Add hashed fingerprint functionality to RSA relay identity keys

fixes #3

.gitignore

@@ -1,6 +1,6 @@
+.*
 *.dll
 *.exe
-.DS_Store
 example.tf
 terraform.tfplan
 terraform.tfstate
@@ -15,12 +15,9 @@ website/node_modules
 .vagrant/
 *.backup
 ./*.tfstate
-.terraform/
 *.log
 *.bak
 *~
-.*.swp
-.idea
 *.iml
 *.test
 *.iml
@@ -35,10 +32,11 @@ website/vendor
 *.winfile eol=crlf
 terraform-provider-tor
 dev/
-CLAUDE.md
+*.md
+!README.md
+!CHANGELOG.md
+!CONTRIBUTING.md
 extra
-.direnv
-.claude
 e2e-tests/**/*tfstate*
 e2e-tests/**/providers
 e2e-tests/**/.terraform.lock.hcl

README.md

@@ -80,6 +80,11 @@ output "rsa_identity_pem" {
   sensitive   = true
 }
 
+output "rsa_fingerprint_hashed" {
+  description = "Hashed RSA fingerprint for privacy in monitoring systems"
+  value       = tor_relay_identity_rsa.bridge.public_key_fingerprint_sha1_hashed
+}
+
 output "ed25519_identity_pem" {
   description = "Ed25519 identity private key for bridge configuration"
   value       = tor_relay_identity_ed25519.bridge.private_key_pem

docs/resources/relay_identity_rsa.md

@@ -49,6 +49,11 @@ output "public_key_fingerprint_sha256" {
   description = "SHA256 fingerprint of the RSA public key"
   value       = tor_relay_identity_rsa.example.public_key_fingerprint_sha256
 }
+
+output "public_key_fingerprint_sha1_hashed" {
+  description = "Hashed SHA1 fingerprint of the RSA public key for privacy in monitoring systems"
+  value       = tor_relay_identity_rsa.example.public_key_fingerprint_sha1_hashed
+}
 ```
 
 <!-- schema generated by tfplugindocs -->
@@ -60,5 +65,6 @@ output "public_key_fingerprint_sha256" {
 - `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_sha1` (String) SHA1 fingerprint of the public key in hex format
+- `public_key_fingerprint_sha1_hashed` (String) SHA1 hash of the binary form of the SHA1 fingerprint in hex format
 - `public_key_fingerprint_sha256` (String) SHA256 fingerprint of the public key in hex format
 - `public_key_pem` (String) Public key data in PEM (RFC 1421) format

examples/resources/tor_relay_identity_rsa/resource.tf

@@ -34,3 +34,8 @@ output "public_key_fingerprint_sha256" {
   description = "SHA256 fingerprint of the RSA public key"
   value       = tor_relay_identity_rsa.example.public_key_fingerprint_sha256
 }
+
+output "public_key_fingerprint_sha1_hashed" {
+  description = "Hashed SHA1 fingerprint of the RSA public key for privacy in monitoring systems"
+  value       = tor_relay_identity_rsa.example.public_key_fingerprint_sha1_hashed
+}

internal/provider/tor_obfs4_bridge_line_data_source_test.go

@@ -31,9 +31,8 @@ func TestTorObfs4BridgeLineDataSource(t *testing.T) {
 					// Check computed values are generated
 					resource.TestCheckResourceAttrSet("data.tor_obfs4_bridge_line.test", "bridge_line"),
 
-					// Check bridge line format
 					resource.TestMatchResourceAttr("data.tor_obfs4_bridge_line.test", "bridge_line",
-						regexp.MustCompile(`^Bridge obfs4 192\.0\.2\.1:443 [0-9a-f]{40} cert=[A-Za-z0-9+/]+ iat-mode=[0-2]$`)),
+						regexp.MustCompile(`^Bridge obfs4 192\.0\.2\.1:443 [0-9A-F]{40} cert=[A-Za-z0-9+/]+ iat-mode=[0-2]$`)),
 
 					// Check that input values are used correctly
 					resource.TestCheckResourceAttrPair("data.tor_obfs4_bridge_line.test", "identity_fingerprint_sha1", "tor_relay_identity_rsa.test", "public_key_fingerprint_sha1"),

internal/provider/tor_obfs4_state_resource.go

@@ -406,11 +406,7 @@ func (r *TorObfs4StateResource) deriveNodeIdFromRsaKey(rsaPrivateKeyPem string)
 		return nil, fmt.Errorf("failed to parse RSA private key: %w", err)
 	}
 
-	// Extract the public key and encode it
-	publicKeyBytes, err := x509.MarshalPKIXPublicKey(&privateKey.PublicKey)
-	if err != nil {
-		return nil, fmt.Errorf("failed to marshal public key: %w", err)
-	}
+	publicKeyBytes := x509.MarshalPKCS1PublicKey(&privateKey.PublicKey)
 
 	// Generate SHA1 hash of public key (this is the relay fingerprint/node ID)
 	hash := sha1.Sum(publicKeyBytes)

internal/provider/tor_relay_identity_ed25519_resource.go

@@ -184,5 +184,5 @@ func (r *TorRelayIdentityEd25519Resource) encodePublicKeyPEM(publicKey ed25519.P
 func (r *TorRelayIdentityEd25519Resource) generateSha256Fingerprint(publicKey ed25519.PublicKey) string {
 	publicKeyBytes, _ := x509.MarshalPKIXPublicKey(publicKey)
 	sha256Sum := sha256.Sum256(publicKeyBytes)
-	return fmt.Sprintf("%x", sha256Sum)
+	return fmt.Sprintf("%X", sha256Sum)
 }

internal/provider/tor_relay_identity_ed25519_resource_test.go

@@ -27,8 +27,7 @@ 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-----`)),
-					// Verify fingerprint format (64 hex characters for SHA256)
-					resource.TestMatchResourceAttr("tor_relay_identity_ed25519.test", "public_key_fingerprint_sha256", regexp.MustCompile(`^[0-9a-f]{64}$`)),
+					resource.TestMatchResourceAttr("tor_relay_identity_ed25519.test", "public_key_fingerprint_sha256", regexp.MustCompile(`^[0-9A-F]{64}$`)),
 				),
 			},
 		},

internal/provider/tor_relay_identity_rsa_resource.go

@@ -10,6 +10,7 @@ import (
 	"crypto/sha1"
 	"crypto/sha256"
 	"crypto/x509"
+	"encoding/hex"
 	"encoding/pem"
 	"fmt"
 
@@ -36,6 +37,7 @@ type TorRelayIdentityRsaResourceModel struct {
 	PublicKeyPem                    types.String `tfsdk:"public_key_pem"`
 	PublicKeyFingerprintSha1        types.String `tfsdk:"public_key_fingerprint_sha1"`
 	PublicKeyFingerprintSha256      types.String `tfsdk:"public_key_fingerprint_sha256"`
+	PublicKeyFingerprintSha1Hashed  types.String `tfsdk:"public_key_fingerprint_sha1_hashed"`
 }
 
 func (r *TorRelayIdentityRsaResource) Metadata(ctx context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
@@ -90,6 +92,13 @@ func (r *TorRelayIdentityRsaResource) Schema(ctx context.Context, req resource.S
 					stringplanmodifier.UseStateForUnknown(),
 				},
 			},
+			"public_key_fingerprint_sha1_hashed": schema.StringAttribute{
+				Computed:            true,
+				MarkdownDescription: "SHA1 hash of the binary form of the SHA1 fingerprint in hex format",
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.UseStateForUnknown(),
+				},
+			},
 		},
 	}
 }
@@ -146,6 +155,15 @@ func (r *TorRelayIdentityRsaResource) Create(ctx context.Context, req resource.C
 	data.PublicKeyFingerprintSha1 = types.StringValue(sha1Fingerprint)
 	data.PublicKeyFingerprintSha256 = types.StringValue(sha256Fingerprint)
 
+	// Generate hashed fingerprint
+	hashedFingerprint, err := r.generateHashedFingerprint(sha1Fingerprint)
+	if err != nil {
+		resp.Diagnostics.AddError("Hashed Fingerprint Generation Error",
+			fmt.Sprintf("Unable to generate hashed fingerprint: %s", err))
+		return
+	}
+	data.PublicKeyFingerprintSha1Hashed = types.StringValue(hashedFingerprint)
+
 	// Generate ID from SHA1 fingerprint
 	data.Id = types.StringValue(fmt.Sprintf("rsa-%s", sha1Fingerprint[:16]))
 
@@ -196,16 +214,25 @@ func (r *TorRelayIdentityRsaResource) encodePublicKeyPEM(publicKey *rsa.PublicKe
 }
 
 func (r *TorRelayIdentityRsaResource) generateFingerprints(publicKey *rsa.PublicKey) (string, string, error) {
-	publicKeyBytes, err := x509.MarshalPKIXPublicKey(publicKey)
-	if err != nil {
-		return "", "", err
-	}
+	publicKeyBytes := x509.MarshalPKCS1PublicKey(publicKey)
 
 	sha1Sum := sha1.Sum(publicKeyBytes)
 	sha256Sum := sha256.Sum256(publicKeyBytes)
 
-	sha1Fingerprint := fmt.Sprintf("%x", sha1Sum)
-	sha256Fingerprint := fmt.Sprintf("%x", sha256Sum)
+	sha1Fingerprint := fmt.Sprintf("%X", sha1Sum)
+	sha256Fingerprint := fmt.Sprintf("%X", sha256Sum)
 
 	return sha1Fingerprint, sha256Fingerprint, nil
 }
+
+func (r *TorRelayIdentityRsaResource) generateHashedFingerprint(fingerprint string) (string, error) {
+	fingerprintBytes, err := hex.DecodeString(fingerprint)
+	if err != nil {
+		return "", fmt.Errorf("failed to decode fingerprint hex: %w", err)
+	}
+
+	hashedSum := sha1.Sum(fingerprintBytes)
+	hashedFingerprint := fmt.Sprintf("%X", hashedSum)
+
+	return hashedFingerprint, nil
+}

internal/provider/tor_relay_identity_rsa_resource_test.go

@@ -4,6 +4,8 @@
 package provider
 
 import (
+	"crypto/x509"
+	"encoding/pem"
 	"regexp"
 	"testing"
 
@@ -25,18 +27,76 @@ func TestAccTorRelayIdentityRsaResource(t *testing.T) {
 					resource.TestCheckResourceAttrSet("tor_relay_identity_rsa.test", "public_key_pem"),
 					resource.TestCheckResourceAttrSet("tor_relay_identity_rsa.test", "public_key_fingerprint_sha1"),
 					resource.TestCheckResourceAttrSet("tor_relay_identity_rsa.test", "public_key_fingerprint_sha256"),
+					resource.TestCheckResourceAttrSet("tor_relay_identity_rsa.test", "public_key_fingerprint_sha1_hashed"),
 					// Verify PEM format
 					resource.TestMatchResourceAttr("tor_relay_identity_rsa.test", "private_key_pem", regexp.MustCompile(`^-----BEGIN RSA PRIVATE KEY-----`)),
 					resource.TestMatchResourceAttr("tor_relay_identity_rsa.test", "public_key_pem", regexp.MustCompile(`^-----BEGIN PUBLIC KEY-----`)),
-					// Verify fingerprint formats (hex strings)
-					resource.TestMatchResourceAttr("tor_relay_identity_rsa.test", "public_key_fingerprint_sha1", regexp.MustCompile(`^[0-9a-f]{40}$`)),
-					resource.TestMatchResourceAttr("tor_relay_identity_rsa.test", "public_key_fingerprint_sha256", regexp.MustCompile(`^[0-9a-f]{64}$`)),
+					resource.TestMatchResourceAttr("tor_relay_identity_rsa.test", "public_key_fingerprint_sha1", regexp.MustCompile(`^[0-9A-F]{40}$`)),
+					resource.TestMatchResourceAttr("tor_relay_identity_rsa.test", "public_key_fingerprint_sha256", regexp.MustCompile(`^[0-9A-F]{64}$`)),
+					resource.TestMatchResourceAttr("tor_relay_identity_rsa.test", "public_key_fingerprint_sha1_hashed", regexp.MustCompile(`^[0-9A-F]{40}$`)),
 				),
 			},
 		},
 	})
 }
 
+func TestRsaFingerprintGeneration(t *testing.T) {
+	testRsaPrivateKeyPem := `-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----`
+
+	expectedSha1Fingerprint := "DA5CEC632A9A544394403BD533E1A7BDE2F26EDD"
+
+	block, _ := pem.Decode([]byte(testRsaPrivateKeyPem))
+	if block == nil {
+		t.Fatal("failed to decode PEM block")
+	}
+
+	privateKey, err := x509.ParsePKCS1PrivateKey(block.Bytes)
+	if err != nil {
+		t.Fatalf("failed to parse RSA private key: %v", err)
+	}
+
+	resource := &TorRelayIdentityRsaResource{}
+	sha1Fingerprint, _, err := resource.generateFingerprints(&privateKey.PublicKey)
+	if err != nil {
+		t.Fatalf("failed to generate fingerprint: %v", err)
+	}
+
+	if sha1Fingerprint != expectedSha1Fingerprint {
+		t.Errorf("SHA1 fingerprint mismatch:\nExpected: %s\nActual:   %s",
+			expectedSha1Fingerprint, sha1Fingerprint)
+	}
+}
+
+func TestHashedFingerprintGeneration(t *testing.T) {
+	testFingerprint := "DA5CEC632A9A544394403BD533E1A7BDE2F26EDD"
+	expectedHashedFingerprint := "922650D27357BE307B3B322A5ABC3E9585AF776F"
+
+	resource := &TorRelayIdentityRsaResource{}
+	hashedFingerprint, err := resource.generateHashedFingerprint(testFingerprint)
+	if err != nil {
+		t.Fatalf("failed to generate hashed fingerprint: %v", err)
+	}
+
+	if hashedFingerprint != expectedHashedFingerprint {
+		t.Errorf("Hashed fingerprint mismatch:\nExpected: %s\nActual:   %s",
+			expectedHashedFingerprint, hashedFingerprint)
+	}
+}
+
 const testAccTorRelayIdentityRsaResourceConfig = `
 resource "tor_relay_identity_rsa" "test" {}
 `