1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
|
.\" Automatically generated by Pod::Man 4.14 (Pod::Simple 3.43)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings. \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote. \*(C+ will
.\" give a nicer C++. Capital omega is used to do unbreakable dashes and
.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
. ds -- \(*W-
. ds PI pi
. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
. ds L" ""
. ds R" ""
. ds C` ""
. ds C' ""
'br\}
.el\{\
. ds -- \|\(em\|
. ds PI \(*p
. ds L" ``
. ds R" ''
. ds C`
. ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD. Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
. if \nF \{\
. de IX
. tm Index:\\$1\t\\n%\t"\\$2"
..
. if !\nF==2 \{\
. nr % 0
. nr F 2
. \}
. \}
.\}
.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear. Run. Save yourself. No user-serviceable parts.
. \" fudge factors for nroff and troff
.if n \{\
. ds #H 0
. ds #V .8m
. ds #F .3m
. ds #[ \f1
. ds #] \fP
.\}
.if t \{\
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
. ds #V .6m
. ds #F 0
. ds #[ \&
. ds #] \&
.\}
. \" simple accents for nroff and troff
.if n \{\
. ds ' \&
. ds ` \&
. ds ^ \&
. ds , \&
. ds ~ ~
. ds /
.\}
.if t \{\
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
.\}
. \" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
. \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
. \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
. ds : e
. ds 8 ss
. ds o a
. ds d- d\h'-1'\(ga
. ds D- D\h'-1'\(hy
. ds th \o'bp'
. ds Th \o'LP'
. ds ae ae
. ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "LIFE_CYCLE-PKEY 7SSL"
.TH LIFE_CYCLE-PKEY 7SSL "2023-10-23" "3.0.11" "OpenSSL"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
life_cycle\-pkey \- The PKEY algorithm life\-cycle
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
All public keys (PKEYs) go through a number of stages in their life-cycle:
.IP "start" 4
.IX Item "start"
This state represents the \s-1PKEY\s0 before it has been allocated. It is the
starting state for any life-cycle transitions.
.IP "newed" 4
.IX Item "newed"
This state represents the \s-1PKEY\s0 after it has been allocated.
.IP "decapsulate" 4
.IX Item "decapsulate"
This state represents the \s-1PKEY\s0 when it is ready to perform a private key decapsulation
operation.
.IP "decrypt" 4
.IX Item "decrypt"
This state represents the \s-1PKEY\s0 when it is ready to decrypt some ciphertext.
.IP "derive" 4
.IX Item "derive"
This state represents the \s-1PKEY\s0 when it is ready to derive a shared secret.
.IP "digest sign" 4
.IX Item "digest sign"
This state represents the \s-1PKEY\s0 when it is ready to perform a private key signature
operation.
.IP "encapsulate" 4
.IX Item "encapsulate"
This state represents the \s-1PKEY\s0 when it is ready to perform a public key encapsulation
operation.
.IP "encrypt" 4
.IX Item "encrypt"
This state represents the \s-1PKEY\s0 when it is ready to encrypt some plaintext.
.IP "key generation" 4
.IX Item "key generation"
This state represents the \s-1PKEY\s0 when it is ready to generate a new public/private key.
.IP "parameter generation" 4
.IX Item "parameter generation"
This state represents the \s-1PKEY\s0 when it is ready to generate key parameters.
.IP "verify" 4
.IX Item "verify"
This state represents the \s-1PKEY\s0 when it is ready to verify a public key signature.
.IP "verify recover" 4
.IX Item "verify recover"
This state represents the \s-1PKEY\s0 when it is ready to recover a public key signature data.
.IP "freed" 4
.IX Item "freed"
This state is entered when the \s-1PKEY\s0 is freed. It is the terminal state
for all life-cycle transitions.
.SS "State Transition Diagram"
.IX Subsection "State Transition Diagram"
The usual life-cycle of a \s-1PKEY\s0 object is illustrated:
+-------------+
| |
| start |
| |
EVP_PKEY_derive +-------------+
+-------------+ EVP_PKEY_derive_set_peer | +-------------+
| |----------------------------+ | +----------------------------| |
| derive | | | | EVP_PKEY_verify | verify |
| |<---------------------------+ | +--------------------------->| |
+-------------+ | +-------------+
^ | ^
| EVP_PKEY_derive_init | EVP_PKEY_verify_init |
+---------------------------------------+ | +---------------------------------------+
| | |
+-------------+ | | | +-------------+
| |----------------------------+ | | | +----------------------------| |
| digest sign | EVP_PKEY_sign | | | | | EVP_PKEY_verify_recover | verify |
| |<---------------------------+ | | | +--------------------------->| recover |
+-------------+ | | | +-------------+
^ | | | ^
| EVP_PKEY_sign_init | | | EVP_PKEY_verify_recover_init |
+---------------------------------+ | | | +---------------------------------+
| | | | |
+-------------+ | | | | | +-------------+
| |----------------------------+ | | | | | +----------------------------| |
| decapsulate | EVP_PKEY_decapsulate | | | | | | | EVP_PKEY_decrypt | decrypt |
| |<---------------------------+ | | v | | +--------------------------->| |
+-------------+ | +-------------+ | +-------------+
^ +---| |---+ ^
| EVP_PKEY_decapsulate_init | | EVP_PKEY_decrypt_init |
+-------------------------------------| newed |-------------------------------------+
| |
+---| |---+
+-------------+ | +-------------+ | +-------------+
| |----------------------------+ | | | | +----------------------------| |
| encapsulate | EVP_PKEY_encapsulate | | | | | | EVP_PKEY_encrypt | encrypt |
| |<---------------------------+ | | | | +--------------------------->| |
+-------------+ | | | | +-------------+
^ | | | | ^
| EVP_PKEY_encapsulate_init | | | | EVP_PKEY_encrypt_init |
+---------------------------------+ | | +---------------------------------+
| |
+---------------------------------------+ +---------------------------------------+
| EVP_PKEY_paramgen_init EVP_PKEY_keygen_init |
v v
+-------------+ +-------------+
| |----------------------------+ +----------------------------| |
| parameter | | | | key |
| generation |<---------------------------+ +--------------------------->| generation |
+-------------+ EVP_PKEY_paramgen EVP_PKEY_keygen +-------------+
EVP_PKEY_gen EVP_PKEY_gen
+ - - - - - + +-----------+
' ' EVP_PKEY_CTX_free | |
' any state '------------------->| freed |
' ' | |
+ - - - - - + +-----------+
.SS "Formal State Transitions"
.IX Subsection "Formal State Transitions"
This section defines all of the legal state transitions.
This is the canonical list.
Function Call ---------------------------------------------------------------------- Current State ----------------------------------------------------------------------
start newed digest verify verify encrypt decrypt derive encapsulate decapsulate parameter key freed
sign recover generation generation
EVP_PKEY_CTX_new newed
EVP_PKEY_CTX_new_id newed
EVP_PKEY_CTX_new_from_name newed
EVP_PKEY_CTX_new_from_pkey newed
EVP_PKEY_sign_init digest digest digest digest digest digest digest digest digest digest digest
sign sign sign sign sign sign sign sign sign sign sign
EVP_PKEY_sign digest
sign
EVP_PKEY_verify_init verify verify verify verify verify verify verify verify verify verify verify
EVP_PKEY_verify verify
EVP_PKEY_verify_recover_init verify verify verify verify verify verify verify verify verify verify verify
recover recover recover recover recover recover recover recover recover recover recover
EVP_PKEY_verify_recover verify
recover
EVP_PKEY_encrypt_init encrypt encrypt encrypt encrypt encrypt encrypt encrypt encrypt encrypt encrypt encrypt
EVP_PKEY_encrypt encrypt
EVP_PKEY_decrypt_init decrypt decrypt decrypt decrypt decrypt decrypt decrypt decrypt decrypt decrypt decrypt
EVP_PKEY_decrypt decrypt
EVP_PKEY_derive_init derive derive derive derive derive derive derive derive derive derive derive
EVP_PKEY_derive_set_peer derive
EVP_PKEY_derive derive
EVP_PKEY_encapsulate_init encapsulate encapsulate encapsulate encapsulate encapsulate encapsulate encapsulate encapsulate encapsulate encapsulate encapsulate
EVP_PKEY_encapsulate encapsulate
EVP_PKEY_decapsulate_init decapsulate decapsulate decapsulate decapsulate decapsulate decapsulate decapsulate decapsulate decapsulate decapsulate decapsulate
EVP_PKEY_decapsulate decapsulate
EVP_PKEY_paramgen_init parameter parameter parameter parameter parameter parameter parameter parameter parameter parameter parameter
generation generation generation generation generation generation generation generation generation generation generation
EVP_PKEY_paramgen parameter
generation
EVP_PKEY_keygen_init key key key key key key key key key key key
generation generation generation generation generation generation generation generation generation generation generation
EVP_PKEY_keygen key
generation
EVP_PKEY_gen parameter key
generation generation
EVP_PKEY_CTX_get_params newed digest verify verify encrypt decrypt derive encapsulate decapsulate parameter key
sign recover generation generation
EVP_PKEY_CTX_set_params newed digest verify verify encrypt decrypt derive encapsulate decapsulate parameter key
sign recover generation generation
EVP_PKEY_CTX_gettable_params newed digest verify verify encrypt decrypt derive encapsulate decapsulate parameter key
sign recover generation generation
EVP_PKEY_CTX_settable_params newed digest verify verify encrypt decrypt derive encapsulate decapsulate parameter key
sign recover generation generation
EVP_PKEY_CTX_free freed freed freed freed freed freed freed freed freed freed freed freed
.SH "NOTES"
.IX Header "NOTES"
At some point the \s-1EVP\s0 layer will begin enforcing the transitions described
herein.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBEVP_PKEY_new\fR\|(3),
\&\fBEVP_PKEY_decapsulate\fR\|(3), \fBEVP_PKEY_decrypt\fR\|(3), \fBEVP_PKEY_encapsulate\fR\|(3),
\&\fBEVP_PKEY_encrypt\fR\|(3), \fBEVP_PKEY_derive\fR\|(3), \fBEVP_PKEY_keygen\fR\|(3),
\&\fBEVP_PKEY_sign\fR\|(3), \fBEVP_PKEY_verify\fR\|(3), \fBEVP_PKEY_verify_recover\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
The provider \s-1PKEY\s0 interface was introduced in OpenSSL 3.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2021\-2023 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the Apache License 2.0 (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>.
|
