| =pod |
| |
| =head1 NAME |
| |
| pkcs7 - PKCS#7 utility |
| |
| =head1 SYNOPSIS |
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| B<openssl> B<pkcs7> |
| [B<-inform PEM|DER>] |
| [B<-outform PEM|DER>] |
| [B<-in filename>] |
| [B<-out filename>] |
| [B<-print_certs>] |
| [B<-text>] |
| [B<-noout>] |
| [B<-engine id>] |
| |
| =head1 DESCRIPTION |
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| The B<pkcs7> command processes PKCS#7 files in DER or PEM format. |
| |
| =head1 COMMAND OPTIONS |
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| =over 4 |
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| =item B<-inform DER|PEM> |
| |
| This specifies the input format. B<DER> format is DER encoded PKCS#7 |
| v1.5 structure.B<PEM> (the default) is a base64 encoded version of |
| the DER form with header and footer lines. |
| |
| =item B<-outform DER|PEM> |
| |
| This specifies the output format, the options have the same meaning as the |
| B<-inform> option. |
| |
| =item B<-in filename> |
| |
| This specifies the input filename to read from or standard input if this |
| option is not specified. |
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| =item B<-out filename> |
| |
| specifies the output filename to write to or standard output by |
| default. |
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| =item B<-print_certs> |
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| prints out any certificates or CRLs contained in the file. They are |
| preceded by their subject and issuer names in one line format. |
| |
| =item B<-text> |
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| prints out certificates details in full rather than just subject and |
| issuer names. |
| |
| =item B<-noout> |
| |
| don't output the encoded version of the PKCS#7 structure (or certificates |
| is B<-print_certs> is set). |
| |
| =item B<-engine id> |
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| specifying an engine (by it's unique B<id> string) will cause B<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. |
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| =back |
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| =head1 EXAMPLES |
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| Convert a PKCS#7 file from PEM to DER: |
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| openssl pkcs7 -in file.pem -outform DER -out file.der |
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| Output all certificates in a file: |
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| openssl pkcs7 -in file.pem -print_certs -out certs.pem |
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| =head1 NOTES |
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| The PEM PKCS#7 format uses the header and footer lines: |
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| -----BEGIN PKCS7----- |
| -----END PKCS7----- |
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| For compatibility with some CAs it will also accept: |
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| -----BEGIN CERTIFICATE----- |
| -----END CERTIFICATE----- |
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| =head1 RESTRICTIONS |
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| There is no option to print out all the fields of a PKCS#7 file. |
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| 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. |
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| =head1 SEE ALSO |
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| L<crl2pkcs7(1)|crl2pkcs7(1)> |
| |
| =cut |
