🔒 fix: secure randomness for spin wheel code generation#6
🔒 fix: secure randomness for spin wheel code generation#6marcin2121 wants to merge 1 commit intomainfrom
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- Replaced `Math.random()` with `crypto.getRandomValues()` for both selecting the prize and generating the coupon code suffix. - This mitigates the vulnerability of predictable PRNG outputs in the spin wheel action, protecting user coupon codes from being guessed. Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
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🎯 What: The
⚠️ Risk:
Math.random()function was used to select the winning prize and generate unique, 4-character coupon codes in thespinWheelserver action.Math.random()is not a cryptographically secure pseudo-random number generator (CSPRNG). An attacker could predict the state of the PRNG, allowing them to guess future generated coupon codes and potentially abuse the system.🛡️ Solution: Replaced
Math.random()with the Web Crypto API'scrypto.getRandomValues(). Specifically:crypto.getRandomValues(new Uint32Array(1))to generate a secure floating-point equivalent for the weighted prize selection algorithm.crypto.getRandomValues(new Uint8Array(4))to securely pick 4 random characters from the base-36 character set for the coupon suffix.PR created automatically by Jules for task 16355082406391363107 started by @marcin2121