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System and method for security using one-time execution code

  • US 9,830,434 B2
  • Filed: 05/09/2008
  • Issued: 11/28/2017
  • Est. Priority Date: 05/09/2007
  • Status: Active Grant
First Claim
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1. A security client comprising a processor and a memory, the security client configured to use a one-time execution code in an environment in which a server and the security client establish a connection through a network, wherein the security client automatically receives, from the server, the one-time execution code without a user interaction,wherein the received one-time execution code is included in a packet between the server and the security client, the packet being transmitted from the server to the security client,wherein the one-time execution code is repeatedly generated as irregular by the server while the connection with the security client is maintained, for determining whether a client program is appropriate,wherein the security client is configured to load the one-time execution code on a code container, the code container being pre-allocated in a part of the memory which is already occupied by the client program, and obtain an execution result of the loaded one-time execution code while executing the client program,wherein the received one-time execution code is not generated as a file but directly loaded on the pre-allocated part of the memory which is already occupied by the client program,wherein the security client transmits the execution result to the server, and deletes the one-time execution code from the code container after the transmitting of the execution result,wherein the transmitted execution result is included in a packet between the server and the security client, the packet being transmitted from the security client to the server.

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