PGP Command Line 10.0 User guide

PGP® Command Line 10.0

User's Guide

Version Information

PGP Command Line User's Guide. PGP Command Line Version 10.0.0. Released March 2010.

Copyright Information

means, electronic or mechanical, for any purpose, without the express written permission of PGP Corporation.

Trademark Information

PGP, Pretty Good Privacy, and the PGP logo are registered trademarks of PGP Corporation in the US and other countries. IDEA is a trademark of Ascom

Tech AG. Windows and ActiveX are registered trademarks of Microsoft Corporation. AOL is a registered trademark, and AOL Instant Messenger is a

trademark, of America Online, Inc. Red Hat and Red Hat Linux are trademarks or registered trademarks of Red Hat, Inc. Linux is a registered trademark

of Linus Torvalds. Solaris is a trademark or registered trademark of Sun Microsystems, Inc. AIX is a trademark or registered trademark of International

Business Machines Corporation. HP-UX is a trademark or registered trademark of Hewlett-Packard Company. SSH and Secure Shell are trademarks of

SSH Communications Security, Inc. Rendezvous and Mac OS X are trademarks or registered trademarks of Apple Computer, Inc. All other registered

and unregistered trademarks in this document are the sole property of their respective owners.

Licensing and Patent Information

The IDEA cryptographic cipher described in U.S. patent number 5,214,703 is licensed from Ascom Tech AG. The CAST-128 encryption algorithm,

implemented from RFC 2144, is available worldwide on a royalty-free basis for commercial and non-commercial uses. PGP Corporation has secured a

license to the patent rights contained in the patent application Serial Number 10/655,563 by The Regents of the University of California, entitled Block

Cipher Mode of Operation for Constructing a Wide-blocksize block Cipher from a Conventional Block Cipher. Some third-party software included in PGP

Universal Server is licensed under the GNU General Public License (GPL). PGP Universal Server as a whole is not licensed under the GPL. If you would

like a copy of the source code for the GPL software included in PGP Universal Server, contact PGP Support (https://support.pgp.com). PGP Corporation

may have patents and/or pending patent applications covering subject matter in this software or its documentation; the furnishing of this software or

documentation does not give you any license to these patents.

Acknowledgments

This product includes or may include:

-- The Zip and ZLib compression code, created by Mark Adler and Jean-Loup Gailly, is used with permission from the free Info-ZIP implementation,

developed by zlib (http://www.zlib.net

). -- Libxml2, the XML C parser and toolkit developed for the Gnome project and distributed and copyrighted under

the MIT License found at http://www.opensource.org/licenses/mit-license.html

), web server

(http://www.apache.org/

), Jakarta Commons (http://jakarta.apache.org/commons/license.html) and log4j, a Java-based library used to parse HTML,

developed by the Apache Software Foundation. The license is at www.apache.org/licenses/LICENSE-2.0.txt

. -- Castor, an open-source, data-binding

framework for moving data from XML to Java programming language objects and from Java to databases, is released by the ExoLab Group under an

Apache 2.0-style license, available at http://www.castor.org/license.html

. -- Xalan, an open-source software library from the Apache Software

Foundation that implements the XSLT XML transformation language and the XPath XML query language, is released under the Apache Software

License, version 1.1, available at http://xml.apache.org/xalan-j/#license1.1

. -- Apache Axis is an implementation of the SOAP ("Simple Object Access

Protocol") used for communications between various PGP products is provided under the Apache license found at

http://www.apache.org/licenses/LICENSE-2.0.txt

. -- mx4j, an open-source implementation of the Java Management Extensions (JMX), is released under

an Apache-style license, available at http://mx4j.sourceforge.net/docs/ch01s06.html

. -- jpeglib version 6a is based in part on the work of the

Independent JPEG Group. (http://www.ijg.org/

) -- libxslt the XSLT C library developed for the GNOME project and used for XML transformations is

distributed under the MIT License http://www.opensource.org/licenses/mit-license.html

. -- PCRE Perl regular expression compiler, copyrighted and

. -- BIND Balanced Binary Tree Library

and Domain Name System (DNS) protocols developed and copyrighted by Internet Systems Consortium, Inc. (http://www.isc.org

) -- Free BSD

developed

by Network Time Protocol and copyrighted to various contributors. -- Lightweight Directory Access Protocol developed and copyrighted by OpenLDAP

OpenLDAP Foundation. The license agreement is at http://www.openldap.org/software/release/license.html

. Secure shell OpenSSH developed by

OpenBSD project is released by the OpenBSD Project under a BSD-style license, available at http://www.openbsd.org/cgi-

bin/cvsweb/src/usr.bin/ssh/LICENCE?rev=HEAD. -- PC/SC Lite is a free implementation of PC/SC, a specification for SmartCard integration is released

under the BSD license. -- Postfix, an open source mail transfer agent (MTA), is released under the IBM Public License 1.0, available at

http://www.opensource.org/licenses/ibmpl.php

. -- PostgreSQL, a free software object-relational database management system, is released under a

BSD-style license, available at http://www.postgresql.org/about/licence

. -- PostgreSQL JDBC driver, a free Java program used to connect to a

BSD-style license, available at http://jdbc.postgresql.org/license.html

. -- PostgreSQL Regular Expression Library, a free software object-relational

database management system, is released under a BSD-style license, available at http://www.postgresql.org/about/licence

. -- 21.vixie-cron is the Vixie

- JacORB, a Java object used to facilitate communication between processes written in Java and the data layer, is open source licensed under the GNU

Library General Public License (LGPL) available at http://www.jacorb.org/lgpl.html

open-source implementation of a CORBA Object Request Broker (ORB), and is used for communication between processes written in C/C++ and the

Vanderbilt University. The open source software license is available at http://www.cs.wustl.edu/~schmidt/ACE-copying.html

. -- libcURL, a library for

downloading files via common network services, is open source software provided under a MIT/X derivate license available at

http://curl.haxx.se/docs/copyright.html

under a BSD-style license, available at http://thunk.org/hg/e2fsprogs/?file/fe55db3e508c/lib/uuid/COPYING

libpopt, a library that parses command line options, is released under the terms of the GNU Free Documentation License available at

http://directory.fsf.org/libs/COPYING.DOC

communicate with the Intel Corporation AMT chipset on a motherboard, is distributed under the gSOAP Public License version 1.3b, available at

4

http://www.cs.fsu.edu/~engelen/license.html. -- Windows Template Library (WTL) is used for developing user interface components and is distributed

under the Common Public License v1.0 found at http://opensource.org/licenses/cpl1.0.php

. -- The Perl Kit provides several independent utilities used to

automate a variety of maintenance functions and is provided under the Perl Artistic License, found at

http://www.perl.com/pub/a/language/misc/Artistic.html

. -- rEFIt - libeg, provides a graphical interface library for EFI, including image rendering, text

rendering, and alpha blending, and is distributed under the license found at

http://refit.svn.sourceforge.net/viewvc/*checkout*/refit/trunk/refit/LICENSE.txt?revision=288

-- Java Radius Client, used to authenticate PGP Universal Web Messenger users via Radius, is distributed under the Lesser General Public License

(LGPL) found at http://www.gnu.org/licenses/lgpl.html

. -- Yahoo! User Interface (YUI) library version 2.5.2, a Web UI interface library for AJAX.

JSON-lib version 2.2.1, a Java library used to convert Java objects to JSON (JavaScript Object Notation) objects for AJAX. Distributed under the Apache

2.0 license, available at http://json-lib.sourceforge.net/license.html

. -- EZMorph, used by JSON-lib, is distributed under the Apache 2.0 license, available

at http://ezmorph.sourceforge.net/license.html

. -- Apache Commons Lang, used by JSON-lib, is distributed under the Apache 2.0 license, available at

http://commons.apache.org/license.html

. -- Apache Commons BeanUtils, used by JSON-lib, is distributed under the Apache 2.0 license, available at

http://commons.apache.org/license.html

. -- SimpleIni is an .ini format file parser and provides the ability to read and write .ini files, a common

configuration file format used on Windows, on other platforms. Distributed under the MIT License found at http://www.opensource.org/licenses/mit-

data structures and is distributed under the MIT License found at http://www.opensource.org/licenses/mit-license.html

Mike Sharov <[email protected]

>. -- Protocol Buffers (protobuf), Google's data interchange format, are used to serialize structure data in

Google Inc. All rights

reserved.

Additional acknowledgements and legal notices are included as part of the PGP Universal Server.

Export Information

Export of this software and documentation may be subject to compliance with the rules and regulations promulgated from time to time by the Bureau

of Export Administration, United States Department of Commerce, which restricts the export and re-export of certain products and technical data.

Limitations

The software provided with this documentation is licensed to you for your individual use under the terms of the End User License Agreement provided

with the software. The information in this document is subject to change without notice. PGP Corporation does not warrant that the information meets

your requirements or that the information is free of errors. The information may include technical inaccuracies or typographical errors. Changes may be

made to the information and incorporated in new editions of this document, if and when made available by PGP Corporation.

i

Contents

PGP Command Line Basics 1

Important Concepts 1

Getting Started 2

Installation 5

Overview 5

System Requirements 6

Windows 7 and Vista 6

Windows Server 2003 7

Windows XP 8

Windows 2000 9

IBM AIX 10

HP-UX 11i 10

Solaris 9 and 10 10

Red Hat Enterprise Linux and Fedora Core 10

Mac OS X 11

Installing on AIX 11

Changing the Home Directory on AIX 12

Uninstalling on AIX 13

Installing on HP-UX 13

Changing the Home Directory on HP-UX 14

Installing to a Non-Default Directory on HP-UX 14

Uninstalling on HP-UX 15

Installing on Mac OS X 15

Changing the Home Directory on Mac OS X 16

Uninstalling on Mac OS X 16

Installing on Red Hat Enterprise Linux or Fedora Core 17

Changing the Home Directory on Linux or Fedora Core 18

Uninstalling on Linux or Fedora Core 18

Installing on Solaris 19

Changing the Home Directory on Solaris 20

Uninstalling on Solaris 20

Installing on Windows 21

PGP Command Line for Windows and PGP Desktop on the Same System 21

To Install on Windows 21

Changing the Home Directory on Windows 22

Uninstalling on Windows 23

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PGP® Command Line 10.0 Contents

Licensing 25

Overview 25

License Recovery 26

Using a License Number 27

Using a License Authorization 28

Re-Licensing 29

Through a Proxy Server 30

The Command-Line Interface 33

Overview 33

Flags and Arguments 35

Flags 35

Arguments 36

Configuration File 38

Keyserver Configuration File Settings 42

Environment Variables 43

Standard Input, Output, and Error 44

Redirecting an Existing File 44

Entering Data 45

Specifying a Key 46

'Secure' Options 46

Passphrases 47

First Steps 49

Overview 49

Creating Your Keypair 50

Protecting Your Private Key 52

Distributing Your Public Key 52

Posting Your Public Key to a Keyserver 53

Exporting Your Public Key to a Text File 54

Getting the Public Keys of Others 54

Finding a Public Key on a Keyserver 54

Importing a Public Key from a Keyserver 55

Verifying Keys 56

Cryptographic Operations 59

Overview 60

Commands 60

--armor (-a) 60

--clearsign 62

--decrypt 64

--detached (-b) 66

--dump-packets, --list-packets 67

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PGP® Command Line 10.0 Contents

--encrypt (-e) 68

--export-session-key 72

--list-sda 73

--list-archive 73

--sign (-s) 74

--symmetric (-c) 76

--verify 77

Key Listings 79

Overview 79

Commands 80

--fingerprint 80

--fingerprint-details 81

--list-key-details 82

--list-keys (-l) 83

--list-keys-xml 84

--list-sig-details 85

--list-sigs 86

--list-userids 86

Working with Keyservers 87

Overview 87

Commands 88

--keyserver-disable 88

--keyserver-recv 89

--keyserver-remove 90

--keyserver-search 90

--keyserver-send 91

--keyserver-update 92

Managing Keys 95

Overview 97

Commands 97

--add-adk 97

--add-photoid 98

--add-preferred-cipher 98

--add-preferred-compression-algorithm 99

--add-preferred-email-encoding 100

--add-preferred-hash 100

--add-revoker 101

--add-userid 101

--cache-passphrase 102

--change-passphrase 103

--clear-key-flag 104

--disable 104

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PGP® Command Line 10.0 Contents

--enable 105

--export, --export-key-pair 105

--export-photoid 108

--gen-key 108

--gen-revocation 111

--gen-subkey 111

--get-email-encoding 112

--import 113

--join-key 114

--join-key-cache-only 118

--key-recon-send 119

--key-recon-recv-questions 120

--key-recon-recv 121

--remove 122

--remove-adk 122

--remove-all-adks 123

--remove-all-photoids 123

--remove-all-revokers 124

--remove-expiration-date 124

--remove-key-pair 125

--remove-photoid 125

--remove-preferred-cipher 126

--remove-preferred-compression-algorithm 126

--remove-preferred-email-encoding 127

--remove-preferred-hash 127

--remove-preferred-keyserver 128

--remove-revoker 128

--remove-sig 129

--remove-subkey 129

--remove-userid 130

--revoke 130

--revoke-sig 131

--revoke-subkey 132

--send-shares 132

--set-expiration-date 133

--set-key-flag 133

--set-preferred-ciphers 134

--set-preferred-compression-algorithms 134

--set-preferred-email-encodings 135

--set-preferred-hashes 136

--set-preferred-keyserver 136

--set-primary-userid 137

--set-trust 137

--sign-key 138

--sign-userid 139

--split-key 140

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PGP® Command Line 10.0 Contents

Working with Email 145

Overview 145

Encrypt Email 147

Sign Email 148

Decrypt Email 148

Verify Email 149

Annotate Email 149

Working with a PGP Key Management Server 151

Overview 152

New Terms and Concepts 152

Relationship with a PGP KMS 153

Authentication for PGP KMS Operations 153

--create-mak 155

--import-mak 156

--export-mak 157

--export-mak-pair 157

--request-cert 158

--edit-mak 159

--search-mak 160

--delete-mak 161

--create-mek-series 161

--edit-mek-series 162

--search-mek-series 163

--delete-mek-series 164

--create-mek 165

--import-mek 165

--export-mek 166

--edit-mek 167

--search-mek 168

--create-msd 168

--export-msd 169

--edit-msd 170

--search-msd 171

--delete-msd 172

--create-consumer 172

--search-consumer 173

Miscellaneous Commands 175

Overview 175

Commands 176

--create-keyrings 176

--help (-h) 177

--license-authorize 177

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PGP® Command Line 10.0 Contents

--purge-all-caches 177

--purge-keyring-cache 177

--purge-passphrase-cache 178

--speed-test 178

--version 178

--wipe 179

--check-sigs 180

--check-userids 180

Options 183

Using Options 183

Boolean Options 184

--alternate-format 184

--annotate 184

--archive 185

--banner 186

--biometric 186

--buffered-stdio 186

--compress, --compression 187

--details 187

--email 188

--encrypt-to-self 188

--eyes-only 188

--fast-key-gen 189

--fips-mode, --fips 189

--force (-f) 189

--halt-on-error 190

--keyring-cache 190

--large-keyrings 190

--license-recover 191

--local-mode 191

--marginal-as-valid 191

--master-key 192

--pass-through 192

--passphrase-cache 192

--photo 192

--quiet (-q) 193

--recursive 193

--reverse-sort, --reverse 193

--sda 193

--skep 194

--text-mode, --text (-t) 194

--truncate-passphrase 195

--verbose (-v) 195

--warn-adk 195

--wrapper-key 196

--xml 196

Integer Options 197

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PGP® Command Line 10.0 Contents

--3des 197

--aes128, --aes192, --aes256 197

--bits, --encryption-bits 198

--blowfish 198

--bzip2 199

--cast5 199

--creation-days 199

--expiration-days 200

--idea 200

--index 200

--keyring-cache-timeout 201

--keyserver-timeout 201

--md5 202

--passphrase-cache-timeout 202

--partitioned 202

--pgp-mime 203

--ripemd160 203

--sha, --sha256, --sha384, --sha512 204

--signing-bits 205

--skep-timeout 205

--threshold 205

--trust-depth 206

--twofish 206

--wipe-input-passes 206

--wipe-overwrite-passes 207

--wipe-passes 207

--wipe-temp-passes 207

--zip 207

--zlib 208

Enumeration Options 208

--auto-import-keys 208

--cipher 209

--compression-algorithm 209

--compression-level 210

--email-encoding 210

--enforce-adk 211

--export-format 211

--hash 212

--import-format 213

--input-cleanup 213

--key-flag 214

--key-type 215

--manual-import-key-pairs 215

--manual-import-keys 215

--overwrite 216

--sig-type 216

--sort-order, --sort 216

--tar-cache-cleanup 217

--target-platform 218

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PGP® Command Line 10.0 Contents

--temp-cleanup 218

--trust 218

String Options 219

--city, --common-name, --contact-email, --country 219

--comment 219

--creation-date 219

--default-key 220

--expiration-date 220

--export-passphrase 221

--home-dir 221

--local-user (-u), --user 221

--license-name, --license-number, --license-organization, --license-email 222

--new-passphrase 223

--organization, --organizational-unit 223

--output (-o) 223

--output-file 224

--passphrase 224

--preferred-keyserver 224

--private-keyring 225

--proxy-passphrase, --proxy-server, --proxy-username 225

--public-keyring 226

--recon-server 226

--regular-expression 226

--random-seed 227

--root-path 227

--share-server 227

--state 227

--status-file 228

--symmetric-passphrase 228

--temp-dir 229

List Options 229

--additional-recipient 229

--adk 229

--input (-i) 230

--question / --answer 230

--keyserver 231

--recipient (-r) 231

--revoker 232

--share 232

File Descriptors 233

--auth-passphrase-fd, auth-passphrase-fd8 233

--export-passphrase-fd, --export-passphrase-fd8 234

--new-passphrase-fd, --new-passphrase-fd8 234

--passphrase-fd, --passphrase-fd8 234

--proxy-passphrase-fd, --proxy-passphrase-fd8 234

--symmetric-passphrase-fd, --symmetric-passphrase-fd8 235

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PGP® Command Line 10.0 Contents

Lists 237

Basic Key List 237

The Default Key Column 238

The Algorithm Column 238

The Type Column 239

The Size/Type Column 239

The Flags Column 240

The Key ID Column 241

The User ID Column 242

Detailed Key List 242

Main Key Details 244

Subkey Details 251

ADK Details 253

Revoker Details 253

Key List in XML Format 254

Elements with fixed settings 258

X.509 Signatures 260

Detailed Signature List 261

Usage Scenarios 267

Secure Off-Site Backup 267

PGP Command Line and PGP Desktop 268

Compression Saves Money 268

Surpasses Legal Requirements 269

Quick Reference 271

Commands 271

Options 275

Environment Variables 280

Configuration File Variables 280

Codes and Messages 283

Messages Without Codes 283

Messages With Codes 284

Parser 284

Keyrings 285

Wipe 286

Encrypt 287

Sign 287

Decrypt 287

Speed Test 288

Key edit 288

Keyserver 295

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PGP® Command Line 10.0 Contents

Key Reconstruction 296

Licensing 297

PGP Universal Server 298

General 298

Exit Codes 307

Frequently Asked Questions 309

Key Used for Encryption 309

"Invalid" Keys 310

Maximum File Size 311

Programming and Scripting Languages 312

File Redirection 312

Protecting Passphrases 312

Searching for Data on a PGP KMS 315

Overview 315

Keyword Listing 316

Example Searches 318

More About Types 319

Time Fields 319

Boolean Values 319

Open PGP Algorithms 319

Open PGP Key Usage Flags 320

Key Modes 320

Index 321

1

This chapter describes some important PGP Command Line concepts and gives

you a high-level overview of the things you need to do to set up and use PGP

Command Line.

In This Chapter

Important Concepts................................................................................... 1

Getting Started .......................................................................................... 2

Important Concepts

The following concepts are important for you to understand:

 PGP Command Line: A software product from PGP Corporation that

automates the processes of encrypting/signing, decrypting/verifying, and

file wiping; it provides a command-line interface to PGP technology.

 command-line interface: An interface where you type commands at a

command prompt. PGP Command Line uses a command-line interface.

 keyboard input: PGP Command Line was designed so that all relevant

information can be entered at the command line, thus requiring no further

input from the keyboard to implement the commands.

 scripting: PGP Command Line commands can be easily inserted into

scripts to be used for automating tasks. For example, if your company

regularly copies a large database to an off-site backup and then stores it

there, PGP Command Line commands can be added to the script that does

this so that the database is encrypted before it is transmitted to the off-site

location and then decrypted when it arrives. PGP Command Line

commands are easily added to shell scripts or scripts written with scripting

languages (such as Perl or Python, for example).

 environment variables: Environment variables control various aspects of

PGP Command Line behavior; for example, the location of the PGP

Command Line home directory. Environment variables are established on

the computer running PGP Command Line.

1

PGP Command Line Basics

2

PGP® Command Line 10.0 PGP Command Line Basics

 configuration file variables: When PGP Command Line starts, it reads the

configuration file, which includes special configuration variables and values

for each variable. These settings affect how PGP Command Line operates.

Configuration file variables can be changed permanently by editing the

configuration file or overridden on a temporary basis by specifying a value

for a configuration file variable on the command line.

 Self-Decrypting Archives (SDAs): PGP Command Line lets you create

SDAs, compressed and conventionally encrypted archives that require a

passphrase to decrypt. SDAs contain an executable for the target platform,

which means the recipient of an SDA does not need to have any PGP

software installed to open the archive. You can thus securely transfer data

to recipients with no PGP software installed. You will have to communicate

the passphrase of the SDA to the recipient, however.

 Additional Decryption Key (ADK): PGP Command Line supports the use

of an ADK, which is an additional key to which files or messages are

encrypted, thus allowing the keeper of the ADK to retrieve data or

messages as well as the intended recipient. Use of an ADK ensures that

your corporation has access to all its proprietary information even if

employee keys are lost or become unavailable.

 PGP Zip archives: The PGP Zip feature lets you encrypt/sign groups of files

or entire directories into a single compressed archive file. The archive

format is tar and the supported compression formats are Zip, BZip2, and

Zlib.

Getting Started

Now that you know a little bit about PGP Command Line, let’s go deeper into

what you need to do to get started using it:

1 Install PGP Command Line. Specific instructions for installing PGP

Command Line on the supported platforms are in Installation.

2 License the software. PGP Command Line functionality is extremely

limited until you license the software. Refer to Licensing for more

information.

3 Create your default key pair. Most PGP Command Line operations require

a key pair (a private key and a public key). Refer to Creating Your Keypair for

more information.

4 Protect your private key. Because your private key can decrypt your

protected data, it is important that you protect it. Do not write down or tell

someone the passphrase. It is a good idea to keep your private key on a

machine that only you can access, and in a directory that is not accessible

from the network. Also, you should make a backup of the private key and

store it in a secure location. Refer to Protecting Your Private Key for more

information.

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PGP® Command Line 10.0 PGP Command Line Basics

5 Exchange public keys with others. In order to encrypt data to someone

you need their public key; and they need yours to encrypt data to you. Refer

to Getting the Public Keys of Others for more information about how to

obtain public keys.

6 Verify the public keys you get from the keyserver. Once you have a

copy of someone’s public key, you add it to your public keyring. When you

get someone’s public key, you should make sure that it has not been

tampered with and that it really belongs to the purported owner. You do

this by comparing the unique fingerprint on your copy of someone’s public

key to the fingerprint on that person’s original key. For more information

about validity and trust, refer to An Introduction to Cryptography (it was put

onto your computer during installation). For instructions how to verify

someone’s public key, see --fingerprint (page 80).

7 Start securing your data. After you have generated your key pair and have

obtained public keys, you can begin encrypting, signing, decrypting, and

verifying your data.

5

This chapter lists the system requirements for, and tells you how to install PGP

Command Line onto, the six supported platforms: AIX, HP-UX, Mac OS X, Linux,

Solaris, and Windows. It also includes uninstall instructions.

In This Chapter

Overview....................................................................................................5

System Requirements ...............................................................................6

Installing on AIX .......................................................................................11

Installing on HP-UX ..................................................................................13

Installing on Mac OS X.............................................................................15

Installing on Red Hat Enterprise Linux or Fedora Core............................17

Installing on Solaris ..................................................................................19

Installing on Windows..............................................................................21

Overview

PGP Command Line can be installed on these platforms:

 Windows 7 (32- and 64-bit), Windows Vista (32- and 64-bit), Windows

Server 2003 (SP 1), Windows XP (32- and 64-bit), Windows 2000 (SP 4)

 HP-UX 11i and above (PA-RISC and Itanium)

 IBM AIX 5.3 and 6.1

 RedHat Enterprise Linux 3.0 and above (x86 only and x86_64)

 Fedora Core 3 and above (x86_64 only)

 Sun Solaris 9 (SPARC only) and Solaris 10 (SPARC, x86, and x86_64

 Apple Mac OS X 10.5.x and 10.6.x (Intel-based systems only)

PGP Command Line uses a specific directory for the application data such as the

configuration file, and a specific directory (called the home directory) for the files

it creates, such as keyring files.

On any UNIX system, the application data and the home directory are identical

and they are configured through the $HOME environment variable. For more

information, refer to the installation instructions for the specific UNIX platform.

2

Installation

6

PGP® Command Line 10.0 Installation

On Windows, the application data directory is used to store data such as the

configuration file PGPprefs.xml. The home directory is called “My

Documents” and is used to store keys. These two directories can be named

differently, depending on the specific version on Windows. For more

information, see To Install on Windows (on page 21).

Note: You can also use the --home-dir option on the command line to

specify a different home directory. Using this option affects only the

command it is used in and does not change the PGP_HOME_DIR

environment variable.

Using --home-dir on the command line overrides the current setting of the

PGP_HOME_DIR environment variable.

System Requirements

In general, system requirements for PGP Command Line are the same as the

system requirements for the host operating system.

In addition to the hard drive space required by the base operating system, PGP

Command Line requires additional space for both the data on which

cryptographic operations (such as encryption, decryption, signing, and verifying)

will be applied and temporary files created in the process of performing those

operations.

For a given file being encrypted or decrypted, PGP Command Line can require

several times the size of the original file in free hard drive space (depending on

how much the file was compressed), enough to hold both the original file or files

and the final file resulting from the encryption or decryption operation.

In cases where PGP Zip functionality is used on a file, PGP Command Line may

also require several times the size of the original file or files in free hard drive

space, enough to hold the original file, a temporary file created when handling

the archive, and the final file resulting from the encryption or decryption

operation. Make sure you have adequate free hard drive space on your system

before using PGP Command Line.

Windows 7 and Vista

Component Requirement

Computer

and

processor

PC with 1 GHz 32-bit (x86) processor

Memory 1 gigabyte (GB) of RAM or higher recommended (64 MB

minimum supported; may limit performance and some

features)

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PGP Command Line 10.0 User guide

PGP Command Line 10.0 User guide

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