forked from core/mobile_nebula
70 lines
2.0 KiB
Swift
70 lines
2.0 KiB
Swift
import Foundation
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let groupName = "group.net.defined.mobileNebula"
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class KeyChain {
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class func save(key: String, data: Data, managed: Bool) -> Bool {
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var query: [String: Any] = [
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kSecClass as String : kSecClassGenericPassword as String,
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kSecAttrAccount as String : key,
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kSecValueData as String : data,
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kSecAttrAccessGroup as String: groupName,
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]
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if (managed) {
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query[kSecAttrAccessible as String] = kSecAttrAccessibleAfterFirstUnlock
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}
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// Attempt to delete an existing key to allow for an overwrite
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_ = self.delete(key: key)
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return SecItemAdd(query as CFDictionary, nil) == 0
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}
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class func load(key: String) -> Data? {
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let query: [String: Any] = [
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kSecClass as String : kSecClassGenericPassword,
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kSecAttrAccount as String : key,
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kSecReturnData as String : kCFBooleanTrue!,
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kSecMatchLimit as String : kSecMatchLimitOne,
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kSecAttrAccessGroup as String: groupName,
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]
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var dataTypeRef: AnyObject? = nil
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let status: OSStatus = SecItemCopyMatching(query as CFDictionary, &dataTypeRef)
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if status == noErr {
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return dataTypeRef as! Data?
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} else {
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return nil
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}
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}
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class func delete(key: String) -> Bool {
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let query: [String: Any] = [
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kSecClass as String : kSecClassGenericPassword as String,
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kSecAttrAccount as String : key,
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kSecAttrAccessGroup as String: groupName,
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]
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return SecItemDelete(query as CFDictionary) == 0
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}
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}
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extension Data {
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init<T>(from value: T) {
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var value = value
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var data = Data()
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withUnsafePointer(to: &value, { (ptr: UnsafePointer<T>) -> Void in
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data = Data(buffer: UnsafeBufferPointer(start: ptr, count: 1))
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})
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self.init(data)
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}
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func to<T>(type: T.Type) -> T {
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return self.withUnsafeBytes { $0.load(as: T.self) }
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}
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}
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