Forward-Secure Public-Key Encryption Scheme with Tamper Evidence

Since the first practical and secure public-key encryption scheme without random oracles proposed by Cramer and Shoup in 1998, Cramer-Shoup's scheme and its variants remained the only practical and secure public-key encryption scheme without random ...

A timed-release cryptosystem allows a sender to encrypt a message so that only the intended recipient can read it only after a specified time. We formalize the concept of a secure timed-release public-key cryptosystem and show that, if a third party is ...

Cryptographic computations are often carried out on insecure devices for which the threat of key exposure represents a serious and realistic concern. In an effort to mitigate the damage caused by exposure of secret data (e.g., keys) stored on such ...