pkcs7 <root
PKCS7(1SSL)                                  OpenSSL                                  PKCS7(1SSL)

NAME
       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.

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)

1.0.2g                                      2016-03-01                                PKCS7(1SSL)

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