Attached is the ascii version of the data sheet, followed by ordering information. Full protocol specifications will be available in about 2 weeks. Eric ---------------------------------------------------------------- Communication Security Corporation CS8191 Triple-DES Telephone Privacy Device With the growing number of tools available to assist in wiretapping, anyone using a telephone in the '90's is vulnerable to unwanted eavesdropping. With many of today's standard technologies, anyone can gain access to our most private of conversations. As a result, the telecommunications industry has an increasing need for private, secure voice communication devices. The Communication Security Corporation has dedicated its resources to addressing this need by designing the CS8191, our flagship product and the most secure telephone privacy protection available. Unsurpassed Security Truly open, encryption technology is at the heart of the CS8191 telephone security unit. With the press of a button, the CS8191 is activated. Within seconds your conversation is kept secure from the intrusion of any type of wiretapping. Open-Standard Encryption How are you assured that your tele-security unit is really working to protect your telecommunications? In truth, the "trust-us" proprietary solutions used by competing products are an indication of weak privacy protection. They "hide" from the user, the ability to verify proper functioning of the unit. Communication Security provides users with the best privacy protection by incorporating leading-edge encryption technology that utilizes the power of truly open standards. Our commitment to an open specification allows sophisticated users the ability to "check under the hood" and evaluate the security attributes of the system. Portable And Easy To Use The CS8191 has been designed to work with conventional analog telephone systems (POTS). The unit connects between your telephone and the wall, much like a telephone answering machine. Plug in the power, and that's it. In "clear mode" your telephone continues to work as it normally does. To begin an encrypted conversation, simply press the 'go secure' button and wait for the green light to come on. The system is easy to use and compact, making it the perfect telephone security solution for home, travel or office use. Superior Performance * As a standard component, Communication Security has incorporated a leading-edge speech coder for clarity unsurpassed in secure telephone devices, to date. * Voice clarity is virtually undisturbed whether the system is in secure or clear mode. * LED indicators on the unit let you know instantly that your call is being transmitted securely. Service And Support The Communication Security Corporation provides a one year warranty for all parts and labor. Upgrades are included in the price of the CS8191 and are available under the terms of the warranty. For More Information To get more information on securing your phone communications, send email to info@comsec.com or call (707) 577-0409, fax (707) 577-0413. Features Benefits * Open standard encryption Allows independent evaluation and verification of protocol and behavior * Excellent speech quality Superior clarity is assured with leading-edge speech coder as a standard component * Auto Secure Allows for secure, unattended operation for all-hours data protection * Small size and weight Makes the CS8191 the perfect solution for secure home, office or travel telephone communications Specifications: Modem * ITU V.32bis (14,400 bits/sec) Interfaces * Two buttons (Go Secure, Go Clear) * Two LEDs (Secure, Clear) * External power supply * Two modular phone jacks Power * Input voltage: 110 volts AC, 50-60 Hz. Approvals * FCC, part 15 and 68 Warranty * 12 months parts and labor Software Upgrades * One year of upgrades included in purchase price Voice Nodes * Clear voice * Secure voice Secure Mode Speech Compression * International standard GSM 06.10 full rate speech transcoding (13,000 bits/sec) Notes: * Specifications subject to change without notice. * Government regulations apply for export license. * Completing the circle of secure communication requires the receiving end of your call to also have a CS8191 unit connected to their phone. Cryptographic Details: * Unique session key generated for each conversation using Diffie-Hellman exponential key exchange (2048 bit modulus) (U.S. Patent No. 4,200,770 licensed by Cylink Corporation) * Defense against "man in the middle" active attack using interleave protocol combined with voice verification of six digit key name derived from the public exponentials * Hardware Random number generator based on Johnson noise * Three Key Triple-DES (168 bit key), operating in modified counter mode. * No back door, "Key-Escrow" or GAK * Open standard. Full protocol specifications available. Communication Security Corporation 1275 Fourth St. Suite 194 Santa Rosa, CA 95404 Tel: 707-577-0409 Fax: 707-577-0413 info@comsec.com ---------------------------------------------------------------- Yes, I want real telephone privacy protection! Send me ________ CS8191's at $995.00 each: $____________ Shipping and Handling: $_______10.00 California residents add sales tax: $____________ Total: $____________ I'm paying with Check or M/O ____ Visa / MC ____ Name on Card:______________________________ Card Number:_______________________________ Exp. Date:__________ Ship To: _________________________________________ _________________________________________ _________________________________________ __________________________________________ Allow 6-8 weeks for delivery. I am a US citizen or "Lawful Permanent Resident" Yes____ No____ Make checks payable to: Communication Security Corp. Mail or fax this order form to: Communication Security Corp. 1275 Fourth St., Suite 194 Santa Rosa, CA 95404 v: 707-577-0409 f: 707-577-0413