On a method to authenticate and verify digital streams

• Autorzy: Wysocki B.J. , Wang Y. , Safavi-Naini R.
• Języki publikacji: EN

Abstrakty

EN

Recently, digital streams have become widely used to make audio, video, and other media available in real-time over the Internet. As with other transmission methods, the recipient needs to have a possibilty to verify the source and authenticity of the received information. Several techniques have been proposed to deal with this issue. Most of them are vulnerable to packet losses or they introduce unacceptable computational and/or communication overheads. Some of the graph-based techniques provide immunity to burst losses of certain length. However, these techniques are not immune to the loss of packets containing signatures or occasional burst of lengths greater than the assumed one. In the paper, we propose a modification to one of the graph-based techniques that introduces immunity to the loss of packets containing signatures, without introducing any additional overheads.

Słowa kluczowe

EN

authentication algorithms; hash chains; signing digital streams; Markov modelling; Gilbert-Elliott channels

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2002
• Tom: nr 2
• Strony: 45--52
• Opis fizyczny: Bibliogr. 18 poz., tab., rys.

Twórcy

autor

Wysocki B.J.

autor

Wang Y.

autor

Safavi-Naini R.

• University of Wollongong, Wollongong, Australia,