Welcome to the resource topic for 2014/696
Title:
Security Proofs for the BLT Signature Scheme
Authors: Ahto Buldas, Risto Laanoja, Ahto Truu
Abstract:We present security proofs for the BLT signature scheme in the model, where hash functions are built from ideal components (random oracles, ideal ciphers, etc.). We show that certain strengthening of the Pre-image Awareness (PrA) conditions like boundedness of the extractor, and certain natural properties (balancedness and the so-called output one-wayness) of the hash function are sufficient for existential unforgeability of the BLT signature scheme.
ePrint: https://eprint.iacr.org/2014/696
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