function testHexDigestSha256_again() { $key = str_repeat(chr(0xaa), 80); $message = 'Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data'; $d = Braintree_Digest::hexDigestSha256($key, $message); $this->assertEquals('6355ac22e890d0a3c8481a5ca4825bc884d3e7a1ff98a2fc2ac7d8e064c3b2e6', $d); }