Hi, I’m trying to save data to the iOS keychain. I...

# multiplatform

[Ronald van D]

Hi, I’m trying to save data to the iOS keychain.
I use the following piece of code to accomplish that:

val searchDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault, 5, null, null)

        CFDictionaryAddValue(searchDictionary, kSecClass, kSecClassGenericPassword)
        CFDictionaryAddValue(searchDictionary, kSecAttrService, CFBridgingRetain(appName))
        CFDictionaryAddValue(searchDictionary, kSecAttrGeneric, CFBridgingRetain(identifier))
        CFDictionaryAddValue(searchDictionary, kSecAttrAccount, CFBridgingRetain(identifier))
        CFDictionaryAddValue(searchDictionary, kSecValueData, CFBridgingRetain(NSNumber(int = 2048)))

 SecItemAdd(searchDictionary, null)

But I keep getting OSStatus -50 (One or more parameters passed to a function were not valid.). I followed several Ojective-c tutorials to come up with this code and it should be valid.. Someone got an idea what I’m missing?

[Kris Wong]

is there a reason your 5th add statement uses dictionary and not searchDictionary

[Ronald van D]

Ah damn, updated the code snipped. In my source it uses the same dictionary.

[Kris Wong]

i'm not sure that NSNumber is valid for kSecValueData

[Kris Wong]

it's expecting type CFData

[Kris Wong]

https://developer.apple.com/documentation/security/ksecvaluedata?language=objc

[Ronald van D]

Ah hero 🙌! Wrapping my value in NSData seems to do the trick 😄.