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Import OpenSSL 1.1.1f

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Steve Dower
2020-04-03 21:53:21 +01:00
parent 6f2f71e7ea
commit e531386a2f
993 changed files with 23821 additions and 3602 deletions
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26
doc/man3/RAND_bytes.pod
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@@ -19,8 +19,8 @@ Deprecated:
=head1 DESCRIPTION
RAND_bytes() puts B<num> cryptographically strong pseudo-random bytes
into B<buf>.
RAND_bytes() generates B<num> random bytes using a cryptographically
secure pseudo random generator (CSPRNG) and stores them in B<buf>.
RAND_priv_bytes() has the same semantics as RAND_bytes(). It is intended to
be used for generating values that should remain private. If using the
@@ -31,10 +31,22 @@ and L<RAND_DRBG(7)>.
=head1 NOTES
Always check the error return value of RAND_bytes() and
RAND_priv_bytes() and do not take randomness for granted: an error occurs
if the CSPRNG has not been seeded with enough randomness to ensure an
unpredictable byte sequence.
By default, the OpenSSL CSPRNG supports a security level of 256 bits, provided it
was able to seed itself from a trusted entropy source.
On all major platforms supported by OpenSSL (including the Unix-like platforms
and Windows), OpenSSL is configured to automatically seed the CSPRNG on first use
using the operating systems's random generator.
If the entropy source fails or is not available, the CSPRNG will enter an
error state and refuse to generate random bytes. For that reason, it is important
to always check the error return value of RAND_bytes() and RAND_priv_bytes() and
not take randomness for granted.
On other platforms, there might not be a trusted entropy source available
or OpenSSL might have been explicitly configured to use different entropy sources.
If you are in doubt about the quality of the entropy source, don't hesitate to ask
your operating system vendor or post a question on GitHub or the openssl-users
mailing list.
=head1 RETURN VALUES
@@ -68,7 +80,7 @@ The RAND_priv_bytes() function was added in OpenSSL 1.1.1.
=head1 COPYRIGHT
Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy