Enhance tor-family e2e test to validate RSA and ED25519 relay identity fixes

fixes #5

README.md

@@ -58,6 +58,8 @@ resource "local_sensitive_file" "family_key" {
 resource "tor_relay_identity_rsa" "bridge" {}
 
 resource "tor_relay_identity_ed25519" "bridge" {}
+# Note: Ed25519 keys are available in both PEM format (private_key_pem, public_key_pem) 
+# and Tor's binary format (private_key_tor, public_key_tor)
 
 resource "tor_obfs4_state" "bridge" {
   rsa_identity_private_key     = tor_relay_identity_rsa.bridge.private_key_pem
@@ -86,11 +88,17 @@ output "rsa_fingerprint_hashed" {
 }
 
 output "ed25519_identity_pem" {
-  description = "Ed25519 identity private key for bridge configuration"
+  description = "Ed25519 identity private key for bridge configuration (PEM format)"
   value       = tor_relay_identity_ed25519.bridge.private_key_pem
   sensitive   = true
 }
 
+output "ed25519_identity_tor" {
+  description = "Ed25519 identity private key in Tor's binary format (base64 encoded)"
+  value       = tor_relay_identity_ed25519.bridge.private_key_tor
+  sensitive   = true
+}
+
 output "obfs4_state_json" {
   description = "Complete obfs4 state for bridge runtime"
   value       = tor_obfs4_state.bridge.state_json

docs/resources/relay_identity_ed25519.md

@@ -52,5 +52,7 @@ output "public_key_fingerprint_sha256" {
 - `algorithm` (String) Name of the algorithm used when generating the private key (always 'Ed25519')
 - `id` (String) Unique identifier based on public key fingerprint
 - `private_key_pem` (String, Sensitive) Private key data in PEM (RFC 1421) format
-- `public_key_fingerprint_sha256` (String) SHA256 fingerprint of the public key in hex format
+- `private_key_tor` (String, Sensitive) Private key data in Tor's binary format, base64 encoded
+- `public_key_fingerprint_sha256` (String) Base64 encoded public key bytes (32 bytes) without padding, used as the Tor Ed25519 fingerprint
 - `public_key_pem` (String) Public key data in PEM (RFC 1421) format
+- `public_key_tor` (String) Public key data in Tor's binary format, base64 encoded

e2e-tests/obfs4/main.tf

@@ -26,6 +26,13 @@ resource "tor_obfs4_state" "bridge" {
   ed25519_identity_private_key = tor_relay_identity_ed25519.bridge.private_key_pem
 }
 
+# Alternative: obfs4 state could also use Tor format keys (demonstration only)
+# resource "tor_obfs4_state" "bridge_alt" {
+#   rsa_identity_private_key     = tor_relay_identity_rsa.bridge.private_key_pem
+#   ed25519_identity_private_key = tor_relay_identity_ed25519.bridge.private_key_pem
+#   # Note: private_key_tor could be used here as well for ed25519 keys
+# }
+
 # Generate bridge line for client distribution
 data "tor_obfs4_bridge_line" "bridge" {
   ip_address                = "203.0.113.1"
@@ -46,11 +53,27 @@ output "rsa_fingerprint_sha256" {
   value       = tor_relay_identity_rsa.bridge.public_key_fingerprint_sha256
 }
 
+output "rsa_fingerprint_sha1_hashed" {
+  description = "RSA identity fingerprint (SHA1) hashed for privacy"
+  value       = tor_relay_identity_rsa.bridge.public_key_fingerprint_sha1_hashed
+}
+
 output "ed25519_fingerprint_sha256" {
   description = "Ed25519 identity fingerprint (SHA256)"
   value       = tor_relay_identity_ed25519.bridge.public_key_fingerprint_sha256
 }
 
+output "ed25519_private_key_tor" {
+  description = "Ed25519 private key in Tor binary format (base64)"
+  value       = tor_relay_identity_ed25519.bridge.private_key_tor
+  sensitive   = true
+}
+
+output "ed25519_public_key_tor" {
+  description = "Ed25519 public key in Tor binary format (base64)"
+  value       = tor_relay_identity_ed25519.bridge.public_key_tor
+}
+
 output "obfs4_certificate" {
   description = "obfs4 certificate for bridge line"
   value       = tor_obfs4_state.bridge.certificate

e2e-tests/tor-family/main.tf

@@ -17,6 +17,10 @@ resource "tor_family_identity" "this" {
   family_name = "MyFamily"
 }
 
+resource "tor_relay_identity_rsa" "this" {}
+
+resource "tor_relay_identity_ed25519" "this" {}
+
 resource "local_sensitive_file" "family_key" {
   content_base64 = tor_family_identity.this.secret_key
   filename       = "./data/keys/MyKey.secret_family_key"
@@ -42,3 +46,34 @@ output "family_id" {
   description = "Family ID for the bridge"
   value       = tor_family_identity.this.id
 }
+
+output "rsa_fingerprint_sha1" {
+  description = "RSA identity fingerprint (SHA1) - should be uppercase hex"
+  value       = tor_relay_identity_rsa.this.public_key_fingerprint_sha1
+}
+
+output "rsa_fingerprint_sha1_hashed" {
+  description = "RSA identity fingerprint (SHA1) hashed for privacy monitoring"
+  value       = tor_relay_identity_rsa.this.public_key_fingerprint_sha1_hashed
+}
+
+output "rsa_fingerprint_sha256" {
+  description = "RSA identity fingerprint (SHA256)"
+  value       = tor_relay_identity_rsa.this.public_key_fingerprint_sha256
+}
+
+output "ed25519_fingerprint_sha256" {
+  description = "ED25519 identity fingerprint (base64 encoded public key bytes)"
+  value       = tor_relay_identity_ed25519.this.public_key_fingerprint_sha256
+}
+
+output "ed25519_private_key_tor" {
+  description = "ED25519 private key in Tor binary format (base64 encoded)"
+  value       = tor_relay_identity_ed25519.this.private_key_tor
+  sensitive   = true
+}
+
+output "ed25519_public_key_tor" {
+  description = "ED25519 public key in Tor binary format (base64 encoded)"
+  value       = tor_relay_identity_ed25519.this.public_key_tor
+}

flake.nix

@@ -8,6 +8,7 @@
     let
       supportedSystems = [
         "x86_64-linux"
+        "aarch64-darwin"
       ];
       forEachSupportedSystem =
         f:

internal/provider/tor_relay_identity_ed25519_resource.go

@@ -7,10 +7,11 @@ import (
 	"context"
 	"crypto/ed25519"
 	"crypto/rand"
-	"crypto/sha256"
 	"crypto/x509"
+	"encoding/base64"
 	"encoding/pem"
 	"fmt"
+	"strings"
 
 	"github.com/hashicorp/terraform-plugin-framework/resource"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
@@ -33,6 +34,8 @@ type TorRelayIdentityEd25519ResourceModel struct {
 	Algorithm                  types.String `tfsdk:"algorithm"`
 	PrivateKeyPem              types.String `tfsdk:"private_key_pem"`
 	PublicKeyPem               types.String `tfsdk:"public_key_pem"`
+	PrivateKeyTor              types.String `tfsdk:"private_key_tor"`
+	PublicKeyTor               types.String `tfsdk:"public_key_tor"`
 	PublicKeyFingerprintSha256 types.String `tfsdk:"public_key_fingerprint_sha256"`
 }
 
@@ -74,9 +77,24 @@ func (r *TorRelayIdentityEd25519Resource) Schema(ctx context.Context, req resour
 					stringplanmodifier.UseStateForUnknown(),
 				},
 			},
+			"private_key_tor": schema.StringAttribute{
+				Computed:            true,
+				Sensitive:           true,
+				MarkdownDescription: "Private key data in Tor's binary format, base64 encoded",
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.UseStateForUnknown(),
+				},
+			},
+			"public_key_tor": schema.StringAttribute{
+				Computed:            true,
+				MarkdownDescription: "Public key data in Tor's binary format, base64 encoded",
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.UseStateForUnknown(),
+				},
+			},
 			"public_key_fingerprint_sha256": schema.StringAttribute{
 				Computed:            true,
-				MarkdownDescription: "SHA256 fingerprint of the public key in hex format",
+				MarkdownDescription: "Base64 encoded public key bytes (32 bytes) without padding, used as the Tor Ed25519 fingerprint",
 				PlanModifiers: []planmodifier.String{
 					stringplanmodifier.UseStateForUnknown(),
 				},
@@ -125,12 +143,19 @@ func (r *TorRelayIdentityEd25519Resource) Create(ctx context.Context, req resour
 	}
 	data.PublicKeyPem = types.StringValue(publicKeyPem)
 
-	// Generate SHA256 fingerprint
-	sha256Fingerprint := r.generateSha256Fingerprint(publicKey)
-	data.PublicKeyFingerprintSha256 = types.StringValue(sha256Fingerprint)
+	// Encode keys in Tor format
+	privateKeyTor := r.encodeTorPrivateKey(privateKey)
+	data.PrivateKeyTor = types.StringValue(privateKeyTor)
 
-	// Generate ID from SHA256 fingerprint
-	data.Id = types.StringValue(fmt.Sprintf("ed25519-%s", sha256Fingerprint[:16]))
+	publicKeyTor := r.encodeTorPublicKey(publicKey)
+	data.PublicKeyTor = types.StringValue(publicKeyTor)
+
+	// Generate Tor Ed25519 fingerprint (base64 encoded public key bytes without padding)
+	ed25519Fingerprint := r.generateEd25519Fingerprint(publicKey)
+	data.PublicKeyFingerprintSha256 = types.StringValue(ed25519Fingerprint)
+
+	// Generate ID from Ed25519 fingerprint
+	data.Id = types.StringValue(fmt.Sprintf("ed25519-%s", ed25519Fingerprint[:16]))
 
 	tflog.Trace(ctx, "created tor relay identity Ed25519 resource")
 
@@ -181,8 +206,37 @@ func (r *TorRelayIdentityEd25519Resource) encodePublicKeyPEM(publicKey ed25519.P
 	return string(publicKeyPem), nil
 }
 
-func (r *TorRelayIdentityEd25519Resource) generateSha256Fingerprint(publicKey ed25519.PublicKey) string {
-	publicKeyBytes, _ := x509.MarshalPKIXPublicKey(publicKey)
-	sha256Sum := sha256.Sum256(publicKeyBytes)
-	return fmt.Sprintf("%X", sha256Sum)
+func (r *TorRelayIdentityEd25519Resource) generateEd25519Fingerprint(publicKey ed25519.PublicKey) string {
+	fingerprint := base64.StdEncoding.EncodeToString(publicKey)
+	return strings.TrimRight(fingerprint, "=")
+}
+
+func (r *TorRelayIdentityEd25519Resource) encodeTorPrivateKey(privateKey ed25519.PrivateKey) string {
+	// Tor Ed25519 private key format:
+	// "== ed25519v1-secret: type0 ==" + null bytes + 64 bytes key data
+	header := "== ed25519v1-secret: type0 =="
+	
+	// Create 96-byte buffer: 32 bytes header + null padding + 64 bytes key
+	torKey := make([]byte, 96)
+	copy(torKey, header)
+	
+	// Copy the private key (64 bytes) starting at offset 32
+	copy(torKey[32:], privateKey)
+	
+	return base64.StdEncoding.EncodeToString(torKey)
+}
+
+func (r *TorRelayIdentityEd25519Resource) encodeTorPublicKey(publicKey ed25519.PublicKey) string {
+	// Tor Ed25519 public key format:
+	// "== ed25519v1-public: type0 ==" + null bytes + 32 bytes key data
+	header := "== ed25519v1-public: type0 =="
+	
+	// Create 64-byte buffer: 32 bytes header + null padding + 32 bytes key
+	torKey := make([]byte, 64)
+	copy(torKey, header)
+	
+	// Copy the public key (32 bytes) starting at offset 32
+	copy(torKey[32:], publicKey)
+	
+	return base64.StdEncoding.EncodeToString(torKey)
 }

internal/provider/tor_relay_identity_ed25519_resource_test.go

@@ -4,6 +4,7 @@
 package provider
 
 import (
+	"encoding/base64"
 	"regexp"
 	"testing"
 
@@ -27,13 +28,67 @@ func TestAccTorRelayIdentityEd25519Resource(t *testing.T) {
 					// Verify PEM format
 					resource.TestMatchResourceAttr("tor_relay_identity_ed25519.test", "private_key_pem", regexp.MustCompile(`^-----BEGIN PRIVATE KEY-----`)),
 					resource.TestMatchResourceAttr("tor_relay_identity_ed25519.test", "public_key_pem", regexp.MustCompile(`^-----BEGIN PUBLIC KEY-----`)),
-					resource.TestMatchResourceAttr("tor_relay_identity_ed25519.test", "public_key_fingerprint_sha256", regexp.MustCompile(`^[0-9A-F]{64}$`)),
+					resource.TestMatchResourceAttr("tor_relay_identity_ed25519.test", "public_key_fingerprint_sha256", regexp.MustCompile(`^[A-Za-z0-9+/]{43}$`)),
 				),
 			},
 		},
 	})
 }
 
+func TestTorEd25519FingerprintGeneration(t *testing.T) {
+	testPubKeyBase64 := "PT0gZWQyNTUxOXYxLXB1YmxpYzogdHlwZTAgPT0AAAB6UEqfT3OvqdpNfw/rbOucsc5AXRUw4lcy/SaWxruoYA=="
+	expectedFingerprint := "elBKn09zr6naTX8P62zrnLHOQF0VMOJXMv0mlsa7qGA"
+	
+	pubKeyBytes, err := base64.StdEncoding.DecodeString(testPubKeyBase64)
+	if err != nil {
+		t.Fatalf("Failed to decode test public key: %v", err)
+	}
+	
+	actualFingerprint := base64.StdEncoding.EncodeToString(pubKeyBytes[32:])
+	actualFingerprint = regexp.MustCompile(`=*$`).ReplaceAllString(actualFingerprint, "")
+	
+	if actualFingerprint != expectedFingerprint {
+		t.Errorf("Expected fingerprint %s, got %s", expectedFingerprint, actualFingerprint)
+	}
+}
+
+func TestAccTorRelayIdentityEd25519TorFormat(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		PreCheck:                 func() { testAccPreCheck(t) },
+		ProtoV6ProviderFactories: testAccProtoV6ProviderFactories,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccTorRelayIdentityEd25519ResourceConfig,
+				Check: resource.ComposeAggregateTestCheckFunc(
+					resource.TestCheckResourceAttrSet("tor_relay_identity_ed25519.test", "private_key_tor"),
+					resource.TestCheckResourceAttrSet("tor_relay_identity_ed25519.test", "public_key_tor"),
+					resource.TestMatchResourceAttr("tor_relay_identity_ed25519.test", "private_key_tor", regexp.MustCompile(`^[A-Za-z0-9+/]+=*$`)),
+					resource.TestMatchResourceAttr("tor_relay_identity_ed25519.test", "public_key_tor", regexp.MustCompile(`^[A-Za-z0-9+/]+=*$`)),
+				),
+			},
+		},
+	})
+}
+
+func TestTorEd25519FormatEncoding(t *testing.T) {
+	testPubKeyBase64 := "PT0gZWQyNTUxOXYxLXB1YmxpYzogdHlwZTAgPT0AAAB6UEqfT3OvqdpNfw/rbOucsc5AXRUw4lcy/SaWxruoYA=="
+	
+	pubKeyBytes, err := base64.StdEncoding.DecodeString(testPubKeyBase64)
+	if err != nil {
+		t.Fatalf("Failed to decode test public key: %v", err)
+	}
+	
+	if len(pubKeyBytes) != 64 {
+		t.Errorf("Expected public key to be 64 bytes, got %d", len(pubKeyBytes))
+	}
+	
+	expectedHeader := "== ed25519v1-public: type0 =="
+	actualHeader := string(pubKeyBytes[:len(expectedHeader)])
+	if actualHeader != expectedHeader {
+		t.Errorf("Expected header %q, got %q", expectedHeader, actualHeader)
+	}
+}
+
 const testAccTorRelayIdentityEd25519ResourceConfig = `
 resource "tor_relay_identity_ed25519" "test" {}
 `