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Last change
on this file since 188ee53 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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File size:
323 bytes
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| 1 | import crypto from 'crypto';
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| 2 | const rnds8Pool = new Uint8Array(256); // # of random values to pre-allocate
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| 3 |
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| 4 | let poolPtr = rnds8Pool.length;
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| 5 | export default function rng() {
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| 6 | if (poolPtr > rnds8Pool.length - 16) {
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| 7 | crypto.randomFillSync(rnds8Pool);
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| 8 | poolPtr = 0;
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| 9 | }
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| 10 |
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| 11 | return rnds8Pool.slice(poolPtr, poolPtr += 16);
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| 12 | } |
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