SecureBlackbox 2020 Node.js Edition

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Update Method

Feeds a chunk of data to the hash function.

Syntax

hashfunction.update(buffer_Buffer, [callback])

Callback

The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).

The callback for this method is defined as:

function(err){ }

'err' is the error that occurred. If there was no error, then 'err' is 'null'.

'err' has 2 properties which hold detailed information:

err.code
err.message

Remarks

This method feeds Buffer to the hash function. Call this methodrepeatedly to pass your data to the hash function chunk by chunk.

Remember to initialize the hash function with an Reset call beforestarting to feed data with this method. After the whole volume ofdata has been sent, complete the calculation and obtain the resultingmessage digest with a Finish call.

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SecureBlackbox 2020 Node.js Edition - Version 20.0 [Build 8165]