Commercial encryption

Why Commercial Encryption? Encryption, long the province of the military and diplomatic communities, is becoming of vital importance in commercial communications as well [1,2,3]. The growing commercial interest in encryption can be traced to two basic trends: • The increased use of satellite, microwave, cellular mobile and other forms of radio communication which allow illicit interception of communications. • The increased use of computers, providing the interceptor with computer readable information which can be inexpensively edited to sort the “wheat” from the “chaff.”