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* gpg.sgml: List proper documentation URL. Note that addrevoker takes an

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optional "sensitive" argument.  Remind that $GNUPGHOME can be used instead
of --homedir.  Clarify --no-default-keyring, and note why it may not take
effect if there are no other keyrings present.  Remove --pgp2 from the
list of --pgpXes that are just for bad preference lists.  Explain more why
locking memory pages is good.
This commit is contained in:
David Shaw 2004-01-07 05:02:57 +00:00
parent 9e8788618f
commit 27b650553e
2 changed files with 69 additions and 54 deletions
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10
doc/ChangeLog
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@ -1,3 +1,13 @@
2004-01-06 David Shaw <dshaw@jabberwocky.com>
* gpg.sgml: List proper documentation URL. Note that addrevoker
takes an optional "sensitive" argument. Remind that $GNUPGHOME
can be used instead of --homedir. Clarify --no-default-keyring,
and note why it may not take effect if there are no other keyrings
present. Remove --pgp2 from the list of --pgpXes that are just
for bad preference lists. Explain more why locking memory pages
is good.
2003-12-21 David Shaw <dshaw@jabberwocky.com>
* gpg.sgml: Add an example of what an exclamation mark is, as

113
doc/gpg.sgml
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@ -1,5 +1,5 @@
<!-- gpg.sgml - the man page for GnuPG
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GnuPG.
@ -73,9 +73,9 @@
<command/gpg/ is the main program for the GnuPG system.
</para>
<para>
This man page only lists the commands and options available.
For more verbose documentation get the GNU Privacy Handbook (GPH) or
one of the other documents at http://www.gnupg.org/docs.html .
This man page only lists the commands and options available. For more
verbose documentation get the GNU Privacy Handbook (GPH) or one of the
other documents at http://www.gnupg.org/documentation/ .
</para>
<para>
Please remember that option parsing stops as soon as a non option is
@ -373,7 +373,7 @@ Add a subkey to this key.</para></listitem></varlistentry>
<listitem><para>
Remove a subkey.</para></listitem></varlistentry>
<varlistentry>
<term>addrevoker</term>
<term>addrevoker <optional>sensitive</optional></term>
<listitem><para>
Add a designated revoker. This takes one optional argument:
"sensitive". If a designated revoker is marked as sensitive, it will
@ -1227,13 +1227,15 @@ effect when listing all keys.
<varlistentry>
<term>--keyring &ParmFile;</term>
<listitem><para>
Add &ParmFile; to the list of keyrings. If &ParmFile; begins with a
tilde and a slash, these are replaced by the HOME directory. If the
filename does not contain a slash, it is assumed to be in the GnuPG
home directory ("~/.gnupg" if --homedir is not used). The filename
may be prefixed with a scheme:</para>
<para>"gnupg-ring:" is the default one.</para>
<para>It might make sense to use it together with --no-default-keyring.
Add &ParmFile; to the current list of keyrings. If &ParmFile; begins
with a tilde and a slash, these are replaced by the $HOME
directory. If the filename does not contain a slash, it is assumed to
be in the GnuPG home directory ("~/.gnupg" if --homedir or $GNUPGHOME
is not used).
</para><para>
Note that this adds a keyring to the current list. If the intent is
to use the specified keyring alone, use --keyring along with
--no-default-keyring.
</para></listitem></varlistentry>
@ -1247,32 +1249,32 @@ Same as --keyring but for the secret keyrings.
<varlistentry>
<term>--trustdb-name &ParmFile;</term>
<listitem><para>
Use &ParmFile; instead of the default trustdb. If &ParmFile; begins
with a tilde and a slash, these are replaced by the HOME directory. If
the filename does not contain a slash, it is assumed to be in the
GnuPG home directory ("~/.gnupg" if --homedir is not used).
with a tilde and a slash, these are replaced by the $HOME
directory. If the filename does not contain a slash, it is assumed to
be in the GnuPG home directory ("~/.gnupg" if --homedir or $GNUPGHOME
is not used).
</para></listitem></varlistentry>
<varlistentry>
<term>--homedir &ParmDir;</term>
<listitem><para>
Set the name of the home directory to &ParmDir; If this
option is not used it defaults to "~/.gnupg". It does
not make sense to use this in a options file. This
also overrides the environment variable "GNUPGHOME".
Set the name of the home directory to &ParmDir; If this option is not
used it defaults to "~/.gnupg". It does not make sense to use this in
a options file. This also overrides the environment variable
$GNUPGHOME.
</para></listitem></varlistentry>
<varlistentry>
<term>--charset &ParmName;</term>
<listitem><para>
Set the name of the native character set. This is used
to convert some strings to proper UTF-8 encoding. If this option is not used, the default character set is determined
from the current locale. A verbosity level of 3 shows the used one.
Valid values for &ParmName; are:</para>
Set the name of the native character set. This is used to convert
some strings to proper UTF-8 encoding. If this option is not used, the
default character set is determined from the current locale. A
verbosity level of 3 shows the used one. Valid values for &ParmName;
are:</para>
<variablelist>
<varlistentry>
<term>iso-8859-1</term><listitem><para>This is the Latin 1 set.</para></listitem>
@ -1473,17 +1475,16 @@ as well as when verifying a signature with a notation in it.
--no-show-notation disables this option.
</para></listitem></varlistentry>
<varlistentry>
<term>--sig-policy-url &ParmString;</term>
<term>--cert-policy-url &ParmString;</term>
<term>--set-policy-url &ParmString;</term>
<listitem><para>
Use &ParmString; as Policy URL for signatures (rfc2440:5.2.3.19). If
you prefix it with an exclamation mark (!), the policy URL packet will
be flagged as critical. --sig-policy-url sets a a policy url for data
signatures. --cert-policy-url sets a policy url for key signatures
(certifications). --set-policy-url sets both.
Use &ParmString; as a Policy URL for signatures (rfc2440:5.2.3.19).
If you prefix it with an exclamation mark (!), the policy URL packet
will be flagged as critical. --sig-policy-url sets a a policy url for
data signatures. --cert-policy-url sets a policy url for key
signatures (certifications). --set-policy-url sets both.
</para><para>
The same %-expandos used for notation data are available here as well.
</para></listitem></varlistentry>
@ -2000,7 +2001,6 @@ Suppress the warning about "using insecure memory".
<varlistentry>
<term>--no-permission-warning</term>
<listitem><para>
Suppress the warning about unsafe file and home directory (--homedir)
permissions. Note that the permission checks that GnuPG performs are
not intended to be authoritative, but rather they simply warn about
@ -2031,8 +2031,11 @@ Assume the input data is not in ASCII armored format.
<varlistentry>
<term>--no-default-keyring</term>
<listitem><para>
Do not add the default keyrings to the list of
keyrings.
Do not add the default keyrings to the list of keyrings. Note that
GnuPG will not operate without any keyrings, so if you use this option
and do not provide alternate keyrings via --keyring or
--secret-keyring, then GnuPG will still use the default public or
secret keyrings.
</para></listitem></varlistentry>
@ -2111,10 +2114,10 @@ This is not for normal use. Use the source to see for what it might be useful.
<varlistentry>
<term>--emulate-md-encode-bug</term>
<listitem><para>
GnuPG versions prior to 1.0.2 had a bug in the way a signature was encoded.
This options enables a workaround by checking faulty signatures again with
the encoding used in old versions. This may only happen for ElGamal signatures
which are not widely used.
GnuPG versions prior to 1.0.2 had a bug in the way a signature was
encoded. This options enables a workaround by checking faulty
signatures again with the encoding used in old versions. This may
only happen for Elgamal signatures which are not widely used.
</para></listitem></varlistentry>
<varlistentry>
@ -2361,10 +2364,10 @@ in front.
</variablelist>
<para>
Note that you can append an exclamation mark (!) to key IDs or
fingerprints. This flag tells GnuPG to use exactly the given primary
or secondary key and not to try to figure out which secondary or
primary key to use.
Note that you can append an exclamation point (!) to key IDs or
fingerprints. This flag tells GnuPG to use the specified primary or
secondary key and not to try and calculate which primary or secondary
key to use.
</para>
</refsect1>
@ -2555,22 +2558,23 @@ cannot be read by the intended recipient.
</para>
<para>
For example, as of this writing, no version of official PGP supports
For example, as of this writing, no (unhacked) version of PGP supports
the BLOWFISH cipher algorithm. If you use it, no PGP user will be
able to decrypt your message. The same thing applies to the ZLIB
compression algorithm. By default, GnuPG uses the OpenPGP preferences
system that will always do the right thing and create messages that
are usable by all recipients, regardless of which OpenPGP program they
use. Only override this safe default if you know what you are doing.
compression algorithm. By default, GnuPG uses the standard OpenPGP
preferences system that will always do the right thing and create
messages that are usable by all recipients, regardless of which
OpenPGP program they use. Only override this safe default if you know
what you are doing.
</para>
<para>
If you absolutely must override the safe default, or if the
preferences on a given key are invalid for some reason, you are far
better off using the --pgp2, --pgp6, --pgp7, or --pgp8 options. These
options are safe as they do not force any particular algorithms in
violation of OpenPGP, but rather reduce the available algorithms to a
"PGP-safe" list.
better off using the --pgp6, --pgp7, or --pgp8 options. These options
are safe as they do not force any particular algorithms in violation
of OpenPGP, but rather reduce the available algorithms to a "PGP-safe"
list.
</para>
</refsect1>
@ -2580,10 +2584,11 @@ violation of OpenPGP, but rather reduce the available algorithms to a
<title>BUGS</title>
<para>
On many systems this program should be installed as setuid(root). This
is necessary to lock memory pages. Locking memory pages prevents the
operating system from writing memory pages to disk. If you get no
is necessary to lock memory pages. Locking memory pages prevents the
operating system from writing memory pages (which may contain
passphrases or other sensitive material) to disk. If you get no
warning message about insecure memory your operating system supports
locking without being root. The program drops root privileges as soon
locking without being root. The program drops root privileges as soon
as locked memory is allocated.
</para>
</refsect1>