Titlebook: Security and Cryptography for Networks; 8th International Co Ivan Visconti,Roberto Prisco Conference proceedings 2012 Springer-Verlag Berli

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History-Free Sequential Aggregate Signaturesite compression, some notion of unforgeability is preserved. Recently, Eikemeier et al. (SCN 2010) considered the notion of . sequential aggregation for message authentication codes, where the sequentially-executed aggregation algorithm does not need to receive the previous messages in the sequence

arcane

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gustation

Decentralized Dynamic Broadcast Encryptions the data to the registered users according to a specific policy (the target set), and the users that decrypt the data if they are authorized by the policy. Public-key broadcast encryption can be seen as removing this special role of encryptor, by allowing anybody to send encrypted data. In this pa

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Time-Specific Encryption from Forward-Secure Encryptioncryption with additional functionality where an encryptor can specify a suitable time interval, meaning that the ciphertexts may only be decrypted within this time interval. In this work, we propose a new methodology for designing efficient TSE scheme by using forward-secure encryption (FSE), and ba

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Improved Secure Two-Party Computation via Information-Theoretic Garbled Circuitsh relies on the . (IT) Garbled Circuit (GC), which is more efficient than Yao’s GC on shallow circuits. When evaluating a large circuit, we “slice” it into thin layers and evaluate them with IT GC. Motivated by the client-server setting, we propose two variants of our construction: one for semi-hone

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Implementing AES via an Actively/Covertly Secure Dishonest-Majority MPC Protocolshonest majority of active adversaries. We present a number of modifications to the protocol; the first reduces the security to covert security, but produces significant performance enhancements; the second enables us to perform bit-wise operations in characteristic two fields. As a bench mark appli

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