diff --git a/backend/src/main/java/com/crypto/Seal.java b/backend/src/main/java/com/crypto/Seal.java
index 1d9d128..de1057a 100644
--- a/backend/src/main/java/com/crypto/Seal.java
+++ b/backend/src/main/java/com/crypto/Seal.java
@@ -34,7 +34,7 @@ public class Seal {
             Richiesta req = ctx.bodyAsClass(Richiesta.class); 
             RSA.RSAkeys keys = RSA.defkeys(req.keysize / 2);
             String ciphertext = RSA.encrypt(req.text,keys.e(), keys.n());
-            ctx.result("{\"ciphertext\":"+ciphertext+",\"keys\":{\"d\":" + keys.d().toString() + ",\"n\":"  + keys.n().toString() +  "}}");
+            ctx.result("{\"ciphertext\":\""+ciphertext+"\",\"keys\":{\"d\":\"" + keys.d().toString() + "\",\"n\":\""  + keys.n().toString() +  "\"}}");
         });
 
         // Decifratura con RSA