@inproceedings{2000624,
author={Manuel Barbosa and Pooya Farshim},
title={Secure Cryptographic Workflow in the Standard Model},
booktitle={Progress in Cryptology - INDOCRYPT 2006},
ISBN={978-3-540-49767-7},
publisher={Springer Verlag},
pages={379--393},
month={November},
year={2006},
abstract={Following the work of Al-Riyami et al. we define the notion of key encapsulation mechanism supporting cryptographic workflow (WF-KEM) and prove a KEM-DEM composition theorem which extends the notion of hybrid encryption to cryptographic workflow. We then generically construct a WF-KEM from an identity-based encryption (IBE) scheme and a secret sharing scheme. Chosen ciphertext security is achieved using one-time signatures. Adding a public-key encryption scheme we are able to modify the construction to obtain escrow-freeness. We prove all our constructions secure in the standard model.},
abstract-url={http://www.cs.bris.ac.uk/Publications/pub_master.jsp?id=2000624},
url={http://www.cs.bris.ac.uk/Publications/Papers/2000624.pdf},
keyword={Cryptography},
pubtype={102}
}