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POjava hmac/sha512 generation
 

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    <p>I have this php code which generate a <strong>HMAC</strong> (and not a simple message digest):</p> <pre><code>&lt;?php $key = "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF"; $binkey = pack("H*", $key); echo strtoupper(hash_hmac('sha512', "ABC", $binkey)); ?&gt; </code></pre> <p>And with <code>ABC</code> input its output is:</p> <pre><code>100A6A016A4B21AE120851D51C93B293D95B7D8A44B16ACBEFC2D1C9DF02B6F54FA3C2D6802E52FED5DF8652DDD244788A204682D2D1CE861FDA4E67F2792643 </code></pre> <p>And I need to clone it in java.</p> <p>So here is my current java clone :</p> <pre><code>private String generateHMAC( String datas ) { // final Charset asciiCs = Charset.forName( "utf-8" ); Mac mac; String result = ""; try { byte[] bytesKey = PayboxConstants.KEY.getBytes( ); final SecretKeySpec secretKey = new SecretKeySpec( bytesKey, "HmacSHA512" ); mac = Mac.getInstance( "HmacSHA512" ); mac.init( secretKey ); final byte[] macData = mac.doFinal( datas.getBytes( ) ); byte[] hex = new Hex( ).encode( macData ); result = new String( hex, "ISO-8859-1" ); } catch ( final NoSuchAlgorithmException e ) { AppLogService.error( e ); } catch ( final InvalidKeyException e ) { AppLogService.error( e ); } catch ( UnsupportedEncodingException e ) { AppLogService.error( e ); } return result.toUpperCase( ); } </code></pre> <p>But it does not makes the job because for same input (ABC) its ouput is:</p> <pre><code>AA6492987D7A7AC81109E877315414806F1973CC47B897ECE713171A25A11B279329B1BFF39EA72A5EFB7EDCD71D1F34D5AAC49999A780BD13F019ED99685B80 </code></pre> <p>I've tries a lot of other java code but none of them was an exact clone of php version.</p> <p>What did I do wrong?</p>
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