October 6, 1998
For Immediate Release

Technical Communications Corporation
100 Domino Drive
Concord, MA 01742 - 2892
(978) 287 - 5100
Contact: Janet LeClair, Investor Relations

 TCC AND WPI TO JOINTLY DEVELOP NEXT GENERATION PUBLIC KEY-BASED CIPHER X® NETWORK SECURITY SYSTEMS

CONCORD, MASSACHUSETTS -- Technical Communications Corporation (NASDAQ:TCCO), a leader in securing mission-critical communication networks, today announced that it is partnering with Worcester Polytechnic Institute (WPI), a leading technical university based in Worcester, MA. WPI, which has a solid reputation for expertise in cryptographic hardware and software technologies, will complement TCC's product development effort to expedite the development of elements of an advanced "public key" management system for TCC's Cipher X family of high-speed data security products.

The implementation of "public key" management technology will enhance the scalability, ease-of-use, and security in TCC's products, as well as add strong user authentication. The "public key" management protocols used will conform to ANSI X9F banking community standards.

Carl H. Guild, Jr., TCC's Chairman and CEO, stated, "TCC will utilize WPI's expertise in elliptic curve cryptography and its fast implementation in hardware and software, as well as its research in network protocols and other "public key" technologies. With this collaboration, TCC will be able to bring to market more quickly an efficient, robust and standards-based "public key" cryptographic technology that best meets the needs of demanding mission-critical network environments."

WPI is one of only a handful of universities that offers a concentration in cryptography and network security. Its Cryptography and Information Security Research Laboratory has extensive archives and on-going research in cryptography and is widely known for its cryptographic research efforts, particularly its applied research in the field of optimized hardware implementations of high-speed cryptographic transforms.

About TCC

Technical Communications Corporation's products and systems secure mission-critical networks for governments, corporations and financial institutions around the world. With over 35 years of experience, TCC is the trusted supplier for organizations that place a high value on their data and its successful transmission.

About WPI

Founded in 1865, WPI is the nation's third oldest technological university. Since its founding days, WPI has been a pioneer in technological education. Its teaching approach is increasingly being viewed as a model for reform in technological higher education in the United States by organizations such as the National Science Foundation, the National Research Council, and the American Society for Engineering and Education. ABET, the Accreditation Board for Engineering and Technology, recently chose WPI to serve as one of just two test sites for new outcomes-oriented accreditation criteria that will soon be applied to all engineering and technology programs in the U.S.

Matters discussed in this news release, including any discussions of or impact, expressed or implied, on the Company's anticipated operating results and future earnings contain forward looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended. The Company's operating results may differ significantly from the results indicated by such forward-looking statements. The Company's operating results may be affected by many factors including but not limited to, the sales, engineering, marketing, and manufacturing personnel, and the possibility of political instability in the Company's foreign markets. These and other risks are detailed from time to time in the Company's filings with the Securities & Exchange Commission.

Cipher X is a registered trademark of Technical Communications Corporation