Java security:illegal key size or default parameters?

From: Http://stackoverflow.com/questions/6481627/java-security-illegal-key-size-or-default-parameters

I had asked a question about this earlier, but it didn ' t get answered right and led nowhere. So I ' ve clarified few details on the problem and I would really like to hear your ideas on how could I fix this or what SH Ould I try.

I ' ve Java 1.6.0.12 installed on my Linux server and the code bellow runs just perfectly.

String key = "av45k1pfb024xa3bl359vsb4esortvks74sksr5oy4s5serondry84jsrryuhsr5ys49y5seri5shrdliheuirdygliurguiy5ru";try {    Cipher c = Cipher.getInstance("ARCFOUR");    SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "ARCFOUR");    c.init(Cipher.DECRYPT_MODE, secretKeySpec);    return new String(c.doFinal(Hex.decodeHex(data.toCharArray())), "UTF-8");} catch (InvalidKeyException e) {    throw new CryptoException(e);}

Today i installed Java 1.6.0.26 on my server user and if I try to run my application, I get the following excep tion. My guess would is that it had something to does with the Java installation configuration because it works in the first one, But doesn ' t work in the later version.

Caused by: java.security.InvalidKeyException: Illegal key size or default parameters    at javax.crypto.Cipher.a(DashoA13*..) ~[na:1.6]    at javax.crypto.Cipher.a(DashoA13*..) ~[na:1.6]    at javax.crypto.Cipher.a(DashoA13*..) ~[na:1.6]    at javax.crypto.Cipher.init(DashoA13*..) ~[na:1.6]    at javax.crypto.Cipher.init(DashoA13*..) ~[na:1.6]    at my.package.Something.decode(RC4Decoder.java:25) ~[my.package.jar:na]    ... 5 common frames omitted

Line is:c.init(Cipher.DECRYPT_MODE, secretKeySpec);

Most likely you don't have the unlimited strength file installed now.

Need to download the This file:

Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 6

Java Cryptography Extension (JCE) Unlimited Strength jurisdiction Policy Files 7 Download

Java Cryptography Extension (JCE) Unlimited Strength jurisdiction Policy Files 8 Download

Install the file in ${java.home}/jre/lib/security/ .

Java security:illegal key size or default parameters?