An encryption chaining mode takes plaintext block N, generates encryption key N by combining, preferably by XOR, encryption key N\u22121 and plaintext block N\u22121 and encrypts plaintext block N using an encryption algorithm with encryption key N to output ciphertext block N. A user at a terminal, communicatively coupled to the secure server by a secure link, can obtain web pages from web sites in a network, in encrypted form, via the secure link. , x>1; and a p-type MIS transistor comprising a second gate insulating film and a second gate electrode including an MSiy film formed on the second gate insulating film, where y is not less than 0 and less than 1, i. A first pillow support member is mounted on the inner member and supports the first retainer pillow to maintain the pillow’s outer diameter. A comprehensive network manager process provides management functions to allow communication with mobile phone users outside of the service network and allows for efficient communication with groups of users within the service network. The method comprises generating a digital signal, converting the digital signal to an analog signal, and generating an amplified analog signal having distortions.