MD5 of a String in a EJB

Question

Hello,
I've tried to get a message digest of a pwd, and it works. But the problem is, that I alway get the same digest message. Consider, that it is always the same password, but this could not be the problem --> see MD5 Algorithm.
This are the lines of code:
MessageDigest md = MessageDigest.getInstance("MD5");
md.reset();
byte[] digest = md.digest(pwd.getBytes("UTF-8"));
return digest.toString();I think there could be a problem cause of using it in a Bean.
Could anybody give me some hints?

Answer 1

direct question with direct answer.
Here are three sequences of computing a MD5, how I
understood it
1. "text" -> MD5 ->"@f=l"
2. "hello -> MD5 ->"[o0\_"
3. "text" -> MD5 ->"@f=l"
Consider step 1. and step 2. have the same input
"text" and the result is the same "@f=l" Hash-value.
Is this right, or do I�ve not understand it?Don't you mean step 1 and step 3? I will assume so.
If the MD5 of a value is not the same each time then what is the point? If you are using this to scramble a password then how would one compare a presented password with a stored password if the MD5 hash values were not the same each time you hashed a particular value!