Sang-Eon Lee

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As there is growth in the need of applications such as video conferencing and interactive chatting, secure group communication is an important research area. Security in these applications is necessary to provide services like privacy, data-integrity, and non-repudiation to group members. A naive way to achieve security in such groups is to have a secret(More)
Sensor networks are expected to be used at anywhere in the near future and recently their security problems have been rising. Due to the limited computing power of senor nodes, it is impossible to use asymmetric cryptography approaches for the session key establishment or to apply advanced encryption method such as AES and DES for the data encryption. In(More)
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