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· by yulistic · Read in about 1 min · (56 Words)

Nonce is used to check data is the most recent one.

Nonce is a randomly generated number when there is some modification.


The figure above (reference: wikipedia) describes an example of usage of nonce in client-server authentication. As seen in the figure, there are two nonces: a server nonce and a client nonce ( = cnonce).