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18 .\" Set up some character translations and predefined strings. \*(-- will
24 .tr \(*W-
27 . ds -- \(*W-
29 . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
30 . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
37 . ds -- \|\(em\|
50 .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
71 .\" Fear. Run. Save yourself. No user-serviceable parts.
81 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
97 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
98 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
99 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
100 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
101 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
102 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
104 . \" troff and (daisy-wheel) nroff accents
121 . ds 8 ss
123 . ds d- d\h'-1'\(ga
124 . ds D- D\h'-1'\(hy
133 .IX Title "OPENSSL-RAND 1ossl"
134 .TH OPENSSL-RAND 1ossl "2023-09-22" "3.0.11" "OpenSSL"
140 openssl\-rand \- generate pseudo\-random bytes
144 [\fB\-help\fR]
145 [\fB\-out\fR \fIfile\fR]
146 [\fB\-base64\fR]
147 [\fB\-hex\fR]
148 [\fB\-engine\fR \fIid\fR]
149 [\fB\-rand\fR \fIfiles\fR]
150 [\fB\-writerand\fR \fIfile\fR]
151 [\fB\-provider\fR \fIname\fR]
152 [\fB\-provider\-path\fR \fIpath\fR]
153 [\fB\-propquery\fR \fIpropq\fR]
157 This command generates \fInum\fR random bytes using a cryptographically
158 secure pseudo random number generator (\s-1CSPRNG\s0).
161 which provides a security level of 256 bits, provided it managed to
164 For more details, see \fBRAND_bytes\fR\|(3), \s-1\fBRAND\s0\fR\|(7), and \s-1\fBEVP_RAND\s0\fR\|(7).
167 .IP "\fB\-help\fR" 4
168 .IX Item "-help"
170 .IP "\fB\-out\fR \fIfile\fR" 4
171 .IX Item "-out file"
173 .IP "\fB\-base64\fR" 4
174 .IX Item "-base64"
176 .IP "\fB\-hex\fR" 4
177 .IX Item "-hex"
179 .IP "\fB\-engine\fR \fIid\fR" 4
180 .IX Item "-engine id"
183 .IP "\fB\-rand\fR \fIfiles\fR, \fB\-writerand\fR \fIfile\fR" 4
184 .IX Item "-rand files, -writerand file"
186 .IP "\fB\-provider\fR \fIname\fR" 4
187 .IX Item "-provider name"
189 .IP "\fB\-provider\-path\fR \fIpath\fR" 4
190 .IX Item "-provider-path path"
191 .IP "\fB\-propquery\fR \fIpropq\fR" 4
192 .IX Item "-propquery propq"
199 \&\s-1\fBRAND\s0\fR\|(7),
200 \&\s-1\fBEVP_RAND\s0\fR\|(7)
203 The \fB\-engine\fR option was deprecated in OpenSSL 3.0.
206 Copyright 2000\-2021 The OpenSSL Project Authors. All Rights Reserved.
210 in the file \s-1LICENSE\s0 in the source distribution or at