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| 1 | + |
| 2 | +// --- stubs --- |
| 3 | + |
| 4 | +class Data { |
| 5 | + init<S>(_ elements: S) {} |
| 6 | +} |
| 7 | + |
| 8 | +class NSObject |
| 9 | +{ |
| 10 | +} |
| 11 | + |
| 12 | +struct _RNCryptorSettings { |
| 13 | + // ... |
| 14 | +} |
| 15 | +typealias RNCryptorSettings = _RNCryptorSettings |
| 16 | + |
| 17 | +let kRNCryptorAES256Settings = RNCryptorSettings() |
| 18 | + |
| 19 | +struct _RNCryptorKeyDerivationSettings { |
| 20 | + // ... |
| 21 | +} |
| 22 | +typealias RNCryptorKeyDerivationSettings = _RNCryptorKeyDerivationSettings |
| 23 | + |
| 24 | +typealias RNCryptorHandler = () -> Void // simplified |
| 25 | + |
| 26 | +class RNCryptor : NSObject |
| 27 | +{ |
| 28 | + func key(forPassword password: String?, salt: Data?, settings keySettings: RNCryptorKeyDerivationSettings) -> Data? { return nil } |
| 29 | + func keyForPassword(_ password: String?, salt: Data?, settings keySettings: RNCryptorKeyDerivationSettings) -> Data? { return nil } |
| 30 | +} |
| 31 | + |
| 32 | +class RNEncryptor : RNCryptor |
| 33 | +{ |
| 34 | + override init() {} |
| 35 | + |
| 36 | + init(settings: RNCryptorSettings, password: String, iv anIV: Data?, encryptionSalt anEncryptionSalt: Data?, hmacSalt anHMACSalt: Data?, handler: RNCryptorHandler?) {} |
| 37 | + init(settings: RNCryptorSettings, password: String, IV anIV: Data?, encryptionSalt anEncryptionSalt: Data?, HMACSalt anHMACSalt: Data?, handler: RNCryptorHandler?) {} |
| 38 | + |
| 39 | + func encryptData(_ data: Data?, with settings: RNCryptorSettings, password: String?, iv anIV: Data?, encryptionSalt anEncryptionSalt: Data?, hmacSalt anHMACSalt: Data?) throws -> Data { return Data(0) } |
| 40 | + func encryptData(_ data: Data?, withSettings settings: RNCryptorSettings, password: String?, IV anIV: Data?, encryptionSalt anEncryptionSalt: Data?, HMACSalt anHMACSalt: Data?) throws -> Data { return Data(0) } |
| 41 | +} |
| 42 | + |
| 43 | +// --- tests --- |
| 44 | + |
| 45 | +func getARandomString() -> String { |
| 46 | + let charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890" |
| 47 | + return String("................".map{_ in charset.randomElement()!}) |
| 48 | +} |
| 49 | + |
| 50 | +func test(myPassword: String) { |
| 51 | + // RNCryptor |
| 52 | + let myEncryptor = RNEncryptor() |
| 53 | + let myData = Data(0) |
| 54 | + let myKeyDerivationSettings = RNCryptorKeyDerivationSettings() |
| 55 | + let myHandler = {} |
| 56 | + let myIV = Data(0) |
| 57 | + let myRandomSalt1 = Data(getARandomString()) |
| 58 | + let myRandomSalt2 = Data(getARandomString()) |
| 59 | + let myConstantSalt1 = Data("abcdef123456") |
| 60 | + let myConstantSalt2 = Data(0) |
| 61 | + |
| 62 | + let _ = myEncryptor.key(forPassword: myPassword, salt: myRandomSalt1, settings: myKeyDerivationSettings) // GOOD |
| 63 | + let _ = myEncryptor.key(forPassword: myPassword, salt: myConstantSalt1, settings: myKeyDerivationSettings) // BAD |
| 64 | + let _ = myEncryptor.keyForPassword(myPassword, salt: myRandomSalt2, settings: myKeyDerivationSettings) // GOOD |
| 65 | + let _ = myEncryptor.keyForPassword(myPassword, salt: myConstantSalt2, settings: myKeyDerivationSettings) // BAD |
| 66 | + |
| 67 | + let _ = RNEncryptor(settings: kRNCryptorAES256Settings, password: myPassword, iv: myIV, encryptionSalt: myRandomSalt1, hmacSalt: myRandomSalt2, handler: myHandler) // GOOD |
| 68 | + let _ = RNEncryptor(settings: kRNCryptorAES256Settings, password: myPassword, iv: myIV, encryptionSalt: myConstantSalt1, hmacSalt: myRandomSalt2, handler: myHandler) // BAD |
| 69 | + let _ = RNEncryptor(settings: kRNCryptorAES256Settings, password: myPassword, iv: myIV, encryptionSalt: myRandomSalt1, hmacSalt: myConstantSalt2, handler: myHandler) // BAD |
| 70 | + let _ = RNEncryptor(settings: kRNCryptorAES256Settings, password: myPassword, IV: myIV, encryptionSalt: myRandomSalt1, HMACSalt: myRandomSalt2, handler: myHandler) // GOOD |
| 71 | + let _ = RNEncryptor(settings: kRNCryptorAES256Settings, password: myPassword, IV: myIV, encryptionSalt: myConstantSalt1, HMACSalt: myRandomSalt2, handler: myHandler) // BAD |
| 72 | + let _ = RNEncryptor(settings: kRNCryptorAES256Settings, password: myPassword, IV: myIV, encryptionSalt: myRandomSalt1, HMACSalt: myConstantSalt2, handler: myHandler) // BAD |
| 73 | + |
| 74 | + let _ = try? myEncryptor.encryptData(myData, with: kRNCryptorAES256Settings, password: myPassword, iv: myIV, encryptionSalt: myRandomSalt1, hmacSalt: myRandomSalt2) // GOOD |
| 75 | + let _ = try? myEncryptor.encryptData(myData, with: kRNCryptorAES256Settings, password: myPassword, iv: myIV, encryptionSalt: myConstantSalt1, hmacSalt: myRandomSalt2) // BAD |
| 76 | + let _ = try? myEncryptor.encryptData(myData, with: kRNCryptorAES256Settings, password: myPassword, iv: myIV, encryptionSalt: myRandomSalt1, hmacSalt: myConstantSalt2) // BAD |
| 77 | + let _ = try? myEncryptor.encryptData(myData, withSettings: kRNCryptorAES256Settings, password: myPassword, IV: myIV, encryptionSalt: myRandomSalt1, HMACSalt: myRandomSalt2) // GOOD |
| 78 | + let _ = try? myEncryptor.encryptData(myData, withSettings: kRNCryptorAES256Settings, password: myPassword, IV: myIV, encryptionSalt: myConstantSalt1, HMACSalt: myRandomSalt2) // BAD |
| 79 | + let _ = try? myEncryptor.encryptData(myData, withSettings: kRNCryptorAES256Settings, password: myPassword, IV: myIV, encryptionSalt: myRandomSalt1, HMACSalt: myConstantSalt2) // BAD |
| 80 | +} |
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