Re: [OBJC Newbie] - MD5 Digest
Re: [OBJC Newbie] - MD5 Digest
- Subject: Re: [OBJC Newbie] - MD5 Digest
- From: Denis Defreyne <email@hidden>
- Date: Wed, 31 May 2006 16:26:29 +0200
On 31 May 2006, at 16:13, Graham wrote:
I am in the rather arduous process of learning OBJC and converting
my existing Cocoa-Java app to OBJC.
I need a class/framework to create an MD5 digest of a String.
In Java there is a MessageDigest class to do this.
What do I use in OBJC?
The Cocoa frameworks do not include a method that creates the MD5
digest of a NSString or a NSData. However, you can easily write your
own: check the man page for md5(3). All you need is the MD5()
function if I'm not mistaken.
Also, "the MD5 digest of a string" is rather ambiguous. It depends on
the encoding used. I'm assuming you mean "the MD5 digest of the UTF-8
representation of a string."
If you're lazy, you can use CCH, a set of two categories that add MD5
and SHA-1 support to both NSString and NSData. You can find it at
<http://stoneship.org/software/#cocoa-crypto-hashing>.
Regards,
Denis Defreyne
--
mail: email@hidden
web: http://stoneship.org/
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