It has been conventional wisdom that, for e-commerce to fulfil its potential, each party to a transaction must be confident about the identity of the others. Digital signature tec...
Recently, at Crypto 2008, Boneh, Halevi, Hamburg, and Ostrovsky (BHHO) solved the longstanding open problem of "circular encryption," by presenting a public key encrypti...
Adaptively-secure encryption schemes ensure secrecy even in the presence of an adversary who can corrupt parties in an adaptive manner based on public keys, ciphertexts, and secret...
Abstract. A standard tool for secure remote access, the SSH protocol uses publickey cryptography to establish an encrypted and integrity-protected channel with a remote server. How...
A multi-signature scheme enables a group of signers to produce a compact, joint signature on a common document, and has many potential uses. However, existing schemes impose key s...