| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for authentication between at least two nodes within a network, preferably a wireless sensor network. SOLUTION: The sending node computes a t-bit long hash value by using a hash function (h). From the sending node to the receiving node, only t-k bits of the hash value are transferred as truncated hash value. In such a case, (k) is an arbitrary natural number between 1 and t-1. The transmitted hash value is compared to a computed hash value at the receiving node. Thus, data to be additionally transmitted via the network become minimum. COPYRIGHT: (C)2007,JPO&INPIT
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