International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California / Over the past two years the design and implementation of secure Internet based data sharing tools which could enable geographically remote contractor teams to access flight and test telemetry data securely over the Internet were presented [1] [2]. Key technologies facilitating these capabilities were the Hypertext Transfer (HTTP) protocol , the Secure Sockets Layer (SSL) protocol, and the Secure Multipurpose Internet Mail Extension (S/MIME) specification . This year we discuss utilizing the Secure Electronic Transaction (SET) specification in tandem with HTTP, SSL, and S/MIME to deploy a system for securely selling telemetry data over the Internet.

International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Last year the design and implementation of a secure World Wide Web based data sharing tool which could enable geographically remote contractor teams to access flight and test telemetry data securely over the Internet was presented [1]. Key technologies facilitating this capability were the Hypertext Transfer Protocol (HTTP) and the Secure Sockets Layer (SSL) capable web browsers and web servers. This year the applicability of the Secure Multipurpose Internet Mail Extension (S/MIME) specification is being evaluated for the transport of telemetry data via secure E-mail.

ABSTRACT TRUSTED MAIL GATEWAY AYLA, Erkut Sinan M.S., Department of Computer Engineering Supervisor: Dr. Attila &Ouml / zgit December 2004, 135 pages The study aims to make contribution to solve mail security problems. The Trusted Mail Gateway provides a domain with the basic security services that are message integrity, confidentiality, non&amp / #8208 / repudiation, origin authentication and availability while message (e&amp / #8208 / mail) being delivered through the Internet. It generates S/MIME digital signatures and performs S/MIME encryption on behalf of the domain using secret key cryptography and public&amp / #8208 / key techniques and generating Cryptographic Message Syntax (CMS) data to provide origin authenticity, integrity and v confidentiality. It applies anti&amp / #8208 / virus control and protection, spam filtering and content check to both incoming mails to the domain and outgoing mails from the domain to prevent attacks against availability. Also, the Trusted Mail Gateway provides intra&amp / #8208 / domain security. It keeps e&amp / #8208 / mail messages in corresponding mailboxes as encrypted messages. Trusted Mail Gateway processes all the mails passing through and records processing results in database as notary information. Moreover, it establishes trust relations with other trusted domains and exchanges notary information with them via a secure channel. Keywords: S/MIME, security services, mail protocols, domain, notary

<p>The use of insecure networks -such as the Internet- to send and receive information has made the need for preventing unauthorised people reading it yet more important. One of the easiest way to do this is through public key cryptography. However, the problem with this solution is how to tie a specific public key to a certain subject. This is solved by letting a trusted third party issue a certificate that holds, as a minimum, the name of the subject and the subject's public key along with the issuer's digital signature on the information. The rules we make for issuing, revoking and verifying of certificates and the entities that are being used to do so are called PKI - Public Key Infrastructure. In this thesis we shall se what PKI really is in a more detailed way and which entities it constitutes of. We will also investigate some of the areas in which we could make use of it, for instance secure e-mail and virtual private networks. Next, we will look into some of the drawbacks with PKI and what you should think of in order to aviod these. Finally, we'll give recommendations for the implementation itself. As for the theory of cryptography, the basics is presented to the interested reader in a separate appendix.</p>

The use of insecure networks -such as the Internet- to send and receive information has made the need for preventing unauthorised people reading it yet more important. One of the easiest way to do this is through public key cryptography. However, the problem with this solution is how to tie a specific public key to a certain subject. This is solved by letting a trusted third party issue a certificate that holds, as a minimum, the name of the subject and the subject's public key along with the issuer's digital signature on the information. The rules we make for issuing, revoking and verifying of certificates and the entities that are being used to do so are called PKI - Public Key Infrastructure. In this thesis we shall se what PKI really is in a more detailed way and which entities it constitutes of. We will also investigate some of the areas in which we could make use of it, for instance secure e-mail and virtual private networks. Next, we will look into some of the drawbacks with PKI and what you should think of in order to aviod these. Finally, we'll give recommendations for the implementation itself. As for the theory of cryptography, the basics is presented to the interested reader in a separate appendix.