFileTags = new string[] { DefaultEncryptedPrivateKeyFileTag, DefaultPrivateKeyFileTag, DefaultPublicKeyFileTag };
 
-        public static readonly string PEMFileExtension = ".pem";
-
         private static readonly Lazy<IEnumerable<string>> LazyLowerFileTags = new(() => KeyFileTags.Select(tag => tag.ToLower()));
 
         public static readonly string DefaultRSAKeyNameSeparator = "-_-";
@@ -59,9 +57,7 @@ namespace DigitalData.Core.Security
             else
                 sb.Append(DefaultPublicKeyFileTag).Append(separator).Append(passwordVersion);
 
-            var rsaKey = sb.Append(PEMFileExtension).ToString();
-
-            return rsaKey;
+            return sb.ToString();
         }
 
         public int KeySizeInBits { get; init; } = 2048;