Zusammenfassung
Extensive use of Wireless Sensor Networks is giving
rise to different types of threats in certain commercial and
military applications. To protect the WSN data communication
against various threats appropriate security schemes are
needed. However, WSN nodes are resource constrained, with
respect to limited battery energy, and limited computational
and memory available with each WSN node. Hence, the
security model to be used in WSN’s should use minimal
resources to the extent possible and it should also provide
good security. Elliptic curve cryptography (ECC) is the best
suited algorithm for WSNs, as it offers better security for
smaller key sizes compared to the popular RSA algorithm. In
ECC, encoding of message data to a point lying on the give
Elliptic Curve is a major problem as the encoding consumes
more resources. This paper provides a novel encoding
procedure to overcome these problems to a large extent. This
paper also describes implementation aspects of the proposed
encoding and decoding methods.
Nutzer