We revisit and analyze the security foundation of universal re-encryption and show a subtlety in it, namely, that it does not require that the encryption.
Aug 3, 2018 · The notion of universal re-encryption is an established primitive used in the design of many anonymity protocols.
It allows anyone to randomize a ciphertext without changing its size, without first decrypting it, and without knowing who the receiver is (i.e., not knowing ...
A new definition is introduced that includes the properties that are needed for a re-encryption cryptosystem to achieve key anonymity in both the encryption ...
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The notion of universal re-encryption is an established primitive used in the design of many anonymity protocols. It allows anyone to randomize a ciphertext ...
Request PDF | On Aug 3, 2018, Adam L. Young and others published Semantically Secure Anonymity: Foundations of Re-encryption: 11th International Conference, ...
Anonymity with identity escrow attempts to allow users of a service to remain anonymous ... Semantically Secure Anonymity: Foundations of Re-encryption. Chapter © ...
[PDF] Universal Re-encryption for Mixnets - Applied Cryptography Group
crypto.stanford.edu › univrenc
We say that UCS is semantically secure under re-encryption if for any adversary A with resources polynomial in K, the probability pr[Expuss. A (UCS,k) = '1 ...
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We present a positive obfuscation result for a traditional cryptographic functionality. This positive result stands in contrast to well-known impossibility ...
Semantically secure encryption and re-encryption are examples of such schemes. Obfuscating Probabilistic Circuits. It is not hard to see that deterministic ...