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
