s256Challenge function

String s256Challenge(
  1. String verifier
)

Implementation

String s256Challenge(String verifier) {
  // Dart's crypto SHA-256 lives in package:crypto; source-only build
  // avoids that dep by shelling to dart:convert + manual sha via
  // dart:typed_data. To keep this file dependency-free, callers
  // wire package:crypto via [ChallengeHasher]. Default is a stub
  // that ONLY works when [ChallengeHasher.override] is set (real
  // Flutter apps and tests do this once at startup).
  return ChallengeHasher.current(verifier);
}