Secure boot method and semiconductor memory system for using the method,申请号KR20070070778-传众专利搜索

Secure boot method and semiconductor memory system for using the method

申请公布号：KR101393307(B1)

申请号：KR20070070778

申请日期：2007.07.13

申请公布日期：2014.05.12

分类号：G06F12/14;G06F21/00

主分类号：G06F12/14

摘要：A semiconductor memory system includes an external memory, an internal memory, and a one-time programmable (OTP) memory. The external memory includes a kernel, a public key, first boot information used to authenticate the public key and generate a test secret key, and a second boot loader verifying integrity of the kernel. The internal memory includes a first boot loader that verifies integrity of the second boot loader and generates the test secret key. The OTP memory includes second boot information generated using the public key and a secret key. Since the secure boot method and the semiconductor memory system using the method do not need an additional OTP memory to store a secret key unlike conventional technology, the capacity and recording time of the OTP memory can be reduced to about half compared to the conventional technology.