PgpViewer iOS 100 Usersguide En

7/31/2019 PgpViewer iOS 100 Usersguide En

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The software described in this book is furnished under a license agreement and may be used only in accordance with the terms of the agreement.

Version 1.0.0. Last updated: July 2011.

Legal Notice

Copyright (c) 2011 Symantec Corporation. All rights reserved.

Symantec, the Symantec Logo, PGP, Pretty Good Privacy, and the PGP logo are trademarks or registered trademarks of Symantec Corporation or its

affiliates in the U.S. and other countries. Other names may be trademarks of their respective owners.

The product described in this document is distributed under licenses restricting its use, copying, distribution, and decompilation/reverse engineering.

No part of this document may be reproduced in any form by any means without prior written authorization of Symantec Corporation and its licensors, if

any.

THE DOCUMENTATION IS PROVIDED"AS IS"AND ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING

ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT

TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID. SYMANTEC CORPORATION SHALL NOT BE LIABLE FOR

INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS DOCUMENTATION.

THE INFORMATION CONTAINED IN THIS DOCUMENTATION IS SUBJECT TO CHANGE WITHOUT NOTICE.

The Licensed Software and Documentation are deemed to be commercial computer software as defined in FAR 12.212 and subject to restricted rights

as defined in FAR Section 52.227-19 "Commercial Computer Software - Restricted Rights" and DFARS 227.7202, et seq. Commercial Computer

Software and Commercial Computer Software Documentation, as applicable, and any successor regulations. Any use, modification, reproduction

release, performance, display or disclosure of the Licensed Software and Documentation by the U.S. Government shall be solely in accordance with

the terms of this Agreement.

Symantec Corporation

350 Ellis Street

Mountain View, CA 94043

Symantec Home Page(http://www.symantec.com )

Printed in the United States of America.

10 9 8 7 6 5 4 3 2 1
http://www.symantec.com/http://www.symantec.com/


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Contents

About PGP Viewer for iOS 3Overview 3Important Terms 4Audience 4Technical Support 5

Contacting Technical Support 5Licensing and registration 6Customer service 6Support agreement resources 6

Installing PGP Viewer for iOS 7System Requirements 7Installing PGP Viewer for iOS 7Uninstalling PGP Viewer for iOS 8

Configuring PGP Viewer for iOS 9Overview 9Using a Configuration File 10Manual Configuration 11Manual Configuration with a Proxy Server 11Importing a Client Key Mode or Server Client Key Mode Key 12

Using PGP Viewer for iOS 13

Messages 13Opening PGP/MIME and Partitioned text/HTML Messages 14Opening Partitioned text/plain Messages 14Replying to Messages 15

About Attachments 15Opening Attachments 16

Signatures 17Settings 17

PGP Account 18Keys 18Signature Verification 18Help 18About 18

User License Agreement 19


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ii Contents


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PGP Viewer for iOS decrypts, verifies, and displays PGP-encrypted messages andattachments on devices running Apple iOS software.

You cannot encrypt or sign messages at this time using PGP Viewer for iOS.

You musthave a managed email account on a PGP Universal Server with the LDAPDirectory Synchronization feature enabled in order to use PGP Viewer for iOS.

Some features of PGP Viewer for iOS may be controlled by settings or policiesof the PGP Universal Server. These features will be grayed out or not settable onyour iOS device.

In This Chapter

Overview........................................................................................................................... 3

Important Terms............................................................................................................. 4

Audience........................................................................................................................... 4

Technical Support........................................................................................................... 5

OverviewThere are three general things you need to do to use PGP Viewer for iOS:

Configure the email client on your iOS device to pick up email from the accountmanaged by your organization's PGP Universal Server. This is outside the scope ofthis document. You can search the Internet for information about your iOS deviceand ask your organization's PGP administrator or IT staff for information aboutthe email account managed by your organization's PGP Universal Server.

Install and configure PGP Viewer for iOS on your iOS device. Covered in thisdocument. Contact your PGP administrator for information specific to yourorganization.

Open, decrypt, and read encrypted messages in your email client using PGPViewer for iOS. Also covered in this document.

See Installing PGP Viewer for iOS(on page 7).

See Configuring PGP Viewer for iOS.

This section describes how to configure PGP Viewer for iOS after installation.

In order to configure PGP Viewer for iOS, you must be able to connect withyour organization's PGP Universal Server.

See Using PGP Viewer for iOS(on page 13).

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About PGP Viewer for iOS


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4 About PGP Viewer for iOSImportant Terms

Important TermsUnderstanding the following terms makes it easier to use PGP Viewer for iOS:

PGP Viewer for iOS: A software product from Symantec Corporation thatdecrypts, verifies, and displays PGP-encrypted messages and attachments from aPGP Universal Server-managed email account on an Apple iOS device.

iOS device: A device from Apple Computer that runs their iOS mobile operatingsystem. The iPhone, iPod Touch, and iPad are all iOS devices.

PGP-encrypted message: An email message (and attachments) that has beenencrypted by a PGP encryption application.

PGP Universal Server: A software/hardware product from Symantec Corporationused for configuration and management of PGP encryption applications. You must

have an email account on a PGP Universal Sever with the LDAP DirectorySynchronization feature enabled to use PGP Viewer for iOS.

encrypt: To scramble data so that it is unreadable. decrypt: To take encrypted data and make it readable again. enrollment: A process that establishes a relationship between a PGP Universal

Server and client software, such as PGP Viewer for iOS. This can be done for PGPViewer for iOS automatically using a configuration file or manually by enteringthe required configuration information.

LDAP Directory Synchronization: a feature of PGP Universal that lets your PGPUniversal Server query your organization's LDAP directory server (a MicrosoftActive Directory server, for example), thus accessing existing information aboutconfigured users, including their authentication credentials.

AudienceThe PGP Viewer for iOS User's Guidetells you how to use PGP Viewer for iOS on an iOSdevice. The intended audience is anyone who will be using PGP Viewer for iOS todecrypt, verify, and display encrypted messages on their iOS device.

For information about deploying and managing PGP Viewer for iOS, refer to the PGPViewer for iOS Administrator's Guide.


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About PGP Viewer for iOSTechnical Support

5

Technical SupportSymantec Technical Support maintains support centers globally. Technical Supportsprimary role is to respond to specific queries about product features and functionality.The Technical Support group also creates content for our online Knowledge Base. TheTechnical Support group works collaboratively with the other functional areas withinSymantec to answer your questions in a timely fashion. For example, the TechnicalSupport group works with Product Engineering and Symantec Security Response toprovide alerting services and virus definition updates.

Symantecs support offerings include the following:

A range of support options that give you the flexibility to select the right amountof service for any size organization

Telephone and/or Web-based support that provides rapid response and up-to-the-minute information

Upgrade assurance that delivers software upgrades Global support purchased on a regional business hours or 24 hours a day, 7 days a

week basis

Premium service offerings that include Account Management ServicesFor information about Symantecs support offerings, you can visit our Web site at thefollowing URL:

www.symantec.com/business/support/

All support services will be delivered in accordance with your support agreement andthe then-current enterprise technical support policy.

Contacting Technical Support

Customers with a current support agreement may access Technical Supportinformation at the following URL:


Before contacting Technical Support, make sure you have satisfied the systemrequirements that are listed in your product documentation. Also, you should be at thecomputer on which the problem occurred, in case it is necessary to replicate theproblem.

When you contact Technical Support, please have the following information available:

Product release level Hardware information Available memory, disk space, and NIC information Operating system Version and patch level Network topology Router, gateway, and IP address information
http://www.symantec.com/business/support/http://www.symantec.com/business/support/http://www.symantec.com/business/support/http://www.symantec.com/business/support/


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6 About PGP Viewer for iOSTechnical Support

Problem description: Error messages and log files Troubleshooting that was performed before contacting Symantec Recent software configuration changes and network changes

Licensing and registration

If your Symantec product requires registration or a license key, access our technicalsupport Web page at the following URL:


Customer service

Customer service information is available at the following URL:


Customer Service is available to assist with non-technical questions, such as thefollowing types of issues:

Questions regarding product licensing or serialization Product registration updates, such as address or name changes General product information (features, language availability, local dealers) Latest information about product updates and upgrades Information about upgrade assurance and support contracts Information about the Symantec Buying Programs Advice about Symantec's technical support options Nontechnical presales questions Issues that are related to CD-ROMs or manuals

Support agreement resources

If you want to contact Symantec regarding an existing support agreement, pleasecontact the support agreement administration team for your region as follows:

Asia-Pacific and Japan [email protected]

Europe, Middle-East, Africa [email protected]

North America, Latin America [email protected]
http://www.symantec.com/business/support/http://www.symantec.com/business/support/mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]://www.symantec.com/business/support/http://www.symantec.com/business/support/


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This section includes PGP Viewer for iOS system requirements and instructions forinstalling and uninstalling PGP Viewer for iOS.

In This Chapter

System Requirements.....................................................................................................7

Installing PGP Viewer for iOS ....................................................................................... 7

Uninstalling PGP Viewer for iOS .................................................................................. 8

System RequirementsPGP Viewer for iOS system requirements are:

iPhone, iPhone 3G, iPhone 3GS, iPhone 4, and iPod Touch running iOS 4.x orgreater; iPad and iPad 2 running iOS 3.2 or greater.

PGP Viewer for iOS supports all resolutions of these iOS devices in both portraitand landscape orientations.

PGP Viewer for iOS requires a managed email account on a PGP Universal Serverwith the LDAP Directory Synchronization feature enabled.

You can install PGP Viewer for iOS on an iOS device without having a managedemail account on a PGP Universal Server. You cannot configure or use PGP Viewerfor iOS without such an account, however.

Installing PGP Viewer for iOSThe PGP Viewer for iOS app is obtained from the Apple App Store.

Access to the Apple App Store is required for this procedure.

To install PGP Viewer for iOS:

On your iOS device, access the Apple App Store. In the Search field (in the upper right corner of the screen), enter PGP Viewer

for iOS, then tap Search.

Tap the icon for PGP Viewer for iOS. On the PGP Viewer for iOS page, tap FREE under the PGP Viewer for iOS icon. Tap INSTALL APP.

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Installing PGP Viewer for iOS


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8 Installing PGP Viewer for iOSUninstalling PGP Viewer for iOS

If an Apple ID Password dialog box appears, enter your Apple ID password, thentap OK.

PGP Viewer for iOS is installed onto your iOS device.

Uninstalling PGP Viewer for iOS

To uninstall PGP Viewer for iOS:

On your iOS device, tap and hold on the icon of an app. All visible apps will beginto shake, and an x in a circle appears in the upper left corner of each app's icon.

Tap the x of the Symantec PGP Viewer for iOS app. Tap Delete when the confirmation dialog appears. The icon for Symantec PGP

Viewer for iOS disappears.


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This section describes how to configure PGP Viewer for iOS after installation.

In order to configure PGP Viewer for iOS, you must be able to connect withyour organization's PGP Universal Server.

In This Chapter

Overview........................................................................................................................... 9

Using a Configuration File ...........................................................................................10

Manual Configuration...................................................................................................11Manual Configuration with a Proxy Server...............................................................11

Importing a Client Key Mode or Server Client Key Mode Key................................12

Overview

To configure PGP Viewer for iOS, you must do two things:

Enroll with your organization's PGP Universal Server. Get your key onto your iOS device. (Depending on the key mode of your key, this

may be done automatically for you.)

There are three ways to enroll PGP Viewer for iOS with a PGP Universal Server:

Via a configuration file. In this case, your administrator provides you with a filethat includes all of the configuration information you need.

Manually entering required information, with a direct connection to yourorganization's PGP Universal Server. In this case, you manually enter the requiredconfiguration information onto your iOS device.

Manually entering required information, connecting to your organization's PGPUniversal Server via a proxy server. In this case, you manually enter the requiredconfiguration information plus your proxy server information.

See Using a Configuration File(on page 10).

See Manual Configuration (on page 11).

See Manual Configuration with a Proxy Server(on page 11).

How you get the PGP key that can decrypt your encrypted messages onto your iOSdevice depends on its key mode:

Server Key Mode (SKM). Your key and its passphrase is stored on your PGPUniversal Server. During enrollment, your key will automatically be sent to youriOS device.

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Configuring PGP Viewer for iOS


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10 Configuring PGP Viewer for iOSUsing a Configuration File

Guarded Key Mode (GKM). Your key is stored encrypted on your PGP UniversalServer. During enrollment, your key will automatically be sent to your iOS device.When it is downloaded, you will be prompted to enter the passphrase.

Client Key Mode (CKM). Your key and its passphrase are stored on your localcomputer, not on your PGP Universal Server. In order to use your key with PGPViewer for iOS, you will need to import it onto your iOS device.

Server Client Key Mode (SCKM). Your key's private encryption subkeys are storedboth on your local computer and on the PGP Universal Server; your key's privatesigning subkeys are stored only on your local computer. In order to use your keywith PGP Viewer for iOS, you will need to import it onto your iOS device.

See Importing a Client Key Mode or Server Client Key Mode Key(on page 12).

Using a Configuration FileUse Auto Setup if you received a PGP Viewer for iOS configuration file attached to anemail message.

The configuration file cannot be encrypted. It will not work if it is encrypted. Ifthe configuration file you have is encrypted, contact the person you received it fromand ask that a decrypted version be sent to you.

To configure PGP Viewer for iOS using a configuration file:

Make sure you have a decrypted configuration file on your iOS device. It could benamed enroll.pgp or something similar.

Tap and hold the icon for the configuration file on your iOS device. Tap Open in "Symantec PGP Viewer for iOS" when it appears. On the User License screen, tap Accept. On the Instructions screen, tap Setup. The Symantec PGP screen appears with

the information from the configuration file in the appropriate fields.

Enter your LDAP password (the configuration file never includes passwords), thentap Next.

If the configuration file included proxy server settings, the Proxy Setup screenappears with the proxy server information from the configuration file in theappropriate fields.

Enter your proxy server password in the Password field, if required, then tapNext.

If you have a GKM key, you will be prompted to enter the passphrase of the privatekey on the Authenticating dialog. Enter the appropriate passphrase, then tapDone.

Tap OK when the Success dialog appears.PGP Viewer for iOS is ready for use.


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Configuring PGP Viewer for iOSManual Configuration

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Manual ConfigurationUse manual configuration withoutthe proxy server option if you did not receive aconfiguration file from your PGP Viewer for iOS administrator and you do not connectto your PGP Universal Server through a proxy server.

To manually configure PGP Viewer for iOS:

After installation, tap the PGP Viewer for iOS icon on your iOS device. On the User License screen, tap Accept. On the Instructions screen, make sure the Proxy Server option is set to OFF, then

tap Setup.

On the Symantec PGP screen, in the Server field, enter the fully qualified domainname of your organization's PGP Universal Server. For example,keys.example.com. You can also enter its IP address, if you have that information.

In the User field, enter your username on your organization's PGP UniversalServer.

In the Password field, enter the password for your account. Tap Next. If you have a GKM key, you will be prompted to enter the passphrase of the private

key on the Authenticating dialog. Enter the appropriate passphrase, then tapDone.


Manual Configuration with a Proxy ServerUse manual configuration with the proxy server option if you did not receive aconfiguration file from your PGP Viewer for iOS administrator but you do connect toyour PGP Universal Server through a proxy server.

To manually configure PGP Viewer for iOS with a proxy server:

After installation, tap the PGP Viewer for iOS icon on your iOS device. On the User License screen, tap Accept. On the Instructions screen, make sure the Proxy Server option is set to ON, then

tap Setup.

On the Symantec PGP screen, in the Server field, enter the fully qualified domainname of your organization's PGP Universal Server. For example,keys.example.com. You can also enter its IP address, if you have that information.

In the User field, enter your username on your organization's PGP UniversalServer.


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12 Configuring PGP Viewer for iOSImporting a Client Key Mode or Server Client Key Mode Key

In the Password field, enter the password for your account. Tap Next. On the Proxy Setup screen, in the Proxy Sever field, enter the name or IP addressof the proxy server. In the Port field, enter the port number of the proxy server (if required).

In the Username field, enter your username on the proxy server (if required). In the Password field, enter your password on the proxy server (if required). Tap Next. If you have a GKM key, you will be prompted to enter the passphrase of the private

key on the Authenticating dialog. Enter the appropriate passphrase, then tapDone.


Importing a Client Key Mode or Server Client Key ModeKey

To import a Client Key Mode (CKM) or Server Client Key Mode (SCKM) key on your iOSdevice:

Export the CKM or SCKM key, including the private portion, to a file. Email the key file, as an attachment, to the email account on your iOS device. Open the email message and tap the icon for the attachment. Tap Open in "PGP Viewer for iOS" when the text appears above the icon. PGP

Viewer for iOS will import the key, making it available for decrypting.

To verify that a key has been imported:

Open PGP Viewer for iOS. Tap Settings on the PGP Viewer for iOS Toolbar. Tap Keys on the Settings screen. Verify that the key you imported appears on the Keys screen.


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Once PGP Viewer for iOS is installed and configured on your iOS device, you can use itto decrypt, verify, and view encrypted messages. You can also decrypt attachments,view signatures, and control various other settings.

You cannot encrypt or sign messages at this time using PGP Viewer for iOS.

In This Chapter

Messages.........................................................................................................................13

About Attachments .......................................................................................................15

Signatures.......................................................................................................................17

Settings ...........................................................................................................................17

MessagesPGP Viewer for iOS supports two message formats:

PGP/MIME. A newer, standards based format for PGP-encrypted messages. Partitioned. An older format for PGP-encrypted messages that comes in two

flavors, text/plain and text/HTML.When you receive encrypted PGP/MIME and Partitioned text/HTML messages, you willsee attachments in your iOS device's email app instead of readable text as you normallywould. Opening the attachments using PGP Viewer for iOS displays the decryptedmessage content.

See Opening PGP/MIME and Partitioned text/HTML Messages (on page 13).

When you receive Partitioned text/plain messages, you see encrypted text instead ofreadable text. For these types of messages, you must copy the text to the clipboard andthen open PGP Viewer for iOS, which will decrypt the text on the clipboard and displayit.

See Opening Partitioned text/plain Messages (on page 14).

See Replying to Messages (on page 14).

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14 Using PGP Viewer for iOSMessages

Opening PGP/MIME and Partitioned text/HTML Messages

When you receive encrypted PGP/MIME and Partitioned text/HTML messages, you willsee attachments in your iOS device's email app instead of readable text. Opening theattachments using PGP Viewer for iOS displays the decrypted message content.

These are not attachments in the usual sense; that is, they are not filesattached to the text of the message. Instead, they are the text of the message in anattachment.

With PGP/MIME messages, there will be two "attachments" near the top of themessage, Version.txt and Message.pgp. You can ignore Version.txt.

With Partitioned text/HTML messages, the "attachment", called PGPexch.htm.pgp

To open PGP/MIME and Partitioned text/HTML messages:

Open the email app on your iOS device. Select the message you want to read. Tap the attachment called Message.pgp (for a PGP/MIME message) or the

attachment with a filename of PGPexch.htm.pgp or PGPexch.rtf.pgp (for aPartitioned text/HTML message).

Select Open in "PGP Viewer for iOS" when this text appears.PGP Viewer for iOS will open, decrypt the message, verify the signature (ifenabled), and then display the message.

Opening Partitioned text/plain MessagesWhen you receive a Partitioned text/plain message, you will see encrypted text whereyou would normally see the body of the message. To read the message, you must selectthe encrypted text, copy it, and open PGP Viewer for iOS, which will decrypt it anddisplay the message.

To open Partitioned text/plain messages:

Open the email app on your iOS device. Select the Partitioned text/plain message you want to read. Select just the encrypted text, starting with ----BEGIN PGP MESSAGE---- and

ending with -----END PGP MESSAGE----, and copy it.

Open PGP Viewer for iOS.PGP Viewer for iOS will open, decrypt the message on the clipboard, verify thesignature (if enabled), and then display the message.


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Using PGP Viewer for iOSAbout Attachments

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Replying to Messages

PGP Viewer for iOS does not send email messages nor does it encrypt data in thisrelease. You cannot use PGP Viewer for iOS to reply to messages you decrypt.

You can, however, reply to messages using your iOS device's email client. PGP/MIMEand Partitioned text/HTML will show the old attachments in the reply but no encryptedor decrypted text. Partitioned text/plain will show the encrypted text in the reply.

If you require that the original encrypted text be present in the reply in readable form(decrypted), copy the decrypted text from PGP Viewer for iOS and paste it into thereply.

If you include the decrypted text in a reply, the message will go outunencrypted. If it is intercepted in transit, it will not be protected. Consider whetherthis would violate your organization's security policy. If so, perhaps you should waituntil you can send an encrypted reply.

About AttachmentsWhen an encrypted message with an attachment is sent to you, both the body of themessage and the attachment are encrypted. When the message is decrypted by PGPViewer for iOS, the attachment is also decrypted.

While PGP Viewer for iOS can decrypt an attachment, it may not be usable onyour iOS device, depending on what kind of file it is.

There are two kinds of "attachments" that impact your encrypted messages on PGP

Viewer for iOS:

"actual" attachments. These are files that are attached to an email message. Whenencryption is not involved, these are the only kind of attachments associated withemail messages.

"body" attachments. These files are created in the encryption process. Theircontent is the body of the encrypted message, nota separate file attached to anemail message. These attachments are needed so that none of the binary contentof these messages is lost in the encryption/decryption process.

PGP Viewer for iOS handles both actual and body attachments based on the format ofthe message:

PGP/MIME messages always display at least two attachments when viewed on aniOS device: Version.txt and Message.pgp. Version.txt includes no useful

information. The encrypted body of the PGP/MIME message is stored inMessage.pgp. Any actual attachments to the message do not display untilMessage.pgp is decrypted, at which point they can be accessed through theAttachments Toolbar icon in PGP Viewer for iOS.


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16 Using PGP Viewer for iOSAbout Attachments

Partitioned text/plain messages always display encrypted text in the body of themessage. Partitioned text/plain messages have no bodyattachments. Any actualattachments are shown belowthe encrypted text and can be opened independently

of the encrypted body of the message. Actual attachments are named"Attachment1.pgp", "Attachment2.pgp", and so on. To decrypt the body ofPartitioned text/plain messages, you must copy the encrypted text to the clipboardand then open PGP Viewer for iOS.

Partitioned text/HTML messages are similar to Partitioned text/plain messagesin that encrypted text is shown in the body of the message and actual attachmentsare shown at the end of the message and are named "Attachment1.pgp","Attachment2.pgp", and so on. However, the body of the message is also in a bodyattachment at the end of the message and can be opened without copying it to theclipboard (it can, however, also be opened by copying it to the clipboard). The bodyattachments of Partitioned text/HTML messages will be named eitherPGPexch.htm.pgp or PGPexch.rtf.pgp.

The easiest way to determine if an attachment to an encrypted message is an actualattachment or a body attachment is to look at its filename. If it stars with "Attachment",

then it is an actual attachment.

See Opening Attachments (on page 16).

Opening Attachments

To open an attachment to a PGP/MIME encrypted message:

Open the message using PGP Viewer for iOS. The message will be decrypted andthen displayed.

On the PGP Viewer for iOS toolbar, tap Attachments.PGP Viewer for iOS displays a number in a circle on the Attachments icon;

the number shown indicates how many attachments are attached to the message.

The filenames of the attachments display.

Tap the name of the attachment to see what options are available for opening it onyour iOS device.

To open an attachment to a Partitioned message:

Open the message in your email app. Move to the bottom of the message and look for the attachments. They will be

named "Attachment1.pgp", "Attachment2.pgp", and so on. If you are opening anattachment to a Partitioned text/HTML message, be sure to select an actual

attachment and not the body of the message in an attachment. Tap the attachment, then select Open in "PGP Viewer for iOS" when this textappears. PGP Viewer for iOS opens, decrypts the attachment, and displays theAttachments screen.

Tap the name of the attachment to see what options are available for opening it onyour iOS device.


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Using PGP Viewer for iOSSignatures

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SignaturesPGP Viewer for iOS can check the validity of (verify) the signatures of PGP-encryptedmessages you receive that have been signed.

By default, signature verification is on. You can turn off signature verification, whichcan speed up the display of decrypted messages, in the Settings.

Signature verification shows:

The date and time the message was signed. The name and email address on the key that signed the message. The key ID of the key that signed the message. The encoding format of the key at the time the message was signed. If the message

shows "(L)" after the key ID, the encoding was Partitioned; if it shows nothing afterthe key ID, the encoding was PGP/MIME.

To verify a signature:

Open the message in PGP Viewer for iOS. Tap Signature in the Toolbar. Signature information appears.

SettingsPGP Viewer for iOS displays the current configuration settings and gives you controlover certain other settings.

To display the Settings screen:

Open PGP Viewer for iOS. Tap Settings on the Toolbar. The Settings screen displays.

See PGP Account(on page 17).

See Keys (on page 18).

See Signature Verification (on page 18).

See Help (on page 18).

SeeAbout(on page 18).See User License Agreement(on page 19).


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18 Using PGP Viewer for iOSSettings

PGP Account

Gives you control over two settings and displays current configuration information:

Clear Passphrase Cache: Tap and slide to ON to clear the passphrase cache. Youwill be prompted for your passphrase the next time it is required.

Reset Server Connections: Tap and slide to ON to reset your configurationsettings (does not delete any PGP keys). You will have to go through theconfiguration process again if you set this to ON. This setting lets you configurePGP Viewer for iOS to work with a different PGP Universal Server without havingto reinstall the app.

PGP Server: Shows the currently configured PGP Universal Server. Proxy Server: Shows the currently configured proxy server (if any).

Keys

Displays a list of PGP keys on the device.

To delete a key:

Swipe across the listing of the key you want to delete. Tap Delete when it appears. The key is deleted.

Signature Verification

Controls the status of signature verification. The default is ON.

Turn off signature verification to speed up message decryption.

To change the signature verification setting:

From ON to OFF, tap the open space to the right ofON and slide it to the left. From OFF to ON, tap the open space to the left ofOFF and slide it to the right.

Help

Displays the on-device help for PGP Viewer for iOS.

About

Displays the version of PGP Viewer for iOS currently installed.


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Using PGP Viewer for iOSSettings

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User License Agreement

Displays the End User License Agreement for PGP Viewer for iOS.

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