/usr/man/cat.1/openssl-pkcs7.1

PKCS7(1)                     OpenSSL                     PKCS7(1)

NAME

     openssl-pkcs7, pkcs7 - PKCS#7 utility

SYNOPSIS

     openssl pkcs7 [-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.

COMMAND OPTIONS

     -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 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.

1.0.2t               Last change: 2019-09-10                    1

PKCS7(1)                     OpenSSL                     PKCS7(1)

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)

1.0.2t               Last change: 2019-09-10                    2

See also pkcs7(1)