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In this work we construct efficient aggregate signatures from the RSA assumption in the synchronized setting. In this setting, the signing algorithm takes as input a (time) period tt as well the secre...
Removing the Strong RSA Assumption from Arguments over the Integers
Public-key cryptography Commitment schemes Interactive arguments of knowledge
2016/2/23
Committing integers and proving relations between them is an essential ingredient in many
cryptographic protocols. Among them, range proofs have shown to be fundamental. They consist of
proving that...
Short and Stateless Signatures from the RSA Assumption
Short and Stateless Signatures RSA Assumption
2009/6/23
We present the first signature scheme which is “short”, stateless and secure under the RSA
assumption in the standard model. Prior short, standard model signatures in the RSA setting
required either...
Recently Victor Shoup noted that there is a gap in the widely-believed security
result of OAEP against adaptive chosen-ciphertext attacks. Moreover,
he showed that, presumably, OAEP cannot be proven...