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We present the first traitor tracing scheme with efficient black-box traitor tracing in which the ratio of the ciphertext and plaintext lengths (the transmission rate) is asymptotically 1, which is optimal. Previous constructions in this setting either obtained constant (but not optimal) transmission rate [16], or did not support black-box tracing [10]. Our treatment improves the standard modeling...
A traitor tracing scheme allows a content distributor to detect at least one of the traitors whose secret key is used to create a pirate decoder. In building efficient traitor tracing schemes, reducing ciphertext size is a significant factor since the traitor tracing scheme must handle a larger number of users. In this paper, we present a fully collusion-resistant traitor tracing scheme where the...
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