doc: add play ground demo for v2.3.6

cryptor/crypto.go

@@ -174,7 +174,7 @@ func AesCtrCrypt(data, key []byte) []byte {
 
 // AesCtrEncrypt encrypt data with key use AES CTR algorithm
 // len(key) should be 16, 24 or 32.
-// Play: todo
+// Play: https://go.dev/play/p/x6pjPAvThRz
 func AesCtrEncrypt(data, key []byte) []byte {
 	if !isAesKeyLengthValid(len(key)) {
 		panic("aes: invalid key length (must be 16, 24, or 32 bytes)")
@@ -199,7 +199,7 @@ func AesCtrEncrypt(data, key []byte) []byte {
 
 // AesCtrDecrypt decrypt data with key use AES CTR algorithm
 // len(key) should be 16, 24 or 32.
-// Play: todo
+// Play: https://go.dev/play/p/x6pjPAvThRz
 func AesCtrDecrypt(encrypted, key []byte) []byte {
 	if !isAesKeyLengthValid(len(key)) {
 		panic("aes: invalid key length (must be 16, 24, or 32 bytes)")
@@ -507,7 +507,7 @@ func DesCtrCrypt(data, key []byte) []byte {
 
 // DesCtrEncrypt encrypt data with key use DES CTR algorithm
 // len(key) should be 8.
-// Play: todo
+// Play: https://go.dev/play/p/S6p_WHCgH1d
 func DesCtrEncrypt(data, key []byte) []byte {
 	if len(key) != 8 {
 		panic("des: key length must be 8 bytes")
@@ -534,7 +534,7 @@ func DesCtrEncrypt(data, key []byte) []byte {
 
 // DesCtrDecrypt decrypt data with key use DES CTR algorithm
 // len(key) should be 8.
-// Play: todo
+// Play: https://go.dev/play/p/S6p_WHCgH1d
 func DesCtrDecrypt(encrypted, key []byte) []byte {
 	if len(key) != 8 {
 		panic("des: key length must be 8 bytes")

cryptor/crypto_example_test.go

@@ -74,6 +74,32 @@ func ExampleAesCtrCrypt() {
 	// hello
 }
 
+func ExampleAesCtrEncrypt() {
+	data := "hello"
+	key := "abcdefghijklmnop"
+
+	enCrypt := AesCtrEncrypt([]byte(data), []byte(key))
+	deCrypt := AesCtrDecrypt(enCrypt, []byte(key))
+
+	fmt.Println(string(deCrypt))
+
+	// Output:
+	// hello
+}
+
+func ExampleAesCtrDecrypt() {
+	data := "hello"
+	key := "abcdefghijklmnop"
+
+	enCrypt := AesCtrEncrypt([]byte(data), []byte(key))
+	deCrypt := AesCtrDecrypt(enCrypt, []byte(key))
+
+	fmt.Println(string(deCrypt))
+
+	// Output:
+	// hello
+}
+
 func ExampleAesCfbEncrypt() {
 	data := "hello"
 	key := "abcdefghijklmnop"
@@ -227,6 +253,19 @@ func ExampleDesCtrCrypt() {
 	// hello
 }
 
+func ExampleDesCtrDecrypt() {
+	data := "hello"
+	key := "abcdefgh"
+
+	enCrypt := DesCtrEncrypt([]byte(data), []byte(key))
+	deCrypt := DesCtrDecrypt(enCrypt, []byte(key))
+
+	fmt.Println(string(deCrypt))
+
+	// Output:
+	// hello
+}
+
 func ExampleDesCfbEncrypt() {
 	data := "hello"
 	key := "abcdefgh"

cryptor/rsa_private_example.pem

@@ -1,51 +1,51 @@
 -----BEGIN rsa private key-----
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-XgtvuB04wth011c5W/yXA+A3Ob73Sr2+zyxF870tOp3rNTWsYLvCOjf+JdjgM3Az
-NuFxE4NdMLvXDf7CIXSb3X9rj3qM769Lz6XXbRBVbO0HxGyqLTPPmSWV61jQuUTW
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 -----END rsa private key-----

cryptor/rsa_public_example.pem

@@ -1,14 +1,14 @@
 -----BEGIN rsa public key-----
-MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAw6Q11wDtWHZiyQbv+Xzn
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 -----END rsa public key-----