137results about How to "Avoid debugging" patented technology

A trusted Java virtual machine provides a method for supporting tamper-resistant applications, ensuring the integrity of an application and its secrets such as keys. The trusted Java virtual machine verifies the integrity of the Java application, prevents debugging of the Java application, and allows the Java application to securely store and retrieve secrets. The trusted Java virtual machine environment comprises a TrustedDictionary, a TrustedBundle, an optional encryption method for encrypting and decrypting byte codes, and an underlying trusted Java virtual machine. The encrypted TrustedDictionary protects data while the TrustedBundle protects programming code, allowing applications to store secret data and secure counters. The application designer can restrict TrustedBundle access to only those interfaces that the application designer explicitly exports. The open source code may optionally be encrypted. Secrets required by the open source programming code of the application are encrypted in TrustedDictionary.

Disclosed is a method for providing security of a program configured by a script language. The present invention provides security for a common intermediate language-based program, which provides security to a user DLL used for a platform supporting an application made of a common intermediate language code and a plug-in made of a native code. The method comprises: a particular function call step of calling a particular function within an application calling a particular module in a secure logic DLL including one or more modules while an application is loaded and executed in a main memory; a DDL request step of making a request for a secure logic DLL to a secure module plug-in for encrypting and storing the secure logic DLL; a DLL generation step of generating a secure logic DLL by decrypting the encrypted DLL in the secure module plug-in; a step of transmitting the secure log DLL to the particular function within the application; and a DLL module call step of calling the particular module included in the secure logic DLL.

The invention provides a multi-shaft vacuum manipulator shafting precision testing device which is simple in structure, convenient to assemble and disassemble and high in practicability. The multi-shaft vacuum manipulator shafting precision testing device comprises a test board, a manipulator direct drive unit, an angle encoder installation support, an angle encoder, a connection flange and a laser displacement testing device. The manipulator direct drive unit is installed on the test board through a flange. One end of the angle encoder installation support is fixed to the test board through a bolt, and the angle encoder is installed at the other end of the angle encoder installation support through a bolt. One end of the connection flange is connected with a shaft of the manipulator direct drive unit, and the other end of the connection flange is connected with a shaft of the angle encoder through a flexible coupler. The flexible coupler compensates axial movement and non-alignment errors between the shaft of the angle encoder and the connection flange to prevent the shaft of the angle encoder from being stressed too much. The laser displacement testing device is composed of two laser displacement sensors and a two-dimension movable platform, and can regulate the measurement range. The multi-shaft vacuum manipulator shafting precision testing device has the advantages that the measurement precision is high, testing is convenient, the application range is wide and the testing cost is low.