Added OpensslRandPseudo random source. #25
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This uses openssl_random_pseudo_bytes. This is suggested for use only with
with php5-openssl compiled against LibreSSL:
OpenSSL copying RNG state on fork:
ramsey/uuid#80 (comment)
Fixed in LibreSSL:
http://opensslrampage.org/post/91910269738/fix-for-the-libressl-prng-issue-under-linux
Additionally, CVE-2015-8867 was fixed only in versions 5.6.12, 5.5.28,
5.4.44 and above:
https://bugs.php.net/bug.php?id=70014
http://www.php.net/ChangeLog-5.php
CVE-2015-8867 does not affect versions compiled against LibreSSL.
For these reasons, it only is considered a LOW source of randomness,
unless it is compiled against LibreSSL.
The reason for this to exist at all is because of problems with the
nature of /dev/urandom. For example, if we cannot open or read the
file. openssl_random_pseudo_bytes should never fail.
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This uses openssl_random_pseudo_bytes. This is suggested for use only with
with php5-openssl compiled against LibreSSL:
OpenSSL copying RNG state on fork:
ramsey/uuid#80 (comment)
Fixed in LibreSSL:
http://opensslrampage.org/post/91910269738/fix-for-the-libressl-prng-issue-under-linux
Additionally, CVE-2015-8867 was fixed only in versions 5.6.12, 5.5.28,
5.4.44 and above:
https://bugs.php.net/bug.php?id=70014
http://www.php.net/ChangeLog-5.php
CVE-2015-8867 does not affect versions compiled against LibreSSL.
For these reasons, it only is considered a LOW source of randomness,
unless it is compiled against LibreSSL.
The reason for this to exist at all is because of problems with the
nature of /dev/urandom. For example, if we cannot open or read the
file. openssl_random_pseudo_bytes should never fail.