Method and system for validating transaction in client-server environment

A method of validating a transaction in a client-server game environment, the method comprising:

• receiving, at a client device, a transaction request initiated by a user for exchanging one or more resources for an in-game asset;
• executing, at the client device, a client-side command associated with a common logic code, the command being executed using state data stored at a memory of the client device;
• determining, using a validation process at the client device, whether a resource balance associated with the user fails at least one server validation criterion without transmitting the request to the server, and when the resource balance passes the server validation criterion transmitting a transaction execution request to the server;
• converting, by the server, the client-side command into a server-side executable format using logic code associated with the client device;
• executing, at a processor of the server, the converted command using a copy of the state data stored at a non-compromised memory of the server;
• validating the transaction based on (i) successful execution of the converted command, and (ii) one or more recorded previous transactions of the user;
• updating, at the server, the copy of the state data based on the execution of the command;
• and
• transmitting a validation response to the client device, wherein the client device performs the transaction by exchanging the resources for the in-game asset only upon receipt of the validation response.

A system for validating a transaction in a client-server game environment, comprising:

• a client device having a processor and a memory storing state data corresponding to a user, the client device configured to:
• receive a transaction request initiated by the user for exchanging one or more resources for an in-game asset;
• execute a client-side command associated with a common logic code using the state data;
• determine, using a validation process, whether a resource balance associated with the user fails at least one server validation criterion without transmitting the request to the server;
• and
• transmit a transaction execution request to the server only when the resource balance passes the server validation criterion;
• a server comprising:
• a processor;
• a non-compromised memory storing a copy of the state data;
• and
• logic code associated with the client device configured to convert the client-side command into a server-side executable format;
• wherein the processor of the server is further configured to:
• execute the converted command using the copy of the state data stored at the non-compromised memory of the server;
• validate the transaction based on (i) successful execution of the converted command, and (ii) one or more recorded previous transactions of the user;
• update the copy of the state data based on execution of the command;
• and
• transmit a validation response to the client device;
• wherein the client device is further configured to perform the transaction by exchanging the resources for the in-game asset only upon receipt of the validation response.

A non-transitory computer-readable storage medium storing instructions that, when executed by processing hardware of a client device and a server in a client-server game environment, cause the processing hardware to perform a method comprising:

• receiving, at a client device, a transaction request initiated by a user for exchanging one or more resources for an in-game asset;
• executing, at the client device, a client-side command associated with a common logic code, the command being executed using state data stored at a memory of the client device;
• determining, using a validation process at the client device, whether a resource balance associated with the user fails at least one server validation criterion without transmitting the request to the server, and when the resource balance passes the server validation criterion transmitting a transaction execution request to the server;
• converting, by the server, the client-side command into a server-side executable format using logic code associated with the client device;
• executing, at a processor of the server, the converted command using a copy of the state data stored at a non-compromised memory of the server;
• validating the transaction based on (i) successful execution of the converted command, and (ii) one or more recorded previous transactions of the user;
• updating, at the server, the copy of the state data based on the execution of the command;
• and
• transmitting a validation response to the client device, wherein the client device performs the transaction by exchanging the resources for the in-game asset only upon receipt of the validation response.