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Title "PKCS7 1" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
pkcs7 - PKCS#7 utility Header "SYNOPSIS" \fBopenssl pkcs7 [-inform PEM|DER] [-outform PEM|DER] [-in filename] [-out filename] [-print_certs] [-text] [-noout] [-engine id] Header "DESCRIPTION" The pkcs7 command processes PKCS#7 files in \s-1DER\s0 or \s-1PEM\s0 format. Header "COMMAND OPTIONS" Item "-inform DER|PEM" This specifies the input format. \s-1DER\s0 format is \s-1DER\s0 encoded PKCS#7 v1.5 structure.\s-1PEM\s0 (the default) is a base64 encoded version of the \s-1DER\s0 form with header and footer lines. Item "-outform DER|PEM" This specifies the output format, the options have the same meaning as the \fB-inform option. Item "-in filename" This specifies the input filename to read from or standard input if this option is not specified. Item "-out filename" specifies the output filename to write to or standard output by default. Item "-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. Item "-text" prints out certificates details in full rather than just subject and issuer names. Item "-noout" don't output the encoded version of the PKCS#7 structure (or certificates is -print_certs is set). Item "-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. Header "EXAMPLES" Convert a PKCS#7 file from \s-1PEM\s0 to \s-1DER:\s0

.Vb 1 openssl pkcs7 -in file.pem -outform DER -out file.der .Ve

Output all certificates in a file:

.Vb 1 openssl pkcs7 -in file.pem -print_certs -out certs.pem .Ve

Header "NOTES" The \s-1PEM\s0 PKCS#7 format uses the header and footer lines:

.Vb 2 -----BEGIN PKCS7----- -----END PKCS7----- .Ve

For compatibility with some CAs it will also accept:

.Vb 2 -----BEGIN CERTIFICATE----- -----END CERTIFICATE----- .Ve

Header "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 \s-1RFC2315\s0 they cannot currently parse, for example, the new \s-1CMS\s0 as described in \s-1RFC2630.\s0

Header "SEE ALSO" \fIcrl2pkcs7\|(1)