In Java we have progressive hmac like so:
Mac mac = Mac.getInstance("HmacSHA256");
mac.init(macKey);
mac.update(part(0));
mac.update(part(1));
...
byte[] fullMac = mac.doFinal(part(n))
Please what is the c# equivalent for progressive HMACSHA256?
Got it! Microsoft over-cooked the otherwise simple Update operation into TransformBlock & TransformFinalBlock
Mac mac = Mac.getInstance("HmacSHA256");
mac.init(macKey);
mac.update(part(0));
mac.update(part(1));
...
byte[] fullMac = mac.doFinal(part(9))
in .Net this now becomes (vb.net)
dim fullMac as byte()
using mac=New HMACSHA256(macKey)
mac.TransformBlock(part(0),0,part(0).Length,null,0)
mac.TransformBlock(part(1),0,part(1).Length,null,0)
...
fullMac=mac.TransformFinalBlock(part(9),0,part(9).Length)
end using
I don't see how this helps developer-productivity in any way :(
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.