STM32芯片内有唯一的只读序列号吗？

stdio

是否能起到有效控制拷贝的作用？

heky

可以啊。

watercat

？？1楼的回答，跟楼顶的主要问题有关系么？

bluelucky

有的，可以通过序列号计算出一个密钥，每份产品的密钥都不同。如果有人读出你的程序并且抄袭若干份，则这些赝品的密钥都是被抄的。只要密钥算法合理，就能查出密钥与序列号不符。这也是电脑上的软件利用硬盘序列号加密的思路

stdio

谢谢！^_^

agnd

问题是，现在ARM指令的反编译软将发展到什么水平了？

f-tek

我在一楼的发言是指：可以根据唯一序列号来加密程序。

程序第一次执行时根据序列号来算出密码，写入存储器。
以后执行时判断序列号和密码是否匹配。

agnd

楼上朋友，我在想，有什么好的软件或工具把截获的加密程序的二进制码反编译成我可以看懂得公式。

watercat

奇怪……到底STM32F哪本资料的哪个地方说过STM32F有设备唯一ID了？

fhqmc

这个讨论有意思啊，看最后结果

litteworm

STM32F有设备唯一ID

STM32F10X内含96位的唯一的只读性序列号

Unique device ID register (96 bits)
The unique device identifier is ideally suited:
● for use as serial numbers (for example USB string serial numbers or other end
applications)
● for use as security keys in order to increase the security of code in Flash memory while
using and combining this unique ID with software cryptographic primitives and
protocols before programming the internal Flash memory
● to activate secure boot processes, etc.
The 96-bit unique device identifier provides a reference number which is unique for any
device and in any context. These bits can never be altered by the user.
The 96-bit unique device identifier can also be read in single bytes/half-words/words in
different ways and then be concatenated using a custom algorithm.


具体可以看这里 http://www.stmfans.com/bbs/viewthread.php?tid=317&page=1&extra=page%3D1

Grant

请下载STM32的用户手册英文Rev5  Page642

25.2 Unique device ID register (96 bits)
The unique device identifier is ideally suited:
● for use as serial numbers (for example USB string serial numbers or other end
applications)
● for use as security keys in order to increase the security of code in Flash memory while
using and combining this unique ID with software cryptographic primitives and
protocols before programming the internal Flash memory
● to activate secure boot processes, etc.
The 96-bit unique device identifier provides a reference number which is unique for any
device and in any context. These bits can never be altered by the user.
The 96-bit unique device identifier can also be read in single bytes/half-words/words in
different ways and then be concatenated using a custom algorithm.