I have a similar situation, where my application stores some file on SDCARD and dont want anyone else to be able to see the contents or use the file.
Encryption is one solution. However I was thinking if there is any way to restrict file permission on SDCARD. Since the file is created by my application, which has a unique UserId, is there any way to set permissions like chmod on file ? Cheers, Kacee On Apr 11, 12:17 pm, Xun Sun <xun.sun...@gmail.com> wrote: > Hi, > > On Mon, Apr 11, 2011 at 2:47 PM, Hitendrasinh Gohil > > <hitendra.virtuei...@gmail.com> wrote: > > hi, > > > I am downloading file from server and write this file to sd card.now > > i want to encrypt this file so that only my application can access > > this file. > > > i) if i can encrypt the file path only that can be access on > > decrypting it? > > Are you looking into encrypting individual files? org.bouncycastle.* > have the crypto functions that you can use to encrypt a file. > > You might also want to check this policy: > http://developer.android.com/reference/android/app/admin/DeviceAdminI... > > > > > which is the best encryption algorithem i can use for? > > There are symmetric ones and asymmetric ones. You are likely more > interested in symmetric encryption, where the keys used for encryption > and decryption are the same. DES and ASE are the most popular ones. > > > > > thankx > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to android-developers@googlegroups.com > > To unsubscribe from this group, send email to > > android-developers+unsubscr...@googlegroups.com > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en > > -- > Thanks & regards > Xun Sun -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
