I am developing a sample authorization plugin to sync the user’s local password to the network password. During the process, I prompt the user to enter both their old and new passwords in custom plugin. After the user enters the information, I use the following code to sync the passwords:
try record.changePassword(oldPssword, toPassword: newPassword)
However, I have noticed that this is clearing all saved keychain information, such as web passwords and certificates. Is it expected behavior for record.changePassword to clear previously stored keychain data?
If so, how can I overcome this issue and ensure the keychain information is preserved while syncing the password?
Thank you for your help!
Security Interface
RSS for tagThe Security Interface framework is a set of Objective-C classes that provide user interface elements for programs that implement security features.
Posts under Security Interface tag
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I have Authorisation Plugin which talks using XPC to my Launch Daemon to perform privileged actions.
I want to protect my XPC service narrowing it to be called from known trusted clients.
Now since I want authorisation plugin code which is from apple to call my service, I cannot use my own team id or app group here.
I am currently banking on following properties of client connection.
Apple Team ID : EQHXZ8M8AV
Bundle ID starting with com.apple.
Client signature verified By Apple.
This is what I have come up with.
func isClientTrusted(connection: NSXPCConnection) -> Bool {
let clientPID = connection.processIdentifier
logInfo("🔍 Checking XPC Client - PID: \(clientPID)")
var secCode: SecCode?
var secStaticCode: SecStaticCode?
let attributes = [kSecGuestAttributePid: clientPID] as NSDictionary
let status = SecCodeCopyGuestWithAttributes(nil, attributes, [], &secCode)
guard status == errSecSuccess, let code = secCode else {
logInfo("Failed to get SecCode for PID \(clientPID)")
return false
}
let staticStatus = SecCodeCopyStaticCode(code, [], &secStaticCode)
guard staticStatus == errSecSuccess, let staticCode = secStaticCode else {
logInfo("Failed to get SecStaticCode")
return false
}
var signingInfo: CFDictionary?
let signingStatus = SecCodeCopySigningInformation(staticCode, SecCSFlags(rawValue: kSecCSSigningInformation), &signingInfo)
guard signingStatus == errSecSuccess, let info = signingInfo as? [String: Any] else {
logInfo("Failed to retrieve signing info")
return false
}
// Extract and Verify Team ID
if let teamID = info["teamid"] as? String {
logInfo("XPC Client Team ID: \(teamID)")
if teamID != "EQHXZ8M8AV" { // Apple's official Team ID
logInfo("Client is NOT signed by Apple")
return false
}
} else {
logInfo("Failed to retrieve Team ID")
return false
}
// Verify Bundle ID Starts with "com.apple."
if let bundleID = info["identifier"] as? String {
logInfo("XPC Client Bundle ID: \(bundleID)")
if !bundleID.hasPrefix("com.apple.") {
logInfo("Client is NOT an Apple system process")
return false
}
} else {
logInfo("Failed to retrieve Bundle Identifier")
return false
}
// Verify Apple Code Signature Trust
var trustRequirement: SecRequirement?
let trustStatus = SecRequirementCreateWithString("anchor apple" as CFString, [], &trustRequirement)
guard trustStatus == errSecSuccess, let trust = trustRequirement else {
logInfo("Failed to create trust requirement")
return false
}
let verifyStatus = SecStaticCodeCheckValidity(staticCode, [], trust)
if verifyStatus != errSecSuccess {
logInfo("Client's signature is NOT trusted by Apple")
return false
}
logInfo("Client is fully verified as Apple-trusted")
return true
}
Q: Just wanted community feedback, is this correct approach?
I am developing a MacOS Authorisation Plugin, I have username and password entry items and utilising SFAuthorizationPluginView to display that. I am able to do so.
Requirement is I have to store ed25519 private key in PEM format in System Keychain as I need to read this entry before login to sign a request to a remote server.
I only want my authorisation plugin to access this private key in System Keychain.
I am looking up resources on the internet but I could not find specific to macOS Authorisation plugin, many are specific to iOS and some point at using entitlements and app group, but I doubt that applies to macOS authorisation plugin.
I'll really appreciate if some pointers are shared how can I store a private credential in System Keychain so that it can be used by only my plugin only, and this is before I have logged into the system.