(57) ABSTRACT A system and method for communicating information between a first party
and a second party, comprising the steps of receiving, by an intermediary, an identifier of …

Cloud computing becomes increasingly popular for data owners to outsource their data to
public cloud servers while allowing intended data users to retrieve these data stored in …

Cloud computing has become prevalent due to its nature of massive storage and vast
computing capabilities. Ensuring a secure data sharing is critical to cloud applications …

To date, the growth of electronic personal data leads to a trend that data owners prefer to
remotely outsource their data to clouds for the enjoyment of the high-quality retrieval and …

Cipher text-Policy Attribute-Based Proxy Re-Encryption (CP-ABPRE) extends the traditional
Proxy Re-Encryption (PRE) by allowing a semi-trusted proxy to transform a cipher text under …

Uniform randomness beacons whose output can be publicly attested to be unbiased are
required in several cryptographic protocols. A common approach to building such beacons …

Proxy re-encryption (PRE) allows a semi-trusted proxy to convert a ciphertext originally
intended for Alice into one encrypting the same plaintext for Bob. The proxy only needs a re …

In a proxy re-encryption scheme, a semi-trusted proxy can transform a ciphertext under
Alice's public key into another ciphertext that Bob can decrypt. However, the proxy cannot …

With the rapid development of cloud computing, an increasing number of individuals and
organizations are sharing data in the public cloud. To protect the privacy of data stored in the …

In a proxy re-encryption system, a semi-trusted proxy can convert a ciphertext originally
intended for Alice into a ciphertext intended for Bob, without learning the underlying …