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Implemented biometric authentication based on FaceID or TouchID, pass…
…word is stored in iOS encrypted keychain
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| // | ||
| // Biometry.swift | ||
| // LibrePass | ||
| // | ||
| // Created by Zapomnij on 19/04/2024. | ||
| // | ||
|
|
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| import Foundation | ||
| import LocalAuthentication | ||
|
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| func setUpBiometricalAuthentication(password: String) async -> Bool { | ||
| let context = LAContext() | ||
|
|
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| if context.canEvaluatePolicy(.deviceOwnerAuthentication, error: nil) { | ||
| do { | ||
| try await context.evaluatePolicy(.deviceOwnerAuthentication, localizedReason: "Save password in keychain") | ||
|
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| guard let access = SecAccessControlCreateWithFlags(nil, kSecAttrAccessibleWhenPasscodeSetThisDeviceOnly, .userPresence, nil) else { | ||
| return false | ||
| } | ||
|
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| guard let passwordData = password.data(using: .utf8) else { | ||
| return false | ||
| } | ||
|
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| let query: [String: Any] = | ||
| [kSecClass as String: kSecClassGenericPassword, | ||
| kSecAttrService as String: "LibrePass", | ||
| kSecAttrAccessControl as String: access, | ||
| kSecUseAuthenticationContext as String: context, | ||
| kSecValueData as String: passwordData as Data] | ||
| SecItemDelete(query as CFDictionary) | ||
|
|
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| let status = SecItemAdd(query as CFDictionary, nil) | ||
| if status == errSecSuccess { | ||
| return true | ||
| } | ||
| } catch { | ||
|
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| } | ||
| } | ||
|
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| return false | ||
| } | ||
|
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| func accessKeychain() async -> String? { | ||
| let context = LAContext() | ||
|
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| if context.canEvaluatePolicy(.deviceOwnerAuthentication, error: nil) { | ||
| do { | ||
| try await context.evaluatePolicy(.deviceOwnerAuthentication, localizedReason: "Save password in keychain") | ||
|
|
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| let query: [String: Any] = | ||
| [kSecClass as String: kSecClassGenericPassword, | ||
| kSecAttrService as String: "LibrePass", | ||
| kSecMatchLimit as String: kSecMatchLimitOne, | ||
| kSecReturnAttributes as String: true, | ||
| kSecUseAuthenticationContext as String: context, | ||
| kSecReturnData as String: true] | ||
|
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| var item: CFTypeRef? | ||
| let status = SecItemCopyMatching(query as CFDictionary, &item) | ||
| print(status) | ||
| if status == errSecSuccess { | ||
| if let decoded = item as? [String: Any], let passwordData = decoded[kSecValueData as String] as? Data, let password = String(data: passwordData, encoding: .utf8) { | ||
| return password | ||
| } | ||
| } | ||
| } catch { | ||
|
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| } | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| func disableBiometricAuthentication() async -> Bool { | ||
| let context = LAContext() | ||
|
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| if context.canEvaluatePolicy(.deviceOwnerAuthentication, error: nil) { | ||
| do { | ||
| try await context.evaluatePolicy(.deviceOwnerAuthentication, localizedReason: "Save password in keychain") | ||
|
|
||
| let query: [String: Any] = | ||
| [kSecClass as String: kSecClassGenericPassword, | ||
| kSecAttrService as String: "LibrePass", | ||
| kSecReturnAttributes as String: true, | ||
| kSecUseAuthenticationContext as String: context, | ||
| kSecReturnData as String: true] | ||
|
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| let status = SecItemDelete(query as CFDictionary) | ||
| if status == errSecSuccess { | ||
| return true | ||
| } | ||
| } catch { | ||
|
|
||
| } | ||
| } | ||
|
|
||
| return false | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> | ||
| <plist version="1.0"> | ||
| <dict/> | ||
| </plist> |