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Clarify (non-)blocking behavior of EGD socket interface used by RAND_egd().

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Lutz Jänicke 2008-11-10 11:26:44 +00:00
parent 0afc9f5bc0
commit 706c5a4d35
1 changed files with 5 additions and 2 deletions
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doc/crypto/RAND_egd.pod
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@ -45,8 +45,11 @@ EGD is available from http://www.lothar.com/tech/crypto/ (C<perl
Makefile.PL; make; make install> to install). It is run as B<egd> Makefile.PL; make; make install> to install). It is run as B<egd>
I<path>, where I<path> is an absolute path designating a socket. When I<path>, where I<path> is an absolute path designating a socket. When
RAND_egd() is called with that path as an argument, it tries to read RAND_egd() is called with that path as an argument, it tries to read
random bytes that EGD has collected. The read is performed in random bytes that EGD has collected. RAND_egd() retrieves entropy from the
non-blocking mode. daemon using the daemon's "non-blocking read" command which shall
be answered immediately by the daemon without waiting for additional
entropy to be collected. The write and read socket operations in the
communication are blocking.
Alternatively, the EGD-interface compatible daemon PRNGD can be used. It is Alternatively, the EGD-interface compatible daemon PRNGD can be used. It is
available from available from