Hey guys,
Thanks for all the replies.
I am sending the hash in a URL to a website to verify the information
being sent. Every time I sent it with the above hash, it
didn't work. When I sent it with a hash from another source (like a
website that creates hashes), it worked.
Niko20, sorry I didn't reference the function. I didn't realize it
wasn't a built in API. I imported another library for my project, and
I guess it gets imported from there.
I eventually used code similar to the sample you provided and it
worked. Thanks for the suggestion.
The code I ended up using is:
public static String MD5_Hash(String s) {
MessageDigest m = null;
try {
m = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
m.update(s.getBytes(),0,s.length());
String hash = new BigInteger(1, m.digest()).toString(16);
return hash;
}
On Dec 7, 1:55 pm, Kevin Duffey <andjar...@gmail.com> wrote:
> Dan Niko20, little uptight this morning? It's amazing what happens when
> you're actually nice in responses instead of so harsh. If you're going to
> help out, why send a 3rd reply with such an attitude.
>
>
>
> On Mon, Dec 7, 2009 at 12:36 PM, niko20 <nikolatesl...@yahoo.com> wrote:
> > And what the hell is your "MD5_Hash" function look like anyway?
> > That's not a built in android API.
>
> > Crimony, give some info next time! Obviously your MD5 function is
> > messed up.
>
> > -niko
>
> > On Dec 7, 2:33 pm, niko20 <nikolatesl...@yahoo.com> wrote:
> > > Try this:
>
> > > public String md5(String s) {
> > > try {
> > > // Create MD5 Hash
> > > MessageDigest digest = java.security.MessageDigest.getInstance
> > > ("MD5");
> > > digest.update(s.getBytes());
> > > byte messageDigest[] = digest.digest();
>
> > > // Create Hex String
> > > StringBuffer hexString = new StringBuffer();
> > > for (int i=0; i<messageDigest.length; i++)
> > > hexString.append(Integer.toHexString(0xFF & messageDigest
> > > [i]));
> > > return hexString.toString();
>
> > > } catch (NoSuchAlgorithmException e) {
> > > e.printStackTrace();
> > > }
> > > return "";
>
> > > }
>
> > > Found it on google search
>
> > > On Dec 7, 2:32 pm, niko20 <nikolatesl...@yahoo.com> wrote:
>
> > > > Just a a side note, why do you care if it doesn't match? Unless you
> > > > are comparing MD5's to ones generated elsewhere, you are still getting
> > > > a unique hash. And as long as you compare to only hashes generated by
> > > > android it will always match....
>
> > > > -niko
>
> > > > On Dec 7, 1:14 pm, Justin Anderson <janderson....@gmail.com> wrote:
>
> > > > > Have you verified the website is correct by checking with a couple
> > different
> > > > > hash generation sites?
>
> > > > > On Dec 6, 2009 11:00 PM, "Mike M" <mike.mos...@gmail.com> wrote:
>
> > > > > Hey guys,
>
> > > > > I'm trying to get an MD5 Hash in my Android app, but it's not giving
> > > > > the correct hash.
>
> > > > > For example, in my app I have this:
>
> > > > > MD5_Hash hash = new MD5_Hash();
> > > > > myHash = hash.Hash("What I want to Hash");
>
> > > > > I get this from the above code: 306a801b82d299c8e965c2bf1d7fc18
>
> > > > > I go to a website that will calculate MD5 hashes, and enter "What I
> > > > > want to Hash", and get this: 306a8001b82d299c8e965c2bf1d7fc18.
>
> > > > > It does this every time; for some reason it strips one of the 0's.
> > > > > Has anyone noticed this? Is there another / bettter way to get a
> > hash
> > > > > ?
>
> > > > > Thanks
>
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