TY - GEN
T1 - Traitor tracing with optimal transmission rate
AU - Fazio, Nelly
AU - Nicolosi, Antonio
AU - Phan, Duong Hieu
PY - 2007
Y1 - 2007
N2 - 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 of black-box tracing by additionally accounting for pirate strategies that attempt to escape tracing by purposedly rendering the transmitted content at lower quality. Our construction relies on the decisional bilinear Diffie-Hellman assumption, and attains the same features of public traceability as (a repaired variant of) [10], which is less efficient and requires non-standard assumptions for bilinear groups.
AB - 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 of black-box tracing by additionally accounting for pirate strategies that attempt to escape tracing by purposedly rendering the transmitted content at lower quality. Our construction relies on the decisional bilinear Diffie-Hellman assumption, and attains the same features of public traceability as (a repaired variant of) [10], which is less efficient and requires non-standard assumptions for bilinear groups.
KW - Bilinear maps
KW - Constant transmission rate
KW - Fingerprint codes
KW - Traitor tracing
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U2 - 10.1007/978-3-540-75496-1_5
DO - 10.1007/978-3-540-75496-1_5
M3 - Conference contribution
AN - SCOPUS:38149109883
SN - 9783540754954
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 71
EP - 88
BT - Information Security - 10th International Conference, ISC 2007, Proceedings
T2 - 10th Information Security Conference, ISC 2007
Y2 - 9 October 2007 through 12 October 2007
ER -