why can't you store it in a SharedPreferences ?
On Aug 26, 7:33 am, Sujay Krishna Suresh <sujay.coold...@gmail.com>
wrote:
> On Wed, Aug 26, 2009 at 7:16 PM, zeeshan <genx...@gmail.com> wrote:
>
> > key never change once its been created.
>
> > as i know SecretKey generates by a funtion as above, how can i set it
> > as constant
> > can you plz provide example?
>
> > On Aug 26, 1:39 pm, Sujay Krishna Suresh <sujay.coold...@gmail.com>
> > wrote:
> > > On Wed, Aug 26, 2009 at 5:41 PM, zeeshan <genx...@gmail.com> wrote:
>
> > > > key doesn't change.
> > > > can i store keyString in preferences to retrieve for decryption
>
> > > yes that'd be better than storin it in a file. But better to jus have a
> > > constant field in ur class that cointains ur key.
>
> class UrClass{
> public static final String KEY_STRING;
> static{
>
>
>
> > > > SecretKey key = KeyGenerator.getInstance("DES").generateKey();
> > > > byte[] keybytes = key.getEncoded();
> > > > KEY_STRING = new String(keybytes);
>
> }
> /*
> * Rest of the class
> */
>
>
>
> }
>
> > > If u r gonna execute these set of statements then wont the key change??
>
> > > > or plz provide any example for the best practice
>
> > > > On Aug 26, 12:28 pm, Sujay Krishna Suresh <sujay.coold...@gmail.com>
> > > > wrote:
> > > > > If it is only used by ur application, jus use a String instance to
> > hold
> > > > the
> > > > > key. y store in a file??
> > > > > ll the key change dynamically???
>
> > > > > On Wed, Aug 26, 2009 at 4:55 PM, zeeshan <genx...@gmail.com> wrote:
>
> > > > > > encryption and decryption is the app's internal functionality. user
> > > > > > has nothing to do with this
> > > > > > i encrypt the file on 1st run and on 2nd run i check if file is
> > there
> > > > > > then decrypt and show.
> > > > > > so only thing i understand is to store the key somewhere in the app
> > so
> > > > > > i can access it for decryption.
> > > > > > just wondering if this help
> > > > > > File keyFile = new File("data/data/package name/key");
>
> > > > > > i followed this link for encryption and decryption
>
> >http://www.java2s.com/Tutorial/Java/0490__Security/UsingCipherInputSt.
> > > > ..
>
> > > > > > On Aug 26, 12:11 pm, Sujay Krishna Suresh <
> > sujay.coold...@gmail.com>
> > > > > > wrote:
> > > > > > > I think its better to ask the user for the secret key rather than
> > > > storin
> > > > > > it
> > > > > > > smwhere.
>
> > > > > > > On Wed, Aug 26, 2009 at 4:30 PM, zeeshan <genx...@gmail.com>
> > wrote:
>
> > > > > > > > Hi Dear,
>
> > > > > > > > i wrote a small application which encrypt some files using a
> > secret
> > > > > > > > key.
> > > > > > > > i need to decrypt files on 2nd run which requires same key
> > again
> > > > > > > > plz advise where should i store the secret key.
>
> > > > > > > --
> > > > > > > Regards,
> > > > > > > Sujay
> > > > > > > Mike Ditka <
> > > >http://www.brainyquote.com/quotes/authors/m/mike_ditka.html>
> > > > > > -
> > > > > > > "If God had wanted man to play soccer, he wouldn't have given us
> > > > arms."
>
> > > > > --
> > > > > Regards,
> > > > > Sujay
> > > > > Pablo Picasso<
> > > >http://www.brainyquote.com/quotes/authors/p/pablo_picasso.html>
> > > > > - "Computers are useless. They can only give you answers."
>
> > > --
> > > Regards,
> > > Sujay
> > > Jonathan Swift<
> >http://www.brainyquote.com/quotes/authors/j/jonathan_swift.html>
> > > - "May you live every day of your life."
>
> --
> Regards,
> Sujay
> Joan Crawford<http://www.brainyquote.com/quotes/authors/j/joan_crawford.html>
> - "I, Joan Crawford, I believe in the dollar. Everything I earn, I
> spend."
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