48 lines
1.4 KiB
Swift
48 lines
1.4 KiB
Swift
import Foundation
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import Security
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protocol KeychainStoreProtocol {
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func save(_ value: String, for key: String) -> Bool
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func read(for key: String) -> String?
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func delete(for key: String) -> Bool
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}
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final class KeychainStore: KeychainStoreProtocol {
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func save(_ value: String, for key: String) -> Bool {
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let data = Data(value.utf8)
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let query: [CFString: Any] = [
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kSecClass: kSecClassGenericPassword,
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kSecAttrAccount: key,
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kSecValueData: data
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]
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SecItemDelete(query as CFDictionary)
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return SecItemAdd(query as CFDictionary, nil) == errSecSuccess
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}
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func read(for key: String) -> String? {
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let query: [CFString: Any] = [
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kSecClass: kSecClassGenericPassword,
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kSecAttrAccount: key,
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kSecReturnData: true,
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kSecMatchLimit: kSecMatchLimitOne
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]
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var item: CFTypeRef?
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guard SecItemCopyMatching(query as CFDictionary, &item) == errSecSuccess,
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let data = item as? Data else {
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return nil
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}
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return String(data: data, encoding: .utf8)
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}
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func delete(for key: String) -> Bool {
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let query: [CFString: Any] = [
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kSecClass: kSecClassGenericPassword,
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kSecAttrAccount: key
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]
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return SecItemDelete(query as CFDictionary) == errSecSuccess
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}
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}
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