RDEMO:                 Demonstation Program for RSAREF(TM)                            User's Manual                           RSA Laboratories                            March 21, 1994                             Version 2.0    Copyright (C) 1991-4 RSA Laboratories, a division of RSA Data                            Security, Inc.This note describes RDEMO, a program that demonstrates featuresof the RSAREF cryptographic toolkit.RDEMO is a simple program that exercises RSAREF's cryptographicoperations. With RDEMO, you can perform the cryptographic operationsof signing, sealing, verifying, and opening files, as well asgenerating key pairs. There can be up to three different key pairs,so you can simulate a multi-user environment.RDEMO has a main menu with six commands. The main menu is displayedwhen you start up RDEMO, and is displayed again after RDEMO performsa command. After you select a command RDEMO prompts for parameterssuch as file names.RDEMO's commands and their parameters are summarized in the followingtable.Note that these commands have the same names, but differentparameters and functions than those in version 1.0. There is nomaximum file size in the new program. The old program has beenrenamed to OLDRDEMO.          RDEMO COMMAND                       PARAMETERSS - Sign a file                 name of file  digest content                which private key to sign with  encrypt digest with           message-digest algorithm    private key                 name of file in which to save                                  signatureV - Verify a signed file        name of file  digest content                which public key to verify with  decrypt signature with        message-digest algorithm    public key                  name of file in which signature is  compare result to digest        savedE - sEal a file                 name of file  generate random data          name of file in which to save    encryption key, IV(*)          encrypted content  encrypt key with public       which public key to seal with    key                         data encryption algorithm  encrypt content with key      names of files in which to save                                  encrypted key and IVO - Open a sealed file          name of file in which encrypted  decrypt encrypted key           content is saved    with private key            name of file in which to save  decrypt encrypted content       recovered content    with key                    which private key to open with                                data encryption algorithm                                names of files in which encrypted key                                  and IV are savedG - Generate a keypair          length of key in bits (508-1024)  generate RSA public/          name of file in which to save key pair    private key pairQ - Quit(*) Initialization vector for cipher-block chaining mode.NOTES  1. You select keys by number: '1', '2', or '3'. The first two key     pairs are built in. The third is generated by RDEMO's 'Generate a     key pair' command.  2. How you specify file names to RDEMO depends on your operating     system. RDEMO recognizes the special file name '-' as the     standard output stream (typically the screen display). You can     usually cancel an RDEMO command by giving a blank line in     response to a prompt for a parameter.  3. RDEMO reads and writes all files except the key pair file (which     it only writes) in binary mode.  4. Message-digest algorithm choices are MD2 and MD5.  5. For data encryption, the choices are DES, DESX, two-key     triple-DES (DES-EDE2), and three-key triple-DES (DES-EDE3).  6. If you want RDEMO not to display the main menu or any prompts,     put the string '-s' on the command line when you start RDEMO.     This is useful when RDEMO's input stream comes from a script     file.  7. RDEMO seeds RSAREF's random number generator with a fixed value.     As a result, RDEMO sessions with the same commands and     parameters produce the same results. The use of a fixed seed     value is not recommended for non-demonstration applications.