diff --git a/.gitignore b/.gitignore
index 385ad28..a4d5b55 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,7 +8,7 @@ fileutil/*.link
 fileutil/unzip/*
 fileutil/tempdir/*
 slice/testdata/*
-cryptor/*.pem
+# cryptor/*.pem
 test
 docs/node_modules
 docs/.vitepress/cache
diff --git a/cryptor/crypto_example_test.go b/cryptor/crypto_example_test.go
index 1240d24..aa7fcf3 100644
--- a/cryptor/crypto_example_test.go
+++ b/cryptor/crypto_example_test.go
@@ -285,7 +285,7 @@ func ExampleDesOfbDecrypt() {
 
 func ExampleGenerateRsaKey() {
 	// Create ras private and public pem file
-	err := GenerateRsaKey(4096, "rsa_private.pem", "rsa_public.pem")
+	err := GenerateRsaKey(4096, "rsa_private_example.pem", "rsa_public_example.pem")
 	if err != nil {
 		return
 	}
@@ -298,14 +298,14 @@ func ExampleGenerateRsaKey() {
 
 func ExampleRsaEncrypt() {
 	// Create ras private and public pem file
-	err := GenerateRsaKey(4096, "rsa_private.pem", "rsa_public.pem")
+	err := GenerateRsaKey(4096, "rsa_private_example.pem", "rsa_public_example.pem")
 	if err != nil {
 		return
 	}
 
 	data := []byte("hello")
-	encrypted := RsaEncrypt(data, "rsa_public.pem")
-	decrypted := RsaDecrypt(encrypted, "rsa_private.pem")
+	encrypted := RsaEncrypt(data, "rsa_public_example.pem")
+	decrypted := RsaDecrypt(encrypted, "rsa_private_example.pem")
 
 	fmt.Println(string(decrypted))
 
@@ -315,14 +315,14 @@ func ExampleRsaEncrypt() {
 
 func ExampleRsaDecrypt() {
 	// Create ras private and public pem file
-	err := GenerateRsaKey(4096, "rsa_private.pem", "rsa_public.pem")
+	err := GenerateRsaKey(4096, "rsa_private_example.pem", "rsa_public_example.pem")
 	if err != nil {
 		return
 	}
 
 	data := []byte("hello")
-	encrypted := RsaEncrypt(data, "rsa_public.pem")
-	decrypted := RsaDecrypt(encrypted, "rsa_private.pem")
+	encrypted := RsaEncrypt(data, "rsa_public_example.pem")
+	decrypted := RsaDecrypt(encrypted, "rsa_private_example.pem")
 
 	fmt.Println(string(decrypted))
 
@@ -542,8 +542,8 @@ func ExampleRsaSign() {
 	data := []byte("This is a test data for RSA signing")
 	hash := crypto.SHA256
 
-	privateKey := "./rsa_private.pem"
-	publicKey := "./rsa_public.pem"
+	privateKey := "./rsa_private_example.pem"
+	publicKey := "./rsa_public_example.pem"
 
 	signature, err := RsaSign(hash, data, privateKey)
 	if err != nil {
@@ -565,8 +565,8 @@ func ExampleRsaVerifySign() {
 	data := []byte("This is a test data for RSA signing")
 	hash := crypto.SHA256
 
-	privateKey := "./rsa_private.pem"
-	publicKey := "./rsa_public.pem"
+	privateKey := "./rsa_private_example.pem"
+	publicKey := "./rsa_public_example.pem"
 
 	signature, err := RsaSign(hash, data, privateKey)
 	if err != nil {
diff --git a/cryptor/crypto_test.go b/cryptor/crypto_test.go
index 2da1a8a..70b7b2c 100644
--- a/cryptor/crypto_test.go
+++ b/cryptor/crypto_test.go
@@ -140,13 +140,13 @@ func TestDesOfbEncrypt(t *testing.T) {
 func TestRsaEncrypt(t *testing.T) {
 	t.Parallel()
 
-	err := GenerateRsaKey(4096, "rsa_private.pem", "rsa_public.pem")
+	err := GenerateRsaKey(4096, "./rsa_private_example.pem", "./rsa_public_example.pem")
 	if err != nil {
 		t.FailNow()
 	}
 	data := []byte("hello world")
-	encrypted := RsaEncrypt(data, "rsa_public.pem")
-	decrypted := RsaDecrypt(encrypted, "rsa_private.pem")
+	encrypted := RsaEncrypt(data, "./rsa_public_example.pem")
+	decrypted := RsaDecrypt(encrypted, "./rsa_private_example.pem")
 
 	assert := internal.NewAssert(t, "TestRsaEncrypt")
 	assert.Equal(string(data), string(decrypted))
@@ -190,8 +190,8 @@ func TestRsaSignAndVerify(t *testing.T) {
 	hash := crypto.SHA256
 
 	t.Run("RSA Sign and Verify", func(t *testing.T) {
-		privateKey := "./rsa_private.pem"
-		publicKey := "./rsa_public.pem"
+		privateKey := "./rsa_private_example.pem"
+		publicKey := "./rsa_public_example.pem"
 
 		signature, err := RsaSign(hash, data, privateKey)
 		if err != nil {
@@ -205,7 +205,7 @@ func TestRsaSignAndVerify(t *testing.T) {
 	})
 
 	t.Run("RSA Sign and Verify Invalid Signature", func(t *testing.T) {
-		publicKey := "./rsa_public.pem"
+		publicKey := "./rsa_public_example.pem"
 
 		invalidSig := []byte("InvalidSignature")
 
@@ -216,8 +216,8 @@ func TestRsaSignAndVerify(t *testing.T) {
 	})
 
 	t.Run("RSA Sign and Verify With Different Hash", func(t *testing.T) {
-		publicKey := "./rsa_public.pem"
-		privateKey := "./rsa_private.pem"
+		publicKey := "./rsa_public_example.pem"
+		privateKey := "./rsa_private_example.pem"
 		hashSign := crypto.SHA256
 		hashVerify := crypto.SHA512
 
diff --git a/cryptor/rsa_private_example.pem b/cryptor/rsa_private_example.pem
new file mode 100644
index 0000000..f7f6840
--- /dev/null
+++ b/cryptor/rsa_private_example.pem
@@ -0,0 +1,51 @@
+-----BEGIN rsa private key-----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+SCmll/NT91udR4i0bvjinDBZJCgqo6AiiIKp53yUNuyAWFI08rVDXn1BXaete9UL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+-----END rsa private key-----
diff --git a/cryptor/rsa_public_example.pem b/cryptor/rsa_public_example.pem
new file mode 100644
index 0000000..4d2e150
--- /dev/null
+++ b/cryptor/rsa_public_example.pem
@@ -0,0 +1,14 @@
+-----BEGIN rsa public key-----
+MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAs+rfCwwvBb9JplwDAaNt
+pEPCm1DoS8PkqzwSSxfA7JHSMYdYUMq92vbSqEKomNgyksaGIiqDHop+9pHjYI1A
+ftd6mbZJwRtQxo+5eYGh88FzPqemmNubZk7SxGq0MEz1XmZ9viQyp3GxAJjeSdAG
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+RlqUzwiC75w92JH1nQPXqEqaaEx0izdHUmFF33cgGb6gw5tJePzOmYs8KLJcOhfJ
+QcqjW4MjCfnaw4tB/cpi3zYKzDoC7mzwitrkBO1MG11luzR1m9uMfWczL2hK2zMH
+I51vayC1d1T0gc56vS/SAdicl5OqcD6oc6Dmym3rguF/pauTIOrvGtipeYk/Mbb4
+qj2CI33QFTZc3G55yHVB6vDWIpMSWF60HHHqv7Ens4MIPIev0WS893vsNscg4Ph3
+QxXDNjOc3kEK17TnDGXmL7C+Ykfq9brm32IrOMZ4KR3NJ+aO83yLewPoQAy8QCC3
+2b1O3c1nAgSY9sIwJV8ikAdNDBhLnkXFrYE2ZFl/Kl5HXd0LCz/BQu3Ey0RsZfXI
+pD7KUcdNq3QRloTATntE9U0CAwEAAQ==
+-----END rsa public key-----