cipher

Android - How to decrypt an XML file?

I am trying to to download and decrypt an encrypted XML file. I have implemented the download part and have tested with an unencrypted file and it works fine. However I now need to be able to download an XML file that has been encrypted using AES and the key "XXXX" So I am only concerned with decryption as the encryption on the XML fi...

Decrypting with Cipher and AES yields 208 decrypted bytes followed by trash...

I got an annoying problem here I have no clue about how to solve... A system writes encrypted data to files, some are serialized objects, others text (XML) files. The base class that does the decryption when needed initializes a Cipher with AES encryption, prepares a key (read from a file) and has to ways to access data: A way to get a...

Java AES Decrypting problem

I have been tasked with decrypting a file in Java that has been encrypted using the following criteria: AES encryption algorithm with 128-bit key, ECB mode and PKCS7 padding. The encrypted file format is: - first byte is hex 0x31 – specifying encryption method used (1 for AES) - followed by the encrypted bytes of the input file I...

RSA_PKCS1_OAEP_PADDING with JCE

What should be the Parameter that we need to specify with Cipher if the encryption in RSA is set to RSA_PKCS1_OAEP_PADDING? ...

encrypt PBEWithMD5AndDES in j2me

i'm triing to get this code to work on j2me (it is working a java program) but not yet in j2me public static String generate(String plaintext, String passphase) throws Exception { try { PBEKeySpec pbeKeySpec = new PBEKeySpec(passphase.toCharArray()); PBEParameterSpec pbeParamSpec; SecretKe...