Security Testing Frameworks

Security Testing Frameworks

Comprehensive frameworks provide integrated security testing capabilities.

OWASP Mobile Security Testing Guide (MSTG) Implementation:

// iOS - MSTG test case implementation
class MSTGTestSuite {
    
    // MSTG-STORAGE: Data Storage Tests
    class DataStorageTests {
        
        func testInsecureDataStorage() -> TestResult {
            var findings: [Finding] = []
            
            // Test 1: Check for sensitive data in NSUserDefaults
            let userDefaults = UserDefaults.standard
            let keys = userDefaults.dictionaryRepresentation().keys
            
            for key in keys {
                if let value = userDefaults.string(forKey: key),
                   containsSensitiveData(value) {
                    findings.append(Finding(
                        test: "MSTG-STORAGE-1",
                        severity: .high,
                        description: "Sensitive data found in UserDefaults: \(key)"
                    ))
                }
            }
            
            // Test 2: Check file protection levels
            let documentsPath = FileManager.default.urls(for: .documentDirectory, 
                                                         in: .userDomainMask).first!
            
            if let enumerator = FileManager.default.enumerator(at: documentsPath, 
                                                               includingPropertiesForKeys: [.fileProtectionKey]) {
                for case let fileURL as URL in enumerator {
                    let protection = try? fileURL.resourceValues(forKeys: [.fileProtectionKey])
                        .fileProtection
                    
                    if protection != .complete && protection != .completeUnlessOpen {
                        findings.append(Finding(
                            test: "MSTG-STORAGE-2",
                            severity: .medium,
                            description: "Insufficient file protection: \(fileURL.lastPathComponent)"
                        ))
                    }
                }
            }
            
            return TestResult(
                category: "Data Storage",
                findings: findings,
                passed: findings.isEmpty
            )
        }
    }
    
    // MSTG-CRYPTO: Cryptography Tests
    class CryptographyTests {
        
        func testCryptographicImplementation() -> TestResult {
            var findings: [Finding] = []
            
            // Test 1: Key size verification
            let keySize = testKeyGeneration()
            if keySize < 256 {
                findings.append(Finding(
                    test: "MSTG-CRYPTO-1",
                    severity: .high,
                    description: "Weak key size: \(keySize) bits"
                ))
            }
            
            // Test 2: Random number generation
            if !testSecureRandomGeneration() {
                findings.append(Finding(
                    test: "MSTG-CRYPTO-2",
                    severity: .critical,
                    description: "Insecure random number generation detected"
                ))
            }
            
            return TestResult(
                category: "Cryptography",
                findings: findings,
                passed: findings.isEmpty
            )
        }
        
        private func testKeyGeneration() -> Int {
            // Test actual key generation
            let key = SymmetricKey(size: .bits256)
            return key.bitCount
        }
    }
    
    // MSTG-NETWORK: Network Communication Tests
    class NetworkTests {
        
        func testNetworkSecurity() async -> TestResult {
            var findings: [Finding] = []
            
            // Test 1: Certificate pinning
            let pinningTest = await testCertificatePinning()
            if !pinningTest.passed {
                findings.append(Finding(
                    test: "MSTG-NETWORK-2",
                    severity: .high,
                    description: pinningTest.error ?? "Certificate pinning not implemented"
                ))
            }
            
            // Test 2: TLS version
            let tlsTest = await testTLSVersion()
            if tlsTest.version < "1.2" {
                findings.append(Finding(
                    test: "MSTG-NETWORK-3",
                    severity: .medium,
                    description: "Weak TLS version: \(tlsTest.version)"
                ))
            }
            
            return TestResult(
                category: "Network Communication",
                findings: findings,
                passed: findings.isEmpty
            )
        }
    }
}