In recent years there has been a phenomenal increase in the use of networking. Both Internet and Intranets have become a standard infrastructure to exchange information. Due to their success it has become possible to ooer services that were unthinkable ve years ago: electronic commerce, distance learning, remote libraries, etc. Cryptographic solutions are essential to protect computer assets and more speciically for electronic commerce to become successful. Moreover, the future growth of the Internet depends on how well it is or will be secured. Two proposals for providing cryptographic protection for networks are the SESAME security architecture and the SSL solution. The purpose of this paper is to compare these two solutions: where they t in the TCP/IP model, what security services they provide, what cryptographic technology is used by each solution, the applications supported, the availability and nally a description of their limitations. The paper nishes by introducing two schemes for the integration of SESAME and SSL.