Abstract: A method for generating a deserialization vulnerability report of a Java project, includes: determining, by a computing device, if interior knowledge of the Java project is available, and when the interior knowledge of the Java project isn't available, performing a black box analysis to generate the deserialization vulnerability report; and when the interior knowledge of the Java project is available, determining by the computing device if source code of the Java project is accessible, when the source code of the Java project is accessible, performing a white box analysis to generate the deserialization vulnerability report, and when the source code of the Java project isn't accessible, performing a gray box analysis to generate the deserialization vulnerability report.

Abstract: A method and system for searching encrypted data using wildcard keywords. The method includes: obtaining, by a first computing device, a keyword for data to be encrypted, where the keyword has a fixed length; generating a sequence of primes; determining corresponding one prime from the sequence of primes for each character of the keyword; and defining a product of the corresponding primes of the characters of the keyword as index of the encrypted data, where the index can be searched using a wildcard search keyword.

Abstract: A method and system for encryption and decryption. The system includes a user computing device, a root secret server, and a backend server. The root secret server has a root secret code, and when receiving a fingerprint of the user computing device, calculates a device secret code for that device using the fingerprint. When sensitive data needs to be encrypted, the user computing device calculates a data key for the data based on the device secret code and the data information, and encrypts the data. The backend server retrieves the root secret code from the root secret server, and in response to receiving the encrypted data, retrieves data information and calculates the data key to decrypt the data. Similarly, the backend server can encrypt data and the user computing device can decrypt data. The root secret code, the device code, and the data key form a three level encryption mechanism.

Abstract: A connected device includes an application processor, a secure element, and a control module. The application processor is configured to receive a control command from an electronic device. The secure element is connected between the application processor and a control module and is configured to authenticate the control command. The control module is configured to receive the control command when the control command is authenticated by the secure element, execute the control command to activate at least one function of the connected device, and transmit a response to the electronic device.

Abstract: A method and system for searching encrypted data using wildcard keywords. The method includes: obtaining, by a first computing device, a keyword for data to be encrypted, where the keyword has a fixed length; generating a sequence of primes; determining corresponding one prime from the sequence of primes for each character of the keyword; and defining a product of the corresponding primes of the characters of the keyword as index of the encrypted data, where the index can be searched using a wildcard search keyword.

Abstract: A method and system for encryption and decryption. The system includes a user computing device, a root secret server, and a backend server. The root secret server has a root secret code, and when receiving a fingerprint of the user computing device, calculates a device secret code for that device using the fingerprint. When sensitive data needs to be encrypted, the user computing device calculates a data key for the data based on the device secret code and the data information, and encrypts the data. The backend server retrieves the root secret code from the root secret server, and in response to receiving the encrypted data, retrieves data information and calculates the data key to decrypt the data. Similarly, the backend server can encrypt data and the user computing device can decrypt data. The root secret code, the device code, and the data key form a three level encryption mechanism.

Abstract: A method for generating a deserialization vulnerability report of a Java project, includes: determining, by a computing device, if interior knowledge of the Java project is available, and when the interior knowledge of the Java project isn't available, performing a black box analysis to generate the deserialization vulnerability report; and when the interior knowledge of the Java project is available, determining by the computing device if source code of the Java project is accessible, when the source code of the Java project is accessible, performing a white box analysis to generate the deserialization vulnerability report, and when the source code of the Java project isn't accessible, performing a gray box analysis to generate the deserialization vulnerability report.

Abstract: A connected device includes an application processor, a secure element, and a control module. The application processor is configured to receive a control command from an electronic device. The secure element is connected between the application processor and a control module and is configured to authenticate the control command. The control module is configured to receive the control command when the control command is authenticated by the secure element, execute the control command to activate at least one function of the connected device, and transmit a response to the electronic device.