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change to dhparam to use the -dsaparam flag. faster, same level of security. also hides the output

This commit is contained in:
Bill Cromie 2016-12-05 14:47:04 -05:00
parent 61105b1ec3
commit d36416e2fc
1 changed files with 5 additions and 2 deletions
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7
setup/ssl.sh
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@ -19,7 +19,7 @@
#
# The Diffie-Hellman cipher bits are used for SMTP and HTTPS, when a
# Diffie-Hellman cipher is selected during TLS negotiation. Diffie-Hellman
# provides Perfect Forward Secrecy.
# provides Perfect Forward Secrecy.
source setup/functions.sh # load our functions
source /etc/mailinabox.conf # load global vars
@ -93,6 +93,9 @@ fi
# Generate some Diffie-Hellman cipher bits.
# openssl's default bit length for this is 1024 bits, but we'll create
# 2048 bits of bits per the latest recommendations.
# use -dsaparam, as it's just as secure, but waaay faster
# http://security.stackexchange.com/questions/95178/diffie-hellman-parameters-still-calculating-after-24-hours
if [ ! -f $STORAGE_ROOT/ssl/dh2048.pem ]; then
openssl dhparam -out $STORAGE_ROOT/ssl/dh2048.pem 2048
hide_output \
openssl dhparam -dsaparam -out $STORAGE_ROOT/ssl/dh2048.pem 2048
fi