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1 perry 1 gpgv
2 !!!gpgv
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 OPTIONS
7 RETURN VALUE
8 EXAMPLES
9 ENVIRONMENT
10 FILES
11 ----
12 !!NAME
13
14
15 gpgv -- signature verification tool
16 !!SYNOPSIS
17
18
19 __gpgv__ [[__options__] [[__signed files__]
20 !!DESCRIPTION
21
22
23 __gpgv__ is the OpenPGP signature checking
24 tool.
25
26
27 This program is a stripped down version of __gpg__ which
28 is only able to check signatures. It is somewhat smaller
29 than the full blown __gpg__ and uses a different (and
30 more simple way) to check that the public keys used to made
31 the signature are trustworth. There is no options files and
32 only very few options are implemented.
33
34
35 __gpgv__ assumes that all keys in the keyring are
36 trustworty. It uses by default a keyring named
37 __trustedkeys.gpg__ which is assumed to be in the home
38 directory as defined by GnuPG or set by an option or an
39 environment variable. An option may be used to specify
40 another keyring or even multiple keyrings.
41 !!OPTIONS
42
43
44 __gpgv__ recognizes these options:
45
46
47 -v, --verbose
48
49
50 Give more information during processing. If used twice, the
51 input data is listed in detail.
52
53
54 -q, --quiet
55
56
57 Try to be as quiet as possible.
58
59
60 --keyring __file__
61
62
63 Add __file__ to the list of keyrings. If __file__
64 begins with a tilde and a slash, these are replaced by the
65 HOME directory. If the filename does not contain a slash, it
66 is assumed to be in the home-directory (
67 __
68
69
70
71
72
73
74 It might make sense to use it together with
75 --no-default-keyring.
76
77
78 --homedir __directory__
79
80
81 Set the name of the home directory to __directory__ If
82 this option is not used it defaults to
83 __
84
85
86 --status-fd __n__
87
88
89 Write special status strings to the file descriptor
90 __n__. See the file DETAILS in the documentation for a
91 listing of them.
92
93
94 --logger-fd __n__
95
96
97 Write log output to file descriptor __n__ and not to
98 stderr.
99
100
101 --ignore-time-conflict
102
103
104 GnuPG normally checks that the timestamps associated with
105 keys and signatures have plausible values. However,
106 sometimes a signature seems to be older than the key due to
107 clock problems. This option makes these checks just a
108 warning.
109 !!RETURN VALUE
110
111
112 The program returns 0 if everything was fine, 1 if at least
113 one signature was bad, and other error codes for fatal
114 errors.
115 !!EXAMPLES
116
117
118 gpgv __pgpfile__
119
120
121 gpgv __sigfile__ [[__files__]
122
123
124 Verify the signature of the file. The second form is used
125 for detached signatures, where __sigfile__ is the
126 detached signature (either ASCII armored or binary) and
127 [[__files__] are the signed data; if this is not given the
128 name of the file holding the signed data is constructed by
129 cutting off the extension (
130 __sigfile__.
131 !!ENVIRONMENT
132
133
134 HOME
135
136
137 Used to locate the default home directory.
138
139
140 GNUPGHOME
141
142
143 If set directory used instead of
144 !!FILES
145
146
147 ~/.gnupg/trustedkeys.gpg
148
149
150 The default keyring with the allowed keys
151 ----
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