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  1. Great book, very helpful basis to writing php and mysql database. I've based my login on hash_hmac (page 78 chapter 4). Works fine for some passwords, but then a password attempt was rejected and I traced it back to the binary save. Below is echo from various versions of Password, Crypt, Hash false so not saving binary, Hash true but then base64_encoded, saved to varbinary(100) and saved to tinyblob. First line is echo of the variable saved, second line is the value as read back from the database. Why does a password '11Waldron' not read back as saved in the last two cases when save as varbinary or tinyblob? Any thoughts? Coding is basically - $UsePassTBHash= mysql_real_escape_string(hash_hmac('sha256',$Password,'c#rAz01',true)); Results are - 11Waldron(Password) juxBFM8KEpQoo(UsePassCrypt) juxBFM8KEpQoo 00d93c9fb500fa4805b957c8c763392d099c5c67ab59f178722ce73018d17169(UsePassHashFalse) 00d93c9fb500fa4805b957c8c763392d099c5c67ab59f178722ce73018d17169 ANk8n7UA+kgFuVfIx2M5LQmcXGerWfF4ciznMBjRcWk=(UsePassB64Hash) ANk8n7UA+kgFuVfIx2M5LQmcXGerWfF4ciznMBjRcWk= \0�<��\0�H�W��c9- �\\g�Y�xr,�0�qi(UsePassVBHash) �<���H�W��c9- �\g�Y�xr,�0�qi \0�<��\0�H�W��c9- �\\g�Y�xr,�0�qi(UsePassTBHash) �<���H�W��c9- �\g�Y�xr,�0�qi
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