PKCS7
Section: OpenSSL (1SSL)
Updated: 2021-08-23
Index
Return to Main Contents
NAME
openssl-pkcs7, pkcs7 - PKCS#7 utility
SYNOPSIS
openssl pkcs7
[-help]
[-inform PEM|DER]
[-outform PEM|DER]
[-in filename]
[-out filename]
[-print_certs]
[-text]
[-noout]
[-engine id]
DESCRIPTION
The pkcs7 command processes PKCS#7 files in DER or PEM format.
OPTIONS
- -help
-
Print out a usage message.
- -inform DER|PEM
-
This specifies the input format. DER format is DER encoded PKCS#7
v1.5 structure.PEM (the default) is a base64 encoded version of
the DER form with header and footer lines.
- -outform DER|PEM
-
This specifies the output format, the options have the same meaning and default
as the -inform option.
- -in filename
-
This specifies the input filename to read from or standard input if this
option is not specified.
- -out filename
-
Specifies the output filename to write to or standard output by
default.
- -print_certs
-
Prints out any certificates or CRLs contained in the file. They are
preceded by their subject and issuer names in one line format.
- -text
-
Prints out certificates details in full rather than just subject and
issuer names.
- -noout
-
Don't output the encoded version of the PKCS#7 structure (or certificates
is -print_certs is set).
- -engine id
-
Specifying an engine (by its unique id string) will cause pkcs7
to attempt to obtain a functional reference to the specified engine,
thus initialising it if needed. The engine will then be set as the default
for all available algorithms.
EXAMPLES
Convert a PKCS#7 file from PEM to DER:
openssl pkcs7 -in file.pem -outform DER -out file.der
Output all certificates in a file:
openssl pkcs7 -in file.pem -print_certs -out certs.pem
NOTES
The PEM PKCS#7 format uses the header and footer lines:
-----BEGIN PKCS7-----
-----END PKCS7-----
For compatibility with some CAs it will also accept:
-----BEGIN CERTIFICATE-----
-----END CERTIFICATE-----
RESTRICTIONS
There is no option to print out all the fields of a PKCS#7 file.
This PKCS#7 routines only understand PKCS#7 v 1.5 as specified in RFC2315 they
cannot currently parse, for example, the new CMS as described in RFC2630.
SEE ALSO
crl2pkcs7(1)
COPYRIGHT
Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the ``License''). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
<https://www.openssl.org/source/license.html>.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- EXAMPLES
-
- NOTES
-
- RESTRICTIONS
-
- SEE ALSO
-
- COPYRIGHT
-
This document was created by
man2html,
using the manual pages.
Time: 08:55:17 GMT, December 16, 2021