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Copyright (C) 2006 Timo Schulz |
Copyright (C) 2006 Timo Schulz |
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Version 0.0.0 |
Version 0.2.0 |
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@settitle WinPT - The Windows Privacy Tray; a free GPG front-end for Windows |
@settitle WinPT - The Windows Privacy Tray; a free GPG front-end for Windows |
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You need at least Windows 98/2K/XP, but Windows XP or better is |
You need at least Windows 98/2K/XP, but Windows XP or better is |
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recommend. The program also works on NT/95/ME but there is no support |
recommend. The program also works on NT/95/ME but there is no support |
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for these OS versions any longer. |
for these OS versions any longer. Mainly because the OS vendor also |
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dropped support and no bug fixes will be provided any longer. |
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@section A short Introduction |
@section A short Introduction |
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WinPT is a graphical GnuPG front-end which resides in the task bar. |
WinPT is a graphical GnuPG front-end which resides in the task bar. |
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It is divided into several, so-called, managers. There is a manager |
It is divided into several, so-called, managers. There is a manager |
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for the keyring, for files and for smart cards. The aim of the program |
for the keyring, for files and for smart cards. The aim of the program |
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is to secure email communication and to perform file encryption. |
is to secure email communication and to perform file encryption and |
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to allow an easy and user friendly way for key management. |
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@subsection What is GnuPG |
@subsection What is GnuPG |
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GnuPG is a tool for secure communication and data storage. |
GnuPG is a tool for secure communication and data storage. |
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The fingerprint of the key is hexadecial (160-bit) sequence divided |
The fingerprint of the key is hexadecial (160-bit) sequence divided |
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into 10 groups of 4 hex digits. You can get the fingerprint of a key |
into 10 groups of 4 hex digits. You can get the fingerprint of a key |
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by opening the key property dialog. There you can mark the fingerprint |
by opening the key property dialog. There you can mark the fingerprint |
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and copy it to the clipboard. |
and copy it to the clipboard. The fingerprint of a key can be compared |
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to human fingerprints, it is unique for each key. |
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Example: 1D75 8108 5BC9 D9FB E78B 2078 ED46 81C9 BF3D F9B4 |
Example: 1D75 8108 5BC9 D9FB E78B 2078 ED46 81C9 BF3D F9B4 |
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It is a good idea to publish your fingerprint wherever possible. |
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For example via a business card or your website. |
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@section Installation of the Program |
@section Installation of the Program |
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It is always recommend to use the latest version of the program. You |
It is always recommend to use the latest version of the program. You |
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can download it from http://wald.intevation.org/projects/winpt. |
can download it from http://wald.intevation.org/projects/winpt. |
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Download the zip file with the binaries inside and unpack them in |
Download the zip file with the binaries inside and unpack them in |
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a folder. All files need to be in the same folder, so if you change |
a folder. All files need to be in the same folder, so if you change |
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the folder don't forget to move all files. |
the folder do not forget to move all files. |
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You should also download and verify the signature of the packet to |
You should also download and verify the signature of the packet to |
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make sure that the release is really authentic. |
make sure that the release is really authentic. |
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@section The First Start |
@section The First Start |
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This section is only important for people who never installed |
This section is only important for people who never installed |
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and/or used WinPT before. |
and/or used WinPT before and thus no keyrings are available. |
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When the program is started the first time, it offers two choices. |
When the program is started the first time, it offers two choices. |
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The one is to generate a key pair and the other is to copy |
The one is to generate a key pair and the other is to copy |
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Now a new dialog is shown which requests some information from |
Now a new dialog is shown which requests some information from |
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the user to allow a meaningful association between the key and |
the user to allow a meaningful association between the key and |
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the user. If the user prefer RSA keys, the check box should be marked. |
the user. If the user prefer RSA keys, the check box should be marked. |
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But this is a decision of personal taste and does not influence the security |
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or anything else. |
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If the entered data is OK, WinPT then generates a new key pair. As long |
If the entered data is OK, WinPT then generates a new key pair. As long |
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as this step takes, a progress dialog is shown to indicate the |
as this step takes, a progress dialog is shown to indicate the |
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enduring process. When the generation of the keypair is done, WinPT |
enduring process. When the generation of the keypair is done, WinPT |
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why it is also important to store the backup, at least of the |
why it is also important to store the backup, at least of the |
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secret keyring, at a @strong{safe} place. |
secret keyring, at a @strong{safe} place. |
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@section The Passphrase for the Secret Key |
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First a short explaination what passphrase is. A passphrase is like |
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a password but usually longer, maybe a sentence, which can consists of |
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any 7-bit ASCII characters. It is used to protect your secret key |
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and thus it is very import to chose a secure passphrase. If your |
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computer, and thus the secret key, were stolen and an attacker can |
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guess your passphrase he is able to decrypt all your data and to |
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create signatures in your name! A good passphrase is difficult |
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to guess but easy to remember and should be at least 10 characters long. |
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An easy way to generate a strong passphrase is to use a sentence only |
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you know but you can easily remind and then take the first letter of |
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each word, plus some special characters and maybe even some intentionally |
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made spelling mistakes. |
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Example: Row - row - row your boat, gently down the stream |
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Passphrase: R-r-ryb,gdt |
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Never write down or passphrase or share it among other people! |
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@section Keyserver Access |
@section Keyserver Access |
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An easy way to retrieve keys is the keyserver. You can think of |
An easy way to retrieve keys is the keyserver. You can think of |
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"BEGIN PGP MESSAGE" and "END PGP MESSAGE. |
"BEGIN PGP MESSAGE" and "END PGP MESSAGE. |
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@subsection Decrypt/Verify Data from the Clipboard |
@subsection Decrypt/Verify Data from the Clipboard |
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The most common case is propably that you got a signed email and |
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now you want to verify it. For this procedure, you have to copy |
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the entire signature in the clipboard. The easiest way is to |
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use CTRL+A and CTRL+C, then all available text will be copied. |
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WinPT (GnuPG) is smart enough to figure out the signature related |
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data. Now go to the taskbar, display the popup menu and select |
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Clipboard->Decrypt/Verify. Now a new dialog, the verify dialog, |
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should be available on screen with all information about the |
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signature. For example who is the signer, when was it signed |
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how much do you try this key and what was signed and most |
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important, the status of it (is the signature good or BAD). |
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A special case is when you don't have the public key to verify |
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the signature, if this happens WinPT offers to download the key |
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from the default keyserver. If the key was not found, the procedure |
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is aborted because without the key the sig cannot bed checked. |
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@subsection Sign the Clipboard |
@subsection Sign the Clipboard |
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We assume that text that shall be signed is already in the |
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clipboard. If not, select the text you want to sign and copy |
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with via CTRL+C in the clipboard. Now go to the taskbar and |
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open the peopup menu, Clipboard->Sign. If you just have one |
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secret key, the passphrase dialog will be automatically shown. |
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All you need is to enter your passphrase and confirm. In case |
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of more available secret keys, a list with all keys is shown |
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and you can select which key shall be used for signing. |
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The output is always a cleartext signature which is in text |
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format. Do not try to sign binary clipboard data, the result |
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would be unpredictable and not readable by human beings. |
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@section The Current Window Support |
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Compared to the clipboard mode, the CWS mode has some advantages. |
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Let us assume that you want to extract text from an editor window. |
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With the CWS mode, the program automatically tries to focus the |
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window to select the text and to copy it to the clipboard and |
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execute the selected command (Sign, Encrypt, Decrypt). |
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No manual user interaction is needed. Except this different behaviour, |
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it is very likewise to the clipboard mode and thus we do not describe |
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each command again. |
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@section The Key Manager |
@section The Key Manager |
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default values. Just select a file name and enter the passphrase. |
default values. Just select a file name and enter the passphrase. |
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The program issues a warning which should be read carefully. |
The program issues a warning which should be read carefully. |
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@subsection Adding a new secondary key |
@subsection Adding a new Secondary Key |
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For most users the existing keys in the key pair are enough |
For most users the existing keys in the key pair are enough |
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and no extra key is needed. But there are some exceptions. |
and no extra key is needed. But there are some exceptions. |
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users it's a good idea to let the program chose the key size (in bits). |
users it's a good idea to let the program chose the key size (in bits). |
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The default settings should be secure enough for most purposes. |
The default settings should be secure enough for most purposes. |
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@subsection Adding a new user ID |
@subsection Adding a new User ID |
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If you got a new email account, it's propably a good idea to |
If you got a new email account, it's propably a good idea to |
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add these new account to your key also. For example: |
add these new account to your key also. For example: |
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Now email programs are able to associate this address with your |
Now email programs are able to associate this address with your |
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key when somebody wants to send you a protected mail to this account. |
key when somebody wants to send you a protected mail to this account. |
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@subsection Adding a photographic ID |
@subsection Adding a new Photographic ID |
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With this function you can add a photo to your public. It will be |
With this function you can add a photo to your public. It will be |
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displayed in the key property dialog. |
displayed in the key property dialog. |
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in the dialog carefully to make sure the photo has a proper size |
in the dialog carefully to make sure the photo has a proper size |
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(file, height and weight). |
(file, height and weight). |
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@subsection Adding a new designated revoker |
@subsection Adding a new Designated Revoker |
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If you want to allow another key to revoke your own key, this |
If you want to allow another key to revoke your own key, this |
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might be useful if you lost your secret or a simliar situation, |
might be useful if you lost your secret or a simliar situation, |
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you can use this function to add a designated revoker to your key. |
you can use this function to add a designated revoker to your key. |
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a key from a file in general, just drag the file and drop it |
a key from a file in general, just drag the file and drop it |
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into the Key Manager window or use "Key" -> "Import...". |
into the Key Manager window or use "Key" -> "Import...". |
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@subsection Sign a Public Key |
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If you verified that a key really belongs to its owner, you |
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should sign the key to integrate it into your Web of Trust |
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and also to mark the key as valid in your keyring. Do not sign |
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a key you just got via email with the request to sign it. Anybody |
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can create a key with your (or better ANY) name, these information |
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are no hint to whom the key really belongs. You can check a key |
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by meeting or calling the key owner and verify the key fingerprint |
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of the key with the one published by the key owner. Additional checks |
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should be to watch at his driver license or the identity card to make |
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sure that name of the key matches the name of the key owner. After |
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this procedure is done, you can open the Key Manager, select the |
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right key and either use the context menu "Sign Key" or use the |
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toolbar button. |
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The next dialog will summarize the key information and some |
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additional options. For example if the signature should be |
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local or exportable. Local means the signature will be stripped |
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if you export the key and no one else except you can use it to |
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calculate the validity. If you mark the signature exportable, |
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any other user can see and use it. Now you can select the key |
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you want to use to sign and enter the passphrase. Confirm with "OK" |
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and the key will be signed. Now the validity of the new key is |
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"Full". It is propably a good idea to set the ownertrust of the |
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key. For a detailled description, see the chapter "Key Ownertrust". |
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@subsection Key Ownertrust |
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First we should explain what the ownertrust of a key is. The ownertrust |
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is a measurement how much you trust somebody to certify and check keys |
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of other people. For example, if you know that Bob is really the owner |
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of the key, you should sign it. But he is also known to sign other keys |
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without checking the idenity of the other key owner. Values for the |
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ownertrust are 1) Don't Know 2) Don't Trust 3) Marginal 4) Full |
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and thus you should propably use an ownertrust value like "Marginal". |
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But this is a personal decision and stored in a separate file and |
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never exported with the public keys. For further information, please |
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take a look into the GNU Privacy Handbook. |
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Just a last work on Key Pairs, they are automatically marked as |
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"Ultimate" because the key belongs to you and you trust it implicit. |
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@section The File Manager |
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@subsection Introduction |
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The File Manager is no replacement for an Explorer Extension. |
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If you secure your files frequently and you want to do this |
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fast and easy, I suggest to install GPGee. It is a program |
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which integrates itself into the explorer and provide menu |
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entries in the context menu of files and directory. But the |
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File Manager can be very useful if you just want to decrypt |
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and/or encrypt some files without additional programs. You |
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can find the File Manager via the symbol in the taskbar, |
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right click and then "File Manager". |
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@subsection An Overview of the GUI |
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First there are different ways to add (open) files in the |
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Key Manager. The easiest way is to use drag and drop to |
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add files into the File Manager. Just drag a file from the |
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explorer and drop it into the File Manager window. The second |
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way is to use File->Open. A dialog opens which is common for |
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all "File Open" operations in most Windows application. Now |
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you can select one or more files and confirm. The files will |
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be automatically added to the File Manager window. The main |
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window consists of a listview with three rows. |
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The first row is the status of the file. It can be "ENCRYPTED", |
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"SIGNED", "PUBKEY", "SECKEY", "SIG" or "UNKNOWN". Dependent on |
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the file status, the File Manager offers different choices. For example |
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"SIG" enables the verify options in the (popup) menu. "UNKNOWN" is |
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the default for all plaintext files. |
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The second row is the file name. And the last row is the status of |
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the operation. It can be either "", "SUCCESS" or "FAILED". An empty status |
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means no operation was started yet. FAILED indicates that the |
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GnuPG operation failed. In this case an error message was issued before. |
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Now it follows an example: |
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We assume that user wants to encrypt "c:\My Ideas\GPG GUI.txt". |
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Drag the file from the Explorer and drop it into the open File |
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Manager, the main window. The file will be added and recognized |
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as "UNKNOWN". Now we select the file and right click, a popup |
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menu is shown and we select "Encrypt". An new dialog is opened |
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which looks similar to the Clipboard Encryption dialog. Just |
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select the recipients and confirm. In contrast to clipboard encryption, |
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file encryption offers some more extra options. They are described |
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later. And hour glass will be shown as long as GnuPG takes to encrypt |
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the file. When the procedure is done, the third row should be change |
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to "SUCCESS" and the first row to "ENCRYPTED". |
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@subsection General Options |
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Now we describe the general options which are possible in some |
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File Manager dialogs. |
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@itemize |
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@item Text Output |
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When this option is checked, the output will be encoded in ASCII armor. |
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This can be useful if the file should be transfered via email. The |
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size of the output file is larger than the usual binary output. |
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@item Wipe Original |
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If this option is checked, the original file will be deleted after |
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successfull encryption. This can be useful if data should not be |
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available in plaintext any longer on a machine. |
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@end itemize |
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@bye |
@bye |