C-sky Microsystems Co., Ltd.

Alibaba Group Holding Limited

Zhejiang University

Hangzhou Hikvision Digital Technology Co., Ltd.

Jie Wang

Peng Jiang

Aiyong Ma

Huanhuan Huang

Youfei Wu

Jie Gandalf Yan

Ming Chen

Jun Yang

Ying Zhang

Xianshao Chen

Jiaqi Xi

Yang Xiang

Qi Wu

Yucan Gu

Yongheng Yu

Yuyin Chen

Yang Luo

Mingying Yang

Yucai Xia

Erpeng Chang

Xinglong Gao

Disclosed is a method for constructing fluorescentsilkworm silk irradiated by near-infrared light and its products, comprising: (1) preparing upconversion nanoparticles, and performing surface modification with concanavalin to obtain modified upconversion nanoparticles; (2) uniformly dispersing the modified upconversion nanoparticles in water to formulate an aqueous solution of the upconversion nanoparticles, (3) picking mature mulberry leaves, immersing the mulberry leaves in the aqueous solution system of the nanoparticles, leaching water, and naturally drying the mulberry leaves; (4) after silkworms have grown for a set time, feeding the treated mulberry leaves to the silkworms until the silkworms spin silk cocoons; and (5) collecting the silk, so as to obtain mulberry silk that fluoresces under near-infrared light. The present invention selects upconversion nanoparticles capable of emitting fluorescence under the irradiation of near-infrared light which has stronger penetration, thus has better application in deep tissue imaging.

Preparation method for mulberry silk that fluoresces under near-infrared light and product

Embodiments of the present disclosure provide a protective apparatus for an indirect access memory controller. The apparatus can include: a bus monitoring unit configured to monitor a bus address and detect an operation type of a bus accessing the indirect access memory controller, update a corresponding window register if the operation type is a window register operation, initiate permission authentication if the operation type is a register controlling operation, and perform list entry configuration if the operation type is a permission list configuration operation; a window register unit configured to store operation addresses of different access types; a permission list unit configured to partition a memory space into several virtual memory protection areas, and independently set a access permission attribute for each memory area; and an unauthorized operation processing unit configured to process a subsequent operation performed when a permission violating access occurs. Embodiments of the present disclosure can implement security protection for this type of memory by merely adding the protective apparatus between a bus and an indirect access memory controller, and a security function can be added to an original memory control module without modifying the indirect access memory controller.

Memory protective apparatus for indirect access memory controller

The present disclosure provides an off-chip memory address scrambling apparatus and method for a system on chip. The apparatus includes a true random number generator, a key memory and an on-chip security controller. The on-chip security controller is connected to the true random number generator, the key memory and an off-chip memory respectively and is configured to read or write data in the off-chip memory and perform address scrambling processing on the data. The on-chip security controller includes: a memory interface module, and an address scrambling module configured to read a random key stored in the key memory, to select according to a valid/invalid state of the random key to directly invoke the read random key or read again a random key that is generated by the true random number generator and stored into the key memory, and then to perform according to the random key scrambling algorithm processing on an unscrambled address inputted by the memory interface module to form a scrambled address, and output the scrambled address to an address scrambling module of the off-chip memory. The present disclosure can improve the security while high efficiency.

Off-chip memory address scrambling apparatus and method for system on chip

Embodiments of the disclosure provide a method and apparatus for encrypting and decrypting data. The method for encrypting data in a computer system can include: receiving, by a memory operation module, a first data and a second data for encryption; determining at least one storage area for a first encrypted data corresponding to the first data and a second encrypted data corresponding to the second data; generating at least one key based on the first and second data and the at least one storage area; and encrypting the first data and the second data using the at least one key to generate the first encrypted data and the second encrypted, respectively.

Storage data encryption/decryption apparatus and method

A data obtaining method and apparatus. The method comprises: determining address information of data to be obtained; judging whether a disk corresponding to the address information of the data to be obtained is a damaged disk or not; if the disk corresponding to the address information of the data to be obtained is not a damaged disk, obtaining the data to be obtained according to the address information of the data to be obtained to obtain current data; if the disk corresponding to the address information of the data to be obtained is a damaged disk, determining the address information of next data to be obtained, and returning to the step of judging whether a disk corresponding to the address information of the data to be obtained is a damaged disk or not.

Data obtaining method and apparatus

The present disclosure provides a storage data encryption and decryption method, including: providing a true random number generator configured to generate a plurality of keys; providing a data memory configured to store data and a key memory configured to store keys, and writing the keys into the key memory; and providing a data reading and writing interface module configured to read and write data, and providing a data encryption and decryption module configured to read the keys and perform encryption and decryption operations. The data written by the data reading and writing interface module is encrypted by the data encryption and decryption module and written into the data memory. The data read from the data memory is decrypted by the data encryption and decryption module and read to the data reading and writing interface module.

Storage data encryption and decryption apparatus and method

One or more service call chains in a distributed service system are identified, each service call chain including one or more service nodes that are sequentially called by clients of the distributed service system. A service call model corresponding to a particular service call chain is generated from the one or more service call chains. Calls to the particular service call chain by the clients of the distributed service system are identified. Performance statistics in the service call model are updated for the particular service call chain, wherein the performance statistics is updated based on the identified calls to the particular service call chain. A performance problem associated with the particular service call chain is identified based on the updated performance statistics. In response to identifying the performance problem associated with the particular service call chain, corrective action for the identified performance problem is initiated.

Monitoring node usage in a distributed system

Growing community of inventors

Hangzhou, China

Jie Wang