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Some more new files

This commit is contained in:
Werner Koch 2004-09-11 14:50:35 +00:00
parent f103eeb9da
commit 9ec1437772
2 changed files with 278 additions and 0 deletions

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artwork/gpglogo.fig Normal file
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#FIG 3.2
Landscape
Center
Metric
A4
100.00
Single
-2
1200 2
0 32 #414541
0 33 #8e8e8e
0 34 #414541
0 35 #8e8e8e
0 36 #8e8e8e
6 91 46 7785 7740
1 3 0 2 0 7 100 0 -1 0.000 1 0.0000 3938 3893 3832 3832 3938 3893 7763 4118
1 3 0 2 0 7 100 0 -1 0.000 1 0.0000 3938 3893 2959 2959 3938 3893 6863 4343
2 5 0 1 0 -1 100 0 -1 0.000 0 0 -1 0 0 5
0 tmp/gnu1.jpg
1628 2303 6248 2303 6248 5633 1628 5633 1628 2303
4 0 0 100 0 30 40 0.0000 4 450 480 3713 743 N\001
4 0 0 100 0 30 40 0.2618 4 450 465 2918 908 G\001
4 0 0 100 0 30 40 6.0214 4 450 450 4527 791 U\001
4 0 0 100 0 30 40 6.0214 4 330 330 3046 7398 c\001
4 0 0 100 0 30 40 0.8727 4 330 285 6684 6299 r\001
4 0 0 100 0 30 40 0.0000 4 465 390 3668 7493 y\001
4 0 0 100 0 30 40 5.9341 4 330 345 2488 7193 a\001
4 0 0 100 0 30 40 5.7596 4 330 390 1944 6889 v\001
4 0 0 100 0 30 40 5.4978 4 465 195 1562 6609 i\001
4 0 0 100 0 30 40 5.4105 4 330 285 1198 6206 r\001
4 0 0 100 0 30 40 5.3233 4 450 375 826 5724 P\001
4 0 0 100 0 30 40 0.5236 4 330 390 5681 7140 u\001
4 0 0 100 0 30 40 0.6981 4 330 345 6247 6739 a\001
4 0 0 100 0 30 40 1.0472 4 465 390 7039 5909 d\001
4 0 0 100 0 30 40 0.3491 4 450 465 5031 7399 G\001
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> * How to mark a CA certificate as trusted.
There are two ways:
1. Let gpg-agent do this for you. Since version 1.9.9 you need to
add the option --allow-mark-trusted gpg-agent.conf or when
invoking gpg-agent. Everytime gpgsm notices an untrusted root
certificate gpg-agent will pop up a dialog to ask whether this
certificate should be trusted. This is similar to whatmost
browsers do.
The disadvantage of this method and the reason why
--allow-mark-trusted is required is that the list of trusted root
certificates will grow, because almost all user will just hit
"yes, I trust" and "yes, I verified the fingerprint" without
understanding that this is a very serious decision.
2. Use your editor. Edit the file ~/.gnupg/trustlist.txt and add
the fingerprints of the trusted root certificates. There are
comments on the top explaining the simple format. The current
CVS version allows for colons in the fingerprint, so you can
easily cut and paste it from whereever you know that this is the
correct fingerprint.
An example for an entry in the trustlist.txt is:
# CN=PCA-1-Verwaltung,O=PKI-1-Verwaltung,C=de
3EEE3D8BB7F0FE5C9F5804A3A7E51BCE98209DF9 S
This is in fact one that probably made its way into the file using the
first method. As usual a # indicates a comment. The trailing S means
that this is to be used for (X.509).
It is not possible to trust intermediate CA certificates; gpgsm always
checks the entire chain of certificates.
> * How to import a key and bind it to some certificate already
> imported. Alternatively, import key and certificate together, from
> a pkcs12 blob, or pkcs8 + certificate blobs, or whatever.
> Alternatively, don't import the key at all, but specify location of
> key using a parameter when signing.
You always need to import the key; there is something similar to a
keyring (here called a keybox: ~/.gnupg/pubring.kbx).
Importing a key either from a binary or ascii armored (PEM) certificate
file or from a cert-only signature file is done using
gpg --import FILE
or
gpg --import < FILE
In general you should first import the root certificates and then down
to the end user certificate. You may put all into one file and gpgsm
will do the right thing in this case independend of the order.
While verifying a signature, all included certificates are
automagically imported.
To import from a pkcs#12 file you may use the same command; if a
private key is contained in that file, you will be asked for the
transport passphrases as well as for the new passphrase used to
protect it in gpg-agent's private key storage
(~/.gnupg/private-keys-v1.d/). Note that the pkcs#12 support is very
basic but sufficient for certificates exported from Mozilla, OpenSSL
and MS Outlook.
Background info on private keys:
If you want to look at the private key you first need to know the name
of the keyfile. Run the command "gpgsm -K --with-key-data [KEYID]" and
you get an output like:
crs::1024:1:CF8[..]6D:20040105T184908:2006[...]:09::CN=ZS[....]::esES:
fpr:::::::::3B50BF2BDAF2[...]1AE6796D:::2812[...]508F21F065E65E44:
grp:::::::::C92DB9CFD588ADE846BE3AC4E7A2E1B11A4A2ADB:
uid:::::::::CN=Werner Koch,OU=test,O=g10 Code,C=de::
uid:::::::::<wk@g10code.de>::
This should be familar to advanced gpg-users; see doc/DETAILS in gpg
1.3 (CVS HEAD) for a description of the records. The value in the
"grp" tagged record is the so called keygrip and you should find a
file ~/.gnupg/private-keys-v1.d/C92DB9CFD588ADE846BE3AC4E7A2E1B11A4A2ADB.key
with the private and public key in an S-expression like format. The
gpg-protect-tool may be used to display it in a human readable format:
$ gpgsm --call-protect-tool ~/.gnupg/private-keys-v1.d/C9[...]B.key
(protected-private-key
(rsa
(n #00C16B6E807C47BB[...]10487#)
(e #010001#)
(protected openpgp-s2k3-sha1-aes-cbc
(
(sha1 "Hvü9Qt^Ç" "96")
#2B17DC766AEA2568EE0C688E18F9757E#)
#65A4FF9F30750A1300[...]7#)
)
)
The current CVS version of gpgsm has a command --dump-keys which lists
more details of a key including the keygrip so you don't need to use
the colon format if you want to manually debug things.
$ gpgsm --dump-keys
Serial number: 01
Issuer: CN=Trust Anchor,O=Test Certificates,C=US
Subject: CN=Trust Anchor,O=Test Certificates,C=US
sha1_fpr: 66:8A:47:56:A2:DC:88:FF:DA:B8:95:E1:3C:63:37:55:5F:0A:F7:BF
md5_fpr: 03:01:3B:BB:EC:6C:5D:48:88:4C:95:63:99:84:ED:C0
keygrip: 6A082B3063F6DA6D68B2994AB11B4328FD6206D2
notBefore: 2001-04-19 14:57:20
notAfter: 2011-04-19 14:57:20
hashAlgo: 1.2.840.113549.1.1.5 (sha1WithRSAEncryption)
keyType: 1024 bit RSA
authKeyId: [none]
keyUsage: certSign crlSign
extKeyUsage: [none]
policies: [none]
chainLength: unlimited
crlDP: [none]
authInfo: [none]
subjInfo: [none]
extn: 2.5.29.14 (subjectKeyIdentifier) [22 octets]
> * How to import a CRL
CRLs are managed by the dirmngr which is a separate package. The idea
is to eventaully turn it into a system daemon, so that on a multi-user
machine CRLs are handled more efficiently. As of now the dirmngr
needs service from gpgsm thus it is best to call it through gpgsm:
gpgsm --call-dirmngr LOAD /absolute/filename/to/a/CRL/file
See the dirmngr README and manual for further details.
If you don't want to check CRLs, use the option --diable-crl-checks
with gpgsm.
> I'm trying to replace the S/MIME support in OpenSSL with gpgsm for the
> MUA Gnus.
Great; I'd love it.
> Perhaps I shouldn't be using gpgsm directly? gpgme didn't seem to
> have a command line front end.
For Gnus it makes sense to use gpgsm directly. Enhancing pgg to
support gpgsm should not be that hard. Things you need to take care
off are: Warn if GPG_AGENT_INFO has not been set, because this will
call gpg-agent for each operation and obviously does not cache the
passphrase them. If GPG_AGENT_INFO has been set, also disable the
passphrase code for gpg and pass --use-agent to gpg - this way gpg
benefits from the passphrase caching and the pinentry.
You may want to look at gpgconf (tools/README.gpgconf) to provide a
customization interface for gpgsm, gpg-agent and dirmngr.
Module Overview
================
gpgsm
libgpg-error
libgcrypt
libksba
libassuan [statically linked]
[Standard system libraries]
gpg-agent
libgpg-error
libgcrypt
libassuan [statically linked]
libpth [system library]
[Standard system libraries]
scdaemon
libgpg-error
libgcrypt
libksba
libassuan [statically linked]
libusb [system library, optional]
libopensc [system library, optional]
[For reader access libpcsclite or a CT-API library may be
linked at runtime (controllable by scdaemon.conf)]
[Standard system libraries]
gpg-protect-tool
libgpg-error
libgcrypt
[Standard system libraries]
dirmngr
libgpg-error
libgcrypt
libksba
libassuan [statically linked]
libldap [system libary]
liblber [system libary]
libsasl [system libary, required by libldap]
libdb2 [system libary, required by libsasl]
libcrypt [system libary, required by libsasl - OOPS]
libpam [system libary, required by libsasl]
[Standard system libraries]
pinentry-curses
libncurses
[Standard system libraries]
[Independent Assuan code is source included]
pinentry-gtk
libncurses
[GTK+ and X libraries]
[Standard system libraries]
[Independent Assuan code is source included]
pinentry-qt
libncurses
[QT and X libraries]
[Standard system libraries]
[Independent Assuan code is source included]
gpgme
[Standard system libraries]
[gpgsm is required at runtime]
[Independent Assuan code is source included]
libgpg-error
[none]
libgcrypt
libgpg-error
libksba
libgpg-error
libassuan
[none]