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55 lines
1.1 KiB
55 lines
1.1 KiB
=pod |
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=head1 NAME |
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rand - generate pseudo-random bytes |
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=head1 SYNOPSIS |
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B<openssl rand> |
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[B<-out> I<file>] |
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[B<-rand> I<file(s)>] |
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[B<-base64>] |
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[B<-hex>] |
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I<num> |
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=head1 DESCRIPTION |
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The B<rand> command outputs I<num> pseudo-random bytes after seeding |
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the random number generator once. As in other B<openssl> command |
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line tools, PRNG seeding uses the file I<$HOME/>B<.rnd> or B<.rnd> |
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in addition to the files given in the B<-rand> option. A new |
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I<$HOME>/B<.rnd> or B<.rnd> file will be written back if enough |
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seeding was obtained from these sources. |
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=head1 OPTIONS |
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=over 4 |
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=item B<-out> I<file> |
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Write to I<file> instead of standard output. |
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=item B<-rand> I<file(s)> |
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Use specified file or files or EGD socket (see L<RAND_egd(3)|RAND_egd(3)>) |
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for seeding the random number generator. |
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Multiple files can be specified separated by a OS-dependent character. |
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The separator is B<;> for MS-Windows, B<,> for OpenVMS, and B<:> for |
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all others. |
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=item B<-base64> |
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Perform base64 encoding on the output. |
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=item B<-hex> |
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Show the output as a hex string. |
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=back |
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=head1 SEE ALSO |
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L<RAND_bytes(3)|RAND_bytes(3)> |
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=cut
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