public function provideSha256Request()
{
$passphrase = new Passphrase('Mysecretsig1875!?');
$expectedSha1 = 'FD15F9371F2B42E3CAEC53BF2576AC89AAEBF53FD8FBA8F0B2EA13EAA823189D';
$request1 = $this->createMinimalParameterSet();
$expectedSha2 = 'A06D4534724885350BA5350731B02F4083370F8C9EED59D1F1C5E2B78EC3C257';
$request2 = $this->createExtensiveParameterSet();
return array(array($passphrase, $request1, $expectedSha1), array($passphrase, $request2, $expectedSha2));
}