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x/jose/runtime/timing_safe_equal.ts

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import type { TimingSafeEqual } from './interfaces.d.ts'
const timingSafeEqual: TimingSafeEqual = (a, b) => {  if (!(a instanceof Uint8Array)) {    throw new TypeError('First argument must be a buffer')  }  if (!(b instanceof Uint8Array)) {    throw new TypeError('Second argument must be a buffer')  }  if (a.length !== b.length) {    throw new TypeError('Input buffers must have the same length')  }
  const len = a.length  let out = 0  let i = -1  while (++i < len) {    out |= a[i] ^ b[i]  }  return out === 0}
export default timingSafeEqual