Client Testimonials:

"Cryptlib's high-level functions enable me to effect complex S/MIME
transformations with less setup and fewer function calls than other S/MIME
products I considered. At the same time, access to its low-level properties
and functions is invaluable in determining during interoperability testing
exactly where encryption, signing, and certificate problems lie.

Peter Gutmann, the developer, has always responded quickly and usefully to
my comments and questions. The few enhancements I requested (e.g. InterBase support) were provided quickly and correctly. Cryptlib should be the reference standard for security toolkits."

Bill Hansen - Kleinschmidt Inc, Deerfield, IL, USA

"Cryptlib has been integrated into our MailRules software in order to offer secure, encrypted information to our customers. Demand for secure
information from our customers has been increasing at a rapid rate over the last few months. MailRules has worldwide customers in a wide variety of industries such as Government, Petroleum, Retail, Telecommunications, Payroll and eCommerce. MailRules can check for incoming messages based on the sender or subject of the e-mail. These messages are unpacked, unencrypted then placed into specified input folders."

Mike Mohanbhai, CEO - ComputerWorks, New Zealand

"In all, I believe Cryptlib is a fantastic library. It’s clear that Peter Gutmann has meticulously thought through the major issues in designing a cryptographic library. Cryptlib should be the model for people interested in properly implementing cryptography within their products."

Dr. Zulfikar Ramzan - IP Dynamics Inc, USA

"We have successfully used Cryptlib to deliver a smart card based PKI system to a Local Government Authority in the United Kingdom. The PKI is currently being used to manage SSL certificates that control access to the Authority's web site. Cryptlib was initially chosen due to it's Open Source licensing and breadth of functionality. During development we found that the support available through the mailing list was helpful and responsive. We hope to explore Cryptlib's functionality further in future projects."

Gregg Kirkpatrick - Ripple Systems, Australia