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Commit | Line | Data |
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e3775a33 | 1 | =pod |
625c781d | 2 | {- OpenSSL::safe::output_do_not_edit_headers(); -} |
9fcb9702 | 3 | |
e3775a33 DSH |
4 | =head1 NAME |
5 | ||
4b537191 | 6 | openssl-smime - S/MIME command |
e3775a33 DSH |
7 | |
8 | =head1 SYNOPSIS | |
9 | ||
10 | B<openssl> B<smime> | |
169394d4 | 11 | [B<-help>] |
e3775a33 DSH |
12 | [B<-encrypt>] |
13 | [B<-decrypt>] | |
14 | [B<-sign>] | |
d884c5ba | 15 | [B<-resign>] |
e3775a33 DSH |
16 | [B<-verify>] |
17 | [B<-pk7out>] | |
2197494d DSH |
18 | [B<-binary>] |
19 | [B<-crlfeol>] | |
8dc57d76 | 20 | [B<-I<cipher>>] |
e8769719 | 21 | [B<-in> I<file>] |
e8769719 RS |
22 | [B<-certfile> I<file>] |
23 | [B<-signer> I<file>] | |
65718c51 RS |
24 | [B<-nointern>] |
25 | [B<-noverify>] | |
26 | [B<-nochain>] | |
27 | [B<-nosigs>] | |
28 | [B<-nocerts>] | |
29 | [B<-noattr>] | |
30 | [B<-nodetach>] | |
31 | [B<-nosmimecap>] | |
e8769719 RS |
32 | [B<-recip> I< file>] |
33 | [B<-inform> B<DER>|B<PEM>|B<SMIME>] | |
777182a0 | 34 | [B<-outform> B<DER>|B<PEM>|B<SMIME>] |
6d382c74 | 35 | [B<-keyform> B<DER>|B<PEM>|B<P12>|B<ENGINE>] |
e8769719 | 36 | [B<-passin> I<arg>] |
f91d003a | 37 | [B<-inkey> I<filename>|I<uri>] |
e8769719 | 38 | [B<-out> I<file>] |
e8769719 RS |
39 | [B<-content> I<file>] |
40 | [B<-to> I<addr>] | |
41 | [B<-from> I<ad>] | |
42 | [B<-subject> I<s>] | |
e3775a33 | 43 | [B<-text>] |
76b46e77 DSH |
44 | [B<-indef>] |
45 | [B<-noindef>] | |
46 | [B<-stream>] | |
e8769719 | 47 | [B<-md> I<digest>] |
9fcb9702 | 48 | {- $OpenSSL::safe::opt_trust_synopsis -} |
d55e4487 | 49 | {- $OpenSSL::safe::opt_engine_synopsis -}{- $OpenSSL::safe::opt_r_synopsis -} |
21d08b9e | 50 | {- $OpenSSL::safe::opt_v_synopsis -} |
6bd4e3f2 | 51 | {- $OpenSSL::safe::opt_provider_synopsis -} |
90a1f2d7 | 52 | {- $OpenSSL::safe::opt_config_synopsis -} |
6d382c74 | 53 | I<recipcert> ... |
e3775a33 | 54 | |
9f3c076b | 55 | =for openssl ifdef engine |
1738c0ce | 56 | |
e3775a33 DSH |
57 | =head1 DESCRIPTION |
58 | ||
35a810bb RL |
59 | This command handles S/MIME mail. It can encrypt, decrypt, sign |
60 | and verify S/MIME messages. | |
e3775a33 | 61 | |
3dfda1a6 | 62 | =head1 OPTIONS |
e3775a33 | 63 | |
76b46e77 | 64 | There are six operation options that set the type of operation to be performed. |
e3775a33 DSH |
65 | The meaning of the other options varies according to the operation type. |
66 | ||
67 | =over 4 | |
68 | ||
169394d4 MR |
69 | =item B<-help> |
70 | ||
71 | Print out a usage message. | |
72 | ||
e3775a33 DSH |
73 | =item B<-encrypt> |
74 | ||
c4de074e | 75 | Encrypt mail for the given recipient certificates. Input file is the message |
e3775a33 DSH |
76 | to be encrypted. The output file is the encrypted mail in MIME format. |
77 | ||
2a9afa40 RS |
78 | Note that no revocation check is done for the recipient cert, so if that |
79 | key has been compromised, others may be able to decrypt the text. | |
80 | ||
e3775a33 DSH |
81 | =item B<-decrypt> |
82 | ||
c4de074e | 83 | Decrypt mail using the supplied certificate and private key. Expects an |
e3775a33 DSH |
84 | encrypted mail message in MIME format for the input file. The decrypted mail |
85 | is written to the output file. | |
86 | ||
87 | =item B<-sign> | |
88 | ||
c4de074e | 89 | Sign mail using the supplied certificate and private key. Input file is |
e3775a33 DSH |
90 | the message to be signed. The signed message in MIME format is written |
91 | to the output file. | |
92 | ||
93 | =item B<-verify> | |
94 | ||
c4de074e | 95 | Verify signed mail. Expects a signed mail message on input and outputs |
e3775a33 DSH |
96 | the signed data. Both clear text and opaque signing is supported. |
97 | ||
98 | =item B<-pk7out> | |
99 | ||
c4de074e | 100 | Takes an input message and writes out a PEM encoded PKCS#7 structure. |
e3775a33 | 101 | |
d884c5ba DSH |
102 | =item B<-resign> |
103 | ||
c4de074e | 104 | Resign a message: take an existing message and one or more new signers. |
d884c5ba | 105 | |
e8769719 | 106 | =item B<-in> I<filename> |
e3775a33 | 107 | |
c4de074e | 108 | The input message to be encrypted or signed or the MIME message to |
e3775a33 DSH |
109 | be decrypted or verified. |
110 | ||
e8769719 | 111 | =item B<-out> I<filename> |
e3775a33 | 112 | |
c4de074e | 113 | The message text that has been decrypted or verified or the output MIME |
e3775a33 DSH |
114 | format message that has been signed or verified. |
115 | ||
777182a0 RS |
116 | =item B<-inform> B<DER>|B<PEM>|B<SMIME> |
117 | ||
118 | The input format of the PKCS#7 (S/MIME) structure (if one is being read); | |
119 | the default is B<SMIME>. | |
ac093b3f | 120 | See L<openssl-format-options(1)/Format Options> for details. |
777182a0 | 121 | |
e8769719 | 122 | =item B<-outform> B<DER>|B<PEM>|B<SMIME> |
fd13f0ee | 123 | |
777182a0 RS |
124 | The output format of the PKCS#7 (S/MIME) structure (if one is being written); |
125 | the default is B<SMIME>. | |
ac093b3f | 126 | See L<openssl-format-options(1)/Format Options> for details. |
777182a0 | 127 | |
6d382c74 | 128 | =item B<-keyform> B<DER>|B<PEM>|B<P12>|B<ENGINE> |
777182a0 RS |
129 | |
130 | The key format; the default is B<PEM>. | |
6d382c74 | 131 | The only value with effect is B<ENGINE>; all others have become obsolete. |
ac093b3f | 132 | See L<openssl-format-options(1)/Format Options> for details. |
fd13f0ee | 133 | |
e8769719 | 134 | =item B<-stream>, B<-indef>, B<-noindef> |
76b46e77 | 135 | |
c4de074e | 136 | The B<-stream> and B<-indef> options are equivalent and enable streaming I/O |
76b46e77 DSH |
137 | for encoding operations. This permits single pass processing of data without |
138 | the need to hold the entire contents in memory, potentially supporting very | |
139 | large files. Streaming is automatically set for S/MIME signing with detached | |
140 | data if the output format is B<SMIME> it is currently off by default for all | |
141 | other operations. | |
142 | ||
143 | =item B<-noindef> | |
144 | ||
c4de074e | 145 | Disable streaming I/O where it would produce and indefinite length constructed |
76b46e77 DSH |
146 | encoding. This option currently has no effect. In future streaming will be |
147 | enabled by default on all relevant operations and this option will disable it. | |
148 | ||
e8769719 | 149 | =item B<-content> I<filename> |
fd13f0ee DSH |
150 | |
151 | This specifies a file containing the detached content, this is only | |
152 | useful with the B<-verify> command. This is only usable if the PKCS#7 | |
153 | structure is using the detached signature form where the content is | |
154 | not included. This option will override any content if the input format | |
155 | is S/MIME and it uses the multipart/signed MIME content type. | |
156 | ||
e3775a33 DSH |
157 | =item B<-text> |
158 | ||
c4de074e | 159 | This option adds plain text (text/plain) MIME headers to the supplied |
e3775a33 | 160 | message if encrypting or signing. If decrypting or verifying it strips |
1bc74519 | 161 | off text headers: if the decrypted or verified message is not of MIME |
e3775a33 DSH |
162 | type text/plain then an error occurs. |
163 | ||
e8769719 | 164 | =item B<-md> I<digest> |
d884c5ba | 165 | |
c4de074e | 166 | Digest algorithm to use when signing or resigning. If not present then the |
d884c5ba DSH |
167 | default digest algorithm for the signing key will be used (usually SHA1). |
168 | ||
8dc57d76 | 169 | =item B<-I<cipher>> |
e3775a33 | 170 | |
c4de074e | 171 | The encryption algorithm to use. For example DES (56 bits) - B<-des>, |
e5fa864f | 172 | triple DES (168 bits) - B<-des3>, |
1bc74519 | 173 | EVP_get_cipherbyname() function) can also be used preceded by a dash, for |
35a810bb | 174 | example B<-aes-128-cbc>. See L<openssl-enc(1)> for list of ciphers |
e5fa864f | 175 | supported by your version of OpenSSL. |
d884c5ba | 176 | |
6f719f06 | 177 | If not specified triple DES is used. Only used with B<-encrypt>. |
e3775a33 DSH |
178 | |
179 | =item B<-nointern> | |
180 | ||
c4de074e | 181 | When verifying a message normally certificates (if any) included in |
e3775a33 DSH |
182 | the message are searched for the signing certificate. With this option |
183 | only the certificates specified in the B<-certfile> option are used. | |
184 | The supplied certificates can still be used as untrusted CAs however. | |
185 | ||
186 | =item B<-noverify> | |
187 | ||
c4de074e | 188 | Do not verify the signers certificate of a signed message. |
e3775a33 DSH |
189 | |
190 | =item B<-nochain> | |
191 | ||
65718c51 | 192 | Do not do chain verification of signers certificates; that is, do not |
e3775a33 DSH |
193 | use the certificates in the signed message as untrusted CAs. |
194 | ||
195 | =item B<-nosigs> | |
196 | ||
c4de074e | 197 | Don't try to verify the signatures on the message. |
e3775a33 DSH |
198 | |
199 | =item B<-nocerts> | |
200 | ||
c4de074e | 201 | When signing a message the signer's certificate is normally included |
e3775a33 DSH |
202 | with this option it is excluded. This will reduce the size of the |
203 | signed message but the verifier must have a copy of the signers certificate | |
204 | available locally (passed using the B<-certfile> option for example). | |
205 | ||
206 | =item B<-noattr> | |
207 | ||
c4de074e | 208 | Normally when a message is signed a set of attributes are included which |
e3775a33 DSH |
209 | include the signing time and supported symmetric algorithms. With this |
210 | option they are not included. | |
211 | ||
65718c51 RS |
212 | =item B<-nodetach> |
213 | ||
214 | When signing a message use opaque signing. This form is more resistant | |
215 | to translation by mail relays but it cannot be read by mail agents that | |
216 | do not support S/MIME. Without this option cleartext signing with | |
217 | the MIME type multipart/signed is used. | |
218 | ||
219 | =item B<-nosmimecap> | |
220 | ||
221 | When signing a message, do not include the B<SMIMECapabilities> attribute. | |
222 | ||
e3775a33 DSH |
223 | =item B<-binary> |
224 | ||
c4de074e | 225 | Normally the input message is converted to "canonical" format which is |
3fc9635e DSH |
226 | effectively using CR and LF as end of line: as required by the S/MIME |
227 | specification. When this option is present no translation occurs. This | |
228 | is useful when handling binary data which may not be in MIME format. | |
e3775a33 | 229 | |
2197494d DSH |
230 | =item B<-crlfeol> |
231 | ||
c4de074e | 232 | Normally the output file uses a single B<LF> as end of line. When this |
2197494d DSH |
233 | option is present B<CRLF> is used instead. |
234 | ||
e8769719 | 235 | =item B<-certfile> I<file> |
e3775a33 | 236 | |
c4de074e | 237 | Allows additional certificates to be specified. When signing these will |
e3775a33 | 238 | be included with the message. When verifying these will be searched for |
6d382c74 | 239 | the signers certificates. |
b3c5aadf | 240 | The input can be in PEM, DER, or PKCS#12 format. |
e3775a33 | 241 | |
e8769719 | 242 | =item B<-signer> I<file> |
e3775a33 | 243 | |
c4de074e | 244 | A signing certificate when signing or resigning a message, this option can be |
d884c5ba DSH |
245 | used multiple times if more than one signer is required. If a message is being |
246 | verified then the signers certificates will be written to this file if the | |
247 | verification was successful. | |
e3775a33 | 248 | |
65718c51 RS |
249 | =item B<-nocerts> |
250 | ||
251 | Don't include signers certificate when signing. | |
252 | ||
253 | =item B<-noattr> | |
254 | ||
255 | Don't include any signed attributes when signing. | |
256 | ||
e8769719 | 257 | =item B<-recip> I<file> |
e3775a33 | 258 | |
c4de074e | 259 | The recipients certificate when decrypting a message. This certificate |
e3775a33 DSH |
260 | must match one of the recipients of the message or an error occurs. |
261 | ||
f91d003a | 262 | =item B<-inkey> I<filename>|I<uri> |
e3775a33 | 263 | |
c4de074e | 264 | The private key to use when signing or decrypting. This must match the |
e3775a33 DSH |
265 | corresponding certificate. If this option is not specified then the |
266 | private key must be included in the certificate file specified with | |
d884c5ba DSH |
267 | the B<-recip> or B<-signer> file. When signing this option can be used |
268 | multiple times to specify successive keys. | |
e3775a33 | 269 | |
e8769719 | 270 | =item B<-passin> I<arg> |
84b65340 | 271 | |
2f0ea936 | 272 | The private key password source. For more information about the format of I<arg> |
ac093b3f | 273 | see L<openssl-passphrase-options(1)/Pass Phrase Options>. |
84b65340 | 274 | |
8dc57d76 | 275 | =item B<-to>, B<-from>, B<-subject> |
e3775a33 | 276 | |
c4de074e | 277 | The relevant mail headers. These are included outside the signed |
e3775a33 DSH |
278 | portion of a message so they may be included manually. If signing |
279 | then many S/MIME mail clients check the signers certificate's email | |
280 | address matches that specified in the From: address. | |
281 | ||
21d08b9e | 282 | {- $OpenSSL::safe::opt_v_item -} |
e5fa864f | 283 | |
21d08b9e | 284 | Any verification errors cause the command to exit. |
e5fa864f | 285 | |
9fcb9702 RS |
286 | {- $OpenSSL::safe::opt_trust_item -} |
287 | ||
65718c51 RS |
288 | {- $OpenSSL::safe::opt_engine_item -} |
289 | ||
9fcb9702 RS |
290 | {- $OpenSSL::safe::opt_r_item -} |
291 | ||
6bd4e3f2 P |
292 | {- $OpenSSL::safe::opt_provider_item -} |
293 | ||
90a1f2d7 SL |
294 | {- $OpenSSL::safe::opt_config_item -} |
295 | ||
6d382c74 | 296 | =item I<recipcert> ... |
b1c0cc24 RL |
297 | |
298 | One or more certificates of message recipients, used when encrypting | |
299 | a message. | |
300 | ||
e3775a33 DSH |
301 | =back |
302 | ||
303 | =head1 NOTES | |
304 | ||
305 | The MIME message must be sent without any blank lines between the | |
306 | headers and the output. Some mail programs will automatically add | |
307 | a blank line. Piping the mail directly to sendmail is one way to | |
308 | achieve the correct format. | |
309 | ||
3fc9635e | 310 | The supplied message to be signed or encrypted must include the |
60250017 | 311 | necessary MIME headers or many S/MIME clients won't display it |
3fc9635e DSH |
312 | properly (if at all). You can use the B<-text> option to automatically |
313 | add plain text headers. | |
314 | ||
e3775a33 DSH |
315 | A "signed and encrypted" message is one where a signed message is |
316 | then encrypted. This can be produced by encrypting an already signed | |
3fc9635e | 317 | message: see the examples section. |
e3775a33 DSH |
318 | |
319 | This version of the program only allows one signer per message but it | |
320 | will verify multiple signers on received messages. Some S/MIME clients | |
19d2bb57 | 321 | choke if a message contains multiple signers. It is possible to sign |
e3775a33 DSH |
322 | messages "in parallel" by signing an already signed message. |
323 | ||
3fc9635e DSH |
324 | The options B<-encrypt> and B<-decrypt> reflect common usage in S/MIME |
325 | clients. Strictly speaking these process PKCS#7 enveloped data: PKCS#7 | |
326 | encrypted data is used for other purposes. | |
327 | ||
d884c5ba DSH |
328 | The B<-resign> option uses an existing message digest when adding a new |
329 | signer. This means that attributes must be present in at least one existing | |
330 | signer using the same message digest or this operation will fail. | |
331 | ||
e4ef2e25 | 332 | The B<-stream> and B<-indef> options enable streaming I/O support. |
76b46e77 DSH |
333 | As a result the encoding is BER using indefinite length constructed encoding |
334 | and no longer DER. Streaming is supported for the B<-encrypt> operation and the | |
335 | B<-sign> operation if the content is not detached. | |
336 | ||
337 | Streaming is always used for the B<-sign> operation with detached data but | |
338 | since the content is no longer part of the PKCS#7 structure the encoding | |
339 | remains DER. | |
340 | ||
e3775a33 DSH |
341 | =head1 EXIT CODES |
342 | ||
343 | =over 4 | |
344 | ||
c8919dde | 345 | =item Z<>0 |
e3775a33 | 346 | |
c4de074e | 347 | The operation was completely successfully. |
e3775a33 | 348 | |
c8919dde | 349 | =item Z<>1 |
e3775a33 | 350 | |
c4de074e | 351 | An error occurred parsing the command options. |
e3775a33 | 352 | |
c8919dde | 353 | =item Z<>2 |
e3775a33 | 354 | |
c4de074e | 355 | One of the input files could not be read. |
e3775a33 | 356 | |
c8919dde | 357 | =item Z<>3 |
e3775a33 | 358 | |
c4de074e | 359 | An error occurred creating the PKCS#7 file or when reading the MIME |
e3775a33 DSH |
360 | message. |
361 | ||
c8919dde | 362 | =item Z<>4 |
e3775a33 | 363 | |
c4de074e | 364 | An error occurred decrypting or verifying the message. |
e3775a33 | 365 | |
c8919dde | 366 | =item Z<>5 |
e3775a33 | 367 | |
c4de074e | 368 | The message was verified correctly but an error occurred writing out |
e3775a33 DSH |
369 | the signers certificates. |
370 | ||
371 | =back | |
372 | ||
373 | =head1 EXAMPLES | |
374 | ||
3fc9635e DSH |
375 | Create a cleartext signed message: |
376 | ||
1675f6eb | 377 | openssl smime -sign -in message.txt -text -out mail.msg \ |
1bc74519 | 378 | -signer mycert.pem |
3fc9635e | 379 | |
0d638dc1 | 380 | Create an opaque signed message: |
3fc9635e | 381 | |
1675f6eb | 382 | openssl smime -sign -in message.txt -text -out mail.msg -nodetach \ |
1bc74519 | 383 | -signer mycert.pem |
3fc9635e DSH |
384 | |
385 | Create a signed message, include some additional certificates and | |
386 | read the private key from another file: | |
387 | ||
1675f6eb | 388 | openssl smime -sign -in in.txt -text -out mail.msg \ |
1bc74519 | 389 | -signer mycert.pem -inkey mykey.pem -certfile mycerts.pem |
3fc9635e | 390 | |
d884c5ba DSH |
391 | Create a signed message with two signers: |
392 | ||
393 | openssl smime -sign -in message.txt -text -out mail.msg \ | |
1bc74519 | 394 | -signer mycert.pem -signer othercert.pem |
d884c5ba | 395 | |
3fc9635e DSH |
396 | Send a signed message under Unix directly to sendmail, including headers: |
397 | ||
1675f6eb | 398 | openssl smime -sign -in in.txt -text -signer mycert.pem \ |
1bc74519 RS |
399 | -from steve@openssl.org -to someone@somewhere \ |
400 | -subject "Signed message" | sendmail someone@somewhere | |
3fc9635e DSH |
401 | |
402 | Verify a message and extract the signer's certificate if successful: | |
403 | ||
404 | openssl smime -verify -in mail.msg -signer user.pem -out signedtext.txt | |
405 | ||
406 | Send encrypted mail using triple DES: | |
407 | ||
1675f6eb | 408 | openssl smime -encrypt -in in.txt -from steve@openssl.org \ |
1bc74519 RS |
409 | -to someone@somewhere -subject "Encrypted message" \ |
410 | -des3 user.pem -out mail.msg | |
3fc9635e DSH |
411 | |
412 | Sign and encrypt mail: | |
413 | ||
1675f6eb | 414 | openssl smime -sign -in ml.txt -signer my.pem -text \ |
1bc74519 RS |
415 | | openssl smime -encrypt -out mail.msg \ |
416 | -from steve@openssl.org -to someone@somewhere \ | |
417 | -subject "Signed and Encrypted message" -des3 user.pem | |
3fc9635e | 418 | |
d884c5ba DSH |
419 | Note: the encryption command does not include the B<-text> option because the |
420 | message being encrypted already has MIME headers. | |
3fc9635e DSH |
421 | |
422 | Decrypt mail: | |
423 | ||
424 | openssl smime -decrypt -in mail.msg -recip mycert.pem -inkey key.pem | |
425 | ||
fd13f0ee DSH |
426 | The output from Netscape form signing is a PKCS#7 structure with the |
427 | detached signature format. You can use this program to verify the | |
428 | signature by line wrapping the base64 encoded structure and surrounding | |
429 | it with: | |
430 | ||
a8c12555 DSH |
431 | -----BEGIN PKCS7----- |
432 | -----END PKCS7----- | |
fd13f0ee | 433 | |
1bc74519 | 434 | and using the command: |
fd13f0ee DSH |
435 | |
436 | openssl smime -verify -inform PEM -in signature.pem -content content.txt | |
437 | ||
0d638dc1 | 438 | Alternatively you can base64 decode the signature and use: |
fd13f0ee DSH |
439 | |
440 | openssl smime -verify -inform DER -in signature.der -content content.txt | |
441 | ||
f3dea9a5 BM |
442 | Create an encrypted message using 128 bit Camellia: |
443 | ||
444 | openssl smime -encrypt -in plain.txt -camellia128 -out mail.msg cert.pem | |
445 | ||
d884c5ba DSH |
446 | Add a signer to an existing message: |
447 | ||
448 | openssl smime -resign -in mail.msg -signer newsign.pem -out mail2.msg | |
449 | ||
3fc9635e DSH |
450 | =head1 BUGS |
451 | ||
d884c5ba DSH |
452 | The MIME parser isn't very clever: it seems to handle most messages that I've |
453 | thrown at it but it may choke on others. | |
3fc9635e | 454 | |
d884c5ba DSH |
455 | The code currently will only write out the signer's certificate to a file: if |
456 | the signer has a separate encryption certificate this must be manually | |
457 | extracted. There should be some heuristic that determines the correct | |
458 | encryption certificate. | |
3fc9635e | 459 | |
d884c5ba DSH |
460 | Ideally a database should be maintained of a certificates for each email |
461 | address. | |
3fc9635e DSH |
462 | |
463 | The code doesn't currently take note of the permitted symmetric encryption | |
7e0de9e8 | 464 | algorithms as supplied in the SMIMECapabilities signed attribute. This means the |
3fc9635e DSH |
465 | user has to manually include the correct encryption algorithm. It should store |
466 | the list of permitted ciphers in a database and only use those. | |
467 | ||
468 | No revocation checking is done on the signer's certificate. | |
469 | ||
470 | The current code can only handle S/MIME v2 messages, the more complex S/MIME v3 | |
471 | structures may cause parsing errors. | |
e3775a33 | 472 | |
fd3397fc RL |
473 | =head1 SEE ALSO |
474 | ||
475 | L<ossl_store-file(7)> | |
476 | ||
d884c5ba DSH |
477 | =head1 HISTORY |
478 | ||
479 | The use of multiple B<-signer> options and the B<-resign> command were first | |
fb552ac6 | 480 | added in OpenSSL 1.0.0 |
d884c5ba | 481 | |
fc5ecadd | 482 | The -no_alt_chains option was added in OpenSSL 1.1.0. |
d884c5ba | 483 | |
6d382c74 DDO |
484 | All B<-keyform> values except B<ENGINE> have become obsolete in OpenSSL 3.0.0 |
485 | and have no effect. | |
486 | ||
0f221d9c P |
487 | The B<-engine> option was deprecated in OpenSSL 3.0. |
488 | ||
e2f92610 RS |
489 | =head1 COPYRIGHT |
490 | ||
33388b44 | 491 | Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved. |
e2f92610 | 492 | |
449040b4 | 493 | Licensed under the Apache License 2.0 (the "License"). You may not use |
e2f92610 RS |
494 | this file except in compliance with the License. You can obtain a copy |
495 | in the file LICENSE in the source distribution or at | |
496 | L<https://www.openssl.org/source/license.html>. | |
497 | ||
498 | =cut |