How to get correct SHA1 hash of BLOB using CryptoJS? -

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cryptojs v3.1.2, sha1.js rollup

in js want calculate sha1 of blob before sending server. on server want calculate sha1 of resulting file , compare sha1 received js. problem hash generated cryptojs.sha1() incorrect (always 9844f81e1408f6ecb932137d33bed7cfdcf518a3)

js code:

function uploadfileslice (slice) { // slice blob     var filereader = new filereader()     filereader.onload = function(event){         var arraybuffer = event.target.result         var wordarray = cryptojs.lib.wordarray.create(arraybuffer)         var sha1crc = cryptojs.sha1(wordarray).tostring(cryptojs.enc.hex)         //etc         requestparams.append('fileslice', slice)         requestparams.append('sha1crc', sha1crc)         //etc     }     filereader.readasarraybuffer(slice) }

php code:

$file_crc = sha1_file($_files['fileslice']['tmp_name']); if ($_request['sha1crc'] !== $file_crc) {     echo "invalid crc: {$_request['sha1crc']} (expected $file_crc)";     return; }

output:

invalid crc: 9844f81e1408f6ecb932137d33bed7cfdcf518a3 (expected 3ebe2cd2d8fd8d8f977b6d715f0b1adf5b08b407

i hoping myhash = cryptojs.sha1(blob)...

from info you've provided i'm not sure how have things setup in order arraybuffers supported have include components/lib-typedarrays-min.js.

there's discussion @ https://code.google.com/p/crypto-js/issues/detail?id=67.

hope helps!


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