Digital signing in objective-c using xcode 3.2.5

Question

Created Jul ’15

Replies 1

Boosts 0

Participants 2

Hi,

I am new to the xcode and also in MAC envronment. I want to know what are the API or methods used for Digital Signing in objective-c using xcode 3.2.5. I have tried SecKeyRawSign() and SecSignTransformCreate() methods, but no use because the xcode i am using is unable to recognize the methods and its related references such as SecTransformRef etc.... Any help would be appreciated.

Best Regards,

j_nadella.

Boost

Answer 1

DTS Engineer OP

Apple

Jul ’15

I am new to the xcode and also in MAC envronment. I want to know what are the API or methods used for Digital Signing in objective-c using xcode 3.2.5.

Xcode 3.2.5? Really?

That version of Xcode is very old. What version of OS X are you running it on?

With regards signing, there's a specific issue at play. IIRC Xcode 3.2 is for Mac OS X 10.6, and the API you want to use (

SecSignTransformCreate

) was introduced in OS X 10.7. If you really are stuck on 10.6 then you'll have to use the much older CDSA APIs. These are long-since deprecated, so there's not a lot of information about how to use them. Specifically, I can't help you with them because I never got around to learning them myself. Moreover, I can't recommend that you write new code that targets these APIs because, well, they're deprecated.

If there's any chance you can upgrade to OS X 10.7 and Xcode 4.x, the situation will be a lot clearer. Here you'll be able to use

SecSignTransformCreate

, which yields two benefits:

you can crib code from the CryptoCompatibility sample code
these are, in fact, the most up-to-date OS X APIs for this, so you won't be writing code for something that we no longer recommend

Share and Enjoy
—
Quinn "The Eskimo!"
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"

0