Efficient multicast stream authentication using erasure codes

  title={Efficient multicast stream authentication using erasure codes},
  author={Jung-Min Jerry Park and Edwin K. P. Chong and Howard Jay Siegel},
  journal={ACM Trans. Inf. Syst. Secur.},
We describe a novel method for authenticating multicast packets that is robust against packet loss. Our focus is to minimize the size of the communication overhead required to authenticate the packets. Our approach is to encode the hash values and the signatures with Rabin's Information Dispersal Algorithm (IDA) to construct an authentication scheme that amortizes a single signature operation over multiple packets. This strategy is especially efficient in terms of space overhead, because just… CONTINUE READING
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