I2b2PasswordCryptor.java
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	import java.security.MessageDigest;
	import java.security.NoSuchAlgorithmException;

	public final class I2b2PasswordCryptor {
	public static String toHex(byte[] digest) {
	final StringBuffer buf = new StringBuffer();

	for (int i = 0; i < digest.length; i++) {
	buf.append(Integer.toHexString((int) digest[i] & 0x00FF));
	}

	return buf.toString();
	}

	public static String getHashedPassword(String pass) throws Exception {
	try {
	final MessageDigest md5 = MessageDigest.getInstance("MD5");

	md5.update(pass.getBytes());

	return toHex(md5.digest());
	} catch (NoSuchAlgorithmException e) {
	System.err.println("No such algorithm MD5!");

	System.exit(-1);
	}

	return null;
	}

	public static void main(String[] args) throws Exception {
	if (args.length != 1) {
	System.err.println("Usage: java I2b2PasswordCryptor <plaintext password>");

	System.exit(-1);
	}

	System.out.println(getHashedPassword(args[0]));
	}
	}