C-sky Microsystems Co., Ltd.

Alibaba Group Holding Limited

Yucan Gu

Xianshao Chen

Jie Wang

Peng Jiang

Aiyong Ma

Jiaqi Zhu

Jiuchao Cui

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 upgrading a system version of a system. The method can include: acquiring, using circuitry, from a first storage space a current system version identification corresponding to a current system version; acquiring, using circuitry, from a second storage space a backup system version identification corresponding to a backup system version; comparing, using circuitry, the current system version identification with the backup system version identification; and configuring the system based on the comparison.

System version upgrading method and apparatus

Growing community of inventors

Hangzhou, China

Yucan Gu