generate MD5 strings with Objective-C?

Nibbie

Posts: 1
Joined: 2010.01

Post: #1

Jan 26, 2010 — 10:23 AM

Sorry for posting on an old thread, but how may I generate MD5 strings with Objective-C? I really don't know how to do it. Also a sample code is appreciated.

backslash

Member

Posts: 244
Joined: 2005.11

Post: #2

Jan 26, 2010 — 01:19 PM

There isn't an objective-C class in Cocoa as far as I know, but the Common Crypto API is pretty easy to use, and very fast.
Apple Man Page for Common Crypto
I used that in an app fairly recently and I'm happy with the results.

http://www.EchoMist.co.uk

cmiller

Member

Posts: 142
Joined: 2009.11

Post: #3

Jan 26, 2010 — 01:22 PM

fernandovalente Wrote:Sorry for posting on an old thread, but how may I generate MD5 strings with Objective-C? I really don't know how to do it. Also a sample code is appreciated.

An MD5 hash is a number, so just format print a hex number.

Your MD5 library should already have some function for obtaining a string. Or you could try and format print from a 128-bit unsigned integer.

See also http://www.opensource.apple.com/source/t.../md5/md5.c.

Everyone's favourite forum lurker!
http://github.com/NSError

Hog

Member

Posts: 151
Joined: 2002.09

Post: #4

Jan 27, 2010 — 09:29 AM

Code:

#include <openssl/md5.h>

...

unsigned char md[16];

MD5(data, n, &md);

...

gives you the md5 hash as binary

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