Hi <BR><BR>I am doing Encryption/Decryption DPAPI (User key) from ASP.NET.IIS side we are using the IUSR account.<BR><BR>While doing the encrypt we are passing the any parameters DPAPI.KeyType.UserKey,encrypingsring only.<BR><BR>I assume that while doing encryption/decrypion it will use the IUSR account profile to generate the key.So where this key will be stored in OS? Can i back up this key?<BR>If sysem crash or this key loss(assume database another machine and safe) how to do decryption?<BR><BR><BR>Pl advice me.Sorry if i asked any silly ques.