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Why ZSentry?

NMA ZSentry provides an affordable, secure service platform with strong authentication and high usability. ZSentry also supports PKI/X.509 and PGP, and extends these standards in significant ways.

Most email security solutions fail to satisfy privacy and security regulation requirements. They expose customers to costly breaches which, together with identity theft, spam, and email spoofing, have sharply curtailed the business use of email.

Uniquely, with NMA ZSentry you have no targets online. Your login credentials and your keys are not stored anywhere, so that there is no password or user key list that could be attacked online. Without a key anywhere to be found, all your files, which are encrypted, are just gibberish if captured by an attacker. ZSentry further protects your identity, with name and email address authentication provided by cryptographic challenge-response, with two-factor authentication and anti-spoofing.

The table below shows the major information security technologies that are available today, with secure email solution examples categorized by their dominant technology use.
TECHNOLOGY PGP PKI/X.509 IBE ZSENTRY
Secure Email Solutions PGP
HushMail
Axway/Tumbleweeb
Entrust
Cryptzone
Microsoft/Outlook
Rpost
RSA
Verisign
ZixCorp
MessageGuard
Voltage
ZSentry Mail
Zmail Basic
Email solutions by Postini and Google are not included because they only provide SSL services and, thus, fall short as secure email solutions. Product and company names cited may be copyrighted and trademarked by their owners.

Security and Usability
Chart, © E. Gerck, 2008The two most important requirements of an information system for business use are security and usability. In a point-by-point comparison, various performance criteria can be evaluated for different implementations of the same technology, and then summarized in terms of security and usability.

The graph provides a visualization of the relative positions of each information security technology in terms of security and usability, measured using secure email as an application example. The bubbles represent uncertainty due to implementation differences. The graph uses data from Gerck, E. (2007), who applied scientific, peer-reviewed metrics to measure Usability and Security.

NMA ZSentry Mail (Zmail) solves the quest for email security and usability in that ZSentry is qualitatively better in both security and usability than PGP, PKI/X.509, IBE and other technologies [*].

Moreover, ZSentry also supports PKI/X.509 and PGP, and extends these standards in significant ways. An important issue solved, of course, is the problem of initial contact. ZSentry allows secure first contact and reply without previous interaction (e.g., exchanging passwords, requiring registration) or work (e.g., searching a directory, solving puzzles), and provides a number of life-cycle control functions, including release and expiration. ZSentry also supports SAML and SSO, so that it can be part of a federated-identity ecosystem.

In addition to protecting your business information, and satisfy HIPAA, SOA and other regulatory obligations, ZSentry can become a key enabler to enhance functionality, maintain a competitive advantage, grow your business, reduce costs, improve cash flow, and use your existing infrastructure while taking you forward.

Disconnected business processes and applications, and apparently limited software, can now become key assets in a renewed IT environment and generate higher returns on existing investments. Moreover, your staff need not learn anything new, or a new paradigm. After account setup, they continue to work using a familiar office application such as Outlook and Word, while ZSentry reduces to a minimum the demands on what users must learn and have to be trusted with.

Read more: Cut & Avoid CostLearn more

* References:

Gerck, E. (2007). Secure email technologies X.509/PKI, PGP, IBE and Zmail. In Corporate Email Management, Chapter 12, Edited by Krishna SJ, Raju E., pp.171-196, Hyderabad, India, ICFAI University Press. Available online at http://email-security.net/papers/pki-pgp-ibe-zmail.pdf.

Neppe, V. M. (2008). The email security-usability dichotomy: Necessary antinomy or potential synergism?. In Telicom, 21:3, May-June, pp.15-31. Available online at http://email-security.net/papers/usable-secure-email.pdf.

Whitten, A. and Tygar, J. D. (1999). Why Johnny can't encrypt: A usability evaluation of PGP 5.0. In Proceedings of the 8th USENIX Security Symposium. Available online at http://www.gaudior.net/alma/johnny.pdf

See also: Red FlagsLearn more

Main Technical Notes
Overview   Key Features   ZSentry App   ZSentry Zero   API   ZS / PKI / PGP   SAML & SSO
  Security   Usability   HIPAA & HITECH   Experience   Why ZSentry?   Red Flags   SUMMARY

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