Function signingKey

packages/computer/src/assets/sigv4.ts:66–76

(
  secretAccessKey: string,
  dateStamp: string,
  region: string,
  service: string,
)

// Exported for tests against AWS's published signing-key vector.
// Not part of the package's public surface.
export function signingKey(
  secretAccessKey: string,
  dateStamp: string,
  region: string,
  service: string,
): Uint8Array {
  const kDate = hmac(`AWS4${secretAccessKey}`, dateStamp);
  const kRegion = hmac(kDate, region);
  const kService = hmac(kRegion, service);
  return hmac(kService, "aws4_request");
}

export interface PresignOptions {
  // Bucket endpoint origin, e.g.