aes

I want to use AES 256bit encryption with Bouncy Castle and I'm wondering if the " Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files " are still required despite BC because I'm receiving a java.security.InvalidKeyException: Illegal key size exception for the following code: public class AES256 { public static void main(String[] args) throws Exception { Security.addProvider(new BouncyCastleProvider()); final KeyGenerator keyGen = KeyGenerator.getInstance("AES"); keyGen.init(256); // doesn't work for 192, too final byte[] encoded = keyGen.generateKey().getEncoded();

I have an issue with my java code. I'm trying to encrypt a file. However, when I run my java code I get "java.security.InvalidKeyException: Invalid AES key length: 162 bytes". Here is the code: byte[] rawFile; File f = new File("./src/wonkybox.stl"); FileInputStream fileReader = new FileInputStream(f); rawFile = new byte[(int)f.length()]; fileReader.read(rawFile); /***** Encrypt the file (CAN DO THIS ONCE!) ***********/ //Generate the public/private keys KeyPairGenerator keyGen = KeyPairGenerator.getInstance("AES"); SecureRandom random = SecureRandom.getInstance("SHA1PRNG","SUN"); keyGen

I am developing an application for iPhone on Snow Leopard with Xcode 3.1 that receives from a restful web service an encrypted text in hexadecimal format with the algorithm AES 128-bit (CBC). The algorithm uses an initialization vector + secret key. How do I decrypt this text? Thanks to everyone for the tips that I will succeed in giving. EDIT: I get response from REST Server in hex AND crypted format,I try with this code but i receive always bad param error. Can you help me to find the error? Is it possible that i firstly convert the string response into binary format? NSString *response =

CLI $ echo -n "TEST1" | openssl enc -aes256 -k FUUU -nosalt -a bYbkQJcDFZt3y3UQEMbEeg== iOS NSString *leSYT = @"bYbkQJcDFZt3y3UQEMbEeg=="; NSData *data = [NSData dataFromBase64String:leSYT]; NSLog(@"%@",[data AES256DecryptWithKey:@"FUUU"]); iOS doesn't output anything since it failed. What am I missing? NSData additions: http://pastie.org/426530 // NSData+Base64 by Matt Gallagher The -k option in OpenSSL's enc utility derives an AES key and IV from your passphrase "FUUU". You can use the -p option to have OpenSSL print the AES256 key and IV that it derived: $ echo -n "TEST1" | openssl enc

I have a trouble with lockbox3 and PHP mcrypt. I can't pass IV to PHP. Delphi code : var Codec: TCodec; CL: TCryptographicLibrary; PlainStream: TStringStream; CipherStream: TMemoryStream; begin PlainStream := TStringStream.Create(Edit1.Text); CipherStream := TMemoryStream.Create; CL := TCryptographicLibrary.Create(nil); Codec := TCodec.Create(nil); Codec.CryptoLibrary := CL; Codec.ChainModeId := uTPLb_Constants.CBC_ProgId; Codec.StreamCipherId := uTPLb_Constants.BlockCipher_ProgId; Codec.BlockCipherId := Format(uTPLb_Constants.AES_ProgId, [256]); Codec.Password := Edit3.Text; Codec

Encrypting in PHP with mcrypt <?php $string = 'Secret Message'; $key = 'd4b494e4502a62edd695a903a94c2701'; $iv = '02f30dffbb0d084755f438f7d8be4a7d'; $encrypted = base64_encode( mcrypt_encrypt( MCRYPT_RIJNDAEL_256, $key, $string, MCRYPT_MODE_CBC, $iv ) ); //$encrypted results in 'nYoFAiyDARVSI09lH/IPdim5TvE51izVjk6sc2AK9Rg=' ?> Decrypting in Javascript with CryptoJS <script> var encrypted = 'nYoFAiyDARVSI09lH/IPdim5TvE51izVjk6sc2AK9Rg='; var key = CryptoJS.enc.Hex.parse('d4b494e4502a62edd695a903a94c2701'); var iv = CryptoJS.enc.Hex.parse('02f30dffbb0d084755f438f7d8be4a7d'); var decrypted =

This is my code for AES. Under Gingerbread I get following error after encrypting the data on 2.2 then trying to decrypt on 2.3: Caused by: javax.crypto.BadPaddingException: pad block corrupted at org.bouncycastle.jce.provider.JCEBlockCipher.engineDoFinal(JCEBlockCipher.java:715) at javax.crypto.Cipher.doFinal(Cipher.java:1090) at com.citc.wallet.util.security.SimpleCrypto.decrypt(SimpleCrypto.java:63) ... 21 more I have found some posts saying that SecureRandom is producing different results under different systems: BouncyCastle AES error when upgrading to 1.45 How do I avoid this problem on

I've been using .NET for cryptographic purposes a bit. Up to now, I used 3DES (Oid 1.2.840.113549.3.7) in combination with rsaEncryption (Oid 1.2.840.113549.1.1.1, RSAES-PKCS1-v1_5). While the first one has now to be replaced by AES (Oid 2.16.840.1.101.3.4.1.42), I still have to use rsaEncryption / RSAES-PKCS1-v1_5 , not RSAES-OAEP . If I just pass an additional argument to the EnvelopedCMS constructor that I'm calling, I can switch from 3DES to AES: ContentInfo plainContent = new ContentInfo(new Oid("1.2.840.113549.1.7.1"), data); EnvelopedCms encryptedMessage = new EnvelopedCms(plainContent)