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129 .\" ========================================================================
132 .TH PKCS7 1 "2017-12-07" "1.0.2n" "OpenSSL"
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134 .\" way too many mistakes in technical documents.
139 pkcs7 \- PKCS#7 utility
141 .IX Header "SYNOPSIS"
142 \&\fBopenssl\fR \fBpkcs7\fR
143 [\fB\-inform PEM|DER\fR]
144 [\fB\-outform PEM|DER\fR]
145 [\fB\-in filename\fR]
146 [\fB\-out filename\fR]
147 [\fB\-print_certs\fR]
152 .IX Header "DESCRIPTION"
153 The \fBpkcs7\fR command processes PKCS#7 files in \s-1DER\s0 or \s-1PEM\s0 format.
154 .SH "COMMAND OPTIONS"
155 .IX Header "COMMAND OPTIONS"
156 .IP "\fB\-inform DER|PEM\fR" 4
157 .IX Item "-inform DER|PEM"
158 This specifies the input format. \fB\s-1DER\s0\fR format is \s-1DER\s0 encoded PKCS#7
159 v1.5 structure.\fB\s-1PEM\s0\fR (the default) is a base64 encoded version of
160 the \s-1DER\s0 form with header and footer lines.
161 .IP "\fB\-outform DER|PEM\fR" 4
162 .IX Item "-outform DER|PEM"
163 This specifies the output format, the options have the same meaning as the
164 \&\fB\-inform\fR option.
165 .IP "\fB\-in filename\fR" 4
166 .IX Item "-in filename"
167 This specifies the input filename to read from or standard input if this
168 option is not specified.
169 .IP "\fB\-out filename\fR" 4
170 .IX Item "-out filename"
171 specifies the output filename to write to or standard output by
173 .IP "\fB\-print_certs\fR" 4
174 .IX Item "-print_certs"
175 prints out any certificates or CRLs contained in the file. They are
176 preceded by their subject and issuer names in one line format.
179 prints out certificates details in full rather than just subject and
181 .IP "\fB\-noout\fR" 4
183 don't output the encoded version of the PKCS#7 structure (or certificates
184 is \fB\-print_certs\fR is set).
185 .IP "\fB\-engine id\fR" 4
186 .IX Item "-engine id"
187 specifying an engine (by its unique \fBid\fR string) will cause \fBpkcs7\fR
188 to attempt to obtain a functional reference to the specified engine,
189 thus initialising it if needed. The engine will then be set as the default
190 for all available algorithms.
192 .IX Header "EXAMPLES"
193 Convert a PKCS#7 file from \s-1PEM\s0 to \s-1DER:\s0
196 \& openssl pkcs7 \-in file.pem \-outform DER \-out file.der
199 Output all certificates in a file:
202 \& openssl pkcs7 \-in file.pem \-print_certs \-out certs.pem
206 The \s-1PEM\s0 PKCS#7 format uses the header and footer lines:
209 \& \-\-\-\-\-BEGIN PKCS7\-\-\-\-\-
210 \& \-\-\-\-\-END PKCS7\-\-\-\-\-
213 For compatibility with some CAs it will also accept:
216 \& \-\-\-\-\-BEGIN CERTIFICATE\-\-\-\-\-
217 \& \-\-\-\-\-END CERTIFICATE\-\-\-\-\-
220 .IX Header "RESTRICTIONS"
221 There is no option to print out all the fields of a PKCS#7 file.
223 This PKCS#7 routines only understand PKCS#7 v 1.5 as specified in \s-1RFC2315\s0 they
224 cannot currently parse, for example, the new \s-1CMS\s0 as described in \s-1RFC2630.\s0
226 .IX Header "SEE ALSO"
227 \&\fIcrl2pkcs7\fR\|(1)