diff --git a/DigitalData.Core.Security/DIExtensions.cs b/DigitalData.Core.Security/DIExtensions.cs
index cd8571f..6d1c318 100644
--- a/DigitalData.Core.Security/DIExtensions.cs
+++ b/DigitalData.Core.Security/DIExtensions.cs
@@ -60,5 +60,9 @@ namespace DigitalData.Core.Security
 
             return services.AddSingleton(sp => Options.Create(descriptor));
         }
+
+        public static IServiceCollection AddJwtSignatureHandler<TPrincipal>(this IServiceCollection services, Func<TPrincipal, IDictionary<string, object>>? claimsMapper = null, Func<TPrincipal, ClaimsIdentity>? subjectMapper = null) => services
+            .AddClaimDescriptor(claimsMapper: claimsMapper, subjectMapper: subjectMapper)
+            .AddSingleton<IJwtSignatureHandler<TPrincipal>, JwtSignatureHandler<TPrincipal>>();
     }
 }
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