Possible OT, q>re crypto and cocoa (DES)
Possible OT, q>re crypto and cocoa (DES)
- Subject: Possible OT, q>re crypto and cocoa (DES)
- From: Walt Horat <email@hidden>
- Date: Thu, 3 May 2007 11:50:15 -0700
Our windows counterparts are using .NET classes for DES encryption.
I've found the OSS crypto++ library, which produces results
incompatible with the DESCryptoServiceProvider.
Are there any native OS services for DES encryption? Hopefully a
cocoa friendly solution?
Any pointers, clues, advice, hints or links to same appreciated.
Walt Horat
email@hidden
"Don't sweat it -- it's not real life. It's only ones and zeroes."
On May 3, 2007, at 8:35 AM, Sam Stigler wrote:
Hi,
I've been struggling with this for a while, so I figured I'd post
this question
to the list and see if anybody has any ideas: I'm attempting to
make my first
program that uses Core Data, NSOutlineView, and NSTreeController
all together.
I used a really great tutorial I found at
http://www.bleepsoft.com/tyler/index.php?itemid=9 to get up to the
point where
I now have my first level of outline objects (the upper level in
the hierarchy)
in the outline view, but when I created a test lower-level object
(one level
down), it is just showing up as a blank line because I cannot
figure out a way
to tell the bindings that I want the children to not just be a
relationship
(e.g., "children"), but an attribute in that related entity (e.g.,
"children.fileName"). Every time I try, it gives me the following
error:
[<_NSFaultingMutableSet 0x37e3a0>
addObserver:forKeyPath:options:context:] is
not supported. Key path: fileName
My entities are (with some attributes left out for time's sake):
Entity: OutlineGrouping
Attribute: name (String; neither optional nor transient)
To-Many Relationship:
Name: children
Optional and transient
Destination: Media
Inverse: grouping
Delete Rule: Nullify
Entity: Media
Attribute: author (String; optional)
...
Attribute: fileName (String; not optional, not transient)
...
To-One Relationship:
Name: grouping
Neither optional nor transient
Destination: OutlineGrouping
Inverse: children
Delete Rule: Nullify
I have already tried overriding
(void)outlineView:willDisplayCell:forTableColumn:item in my outline
view with
the idea that I could simply intercept the Media NSManagedObject
and return its
fileName attribute instead, but the method was never called, I
guess because I'm
using bindings instead of a data source.
Any ideas you have would be greatly appreciated.
Thanks,
Sam
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