Initial commit

server/internal/security/security_test.go

@@ -0,0 +1,79 @@
+package security
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+)
+
+func TestCipherRoundTripAndAADBinding(t *testing.T) {
+	cipher, err := NewCipher(bytes.Repeat([]byte{1}, 32), bytes.Repeat([]byte{2}, 32))
+	if err != nil {
+		t.Fatal(err)
+	}
+	ciphertext, nonce, err := cipher.Encrypt("+8613812345678", []byte("ticket:project-a:phone"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	got, err := cipher.Decrypt(ciphertext, nonce, []byte("ticket:project-a:phone"))
+	if err != nil || got != "+8613812345678" {
+		t.Fatalf("round trip got %q, %v", got, err)
+	}
+	if _, err := cipher.Decrypt(ciphertext, nonce, []byte("ticket:project-b:phone")); err == nil {
+		t.Fatal("expected AAD mismatch to fail")
+	}
+}
+
+func TestCipherUsesUniqueNoncesAndStableHMAC(t *testing.T) {
+	cipher, _ := NewCipher(bytes.Repeat([]byte{1}, 32), bytes.Repeat([]byte{2}, 32))
+	one, nonceOne, _ := cipher.Encrypt("13812345678", nil)
+	two, nonceTwo, _ := cipher.Encrypt("13812345678", nil)
+	if bytes.Equal(nonceOne, nonceTwo) || bytes.Equal(one, two) {
+		t.Fatal("expected randomized encryption")
+	}
+	if cipher.Digest("13812345678") != cipher.Digest("13812345678") {
+		t.Fatal("expected stable HMAC digest")
+	}
+}
+
+func TestNormalizePhone(t *testing.T) {
+	got, err := NormalizePhone("+86 (138) 1234-5678")
+	if err != nil || got != "+8613812345678" {
+		t.Fatalf("got %q, %v", got, err)
+	}
+	for _, invalid := range []string{"123", "+01234567", "138-ABC-0000", strings.Repeat("1", 16)} {
+		if _, err := NormalizePhone(invalid); err == nil {
+			t.Fatalf("expected %q to fail", invalid)
+		}
+	}
+}
+
+func TestTokenHasHighEntropyAndHashes(t *testing.T) {
+	one, err := GenerateToken()
+	if err != nil {
+		t.Fatal(err)
+	}
+	two, _ := GenerateToken()
+	if one == two || len(one) < 40 {
+		t.Fatalf("unexpected tokens %q and %q", one, two)
+	}
+	if HashToken(one) == HashToken(two) || len(HashToken(one)) != 64 {
+		t.Fatal("unexpected token hashes")
+	}
+}
+
+func TestPasswordHash(t *testing.T) {
+	hash, err := HashPassword("correct horse battery staple")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !VerifyPassword(hash, "correct horse battery staple") || VerifyPassword(hash, "wrong password") {
+		t.Fatal("password verification mismatch")
+	}
+	if _, err := HashPassword("short"); err == nil {
+		t.Fatal("expected short password rejection")
+	}
+	if _, err := HashPassword("XQK123456"); err != nil {
+		t.Fatal("expected a nine-character password to satisfy the API policy")
+	}
+}