dotkey95 - Dotkey95 is a One-Time KEY calculator for Windows 95/98/NT4.0 Version 0.8.0 Oct 23, 1998 Copyright (C) 1996-1998 NEC Corporation All rights reserved. Table of contents 1. Description 2. Disclaimer 3. Distribution Package 4. Features 5. Installation 6. Usage 7. Menu 8. Option 9. Other feature 10. Notice 11. Bug reports, suggestions, ... 1. Description "dotkey95" is a one-time password calculator for Windows95, 98 and NT4.0. With dotkey95, you don't have to do anything but copy a challenge on the clipboard and input your passphrase to login a remote host with a one-time password. When you login a remote host by TELNET or FTP via network, your password will flow over the network in clear. The one-time password solves this problem, and many systems have been developed. For example, popular systems for the UNIX are S/KEY and OPIE systems and they require many user operations. "dotkey95" do these operations automatically, making it easy to use those systems. 2. Disclaimer 1. This software may be used without fee. 2. NEC Corporation accepts no responsibility for damages resulting from the use of this software and makes no warranty. 3. You must not sell a software package which includes this software package. 4. You can redistribute this package as long as you don't modify any of files in this package and you deliver all the files in this package. 3. Distribution Package These files are included in this distribution package. o dotkey95.exe dotkey95 executable file o readme.txt Release Note (English) o readme-j.txt Release Note (Japanese) o src.zip source files of dotkey95 4. Features o RFC 1760, 1938 compliant o Challenge message formats of S/KEY for BSD/OS are available. o A small passphrase input dialog pops up automatically o Selects a hash function, a sequence number and a seed automatically o Pastes the one-time password into the target application automatically ex.) telnet.exe, Tera Term, BOW, other telnet, ftp.exe, ... o Memory cache of passphrase o Task tray application o A warning message pops up if the sequence number is equal to 20, 10, 5, 4, 3, 2, 1 or 0. 5. Installation Copy dotkey95.exe on your local disk. 6. Usage 1. Run dotkey95.exe. Then the icon of the dotkey95 is added to the status area. The left click on the icon changes the state of this function. When the color of the icon is blue, this function is enabled. 2. Select an area which includes a challenge such as "otp-md5 xxx yyyyyyy" or "s/key xxx yyyyyyy". 3. Copy the area on the clipboard. Then a passphrase input dialog pops up automatically. 3. Input your passphrase. Then a one-time password will be written on the clipboard automatically. 4. Paste the one-time password into the target application. 7. Menu A menu pops up when you press the right mouse button on the icon. o About Displays the version information of dotkey95 o Repeat Mode If checked, a repeat mode dialog pops up o Clear Cache Clears memory cache of passphrase. o Option Displays the options dialog o Exit Exits dotkey95 8. Options o CRLF CRLF is added to the end of a one-time password on the clipboard. o Auto Paste After calculating the one-time password, it is pasted into the target application. o S/Key MD5 s/key is calculated as MD5. o Pass Cache If checked, memory cache of passphrase is enabled. Once you input your passphrase, you don't need to input your passphrase again and a one-time password is calculated automatically. o Confirmation When a one-time password is calculated by passphrase cache, the confirmation dialog pops up before the one-time password is sent. o Clear On Suspending When the system suspend operation, passphrase cache is cleared. 9. Other feature o With otpsock, once you input your passphrase, you don't need to copy the challenge on the clipboard and input passphrase again. 10. Notice o For security concern, give a special care for using memory cache of passphrase. It is recommended to use the password lock of the screen saver. 11. Bug reports, suggestions, ... Please let me know, if you find any bugs or have any suggestions. E-Mail: pochi@ccs.mt.nec.co.jp S/KEY is a trademark of Bellcore. MD4 and MD5 are trademarks of RSA Data Security, Inc. Windows and WindowsNT are registered trademarks of Microsoft Corporation.