Don't Roll Your Own …
The post, hosted on susam.net and shared on Lobsters, warns developers against implementing their own cryptography. It highlights that even experienced engineers often introduce vulnerabilities such as timing attacks, weak random number generation, or misuse of primitives. The author points to real-world examples like the Debian OpenSSL bug and the Sony PS3 ECDSA failure as cautionary tales. The core message is to rely on established libraries like libsodium or OpenSSL and to follow standards like TLS 1.3. The article stresses that rolling your own crypto is rarely justified and almost always leads to security compromises.
// why it matters
Custom crypto implementations frequently introduce critical vulnerabilities that compromise system security.