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141 .TH PKCS7 1 "0.9.7a" "2003-02-19" "OpenSSL"
144 pkcs7 \- PKCS#7 utility
146 .IX Header "SYNOPSIS"
147 \&\fBopenssl\fR \fBpkcs7\fR
148 [\fB\-inform PEM|DER\fR]
149 [\fB\-outform PEM|DER\fR]
150 [\fB\-in filename\fR]
151 [\fB\-out filename\fR]
152 [\fB\-print_certs\fR]
157 .IX Header "DESCRIPTION"
158 The \fBpkcs7\fR command processes PKCS#7 files in \s-1DER\s0 or \s-1PEM\s0 format.
159 .SH "COMMAND OPTIONS"
160 .IX Header "COMMAND OPTIONS"
161 .Ip "\fB\-inform DER|PEM\fR" 4
162 .IX Item "-inform DER|PEM"
163 This specifies the input format. \fB\s-1DER\s0\fR format is \s-1DER\s0 encoded PKCS#7
164 v1.5 structure.\fB\s-1PEM\s0\fR (the default) is a base64 encoded version of
165 the \s-1DER\s0 form with header and footer lines.
166 .Ip "\fB\-outform DER|PEM\fR" 4
167 .IX Item "-outform DER|PEM"
168 This specifies the output format, the options have the same meaning as the
169 \&\fB\-inform\fR option.
170 .Ip "\fB\-in filename\fR" 4
171 .IX Item "-in filename"
172 This specifies the input filename to read from or standard input if this
173 option is not specified.
174 .Ip "\fB\-out filename\fR" 4
175 .IX Item "-out filename"
176 specifies the output filename to write to or standard output by
178 .Ip "\fB\-print_certs\fR" 4
179 .IX Item "-print_certs"
180 prints out any certificates or CRLs contained in the file. They are
181 preceded by their subject and issuer names in one line format.
184 prints out certificates details in full rather than just subject and
186 .Ip "\fB\-noout\fR" 4
188 don't output the encoded version of the PKCS#7 structure (or certificates
189 is \fB\-print_certs\fR is set).
190 .Ip "\fB\-engine id\fR" 4
191 .IX Item "-engine id"
192 specifying an engine (by it's unique \fBid\fR string) will cause \fBreq\fR
193 to attempt to obtain a functional reference to the specified engine,
194 thus initialising it if needed. The engine will then be set as the default
195 for all available algorithms.
197 .IX Header "EXAMPLES"
198 Convert a PKCS#7 file from \s-1PEM\s0 to \s-1DER:\s0
201 \& openssl pkcs7 -in file.pem -outform DER -out file.der
203 Output all certificates in a file:
206 \& openssl pkcs7 -in file.pem -print_certs -out certs.pem
210 The \s-1PEM\s0 PKCS#7 format uses the header and footer lines:
213 \& -----BEGIN PKCS7-----
214 \& -----END PKCS7-----
216 For compatibility with some CAs it will also accept:
219 \& -----BEGIN CERTIFICATE-----
220 \& -----END CERTIFICATE-----
223 .IX Header "RESTRICTIONS"
224 There is no option to print out all the fields of a PKCS#7 file.
226 This PKCS#7 routines only understand PKCS#7 v 1.5 as specified in \s-1RFC2315\s0 they
227 cannot currently parse, for example, the new \s-1CMS\s0 as described in \s-1RFC2630\s0.
229 .IX Header "SEE ALSO"