Golang Snippet #12

This challenge covers the review of a snippet of code written in Golang

PRO
Tier
Medium
< 1 Hr.
543

Course


In this Code Review challenge, we analyze a snippet of Go (Golang) code designed to generate a secret string for signing JWT tokens. The code initializes a random secret using the current time to seed the random number generator. The process involves creating an array of random bytes and converting it to a string.

However, this code has significant vulnerabilities. The key issue is the use of `math/rand` instead of `crypto/rand`, as the former does not provide cryptographically secure random data. Additionally, seeding the random number generator with the current time makes the secret predictable and susceptible to brute-force attacks. An attacker could exploit this to forge JWT tokens, compromising the security of the application.

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