pkcs7.pod revision 59191 
1=pod
2
3=head1 NAME
4
5pkcs7 - PKCS#7 utility
6
7=head1 SYNOPSIS
8
9B<openssl> B<pkcs7>
10[B<-inform PEM|DER>]
11[B<-outform PEM|DER>]
12[B<-in filename>]
13[B<-out filename>]
14[B<-print_certs>]
15[B<-text>]
16[B<-noout>]
17
18=head1 DESCRIPTION
19
20The B<pkcs7> command processes PKCS#7 files in DER or PEM format.
21
22=head1 COMMAND OPTIONS
23
24=over 4
25
26=item B<-inform DER|PEM>
27
28This specifies the input format. B<DER> format is DER encoded PKCS#7
29v1.5 structure.B<PEM> (the default) is a base64 encoded version of
30the DER form with header and footer lines.
31
32=item B<-outform DER|PEM>
33
34This specifies the output format, the options have the same meaning as the 
35B<-inform> option.
36
37=item B<-in filename>
38
39This specifies the input filename to read from or standard input if this
40option is not specified.
41
42=item B<-out filename>
43
44specifies the output filename to write to or standard output by
45default.
46
47=item B<-print_certs>
48
49prints out any certificates or CRLs contained in the file. They are
50preceded by their subject and issuer names in one line format.
51
52=item B<-text>
53
54prints out certificates details in full rather than just subject and
55issuer names.
56
57=item B<-noout>
58
59don't output the encoded version of the PKCS#7 structure (or certificates
60is B<-print_certs> is set).
61
62=back
63
64=head1 EXAMPLES
65
66Convert a PKCS#7 file from PEM to DER:
67
68 openssl pkcs7 -in file.pem -outform DER -out file.der
69
70Output all certificates in a file:
71
72 openssl pkcs7 -in file.pem -print_certs -out certs.pem
73
74=head1 NOTES
75
76The PEM PKCS#7 format uses the header and footer lines:
77
78 -----BEGIN PKCS7-----
79 -----END PKCS7-----
80
81For compatability with some CAs it will also accept:
82
83 -----BEGIN CERTIFICATE-----
84 -----END CERTIFICATE-----
85
86=head1 RESTRICTIONS
87
88There is no option to print out all the fields of a PKCS#7 file.
89
90This PKCS#7 routines only understand PKCS#7 v 1.5 as specified in RFC2315 they 
91cannot currently parse, for example, the new CMS as described in RFC2630.
92
93=head1 SEE ALSO
94
95L<crl2pkcs7(1)|crl2pkcs7(1)>
96
97=cut
98