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 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. 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) 0.9.8o 2003-01-30 PKCS7(1SSL)
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