3 securenet \- Digital Pathways SecureNet Key remote authentication box
7 box is used to authenticate connections to Plan 9 from a foreign system
10 machine or plain terminal.
11 The box, which looks like a calculator,
12 performs DES encryption with a key held in its memory.
13 Another copy of the key is kept on the authentication server.
14 Each box is protected from unauthorized use by a four digit PIN.
16 When the system requires SecureNet authentication,
17 it prompts with a numerical challenge.
18 The response is compared to one
19 generated with the key stored on the authentication server.
22 Turn on the box and enter your PIN at the
28 Enter the challenge at
33 Then type to Plan 9 the response generated by the box.
34 If you make a mistake at any time, reset the box
37 The authentication server compares the response generated by the box
38 to one computed internally. If they match, the user is accepted.
40 The box will lose its memory if given the wrong PIN
41 five times in succession or if its batteries are removed.
43 To reprogram it, type a
51 prompt, enter your key, which consists of eight three-digit octal numbers.
52 While you are entering these digits,
53 the box displays a number ranging from 1 to 8 on the left side of the display.
54 This number corresponds to the octal number you are entering,
55 and changes when you enter the first digit of the next number.
57 When you are done entering your key, press
63 prompt, enter a PIN for the box.
65 After you confirm by retyping the PIN at the
67 prompt, you can use the box as normal.
69 You can change the PIN using the following procedure.
70 First, turn on the box and enter your current PIN at the
76 this will return you to the
79 Enter your PIN again, followed by
85 on the right side of the display.
92 prompt; follow the instructions above for entering a PIN.
97 performs the same encryption as the
102 The entered challenge, a decimal number between 0 and 100000,
103 is treated as a text string with trailing binary zero fill to 8 bytes.
104 These 8 bytes are encrypted with the DES algorithm.
105 The first four bytes are printed on the display as hexadecimal numbers.
106 However, when set up as described,
107 the box does not print hexadecimal digits greater than 9.
108 Instead, it prints a 2 for an A, B, or C, and a 3 for a D, E, or F.
115 print, the hexadecimal digits are printed.
116 This is not recommended, as letters are
117 too easily confused with digits on the
124 Digital Pathways, Mountain View, California
126 The box is clumsy to use and too delicate.
127 If carried in a pocket,
128 it can turn itself on and wear out the batteries.