PKCS7 1 2003-07-24 0.9.9-dev OpenSSL

NAME

pkcs7 - PKCS#7 utility

LIBRARY

libcrypto, -lcrypto

SYNOPSIS

ooppeennssssll ppkkccss77 [--iinnffoorrmm PPEEMM||DDEERR] [--oouuttffoorrmm PPEEMM||DDEERR] [--iinn ffiilleennaammee] [--oouutt ffiilleennaammee] [--pprriinntt__cceerrttss] [--tteexxtt] [--nnoooouutt] [--eennggiinnee iidd]

DESCRIPTION

The ppkkccss77 command processes PKCS#7 files in DER or PEM format.

COMMAND OPTIONS

--iinnffoorrmm DDEERR||PPEEMM This specifies the input format. DDEERR format is DER encoded PKCS#7
v1.5 structure.PPEEMM (the default) is a base64 encoded version of the DER form with header and footer lines.
--oouuttffoorrmm DDEERR||PPEEMM This specifies the output format, the options have the same meaning as the
--iinnffoorrmm option.
--iinn ffiilleennaammee This specifies the input filename to read from or standard input if this
option is not specified.
--oouutt ffiilleennaammee specifies the output filename to write to or standard output by
default.
--pprriinntt__cceerrttss prints out any certificates or CRLs contained in the file. They are
preceded by their subject and issuer names in one line format.
--tteexxtt prints out certificates details in full rather than just subject and
issuer names.
--nnoooouutt don't output the encoded version of the PKCS#7 structure (or certificates
is --pprriinntt__cceerrttss is set).
--eennggiinnee iidd specifying an engine (by it's unique iidd string) will cause rreeqq
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

_o_p_e_n_s_s_l___c_r_l_2_p_k_c_s_7(1)