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20 lines
538 B
Plaintext
20 lines
538 B
Plaintext
const timingSafeEqual = (a, b) => {
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if (!(a instanceof Uint8Array)) {
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throw new TypeError('First argument must be a buffer');
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}
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if (!(b instanceof Uint8Array)) {
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throw new TypeError('Second argument must be a buffer');
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}
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if (a.length !== b.length) {
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throw new TypeError('Input buffers must have the same length');
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}
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const len = a.length;
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let out = 0;
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let i = -1;
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while (++i < len) {
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out |= a[i] ^ b[i];
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}
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return out === 0;
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};
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export default timingSafeEqual;
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