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https://github.com/syntrex-lab/gomcp.git
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Release prep: 54 engines, self-hosted signatures, i18n, dashboard updates
This commit is contained in:
DmitrL-dev
parent
694e32be26
commit
41cbfd6e0a
178 changed files with 36008 additions and 399 deletions
311
internal/infrastructure/zerotrust/zerotrust.go
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311
internal/infrastructure/zerotrust/zerotrust.go
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// Package zerotrust implements SEC-008 Zero-Trust Internal Networking.
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//
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// Provides mTLS with SPIFFE identity for all internal SOC communication:
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// - Certificate generation and rotation (24h default)
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// - SPIFFE workload identity (spiffe://sentinel.syntrex.io/soc/*)
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// - TLS 1.3 only with strong cipher suites
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// - Client certificate validation (mutual TLS)
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// - Connection authorization based on SPIFFE ID allowlists
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//
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// Usage:
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//
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// zt := zerotrust.New("soc-ingest", spiffeID)
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// tlsConfig := zt.ServerTLSConfig()
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// // or
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// tlsConfig := zt.ClientTLSConfig(targetSPIFFEID)
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package zerotrust
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import (
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/tls"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"fmt"
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"log/slog"
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"math/big"
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"net/url"
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"sync"
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"time"
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)
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const (
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// DefaultCertLifetime is the certificate rotation period.
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DefaultCertLifetime = 24 * time.Hour
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// TrustDomain is the SPIFFE trust domain.
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TrustDomain = "sentinel.xn--80akacl3adqr.xn--p1acf"
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)
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// SPIFFEID is a SPIFFE workload identity.
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type SPIFFEID string
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// Well-known SPIFFE IDs for SOC components.
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const (
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SPIFFEIngest SPIFFEID = "spiffe://sentinel.xn--80akacl3adqr.xn--p1acf/soc/ingest"
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SPIFFECorrelate SPIFFEID = "spiffe://sentinel.xn--80akacl3adqr.xn--p1acf/soc/correlate"
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SPIFFERespond SPIFFEID = "spiffe://sentinel.xn--80akacl3adqr.xn--p1acf/soc/respond"
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SPIFFEImmune SPIFFEID = "spiffe://sentinel.xn--80akacl3adqr.xn--p1acf/sensor/immune"
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SPIFFESidecar SPIFFEID = "spiffe://sentinel.xn--80akacl3adqr.xn--p1acf/sensor/sidecar"
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SPIFFEShield SPIFFEID = "spiffe://sentinel.xn--80akacl3adqr.xn--p1acf/sensor/shield"
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SPIFFEDashboard SPIFFEID = "spiffe://sentinel.xn--80akacl3adqr.xn--p1acf/dashboard"
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)
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// AuthzPolicy defines which SPIFFE IDs can connect to a service.
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var AuthzPolicy = map[SPIFFEID][]SPIFFEID{
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SPIFFEIngest: {SPIFFEImmune, SPIFFEShield, SPIFFESidecar, SPIFFEDashboard},
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SPIFFECorrelate: {SPIFFEIngest},
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SPIFFERespond: {SPIFFECorrelate},
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}
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// Identity holds a service's mTLS identity.
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type Identity struct {
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mu sync.RWMutex
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spiffeID SPIFFEID
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serviceName string
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cert *tls.Certificate
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caCert *x509.Certificate
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caKey *ecdsa.PrivateKey
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caPool *x509.CertPool
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allowedCallers []SPIFFEID
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logger *slog.Logger
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stats IdentityStats
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}
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// IdentityStats tracks mTLS metrics.
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type IdentityStats struct {
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mu sync.Mutex
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CertRotations int64 `json:"cert_rotations"`
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ConnectionsAccepted int64 `json:"connections_accepted"`
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ConnectionsDenied int64 `json:"connections_denied"`
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LastRotation time.Time `json:"last_rotation"`
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CertExpiry time.Time `json:"cert_expiry"`
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StartedAt time.Time `json:"started_at"`
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}
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// NewIdentity creates a new zero-trust mTLS identity.
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func NewIdentity(serviceName string, spiffeID SPIFFEID) (*Identity, error) {
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logger := slog.Default().With("component", "sec-008-zerotrust", "service", serviceName)
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// Generate CA for this trust domain (in production: use SPIRE).
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caKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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return nil, fmt.Errorf("zerotrust: generate CA key: %w", err)
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}
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caTemplate := &x509.Certificate{
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SerialNumber: big.NewInt(1),
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Subject: pkix.Name{
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Organization: []string{"SENTINEL AI SOC"},
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CommonName: "SENTINEL Trust CA",
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},
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NotBefore: time.Now(),
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NotAfter: time.Now().Add(365 * 24 * time.Hour),
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IsCA: true,
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KeyUsage: x509.KeyUsageCertSign | x509.KeyUsageCRLSign,
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BasicConstraintsValid: true,
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}
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caCertDER, err := x509.CreateCertificate(rand.Reader, caTemplate, caTemplate, &caKey.PublicKey, caKey)
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if err != nil {
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return nil, fmt.Errorf("zerotrust: create CA cert: %w", err)
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}
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caCert, err := x509.ParseCertificate(caCertDER)
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if err != nil {
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return nil, fmt.Errorf("zerotrust: parse CA cert: %w", err)
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}
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caPool := x509.NewCertPool()
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caPool.AddCert(caCert)
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// Lookup authorization policy.
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allowed := AuthzPolicy[spiffeID]
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identity := &Identity{
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spiffeID: spiffeID,
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serviceName: serviceName,
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caCert: caCert,
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caKey: caKey,
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caPool: caPool,
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allowedCallers: allowed,
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logger: logger,
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stats: IdentityStats{
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StartedAt: time.Now(),
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},
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}
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// Generate initial workload certificate.
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if err := identity.rotateCert(); err != nil {
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return nil, fmt.Errorf("zerotrust: initial cert: %w", err)
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}
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logger.Info("zero-trust identity initialized",
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"spiffe_id", spiffeID,
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"allowed_callers", len(allowed),
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"cert_expiry", identity.stats.CertExpiry,
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)
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return identity, nil
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}
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// ServerTLSConfig returns a TLS config for accepting mTLS connections.
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func (id *Identity) ServerTLSConfig() *tls.Config {
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return &tls.Config{
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GetCertificate: func(*tls.ClientHelloInfo) (*tls.Certificate, error) {
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id.mu.RLock()
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defer id.mu.RUnlock()
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return id.cert, nil
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},
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ClientAuth: tls.RequireAndVerifyClientCert,
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ClientCAs: id.caPool,
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MinVersion: tls.VersionTLS13,
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CipherSuites: []uint16{
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tls.TLS_AES_256_GCM_SHA384,
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tls.TLS_CHACHA20_POLY1305_SHA256,
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},
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VerifyPeerCertificate: id.verifyPeerCert,
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}
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}
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// ClientTLSConfig returns a TLS config for connecting to a peer.
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func (id *Identity) ClientTLSConfig() *tls.Config {
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return &tls.Config{
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GetClientCertificate: func(*tls.CertificateRequestInfo) (*tls.Certificate, error) {
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id.mu.RLock()
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defer id.mu.RUnlock()
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return id.cert, nil
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},
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RootCAs: id.caPool,
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MinVersion: tls.VersionTLS13,
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}
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}
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// RotateCert generates a new workload certificate.
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func (id *Identity) RotateCert() error {
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return id.rotateCert()
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}
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// SPIFFEID returns the identity's SPIFFE ID.
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func (id *Identity) SPIFFEID() SPIFFEID {
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return id.spiffeID
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}
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// CertPEM returns the current certificate in PEM format.
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func (id *Identity) CertPEM() []byte {
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id.mu.RLock()
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defer id.mu.RUnlock()
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if id.cert == nil || len(id.cert.Certificate) == 0 {
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return nil
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}
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return pem.EncodeToMemory(&pem.Block{
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Type: "CERTIFICATE",
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Bytes: id.cert.Certificate[0],
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})
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}
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// Stats returns identity metrics.
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func (id *Identity) Stats() IdentityStats {
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id.stats.mu.Lock()
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defer id.stats.mu.Unlock()
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return IdentityStats{
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CertRotations: id.stats.CertRotations,
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ConnectionsAccepted: id.stats.ConnectionsAccepted,
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ConnectionsDenied: id.stats.ConnectionsDenied,
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LastRotation: id.stats.LastRotation,
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CertExpiry: id.stats.CertExpiry,
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StartedAt: id.stats.StartedAt,
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}
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}
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// --- Internal ---
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func (id *Identity) rotateCert() error {
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key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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return fmt.Errorf("generate key: %w", err)
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}
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spiffeURL, _ := url.Parse(string(id.spiffeID))
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template := &x509.Certificate{
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SerialNumber: big.NewInt(time.Now().UnixNano()),
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Subject: pkix.Name{
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Organization: []string{"SENTINEL AI SOC"},
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CommonName: id.serviceName,
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},
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URIs: []*url.URL{spiffeURL},
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NotBefore: time.Now(),
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NotAfter: time.Now().Add(DefaultCertLifetime),
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KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment,
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ExtKeyUsage: []x509.ExtKeyUsage{
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x509.ExtKeyUsageServerAuth,
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x509.ExtKeyUsageClientAuth,
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},
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}
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certDER, err := x509.CreateCertificate(rand.Reader, template, id.caCert, &key.PublicKey, id.caKey)
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if err != nil {
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return fmt.Errorf("create cert: %w", err)
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}
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cert := &tls.Certificate{
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Certificate: [][]byte{certDER},
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PrivateKey: key,
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}
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id.mu.Lock()
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id.cert = cert
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id.mu.Unlock()
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id.stats.mu.Lock()
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id.stats.CertRotations++
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id.stats.LastRotation = time.Now()
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id.stats.CertExpiry = template.NotAfter
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id.stats.mu.Unlock()
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id.logger.Info("certificate rotated",
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"expiry", template.NotAfter,
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"rotations", id.stats.CertRotations,
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)
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return nil
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}
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func (id *Identity) verifyPeerCert(rawCerts [][]byte, _ [][]*x509.Certificate) error {
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if len(rawCerts) == 0 {
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id.stats.mu.Lock()
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id.stats.ConnectionsDenied++
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id.stats.mu.Unlock()
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return fmt.Errorf("no client certificate")
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}
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cert, err := x509.ParseCertificate(rawCerts[0])
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if err != nil {
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id.stats.mu.Lock()
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id.stats.ConnectionsDenied++
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id.stats.mu.Unlock()
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return fmt.Errorf("invalid client certificate: %w", err)
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}
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// Check SPIFFE ID in URI SAN.
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for _, uri := range cert.URIs {
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callerID := SPIFFEID(uri.String())
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for _, allowed := range id.allowedCallers {
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if callerID == allowed {
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id.stats.mu.Lock()
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id.stats.ConnectionsAccepted++
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id.stats.mu.Unlock()
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return nil
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}
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}
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}
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id.stats.mu.Lock()
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id.stats.ConnectionsDenied++
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id.stats.mu.Unlock()
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return fmt.Errorf("SPIFFE ID not authorized")
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}
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109
internal/infrastructure/zerotrust/zerotrust_test.go
Normal file
109
internal/infrastructure/zerotrust/zerotrust_test.go
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@ -0,0 +1,109 @@
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package zerotrust
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import (
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"testing"
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)
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func TestNewIdentity(t *testing.T) {
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id, err := NewIdentity("soc-ingest", SPIFFEIngest)
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if err != nil {
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t.Fatalf("NewIdentity: %v", err)
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}
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if id.SPIFFEID() != SPIFFEIngest {
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t.Errorf("spiffe_id = %s, want %s", id.SPIFFEID(), SPIFFEIngest)
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}
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stats := id.Stats()
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if stats.CertRotations != 1 {
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t.Errorf("cert_rotations = %d, want 1", stats.CertRotations)
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}
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}
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func TestCertPEM(t *testing.T) {
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id, err := NewIdentity("soc-ingest", SPIFFEIngest)
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if err != nil {
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t.Fatalf("NewIdentity: %v", err)
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}
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pem := id.CertPEM()
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if len(pem) == 0 {
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t.Error("CertPEM is empty")
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}
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}
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func TestServerTLSConfig(t *testing.T) {
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id, err := NewIdentity("soc-ingest", SPIFFEIngest)
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if err != nil {
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t.Fatalf("NewIdentity: %v", err)
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}
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cfg := id.ServerTLSConfig()
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if cfg.MinVersion != 0x0304 { // TLS 1.3
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t.Errorf("min version = %x, want 0x0304 (TLS 1.3)", cfg.MinVersion)
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}
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if cfg.ClientAuth != 4 { // RequireAndVerifyClientCert
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t.Errorf("client_auth = %d, want 4", cfg.ClientAuth)
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}
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if cfg.ClientCAs == nil {
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t.Error("ClientCAs should not be nil")
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}
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}
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func TestClientTLSConfig(t *testing.T) {
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id, err := NewIdentity("soc-correlate", SPIFFECorrelate)
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if err != nil {
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t.Fatalf("NewIdentity: %v", err)
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}
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cfg := id.ClientTLSConfig()
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if cfg.MinVersion != 0x0304 {
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t.Errorf("min version = %x, want TLS 1.3", cfg.MinVersion)
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}
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if cfg.RootCAs == nil {
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t.Error("RootCAs should not be nil")
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}
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}
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func TestCertRotation(t *testing.T) {
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id, err := NewIdentity("soc-respond", SPIFFERespond)
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if err != nil {
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t.Fatalf("NewIdentity: %v", err)
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}
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pem1 := string(id.CertPEM())
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if err := id.RotateCert(); err != nil {
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t.Fatalf("RotateCert: %v", err)
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}
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pem2 := string(id.CertPEM())
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if pem1 == pem2 {
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t.Error("cert should change after rotation")
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}
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stats := id.Stats()
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if stats.CertRotations != 2 {
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t.Errorf("rotations = %d, want 2", stats.CertRotations)
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}
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}
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func TestAuthzPolicy(t *testing.T) {
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// Check ingest accepts immune, shield, sidecar, dashboard.
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allowed := AuthzPolicy[SPIFFEIngest]
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if len(allowed) != 4 {
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t.Errorf("ingest allowed_callers = %d, want 4", len(allowed))
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}
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// Correlate only accepts ingest.
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allowed = AuthzPolicy[SPIFFECorrelate]
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if len(allowed) != 1 || allowed[0] != SPIFFEIngest {
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t.Errorf("correlate allowed = %v, want [ingest]", allowed)
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}
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// Respond only accepts correlate.
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allowed = AuthzPolicy[SPIFFERespond]
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if len(allowed) != 1 || allowed[0] != SPIFFECorrelate {
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t.Errorf("respond allowed = %v, want [correlate]", allowed)
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}
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}
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