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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" openssl\-pkcs7, pkcs7 \- PKCS#7 utility .SH "SYNOPSIS" .IX Header "SYNOPSIS" \&\fBopenssl\fR \fBpkcs7\fR [\fB\-help\fR] [\fB\-inform PEM|DER\fR] [\fB\-outform PEM|DER\fR] [\fB\-in filename\fR] [\fB\-out filename\fR] [\fB\-print_certs\fR] [\fB\-text\fR] [\fB\-noout\fR] [\fB\-engine id\fR] .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \fBpkcs7\fR command processes PKCS#7 files in \s-1DER\s0 or \s-1PEM\s0 format. .SH "OPTIONS" .IX Header "OPTIONS" .IP "\fB\-help\fR" 4 .IX Item "-help" Print out a usage message. .IP "\fB\-inform DER|PEM\fR" 4 .IX Item "-inform DER|PEM" This specifies the input format. \fB\s-1DER\s0\fR format is \s-1DER\s0 encoded PKCS#7 v1.5 structure.\fB\s-1PEM\s0\fR (the default) is a base64 encoded version of the \s-1DER\s0 form with header and footer lines. .IP "\fB\-outform DER|PEM\fR" 4 .IX Item "-outform DER|PEM" This specifies the output format, the options have the same meaning and default as the \fB\-inform\fR option. .IP "\fB\-in filename\fR" 4 .IX Item "-in filename" This specifies the input filename to read from or standard input if this option is not specified. .IP "\fB\-out filename\fR" 4 .IX Item "-out filename" Specifies the output filename to write to or standard output by default. .IP "\fB\-print_certs\fR" 4 .IX 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. .IP "\fB\-text\fR" 4 .IX Item "-text" Prints out certificates details in full rather than just subject and issuer names. .IP "\fB\-noout\fR" 4 .IX Item "-noout" Don't output the encoded version of the PKCS#7 structure (or certificates is \fB\-print_certs\fR is set). .IP "\fB\-engine id\fR" 4 .IX Item "-engine id" Specifying an engine (by its unique \fBid\fR string) will cause \fBpkcs7\fR 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. .SH "EXAMPLES" .IX Header "EXAMPLES" Convert a PKCS#7 file from \s-1PEM\s0 to \s-1DER:\s0 .PP .Vb 1 \& openssl pkcs7 \-in file.pem \-outform DER \-out file.der .Ve .PP Output all certificates in a file: .PP .Vb 1 \& openssl pkcs7 \-in file.pem \-print_certs \-out certs.pem .Ve .SH "NOTES" .IX Header "NOTES" The \s-1PEM\s0 PKCS#7 format uses the header and footer lines: .PP .Vb 2 \& \-\-\-\-\-BEGIN PKCS7\-\-\-\-\- \& \-\-\-\-\-END PKCS7\-\-\-\-\- .Ve .PP For compatibility with some CAs it will also accept: .PP .Vb 2 \& \-\-\-\-\-BEGIN CERTIFICATE\-\-\-\-\- \& \-\-\-\-\-END CERTIFICATE\-\-\-\-\- .Ve .SH "RESTRICTIONS" .IX Header "RESTRICTIONS" There is no option to print out all the fields of a PKCS#7 file. .PP 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 .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBcrl2pkcs7\fR\|(1) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2000\-2017 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.