diff options
Diffstat (limited to 'upstream/archlinux/man7/life_cycle-rand.7ssl')
| -rw-r--r-- | upstream/archlinux/man7/life_cycle-rand.7ssl | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/upstream/archlinux/man7/life_cycle-rand.7ssl b/upstream/archlinux/man7/life_cycle-rand.7ssl new file mode 100644 index 00000000..d088105c --- /dev/null +++ b/upstream/archlinux/man7/life_cycle-rand.7ssl @@ -0,0 +1,153 @@ +.\" -*- mode: troff; coding: utf-8 -*- +.\" Automatically generated by Pod::Man 5.01 (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 +.. +.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. +.ie n \{\ +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. 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 +.\" ======================================================================== +.\" +.IX Title "LIFE_CYCLE-RAND 7ssl" +.TH LIFE_CYCLE-RAND 7ssl 2024-01-30 3.2.1 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\-rand \- The RAND algorithm life\-cycle +.SH DESCRIPTION +.IX Header "DESCRIPTION" +All random number generator (RANDs) +go through a number of stages in their life-cycle: +.IP start 4 +.IX Item "start" +This state represents the RAND 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 RAND after it has been allocated but unable to +generate any output. +.IP instantiated 4 +.IX Item "instantiated" +This state represents the RAND when it is set up and capable of generating +output. +.IP uninstantiated 4 +.IX Item "uninstantiated" +This state represents the RAND when it has been shutdown and it is no longer +capable of generating output. +.IP freed 4 +.IX Item "freed" +This state is entered when the RAND 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 RAND is illustrated: + +-------------------------+ + | start | + +-------------------------+ + | + | EVP_RAND_CTX_new + v + +-------------------------+ + | newed | + +-------------------------+ + | + | EVP_RAND_instantiate + v + EVP_RAND_generate +-------------------------+ + +-------------------- | | + | | instantiated | + +-------------------> | | <+ + +-------------------------+ ' + | ' + | EVP_RAND_uninstantiate ' EVP_RAND_instantiate + v ' + +-------------------------+ ' + | uninstantiated | -+ + +-------------------------+ + | + | EVP_RAND_CTX_free + v + +-------------------------+ + | 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 instantiated uninstantiated freed + EVP_RAND_CTX_new newed + EVP_RAND_instantiate instantiated + EVP_RAND_generate instantiated + EVP_RAND_uninstantiate uninstantiated + EVP_RAND_CTX_free freed freed freed freed + EVP_RAND_CTX_get_params newed instantiated uninstantiated freed + EVP_RAND_CTX_set_params newed instantiated uninstantiated freed + EVP_RAND_CTX_gettable_params newed instantiated uninstantiated freed + EVP_RAND_CTX_settable_params newed instantiated uninstantiated freed +.SH NOTES +.IX Header "NOTES" +At some point the EVP layer will begin enforcing the transitions described +herein. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fBprovider\-rand\fR\|(7), \fBEVP_RAND\fR\|(3). +.SH HISTORY +.IX Header "HISTORY" +The provider RAND interface was introduced in OpenSSL 3.0. +.SH COPYRIGHT +.IX Header "COPYRIGHT" +Copyright 2021 The OpenSSL Project Authors. All Rights Reserved. +.PP +Licensed under the Apache License 2.0 (the "License"). You may not use +this file except in compliance with the License. You can obtain a copy +in the file LICENSE in the source distribution or at +<https://www.openssl.org/source/license.html>. |