Fully Secure Ciphertext-Policy Attribute-Based Encryption with Constant Size Ciphertext

In an anonymous ciphertext-policy attribute-based encryption (CP-ABE) scheme, the encryptor-specified access structure is hidden in ciphertexts. The decryptor gets his secret key from a trust authority according to his attributes. However, he cannot ...

In PKC 2010, Herranz et al. proposed the first fully threshold ciphertext policy attribute-based encryption CP-ABE scheme with constant length ciphertext. However, their scheme is selectively secure with respect to the chosen plaintext attack. They have ...

Attribute Based Encryption ABE is a promising and increasingly versatile paradigm. Given the many potential uses of ABE schemes, constructing efficient schemes that provide recipient anonymity via policy hiding while ensuring constant-size secret key ...