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PKCS7(1)                                           OpenSSL                                          PKCS7(1)

       pkcs7 - PKCS#7 utility

       openssl pkcs7 [-inform PEM|DER] [-outform PEM|DER] [-in filename] [-out filename] [-print_certs]
       [-text] [-noout] [-engine id]

       The pkcs7 command processes PKCS#7 files in DER or PEM format.

       -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.

           prints out any certificates or CRLs contained in the file. They are preceded by their subject and
           issuer names in one line format.

           prints out certificates details in full rather than just subject and issuer names.

           don't output the encoded version of the PKCS#7 structure (or certificates is -print_certs is

       -engine id
           specifying an engine (by it's unique id string) will cause req 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.

       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

       The PEM PKCS#7 format uses the header and footer lines:

        -----BEGIN PKCS7----------END PKCS7---------END
        -----END PKCS7-----For PKCS7----For

       For compatibility with some CAs it will also accept:

        -----BEGIN CERTIFICATE----------END CERTIFICATE---------END

       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.


50                                               2013-03-05                                         PKCS7(1)

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