help on encryption key

[eyeofsoul]

hello..i have an issue about encryption key.i have generate a key using secretkey, can it be save to a file?!..does the process are just the same like writing a string to a file?!..and then retrieving the key,does it are the same like reading the file?!..

[Nepomuk]

hello..i have an issue about encryption key.i have generate a key using secretkey, can it be save to a file?!..does the process are just the same like writing a string to a file?!..and then retrieving the key,does it are the same like reading the file?!..

Just writing it to a file like writing a String won't work - you'd get the current name of the secretkey-object, but that's it. However, Secretkey has a method called "getEncoded ()" which returns a byte-array. You can save a byte-array to a file (again, don't just print it like a String - you'll get the objects name. Try the Arrays class.) and then read it again from file. You'll have to convert it again, but that's solvable.

Greetings,
Nepomuk

[hsn]

i think it is the same way as writing a strnig to a text file

hsn

[drsmooth]

also, i have had success using objectOutputStr eam to save a Key object to a file. You can use ObjectInputStre am to lead it up again and cast it back to a Key object.