Hi,I am trying to extract the data from the P8 file to use it generate JWT.I understand that it is possible using dumpasn1 and extracting the OCTET STRING section. This is great, and is definitely possible.I was wondering if it was possible to do it on macOS using Apple's APIs (example SecItemImport), would make it simpler if it was possible all in the mac app.I tried the following but it didn't work:Error: I got the OSStatus as -25257Questions:- Is there a way to do this using SecItemImport or any other Apple APIs as I am using it in a command line mac app ?- Are the parameters to SecItemImport are incorrect ?- Am down the wrong path? , any direction to the correct API would help.What I tried with SecItemImport:- Data extracted from the file- Decoding the data from the file- Some input formatsMany thanks.import Foundation
import Security
func f1() {
do {
let fileURL = URL(fileURLWithPath: "some valid path");
let data = try Data(contentsOf: fileURL)
guard let string = String(data: data, encoding: .utf8) else {
print("Failed to convert data to string")
return
}
let b64Text = string
.replacingOccurrences(of: "-----END PRIVATE KEY-----", with: "")
.replacingOccurrences(of: "-----BEGIN PRIVATE KEY-----", with: "")
.replacingOccurrences(of: "\n", with: "")
guard let b64Data = b64Text.data(using: .utf8),
let decodedData = Data(base64Encoded: b64Data) else {
print("Was not b64 data")
return
}
print(string)
var outArray : CFArray?
let filename : CFString? = nil
var inputFormat = SecExternalFormat.formatUnknown
var itemType = SecExternalItemType.itemTypePrivateKey
let flags = SecItemImportExportFlags()
//I tried data, b64Data, decodedData all seems to return an error
let status = SecItemImport(decodedData as CFData,
filename,
&inputFormat,
&itemType,
flags,
nil,
nil,
&outArray)
//status = -25257
print("status = \(status)")
for element in (outArray as [AnyObject]?) ?? [] {
print("element = \(element)")
}
}
catch {
print("Error: \(error)")
}
}
f1()
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