Decrypt Coldfusion UUEncode

ColdFusionUuEncryption.java

import java.io.ByteArrayOutputStream;
import java.io.OutputStream;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import javax.mail.internet.MimeUtility;

import org.apache.commons.io.IOUtils;

public class ColdFusionUuEncryption {
	private static final String UU_DUMMY = "dummy";
	private static final String UU_FOOTER = "\n \nend\r\n";
	private static final String UU_HEADER = "begin 644 "+UU_DUMMY+"\r\n";

	private String encryptionKey;

	public void setEncryptionKey(String encryptionKey) {
		this.encryptionKey = encryptionKey;
	}

	private byte[] decodeKey() throws Exception {
		return decode(encryptionKey, "base64");
	}

	public static byte[] doCrypt(byte[] kBytes, byte[] actual, int mode) throws Exception {
		SecretKeySpec skeySpec = new SecretKeySpec(kBytes, "AES");
		Cipher c = Cipher.getInstance("AES");
		c.init(mode, skeySpec);
		return c.doFinal(actual);
	}

	public String encryptCF(String s) throws Exception {
		return uuencodeCfStyle(doCrypt(decodeKey(), s.getBytes(), Cipher.ENCRYPT_MODE));
	}

	public String decryptCF(String s) throws Exception {
		return new String(new String(doCrypt(decodeKey(), decode(UU_HEADER + s + UU_FOOTER, "uuencode"), Cipher.DECRYPT_MODE)));
	}

	private static byte[] decode(String str, String encoding) throws Exception {
		return IOUtils.toByteArray(MimeUtility.decode(IOUtils.toInputStream(str), encoding));
	}

	public static String uuencodeCfStyle(byte[] bytes) throws Exception {
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		OutputStream b64 = MimeUtility.encode(baos, "uuencode", UU_DUMMY);
		b64.write(bytes);
		b64.close();

		String s = new String(baos.toByteArray());
		return s.substring(UU_HEADER.length(), s.length() - UU_FOOTER.length());
	}
}