The emergence of the Internet as a trusted medium for commerce and communication has made cryptography an essential component of modern information systems. Cryptography provides ...
In 1998, Blaze, Bleumer, and Strauss proposed an application called atomic proxy re-encryption, in which a semi-trusted proxy converts a ciphertext for Alice into a ciphertext for...
Giuseppe Ateniese, Kevin Fu, Matthew Green, Susan ...
We present a system for secure telephone conferences (stc) over the internet. The system ensures participant authentication via x.509 certificates, such that every participant of...
When employing cryptographic tunnels such as the ones provided by Secure Shell (SSH) to protect their privacy on the Internet, users expect two forms of protection. First, they aim...
Maurizio Dusi, Alice Este, Francesco Gringoli, Luc...
In distributed systems users need to share sensitive objects with others based on the recipients' ability to satisfy a policy. Attribute-Based Encryption (ABE) is a new parad...