this post was submitted on 13 Jun 2026
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This is the most shocking part. You’d think that AMD as a high-tech company has some smart people working for them. These are very basic things that any half decent programmers should get right. If at no part of the process of implementing this anyone brought up that this is not secure, that is extremely worrying and indicative of a very broken development process. It’s not like a proper cryptographic signature costs extra. This is just pure incompetence.
The problem with using CRC32 is it reversible and has high collusion rate. An attacker can easily make a file the generates the same hash. This tool a few minutes of searching online. It appears that people who work at AMD don't even know how to do proper research. All they have to do is look up how to make a secure updating process.
The problem is that a CRC32 checksum is not a signature. Doesn't matter if they use the most complex checksum in the world or not, what they need here is a signature
What does it matter if it's CRC or sha512 if they are using an unsecured connection to transmit them? A stranger who has already acquired capability to modify the payload in transit can also modify the checksum. A better hash will not solve this problem.