INNER CODE UNIT · TypeScript

secretLength

privy-io/shamir-secret-sharing · src/index.ts:300

  const secretLength = shareLength - 1;
  const secret = new Uint8Array(secretLength);

  const xSamples = new Uint8Array(sharesLength);
  const ySamples = new Uint8Array(sharesLength);

  const samples: Set<number> = new Set();
  for (let i = 0; i < sharesLength; i++) {
    const share = shares[i]!;
    const sample = share[shareLength - 1]!;

    // The last byte of each share should be a unique value between 1-255 inclusive.
    if (samples.has(sample)) {
      throw new Error('shares must contain unique values but a duplicate was found');
    }

    samples.add(sample);
    xSamples[i] = sample;

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