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POAES gets different results in iOS (Obj-C) and Android (Java)
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copied!<p>I'm a complete newbie to this kind of encryption things but I have a Java app and an iOS, and I want them to both be able to ecrypt a text to a same result. I use AES. I found these codes, with a little modification of course, but they return different result</p> <p>iOS Code:</p> <pre><code>- (NSData *)AESEncryptionWithKey:(NSString *)key { unsigned char keyPtr[kCCKeySizeAES128] = { 'T', 'h', 'e', 'B', 'e', 's', 't', 'S', 'e', 'c', 'r','e', 't', 'K', 'e', 'y' }; size_t bufferSize = 16; void *buffer = malloc(bufferSize); size_t numBytesEncrypted = 0; const char iv2[16] = { 65, 1, 2, 23, 4, 5, 6, 7, 32, 21, 10, 11, 12, 13, 84, 45 }; CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt, kCCAlgorithmAES128, kCCOptionECBMode | kCCOptionPKCS7Padding,, keyPtr, kCCKeySizeAES128, iv2, @"kayvan", 6, dataInLength, buffer, bufferSize, &numBytesEncrypted); if (cryptStatus == kCCSuccess) { return [NSData dataWithBytesNoCopy:buffer length:numBytesEncrypted]; } free(buffer); return nil; } </code></pre> <p>and the Java code is:</p> <pre><code>public static void main(String[] args) throws Exception { String password = "kayvan"; String key = "TheBestSecretKey"; String newPasswordEnc = AESencrp.newEncrypt(password, key); System.out.println("Encrypted Text : " + newPasswordEnc); } </code></pre> <p>and in another java class (<code>AESencrp.class</code>) I have: </p> <pre><code>public static final byte[] IV = { 65, 1, 2, 23, 4, 5, 6, 7, 32, 21, 10, 11, 12, 13, 84, 45 }; public static String newEncrypt(String text, String key) throws Exception { Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); byte[] keyBytes= new byte[16]; byte[] b= key.getBytes("UTF-8"); int len = 16; System.arraycopy(b, 0, keyBytes, 0, len); SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES"); IvParameterSpec ivSpec = new IvParameterSpec(IV); System.out.println(ivSpec); cipher.init(Cipher.ENCRYPT_MODE,keySpec,ivSpec); byte[] results = cipher.doFinal(text.getBytes("UTF-8")); String result = DatatypeConverter.printBase64Binary(results); return result; } </code></pre> <p>The string I wanted to encrypt is <code>kayvan</code> with the key <code>TheBestSecretKey</code>. and the results after Base64 encoding are:</p> <p>for iOS: <code>9wXUiV+ChoLHmF6KraVtDQ==</code></p> <p>for Java: <code>/s5YyKb3tDlUXt7pqA5OFA==</code></p> <p>What should I do now?</p>

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