Conceptxorshift128+
xorshift128+
A fast pseudorandom number generation algorithm used by JavaScript engines such as V8 for the Math.random() implementation. Its state space is relatively small and the algorithm is public, so its output can be reverse-engineered and predicted after enough values are observed; it is not cryptographically secure.
Timeline (last 90 days)
Oct 17
Math.random() does not meet cryptographic security standards; engines use fast PRNGs (such as V8's xorshift128+), and once enough output is collected the internal state can be recovered and subsequent values predicted.
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