39 lines
858 B
JavaScript
39 lines
858 B
JavaScript
/**
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* CSPRNG Fisher-Yates shuffle.
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*
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* Only works on lists up to 255 elements.
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*/
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function cryptoShuffle(l) {
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for (let i = l.length - 1; i > 0; i--) {
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let value = new Uint8Array([0]);
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crypto.getRandomValues(value);
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while (value[0] > i) {
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crypto.getRandomValues(value);
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}
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let temp = l[i];
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l[i] = l[value[0]];
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l[value[0]] = temp;
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}
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return l;
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}
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window.cryptoShuffle = cryptoShuffle;
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function proveRegions(regions) {
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// Construct prover coins
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let coins = [];
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let regionNames = Object.keys(regions.keys());
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for (let x = 0; x < 20; x++) {
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let psi = cryptoShuffle(regionNames).join("");
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}
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// Construct verifier coins
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let hasher = new jsSHA("SHA3-256", "TEXT");
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hasher.update(JSON.stringify(regions));
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// Construct prover proofs
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}
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