Standard DES?

I have been asked to encrypt data using standard DES. I am having a hard time finding details on how to do this. I was given the following byte arrays:

private byte[] KEY_64 = new byte[] {12, 26, 92, 218, 58, 8, 156, 52};
private byte[] IV_64 = new byte[] {45, 167, 234, 59, 34, 76, 103, 9};

All the tutorials I have found start off by generating a key. I have both keys already

The http://faq.javaranch.com/java/SecurityFaq points to several resources related to JCE (the Java API for encryption). One of those shows DES in detail. Since you already have the key, you can use the SecretKeySpec class to construct a SecretKey object from that, and leave those parts from the example.

These days, I'd rather use TripleDES or AES than DES, though.

Nice key. Most folks have odd values in the bytes, which DES ignores the lowest bit.

These days DES is useful only for training. Its obsolete. AES is the approved replacement. TripleDES is used, but its much slower than AES.

218, 156, etc. are not java bytes, so you're two lines won't even compile.