Cyber-attacks are becoming more common against Internet users due to the increasing
dependency on online communication in their daily lives. X. 509 Public-Key Infrastructure …

The problem of source separation is an inductive inference problem. There is not enough
information to deduce the solution, so one must use any available information to infer the …

Identity-Based Encryption (IBE) which simplifies the public key and certificate management
at Public Key Infrastructure (PKI) is an important alternative to public key encryption …

Identity-based encryption (IBE) is an exciting alternative to public-key encryption, as IBE
eliminates the need for a Public Key Infrastructure (PKI). The senders using an IBE do not …

We introduce the notion of certificate-based encryption. In this model, a certificate—or, more
generally, a signature—acts not only as a certificate but also as a decryption key. To decrypt …

Abstract In Ciphertext-Policy Attribute-Based Encryption (CP-ABE), a user secret key is
associated with a set of attributes, and the ciphertext is associated with an access policy …

Abstract In ACM CCS 2008, Boldyreva et al. proposed an elegant way of achieving an
Identity-based Encryption (IBE) with efficient revocation, which we call revocable IBE (RIBE) …

Abstract Identity-Based Encryption (IBE) offers an interesting alternative to PKI-enabled
encryption as it eliminates the need for digital certificates. While revocation has been …

As a one-to-many public key encryption system, attribute-based encryption (ABE) enables
scalable access control over encrypted data in cloud storage services. However, efficient …

We introduce the notion of public key encryption with secure key leasing (PKE-SKL). Our
notion supports the leasing of decryption keys so that a leased key achieves the decryption …