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GNU/Linux |
CentOS 5.3 |
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pkcs7(1ssl) |
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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.
−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 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-----
For compatibility with some CAs it will also accept:
-----BEGIN CERTIFICATE----- -----END CERTIFICATE-----
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 .
crl2pkcs7(1)
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pkcs7(1ssl) | |