Authenticating mobile computing users can require a significant amount of processing and communications resources— particularly when protocols based on public key encryption are...
We first study the problem of doing Verifiable Secret Sharing (VSS) information theoretically secure for a general access structure. We do it in the model where private channels b...
At TCC 2005, Backes and Cachin proposed a new and very strong notion of security for public key steganography: secrecy against adaptive chosen covertext attack (SS-CCA); and posed ...
: We study the interplay of network connectivity and the issues related to the `possibility', `feasibility' and `optimality' for unconditionally reliable message tra...
Arpita Patra, Ashish Choudhury, C. Pandu Rangan, K...
We study cryptographic attacks on random Feistel schemes. We denote by m the number of plaintext/ciphertext pairs, and by k the number of rounds. In their famous paper [3], M. Luby...