MD5 from String?

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String senc = "String to encode";
java.security.MessageDigest digest =
java.security.MessageDigest.getInstance("MD5");

What to do next to get the String with MD5?
EDIT: Is this possible at all? (using built in md5-support)
I can't found working examples:(
Please, help.
EDIT 2:

byte msgDigest[] = algorithm.digest();//==> error occurs

required: byte[], int, int.
found: no arguments.
Ok, I wrote:

byte msgDigest[] = algorithm.digest(sencBytes, 0, sencBytes.length);

and i got an error again:
required: byte[], int, int.
found: int
I don't know why found int if first argument is byte[] :(

Project properties:
Device Configuration: CLDC-1.1
Device Profile: MIDP-2.1

Posted 8-Nov-10 20:01pm

halabella

Updated 10-Nov-10 2:17am

v7

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GPUToaster™ · Answer 1 · 2010-11-10T00:54:00

It shows you haven't opened the Java Documentation.
Anyways the following is the way to implement MD5 Message Digest. Hope it helps.

import java.security.MessageDigest;
....etc.

String senc = "String to encode";
byte[] sencBytes = senc.getBytes();
try{
	MessageDigest algorithm = MessageDigest.getInstance("MD5");
	algorithm.reset();
	algorithm.update(sencBytes);
	byte msgDigest[] = algorithm.digest();
            
	StringBuffer md5String = new StringBuffer();
	for (int i=0;i<msgDigest.length;i++) {
		md5String.append(Integer.toHexString(0xFF & msgDigest[i]));
	}
	String foo = msgDigest.toString();
	System.out.println("MD5 of "+senc+" is "+md5String.toString());
}catch(NoSuchAlgorithmException nsae){
            JOptionPane.showMessageDialog(null, "Warning!!", "No Such Alogorithm Available", JOptionPane.ERROR_MESSAGE);
}