I have tried with simple string with out giving UTF-8 format. byte[] bts = encrypted.getBytes(); byte[] decrypted = cipher.doFinal(bts);
Then also it will give same error. Thanks, Rashmi On Apr 12, 6:06 pm, Marcin Orlowski <[email protected]> wrote: > Blind shot -> String != byte[] for UTF-8 and I suspect this false assumption > nukes your code. > > Regards, > Marcin Orlowski > > *Tray Agenda <http://bit.ly/trayagenda>* - keep you daily schedule handy... > WebnetMobile on *Facebook <http://webnetmobile.com/fb/>* and > *Twitter<http://webnetmobile.com/twitter/> > > * > On 12 April 2011 14:52, rashmi <[email protected]> wrote: > > > Hi, > > I am using Asymmetric Cipher RSA algorithm for encryption and > > decryption. I am generating private and public keys and using them for > > encryption and decryption respectively. Following is the code snippet. > > > KeyPair keypair = > > KeyPairGenerator.getInstance("RSA").generateKeyPair(); > > > private Cipher cipher = = Cipher.getInstance("RSA"); > > > public String encrypt(String plaintext) throws Exception{ > > this.cipher.init(Cipher.ENCRYPT_MODE, > > this.keypair.getPrivate()); > > byte[] bytes = plaintext.getBytes("UTF-8"); > > > byte[] encrypted = cipher.doFinal(bytes); > > > return new String(encrypted); > > } > > > public String decrypt(String encrypted) throws Exception{ > > this.cipher.init(Cipher.DECRYPT_MODE, > > this.keypair.getPublic()); > > byte[] bts = encrypted.getBytes("UTF-8"); > > > byte[] decrypted = cipher.doFinal(bts); > > > return new String(decrypted,"UTF-8"); > > } > > > Encryption is working fine. But while decryption it is throwing the > > error "java.lang.ArrayIndexOutOfBoundsException: too much data for RSA > > block". Please let me know how to resolve this problem. Please suggest > > me if any other asymmetric algorithms to work on large data. > > > Thank you, > > Rashmi > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
