Update README.md

README.md

@@ -63,11 +63,71 @@ A keygen for 010Editor
 
 ### 1.2 VersionLicense Key
 
-  * TODO
+  `VersionLicense` key is also generated by 8-bytes-long data. To make it clear, I use
+
+  ```cpp
+  unsigned char data[8];
+  ```
+
+  to represent the 8-bytes-long data, too.
+
+  `VersionLicense` key can only be used for specified version or the older. And it does not has time limit.
+
+   * __data[4] ~ data[7]__ are __Checksum__ and calculated by `CalculateChecksum` function where `IsRegistrationVersion = true`, `a3 = MajorVersion >= 2 ? 0 : MajorVersion`. `LicenseCount` and `utf8_username` are based on your input.
+
+   * __data[3]__ must be `0x9C`. It represents the type of key.
+
+   * __data[1] ~ data[2]__ are based on __EncodedLicenseCount__, __data[7]__ and __data[5]__. __EncodedLicenseCount__ can be calculated by `EncodeLicenseCount` function where `DesiredLicenseCount` is based on your input. 
+
+     ```cpp
+     data[1] = EncodedLicenseCount.bytes[1] ^ data[7];
+     data[2] = EncodedLicenseCount.bytes[0] ^ data[5];
+     ```
+
+   * __data[0]__ is based on `MajorVersion` and __data[6]__.
+
+     ```cpp
+     data[0] = MajorVersion;
+     data[0] ^= 0xA7;
+     data[0] -= 0x3D;
+     data[0] ^= 0x18;
+     data[0] ^= Password.data[6];
+     ```
+
+  Finally, the `VersionLicense` key is the hex string of `data[8]` where 4 hex chars consist of a block and each block is joined by `"-"`(hyphen). 
 
 ### 1.3 TimeLicense Key
 
-  * TODO
+  `TimeLicense` key is generated by 10-bytes-long data which is different to `Evaluation` and `VersionLicense` key. To make it clear, I use
+
+  ```cpp
+  unsigned char data[10];
+  ```
+
+  to represent the 10-bytes-long data.
+
+  `TimeLicense` key can be used for any kind of version. But it has time limit.
+
+  * __data[4] ~ data[7]__ are __Checksum__ and calculated by `CalculateChecksum` function where `IsRegistrationVersion = true`, `a3 = DaystampOfExpiration`. `DaystampOfExpiration`, `LicenseCount` and `utf8_username` are based on your input.
+
+  * __data[0], data[8] ~ data[9]__ are based on __EncodedExpireDaystamp__ and __data[4] ~ data[6]__. __EncodedExpireDaystamp__ can be calculated by `EncodeExpireDate` function where `Seed = 0x5B8C27` and `DaystampOfExpiration` is based on your input.
+
+    ```cpp
+    data[0] = EncodedExpireDaystamp.bytes[0] ^ data[6];
+    data[8] = EncodedExpireDaystamp.bytes[1] ^ data[4];
+    data[9] = EncodedExpireDaystamp.bytes[2] ^ data[5];
+    ```
+
+  * __data[3]__ must be `0xAC`. It represents the type of key.
+
+  * __data[1] ~ data[2]__ are based on __EncodedLicenseCount__, __data[7]__ and __data[5]__. __EncodedLicenseCount__ can be calculated by `EncodeLicenseCount` function where `DesiredLicenseCount` is based on your input. 
+
+    ```cpp
+    data[1] = EncodedLicenseCount.bytes[1] ^ data[7];
+    data[2] = EncodedLicenseCount.bytes[0] ^ data[5];
+    ```
+
+  Finally, the `TimeLicense` key is the hex string of `data[10]` where 4 hex chars consist of a block and each block is joined by `"-"`(hyphen). 
 
 ## 2. How to build
 In console:
@@ -90,4 +150,4 @@ E:\Github\010Editor-keygen\cpp>
 ```
 
 __NOTICE:__  
-The key generated will expired after 2020-06-23.
+This key generated will expired after 2020-06-23. If you want to modify expire date, please modify variables named __ExpireYear__, __ExpireMonth__ and __ExpireDay__ in `main.cpp`.