公开(公告)号：US20010003540A1

公开(公告)日：2001-06-14

申请号：US09727300

申请日：2000-11-30

Applicant: STMicroelectronics S.A.

Inventor： Alain Pomet ,  Bernard Plessier ,  Laurent Sourgen

IPC: H04L009/12 ,  H04L009/16 ,  H04L012/22

CPC classification number: H04L9/0891 ,  H04L9/0631 ,  H04L2209/04

Abstract: In an electronic component including a two-way bus through which data elements travel between peripherals and a central processing unit at the rate of a clock signal, the central processing unit and at least one of the peripherals each includes a data encryption/decryption cell. Each data encryption/decryption cell uses the same secret key. The secret key is produced locally at each clock cycle in each cell from a random signal synchronous with the clock signal, and is applied to each of the cells by a one-way transmission line.

Abstract translation: 在包括双向总线的电子部件中，数据元件通过该双向总线以时钟信号的速率在外围设备和中央处理单元之间行进，中央处理单元和至少一个外围设备都包括数据加密/解密单元。 每个数据加密/解密单元使用相同的秘密密钥。 秘密密钥是从与时钟信号同步的随机信号在每个小区中的每个时钟周期本地产生的，并且通过单向传输线应用于每个小区。