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| author | Tony Cook <tony@develop-help.com> | 2016-12-08 14:14:11 +1100 |
|---|---|---|
| committer | Tony Cook <tony@develop-help.com> | 2017-01-09 10:12:24 +1100 |
| commit | 95309d6ba0f3066cdc457f5fb82ab4e6e01a2c98 (patch) | |
| tree | c8f985d9927837551a59f3ed0a1cd99a23d79313 /INSTALL | |
| parent | 33874d2ee2164003685ac15eb106c9356ccf586e (diff) | |
| download | perl-95309d6ba0f3066cdc457f5fb82ab4e6e01a2c98.tar.gz | |
add build options to disable the PERL_HASH* and PERL_PERTURB_KEYS env vars
These variables either control or reveal information used in perl's
hash implementation that a careful user may not want controlled or
exposed.
Diffstat (limited to 'INSTALL')
| -rw-r--r-- | INSTALL | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -423,6 +423,13 @@ See L<perlrun/PERL_HASH_SEED> and L<perlrun/PERL_PERTURB_KEYS> for details on the environment variables, and L<perlsec/Algorithmic Complexity Attacks> for further security details. +The C<PERL_HASH_SEED> and PERL_PERTURB_KEYS> environment variables can +be disabled by building configuring perl with +C<-Accflags=-DNO_PERL_HASH_ENV>. + +The C<PERL_HASH_SEED_DEBUG> environment variable can be disabled by +configuring perl with C<-Accflags=-DNO_PERL_HASH_SEED_DEBUG>. + =head3 SOCKS Perl can be configured to be 'socksified', that is, to use the SOCKS |