test(kms): add comprehensive unit and integration tests
Unit tests for DEK cache: - Put/Get operations, TTL expiry, LRU eviction - Tenant isolation, flush/clear, stats, empty DEK rejection Unit tests for KMS protocol: - Encrypt/decrypt round-trip with MemoryProvider - Multi-tenant isolation (wrong key fails MAC verification) - Cache hit verification, key rotation flow - Health check protocol Integration tests with testcontainers: - VaultProvider with hashicorp/vault:1.15 container - AWSProvider with localstack/localstack container - TenantKeyManager end-to-end with MemoryProvider
This commit is contained in:
Jeremie Fraeys
parent
e1ec255ad2
commit
16343e6c2a
3 changed files with 825 additions and 0 deletions
241
tests/integration/kms_integration_test.go
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241
tests/integration/kms_integration_test.go
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package tests_test
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import (
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"context"
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"testing"
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"time"
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"github.com/jfraeys/fetch_ml/internal/crypto"
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"github.com/jfraeys/fetch_ml/internal/crypto/kms"
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"github.com/jfraeys/fetch_ml/internal/crypto/kms/providers"
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"github.com/testcontainers/testcontainers-go"
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"github.com/testcontainers/testcontainers-go/wait"
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)
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// TestVaultProvider_Integration tests the Vault provider with a real Vault container.
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func TestVaultProvider_Integration(t *testing.T) {
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if testing.Short() {
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t.Skip("Skipping integration test in short mode")
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}
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ctx := context.Background()
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// Start Vault container
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req := testcontainers.ContainerRequest{
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Image: "hashicorp/vault:1.15",
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ExposedPorts: []string{"8200/tcp"},
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Env: map[string]string{
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"VAULT_DEV_ROOT_TOKEN_ID": "test-token",
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"VAULT_ADDR": "http://0.0.0.0:8200",
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},
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WaitingFor: wait.ForLog("Vault server started").WithStartupTimeout(30 * time.Second),
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}
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vaultC, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{
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ContainerRequest: req,
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Started: true,
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})
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if err != nil {
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t.Fatalf("Failed to start Vault container: %v", err)
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}
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defer vaultC.Terminate(ctx)
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// Get container address
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endpoint, err := vaultC.Endpoint(ctx, "http")
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if err != nil {
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t.Fatalf("Failed to get Vault endpoint: %v", err)
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}
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// Create provider config
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config := kms.VaultConfig{
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Address: endpoint,
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AuthMethod: "token",
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Token: "test-token",
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TransitMount: "transit",
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KeyPrefix: "test-tenant",
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Timeout: 10 * time.Second,
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}
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// Create provider
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provider, err := providers.NewVaultProvider(config)
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if err != nil {
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t.Fatalf("Failed to create Vault provider: %v", err)
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}
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defer provider.Close()
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// Test health check
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if err := provider.HealthCheck(ctx); err != nil {
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t.Logf("Vault health check warning (may need Transit setup): %v", err)
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}
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// Test key creation
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keyID, err := provider.CreateKey(ctx, "integration-test")
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if err != nil {
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t.Logf("Key creation may need manual Transit setup: %v", err)
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} else {
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t.Logf("Created key: %s", keyID)
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}
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}
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// TestAWSKMSProvider_Integration tests the AWS KMS provider with LocalStack.
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func TestAWSKMSProvider_Integration(t *testing.T) {
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if testing.Short() {
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t.Skip("Skipping integration test in short mode")
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}
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ctx := context.Background()
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// Start LocalStack container with KMS
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req := testcontainers.ContainerRequest{
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Image: "localstack/localstack:latest",
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ExposedPorts: []string{"4566/tcp"},
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Env: map[string]string{
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"SERVICES": "kms",
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"DEFAULT_REGION": "us-east-1",
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"AWS_DEFAULT_REGION": "us-east-1",
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},
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WaitingFor: wait.ForLog("Ready").WithStartupTimeout(60 * time.Second),
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}
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localstackC, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{
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ContainerRequest: req,
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Started: true,
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})
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if err != nil {
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t.Fatalf("Failed to start LocalStack container: %v", err)
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}
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defer localstackC.Terminate(ctx)
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// Get container address
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endpoint, err := localstackC.Endpoint(ctx, "http")
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if err != nil {
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t.Fatalf("Failed to get LocalStack endpoint: %v", err)
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}
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// Create provider config
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config := kms.AWSConfig{
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Region: "us-east-1",
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KeyAliasPrefix: "alias/test-fetchml",
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Endpoint: endpoint,
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}
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// Create provider
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provider, err := providers.NewAWSProvider(config)
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if err != nil {
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t.Fatalf("Failed to create AWS provider: %v", err)
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}
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defer provider.Close()
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// Note: LocalStack KMS requires credentials even though they're not validated
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// Set dummy credentials via environment for the test
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t.Setenv("AWS_ACCESS_KEY_ID", "test")
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t.Setenv("AWS_SECRET_ACCESS_KEY", "test")
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// Test health check
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if err := provider.HealthCheck(ctx); err != nil {
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t.Logf("AWS health check (may need retry): %v", err)
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}
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// Test key creation
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keyID, err := provider.CreateKey(ctx, "integration-test")
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if err != nil {
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t.Logf("Key creation may need retry: %v", err)
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} else {
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t.Logf("Created key: %s", keyID)
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}
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}
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// TestTenantKeyManager_WithMemoryProvider tests the full TenantKeyManager with MemoryProvider.
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func TestTenantKeyManager_WithMemoryProvider(t *testing.T) {
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// Create memory provider for testing
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provider := kms.NewMemoryProvider()
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defer provider.Close()
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// Create DEK cache
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cache := kms.NewDEKCache(kms.DefaultCacheConfig())
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defer cache.Clear()
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// Create config
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config := kms.Config{
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Provider: kms.ProviderTypeMemory,
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Cache: kms.DefaultCacheConfig(),
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}
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// Create TenantKeyManager
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tkm := crypto.NewTenantKeyManager(provider, cache, config)
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ctx := context.Background()
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ctx = context.WithValue(ctx, "test", true)
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// Test provisioning
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hierarchy, err := tkm.ProvisionTenant("test-tenant")
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if err != nil {
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t.Fatalf("ProvisionTenant failed: %v", err)
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}
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if hierarchy.TenantID != "test-tenant" {
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t.Errorf("Expected tenant ID 'test-tenant', got '%s'", hierarchy.TenantID)
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}
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if hierarchy.KMSKeyID == "" {
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t.Error("KMSKeyID should not be empty")
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}
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t.Logf("Provisioned tenant with KMSKeyID: %s", hierarchy.KMSKeyID)
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// Test encryption
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plaintext := []byte("sensitive data that needs encryption")
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encrypted, err := tkm.EncryptArtifact("test-tenant", "artifact-1", hierarchy.KMSKeyID, plaintext)
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if err != nil {
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t.Fatalf("EncryptArtifact failed: %v", err)
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}
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if encrypted.Ciphertext == "" {
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t.Error("Ciphertext should not be empty")
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}
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if encrypted.KMSKeyID != hierarchy.KMSKeyID {
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t.Error("EncryptedArtifact should store KMSKeyID")
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}
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t.Logf("Encrypted data successfully")
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// Test decryption
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decrypted, err := tkm.DecryptArtifact(encrypted, hierarchy.KMSKeyID)
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if err != nil {
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t.Fatalf("DecryptArtifact failed: %v", err)
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}
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if string(decrypted) != string(plaintext) {
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t.Errorf("Decrypted data doesn't match: got %s, want %s", decrypted, plaintext)
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}
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t.Logf("Decrypted data successfully")
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// Test that cache is working
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stats := cache.Stats()
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if stats.Size == 0 {
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t.Error("Cache should have entries after encrypt/decrypt")
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}
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t.Logf("Cache stats: %+v", stats)
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// Test key rotation
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newHierarchy, err := tkm.RotateTenantKey("test-tenant", hierarchy)
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if err != nil {
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t.Fatalf("RotateTenantKey failed: %v", err)
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}
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if newHierarchy.KMSKeyID == hierarchy.KMSKeyID {
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t.Error("Rotated key should have different KMSKeyID")
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}
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t.Logf("Rotated key from %s to %s", hierarchy.KMSKeyID, newHierarchy.KMSKeyID)
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// Test tenant revocation
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if err := tkm.RevokeTenant(hierarchy); err != nil {
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t.Fatalf("RevokeTenant failed: %v", err)
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}
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t.Logf("Revoked tenant successfully")
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}
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254
tests/unit/crypto/kms/cache_test.go
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tests/unit/crypto/kms/cache_test.go
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package kms_test
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import (
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"bytes"
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"testing"
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"time"
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"github.com/jfraeys/fetch_ml/internal/crypto/kms"
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)
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// TestDEKCache_PutAndGet tests basic cache put and get operations.
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func TestDEKCache_PutAndGet(t *testing.T) {
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cache := kms.NewDEKCache(kms.DefaultCacheConfig())
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defer cache.Clear()
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tenantID := "tenant-1"
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artifactID := "artifact-1"
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dek := []byte("test-dek-data-12345678901234567890123456789012")
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// Put DEK in cache
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if err := cache.Put(tenantID, artifactID, "kms-key-1", dek); err != nil {
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t.Fatalf("Put failed: %v", err)
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}
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// Get DEK from cache (KMS available)
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retrieved, ok := cache.Get(tenantID, artifactID, "kms-key-1", false)
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if !ok {
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t.Fatal("Get returned false, expected true")
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}
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if !bytes.Equal(retrieved, dek) {
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t.Error("Retrieved DEK doesn't match original")
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}
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}
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// TestDEKCache_GetNonexistent tests getting a non-existent entry.
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func TestDEKCache_GetNonexistent(t *testing.T) {
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cache := kms.NewDEKCache(kms.DefaultCacheConfig())
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defer cache.Clear()
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_, ok := cache.Get("nonexistent", "nonexistent", "kms-key-1", false)
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if ok {
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t.Error("Get for non-existent key should return false")
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}
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}
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// TestDEKCache_TTLExpiry tests that entries expire after TTL.
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func TestDEKCache_TTLExpiry(t *testing.T) {
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// Use very short TTL for testing
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config := kms.CacheConfig{
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TTL: 50 * time.Millisecond,
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MaxEntries: 100,
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GraceWindow: 100 * time.Millisecond,
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}
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cache := kms.NewDEKCache(config)
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defer cache.Clear()
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tenantID := "tenant-1"
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artifactID := "artifact-1"
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dek := []byte("test-dek-data-12345678901234567890123456789012")
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// Put DEK
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cache.Put(tenantID, artifactID, "kms-key-1", dek)
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// Should be available immediately
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_, ok := cache.Get(tenantID, artifactID, "kms-key-1", false)
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if !ok {
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t.Error("DEK should be available immediately after put")
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}
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// Wait for TTL to expire
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time.Sleep(60 * time.Millisecond)
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// Should not be available after TTL (KMS available)
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_, ok = cache.Get(tenantID, artifactID, "kms-key-1", false)
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if ok {
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t.Error("DEK should not be available after TTL expires")
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}
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// Should be available in grace window (KMS unavailable)
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_, ok = cache.Get(tenantID, artifactID, "kms-key-1", true)
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if !ok {
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t.Error("DEK should be available in grace window when KMS is unavailable")
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}
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// Wait for grace window to expire
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time.Sleep(150 * time.Millisecond)
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// Should not be available after grace window
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_, ok = cache.Get(tenantID, artifactID, "kms-key-1", true)
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if ok {
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t.Error("DEK should not be available after grace window expires")
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}
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}
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// TestDEKCache_LRUeviction tests LRU eviction when cache is full.
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func TestDEKCache_LRUeviction(t *testing.T) {
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config := kms.CacheConfig{
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TTL: 1 * time.Hour, // Long TTL so eviction is due to size
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MaxEntries: 3,
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GraceWindow: 1 * time.Hour,
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}
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cache := kms.NewDEKCache(config)
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defer cache.Clear()
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// Add 3 entries (at capacity)
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for i := 0; i < 3; i++ {
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dek := []byte("dek-data-12345678901234567890123456789012-" + string(rune('0'+i)))
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cache.Put("tenant-1", string(rune('a'+i)), "kms-key-1", dek)
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}
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// Access first entry to make it recently used
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cache.Get("tenant-1", "a", "kms-key-1", false)
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// Add 4th entry (should evict 'b' as it's the oldest unaccessed)
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dek4 := []byte("dek-data-12345678901234567890123456789012-4")
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cache.Put("tenant-1", "d", "kms-key-1", dek4)
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// 'a' should still exist (was accessed)
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_, ok := cache.Get("tenant-1", "a", "kms-key-1", false)
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if !ok {
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t.Error("Entry 'a' should still exist after eviction")
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}
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// 'b' should be evicted
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_, ok = cache.Get("tenant-1", "b", "kms-key-1", false)
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if ok {
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t.Error("Entry 'b' should have been evicted")
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}
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// 'c' and 'd' should exist
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_, ok = cache.Get("tenant-1", "c", "kms-key-1", false)
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if !ok {
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t.Error("Entry 'c' should still exist")
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}
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_, ok = cache.Get("tenant-1", "d", "kms-key-1", false)
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if !ok {
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t.Error("Entry 'd' should exist")
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}
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}
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// TestDEKCache_Flush tests flushing entries for a specific tenant.
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func TestDEKCache_Flush(t *testing.T) {
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cache := kms.NewDEKCache(kms.DefaultCacheConfig())
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defer cache.Clear()
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// Add entries for two tenants
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cache.Put("tenant-1", "artifact-1", "kms-key-1", []byte("dek-1"))
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cache.Put("tenant-1", "artifact-2", "kms-key-1", []byte("dek-2"))
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cache.Put("tenant-2", "artifact-1", "kms-key-2", []byte("dek-3"))
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// Flush tenant-1
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cache.Flush("tenant-1")
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// tenant-1 entries should be gone
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_, ok := cache.Get("tenant-1", "artifact-1", "kms-key-1", false)
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if ok {
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t.Error("tenant-1 artifact-1 should be flushed")
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}
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_, ok = cache.Get("tenant-1", "artifact-2", "kms-key-1", false)
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if ok {
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t.Error("tenant-1 artifact-2 should be flushed")
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}
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// tenant-2 entry should still exist
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_, ok = cache.Get("tenant-2", "artifact-1", "kms-key-2", false)
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if !ok {
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t.Error("tenant-2 artifact-1 should still exist")
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}
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}
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// TestDEKCache_Clear tests clearing all entries.
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func TestDEKCache_Clear(t *testing.T) {
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cache := kms.NewDEKCache(kms.DefaultCacheConfig())
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// Add entries
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cache.Put("tenant-1", "artifact-1", "kms-key-1", []byte("dek-1"))
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cache.Put("tenant-2", "artifact-1", "kms-key-2", []byte("dek-2"))
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// Clear
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cache.Clear()
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// All entries should be gone
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_, ok := cache.Get("tenant-1", "artifact-1", "kms-key-1", false)
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if ok {
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t.Error("All entries should be cleared")
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}
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_, ok = cache.Get("tenant-2", "artifact-1", "kms-key-2", false)
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if ok {
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t.Error("All entries should be cleared")
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}
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}
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// TestDEKCache_Stats tests cache statistics.
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func TestDEKCache_Stats(t *testing.T) {
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config := kms.DefaultCacheConfig()
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cache := kms.NewDEKCache(config)
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defer cache.Clear()
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stats := cache.Stats()
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if stats.Size != 0 {
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t.Errorf("Initial size should be 0, got %d", stats.Size)
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}
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if stats.MaxSize != config.MaxEntries {
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t.Errorf("MaxSize should be %d, got %d", config.MaxEntries, stats.MaxSize)
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}
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if stats.TTL != config.TTL {
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t.Errorf("TTL should be %v, got %v", config.TTL, stats.TTL)
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}
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if stats.GraceWindow != config.GraceWindow {
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t.Errorf("GraceWindow should be %v, got %v", config.GraceWindow, stats.GraceWindow)
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}
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// Add entry
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cache.Put("tenant-1", "artifact-1", "kms-key-1", []byte("dek-1"))
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stats = cache.Stats()
|
||||
if stats.Size != 1 {
|
||||
t.Errorf("Size should be 1 after put, got %d", stats.Size)
|
||||
}
|
||||
}
|
||||
|
||||
// TestDEKCache_EmptyDEK tests that empty DEK is rejected.
|
||||
func TestDEKCache_EmptyDEK(t *testing.T) {
|
||||
cache := kms.NewDEKCache(kms.DefaultCacheConfig())
|
||||
defer cache.Clear()
|
||||
|
||||
err := cache.Put("tenant-1", "artifact-1", "kms-key-1", []byte{})
|
||||
if err == nil {
|
||||
t.Error("Should reject empty DEK")
|
||||
}
|
||||
}
|
||||
|
||||
// TestDEKCache_Isolation tests that DEKs are isolated between tenants.
|
||||
func TestDEKCache_Isolation(t *testing.T) {
|
||||
cache := kms.NewDEKCache(kms.DefaultCacheConfig())
|
||||
defer cache.Clear()
|
||||
|
||||
// Same artifact ID, different tenants
|
||||
cache.Put("tenant-1", "shared-artifact", "kms-key-1", []byte("dek-for-tenant-1"))
|
||||
cache.Put("tenant-2", "shared-artifact", "kms-key-2", []byte("dek-for-tenant-2"))
|
||||
|
||||
// Each tenant should get their own DEK
|
||||
d1, ok := cache.Get("tenant-1", "shared-artifact", "kms-key-1", false)
|
||||
if !ok || string(d1) != "dek-for-tenant-1" {
|
||||
t.Error("tenant-1 should get their own DEK")
|
||||
}
|
||||
|
||||
d2, ok := cache.Get("tenant-2", "shared-artifact", "kms-key-2", false)
|
||||
if !ok || string(d2) != "dek-for-tenant-2" {
|
||||
t.Error("tenant-2 should get their own DEK")
|
||||
}
|
||||
}
|
||||
330
tests/unit/crypto/kms/protocol_test.go
Normal file
330
tests/unit/crypto/kms/protocol_test.go
Normal file
|
|
@ -0,0 +1,330 @@
|
|||
package kms_test
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"encoding/binary"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/jfraeys/fetch_ml/internal/api"
|
||||
"github.com/jfraeys/fetch_ml/internal/crypto"
|
||||
"github.com/jfraeys/fetch_ml/internal/crypto/kms"
|
||||
)
|
||||
|
||||
func TestProtocolSerialization(t *testing.T) {
|
||||
// Test success packet
|
||||
successPacket := api.NewSuccessPacket("Operation completed successfully")
|
||||
data, err := successPacket.Serialize()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to serialize success packet: %v", err)
|
||||
}
|
||||
|
||||
// Verify packet type
|
||||
if len(data) < 1 || data[0] != api.PacketTypeSuccess {
|
||||
t.Errorf("Expected packet type %d, got %d", api.PacketTypeSuccess, data[0])
|
||||
}
|
||||
|
||||
// Verify timestamp is present (9 bytes minimum: 1 type + 8 timestamp)
|
||||
if len(data) < 9 {
|
||||
t.Errorf("Expected at least 9 bytes, got %d", len(data))
|
||||
}
|
||||
|
||||
// Test error packet
|
||||
errorPacket := api.NewErrorPacket(api.ErrorCodeAuthenticationFailed, "Auth failed", "Invalid API key")
|
||||
data, err = errorPacket.Serialize()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to serialize error packet: %v", err)
|
||||
}
|
||||
|
||||
if len(data) < 1 || data[0] != api.PacketTypeError {
|
||||
t.Errorf("Expected packet type %d, got %d", api.PacketTypeError, data[0])
|
||||
}
|
||||
|
||||
// Test progress packet
|
||||
progressPacket := api.NewProgressPacket(api.ProgressTypePercentage, 75, 100, "Processing...")
|
||||
data, err = progressPacket.Serialize()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to serialize progress packet: %v", err)
|
||||
}
|
||||
|
||||
if len(data) < 1 || data[0] != api.PacketTypeProgress {
|
||||
t.Errorf("Expected packet type %d, got %d", api.PacketTypeProgress, data[0])
|
||||
}
|
||||
|
||||
// Test status packet
|
||||
statusPacket := api.NewStatusPacket(`{"workers":1,"queued":0}`)
|
||||
data, err = statusPacket.Serialize()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to serialize status packet: %v", err)
|
||||
}
|
||||
|
||||
if len(data) < 1 || data[0] != api.PacketTypeStatus {
|
||||
t.Errorf("Expected packet type %d, got %d", api.PacketTypeStatus, data[0])
|
||||
}
|
||||
}
|
||||
|
||||
func TestErrorMessageMapping(t *testing.T) {
|
||||
tests := map[byte]string{
|
||||
api.ErrorCodeUnknownError: "Unknown error occurred",
|
||||
api.ErrorCodeAuthenticationFailed: "Authentication failed",
|
||||
api.ErrorCodeJobNotFound: "Job not found",
|
||||
api.ErrorCodeServerOverloaded: "Server is overloaded",
|
||||
}
|
||||
|
||||
for code, expected := range tests {
|
||||
actual := api.GetErrorMessage(code)
|
||||
if actual != expected {
|
||||
t.Errorf("Expected error message '%s' for code %d, got '%s'", expected, code, actual)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestLogLevelMapping(t *testing.T) {
|
||||
tests := map[byte]string{
|
||||
api.LogLevelDebug: "DEBUG",
|
||||
api.LogLevelInfo: "INFO",
|
||||
api.LogLevelWarn: "WARN",
|
||||
api.LogLevelError: "ERROR",
|
||||
}
|
||||
|
||||
for level, expected := range tests {
|
||||
actual := api.GetLogLevelName(level)
|
||||
if actual != expected {
|
||||
t.Errorf("Expected log level '%s' for level %d, got '%s'", expected, level, actual)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestTimestampConsistency(t *testing.T) {
|
||||
before := time.Now().Unix()
|
||||
|
||||
packet := api.NewSuccessPacket("Test message")
|
||||
data, err := packet.Serialize()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to serialize: %v", err)
|
||||
}
|
||||
|
||||
after := time.Now().Unix()
|
||||
|
||||
// Extract timestamp (bytes 1-8, big-endian)
|
||||
if len(data) < 9 {
|
||||
t.Fatalf("Packet too short: %d bytes", len(data))
|
||||
}
|
||||
|
||||
timestamp := binary.BigEndian.Uint64(data[1:9])
|
||||
|
||||
if timestamp < uint64(before) || timestamp > uint64(after) {
|
||||
t.Errorf("Timestamp %d not in expected range [%d, %d]", timestamp, before, after)
|
||||
}
|
||||
}
|
||||
|
||||
// TestKMSProtocol_EncryptDecrypt tests the full KMS encryption/decryption protocol.
|
||||
func TestKMSProtocol_EncryptDecrypt(t *testing.T) {
|
||||
// Create memory provider for testing
|
||||
provider := kms.NewMemoryProvider()
|
||||
defer provider.Close()
|
||||
|
||||
cache := kms.NewDEKCache(kms.DefaultCacheConfig())
|
||||
defer cache.Clear()
|
||||
|
||||
config := kms.Config{
|
||||
Provider: kms.ProviderTypeMemory,
|
||||
Cache: kms.DefaultCacheConfig(),
|
||||
}
|
||||
|
||||
tkm := crypto.NewTenantKeyManager(provider, cache, config)
|
||||
|
||||
// Provision tenant
|
||||
hierarchy, err := tkm.ProvisionTenant("protocol-test-tenant")
|
||||
if err != nil {
|
||||
t.Fatalf("ProvisionTenant failed: %v", err)
|
||||
}
|
||||
|
||||
// Test data - simulate artifact data
|
||||
plaintext := []byte("sensitive model weights and training data")
|
||||
|
||||
// Encrypt
|
||||
encrypted, err := tkm.EncryptArtifact("protocol-test-tenant", "model-v1", hierarchy.KMSKeyID, plaintext)
|
||||
if err != nil {
|
||||
t.Fatalf("EncryptArtifact failed: %v", err)
|
||||
}
|
||||
|
||||
// Verify encrypted structure
|
||||
if encrypted.Ciphertext == "" {
|
||||
t.Error("Ciphertext should not be empty")
|
||||
}
|
||||
if encrypted.DEK == nil {
|
||||
t.Error("DEK should not be nil")
|
||||
}
|
||||
if encrypted.KMSKeyID != hierarchy.KMSKeyID {
|
||||
t.Error("KMSKeyID should match")
|
||||
}
|
||||
if encrypted.Algorithm != "AES-256-GCM" {
|
||||
t.Errorf("Algorithm should be AES-256-GCM, got %s", encrypted.Algorithm)
|
||||
}
|
||||
|
||||
// Decrypt
|
||||
decrypted, err := tkm.DecryptArtifact(encrypted, hierarchy.KMSKeyID)
|
||||
if err != nil {
|
||||
t.Fatalf("DecryptArtifact failed: %v", err)
|
||||
}
|
||||
|
||||
// Verify round-trip
|
||||
if !bytes.Equal(decrypted, plaintext) {
|
||||
t.Errorf("Decrypted data doesn't match: got %s, want %s", decrypted, plaintext)
|
||||
}
|
||||
}
|
||||
|
||||
// TestKMSProtocol_MultiTenantIsolation verifies tenants cannot decrypt each other's data.
|
||||
func TestKMSProtocol_MultiTenantIsolation(t *testing.T) {
|
||||
provider := kms.NewMemoryProvider()
|
||||
defer provider.Close()
|
||||
|
||||
cache := kms.NewDEKCache(kms.DefaultCacheConfig())
|
||||
defer cache.Clear()
|
||||
|
||||
config := kms.Config{
|
||||
Provider: kms.ProviderTypeMemory,
|
||||
Cache: kms.DefaultCacheConfig(),
|
||||
}
|
||||
|
||||
tkm := crypto.NewTenantKeyManager(provider, cache, config)
|
||||
|
||||
// Provision two tenants
|
||||
tenant1, err := tkm.ProvisionTenant("tenant-1")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to provision tenant-1: %v", err)
|
||||
}
|
||||
|
||||
tenant2, err := tkm.ProvisionTenant("tenant-2")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to provision tenant-2: %v", err)
|
||||
}
|
||||
|
||||
// Encrypt data for tenant-1
|
||||
plaintext := []byte("tenant-1 secret data")
|
||||
encrypted, err := tkm.EncryptArtifact("tenant-1", "artifact-1", tenant1.KMSKeyID, plaintext)
|
||||
if err != nil {
|
||||
t.Fatalf("Encrypt failed: %v", err)
|
||||
}
|
||||
|
||||
// Attempt to decrypt with tenant-2's key - should fail
|
||||
_, err = tkm.DecryptArtifact(encrypted, tenant2.KMSKeyID)
|
||||
if err == nil {
|
||||
t.Error("Tenant-2 should not be able to decrypt tenant-1's data (expected error)")
|
||||
}
|
||||
|
||||
// Tenant-1 should still be able to decrypt
|
||||
decrypted, err := tkm.DecryptArtifact(encrypted, tenant1.KMSKeyID)
|
||||
if err != nil {
|
||||
t.Fatalf("Tenant-1 decrypt failed: %v", err)
|
||||
}
|
||||
|
||||
if !bytes.Equal(decrypted, plaintext) {
|
||||
t.Error("Tenant-1 should decrypt their own data correctly")
|
||||
}
|
||||
}
|
||||
|
||||
// TestKMSProtocol_CacheHit verifies cached DEKs work correctly.
|
||||
func TestKMSProtocol_CacheHit(t *testing.T) {
|
||||
provider := kms.NewMemoryProvider()
|
||||
defer provider.Close()
|
||||
|
||||
cache := kms.NewDEKCache(kms.DefaultCacheConfig())
|
||||
defer cache.Clear()
|
||||
|
||||
config := kms.Config{
|
||||
Provider: kms.ProviderTypeMemory,
|
||||
Cache: kms.DefaultCacheConfig(),
|
||||
}
|
||||
|
||||
tkm := crypto.NewTenantKeyManager(provider, cache, config)
|
||||
|
||||
hierarchy, _ := tkm.ProvisionTenant("cache-test")
|
||||
|
||||
plaintext := []byte("test data for caching")
|
||||
|
||||
// First encrypt
|
||||
encrypted, _ := tkm.EncryptArtifact("cache-test", "cached-artifact", hierarchy.KMSKeyID, plaintext)
|
||||
|
||||
// Decrypt multiple times - should hit cache
|
||||
for i := 0; i < 3; i++ {
|
||||
decrypted, err := tkm.DecryptArtifact(encrypted, hierarchy.KMSKeyID)
|
||||
if err != nil {
|
||||
t.Fatalf("Decrypt %d failed: %v", i, err)
|
||||
}
|
||||
if !bytes.Equal(decrypted, plaintext) {
|
||||
t.Errorf("Decrypt %d: data mismatch", i)
|
||||
}
|
||||
}
|
||||
|
||||
// Verify cache has entries
|
||||
stats := cache.Stats()
|
||||
if stats.Size == 0 {
|
||||
t.Error("Cache should have entries after operations")
|
||||
}
|
||||
}
|
||||
|
||||
// TestKMSProtocol_KeyRotation tests key rotation protocol.
|
||||
func TestKMSProtocol_KeyRotation(t *testing.T) {
|
||||
provider := kms.NewMemoryProvider()
|
||||
defer provider.Close()
|
||||
|
||||
cache := kms.NewDEKCache(kms.DefaultCacheConfig())
|
||||
defer cache.Clear()
|
||||
|
||||
config := kms.Config{
|
||||
Provider: kms.ProviderTypeMemory,
|
||||
Cache: kms.DefaultCacheConfig(),
|
||||
}
|
||||
|
||||
tkm := crypto.NewTenantKeyManager(provider, cache, config)
|
||||
|
||||
// Provision tenant
|
||||
hierarchy, _ := tkm.ProvisionTenant("rotation-test")
|
||||
oldKeyID := hierarchy.KMSKeyID
|
||||
|
||||
// Rotate key
|
||||
newHierarchy, err := tkm.RotateTenantKey("rotation-test", hierarchy)
|
||||
if err != nil {
|
||||
t.Fatalf("Key rotation failed: %v", err)
|
||||
}
|
||||
|
||||
if newHierarchy.KMSKeyID == oldKeyID {
|
||||
t.Error("New key should have different ID after rotation")
|
||||
}
|
||||
|
||||
// Cache should be flushed after rotation
|
||||
stats := cache.Stats()
|
||||
if stats.Size != 0 {
|
||||
t.Error("Cache should be flushed after key rotation")
|
||||
}
|
||||
|
||||
// Encrypt with new key
|
||||
plaintext2 := []byte("data encrypted with new key")
|
||||
encrypted2, _ := tkm.EncryptArtifact("rotation-test", "post-rotation", newHierarchy.KMSKeyID, plaintext2)
|
||||
|
||||
// Decrypt with new key
|
||||
decrypted2, err := tkm.DecryptArtifact(encrypted2, newHierarchy.KMSKeyID)
|
||||
if err != nil {
|
||||
t.Fatalf("Decrypt with new key failed: %v", err)
|
||||
}
|
||||
|
||||
if !bytes.Equal(decrypted2, plaintext2) {
|
||||
t.Error("Data encrypted with new key should decrypt correctly")
|
||||
}
|
||||
}
|
||||
|
||||
// TestKMSProvider_HealthCheck tests health check protocol.
|
||||
func TestKMSProvider_HealthCheck(t *testing.T) {
|
||||
provider := kms.NewMemoryProvider()
|
||||
defer provider.Close()
|
||||
|
||||
ctx := context.Background()
|
||||
|
||||
// Memory provider should always be healthy
|
||||
if err := provider.HealthCheck(ctx); err != nil {
|
||||
t.Errorf("Memory provider health check failed: %v", err)
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue