Key Property
The 256 bit (32 byte) key to be used when computing a MAC (Message Authentication Code).
Syntax
poly1305.getKey([callback]) poly1305.setKey( key_Buffer, [callback])
Default Value
""
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 the getKey([callback]) method is defined as:
function(err, buffer){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'buffer' is the value returned by the method.
The callback for the setKey([callback]) 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 property holds the secret key used when computing the MACValue. The key must be 256 bits (32 bytes) long.
Data Type
Buffer