Solved

Message Digest of char array

Posted on 2007-03-30
6
338 Views
Last Modified: 2013-12-29
I'm trying to create a message digest for a password, which is stored as a char array.

Currently, I'm doing something like this:

char [] password ;
...
MessageDigest md5=MessageDigest.getInstance("MD5");
md5.update(new String(password).getBytes("UTF8"));
byte [] md = md5.digest();

Which works. However, converting it to a string [in order to get a byte array for it] defeats the entire point of storing the password as a char array in the first place..

So is there a direct way of achieving this, without incorporating java.lang.String?


Thanks
0
Comment
Question by:InteractiveMind
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
6 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 168 total points
ID: 18822681
The password shouldn't be stored anywhere client-side, in whatever form
0
 
LVL 10

Assisted Solution

by:ADSLMark
ADSLMark earned 166 total points
ID: 18822729
A character is 2 bytes long and a byte is 1 byte long.. so if you want to convert a char[] to a byte[], then your solution seems best.
The message digest works on bytes only anyway..

Mark
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 18822739
If you plump for low security and store it client-side, then of course you could store it as UTF byte[]
0
 
LVL 30

Assisted Solution

by:Mayank S
Mayank S earned 166 total points
ID: 18825626
>> byte [] md = md5.digest();

You're storing it as a byte[] so it looks fine to me.
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Eclipse Java import and method not resolved 4 125
Eclipse for Java EE development 2 67
jsp error 6 69
Delete .class files at every compile 4 55
Introduction Java can be integrated with native programs using an interface called JNI(Java Native Interface). Native programs are programs which can directly run on the processor. JNI is simply a naming and calling convention so that the JVM (Java…
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:
The viewer will learn how to implement Singleton Design Pattern in Java.
Suggested Courses

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question