diff --git a/DigitalData.Core.Abstractions/Security/IJwtSignatureService.cs b/DigitalData.Core.Abstractions/Security/IJwtSignatureService.cs
new file mode 100644
index 0000000..79bfabc
--- /dev/null
+++ b/DigitalData.Core.Abstractions/Security/IJwtSignatureService.cs
@@ -0,0 +1,19 @@
+using Microsoft.IdentityModel.Tokens;
+
+namespace DigitalData.Core.Abstractions.Security
+{
+    public interface IJwtSignatureService<TPrincipal>
+    {
+        SecurityToken CreateToken(SecurityTokenDescriptor tokenDescriptor);
+
+        SecurityToken CreateToken(TPrincipal subject, TokenDescription description);
+
+        SecurityToken CreateToken(TPrincipal subject, string issuer, string audience);
+
+        string CreateAndWriteToken(SecurityTokenDescriptor descriptor);
+
+        string CreateAndWriteToken(TPrincipal subject, TokenDescription description);
+
+        string CreateAndWriteToken(TPrincipal subject, string issuer, string audience);
+    }
+}
\ No newline at end of file
diff --git a/DigitalData.Core.Security/JwtSignatureService.cs b/DigitalData.Core.Security/JwtSignatureService.cs
index 58e4c6c..b47f281 100644
--- a/DigitalData.Core.Security/JwtSignatureService.cs
+++ b/DigitalData.Core.Security/JwtSignatureService.cs
@@ -7,7 +7,7 @@ using System.IdentityModel.Tokens.Jwt;
 
 namespace DigitalData.Core.Security
 {
-    public class JwtSignatureService<TPrincipal> : JwtSecurityTokenHandler
+    public class JwtSignatureService<TPrincipal> : JwtSecurityTokenHandler, IJwtSignatureService<TPrincipal>
     {
         private readonly ClaimDescriptor<TPrincipal> _claimDescriptor;
 
@@ -45,6 +45,8 @@ namespace DigitalData.Core.Security
             return CreateToken(subject: subject, description: description);
         }
 
+        public string CreateAndWriteToken(SecurityTokenDescriptor descriptor) => WriteToken(CreateToken(descriptor));
+
         public string CreateAndWriteToken(TPrincipal subject, TokenDescription description) => WriteToken(CreateToken(subject: subject, description: description));
 
         public string CreateAndWriteToken(TPrincipal subject, string issuer, string audience) => WriteToken(CreateToken(subject: subject, issuer: issuer, audience: audience));